{"id":2461,"date":"2023-05-04T20:02:14","date_gmt":"2023-05-04T18:02:14","guid":{"rendered":"https:\/\/research.dii.unipd.it\/tes\/?page_id=2461"},"modified":"2026-04-11T15:35:31","modified_gmt":"2026-04-11T13:35:31","slug":"pumping-unit","status":"publish","type":"page","link":"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/","title":{"rendered":"Optimization of pumping units"},"content":{"rendered":"<div class=\"gridContainer\">\n<div class=\"row\">\n<div class=\"col-xs-12 col-sm-12\">\n<h4 class=\"nova-e-text nova-e-text--size-xl nova-e-text--family-sans-serif nova-e-text--spacing-xs nova-e-text--color-inherit project-details-header__title\" style=\"text-align: center\"><span style=\"color: #000000\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-2505 size-mesmerize-full-hd\" src=\"https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2023\/05\/Tianxu-Yan-PhD-3-1920x687.jpg\" alt=\"Tianxu Yan PhD\" width=\"1920\" height=\"687\" srcset=\"https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2023\/05\/Tianxu-Yan-PhD-3-1920x687.jpg 1920w, https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2023\/05\/Tianxu-Yan-PhD-3-300x107.jpg 300w, https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2023\/05\/Tianxu-Yan-PhD-3-1024x367.jpg 1024w, https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2023\/05\/Tianxu-Yan-PhD-3-768x275.jpg 768w, https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2023\/05\/Tianxu-Yan-PhD-3-1536x550.jpg 1536w, https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2023\/05\/Tianxu-Yan-PhD-3.jpg 2000w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/span><\/h4>\n<h2 style=\"text-align: center\"><span style=\"color: #000000\"><strong>Research activities<\/strong><\/span><\/h2>\n<ul>\n<li>\n<h4 style=\"text-align: left\"><span style=\"color: #000000\">Numerical analyses <\/span>of the inflow influence on the instability of the pump system&#8217;s flow.<\/h4>\n<\/li>\n<li>\n<h4 style=\"text-align: left\"><span style=\"color: #000000\">Flow instability of the pump with influence of upstream waves.<\/span><\/h4>\n<\/li>\n<li>\n<h4 style=\"text-align: left\"><span style=\"color: #000000\">Ottimization of the Pump Unit.<\/span><span style=\"color: #000000\"><br \/>\n<\/span><\/h4>\n<\/li>\n<\/ul>\n<h2 style=\"text-align: justify\"><span style=\"color: #000000\">Projects<\/span><\/h2>\n<p>The project is dedicated to the study of energy loss mechanisms in low head pumping stations and to the key technologies for comprehensive optimization. The research specifically includes: the mechanism of impeller inlet flow pattern on the pumping unit performance, the energy loss mechanism of the outlet flow channel, the transient characteristics during variable speed and variable angle regulation, the pressure pulsation characteristics of the pumping unit performance under unsteady state conditions, and the comprehensive optimization of the pumping unit. The final goal of this reseach is to understand of the effect of incoming flow on pumping unit performance and the energy loss mechanism of pumping unit components in low-head pumping stations, and to provide theoretical guidance for comprehensive optimization of pumping units to help safe and stable operation of low-head pumping stations. In addition, this research method can be extended to other rotating machines with practical applications<\/p>\n<h2 style=\"text-align: center\"><span style=\"color: #000000\">Tools<\/span><\/h2>\n<p style=\"text-align: left\"><span style=\"color: #000000\"><strong>Facility<\/strong> \u2013 <span style=\"color: #0000ff\"><a style=\"color: #0000ff\" href=\"https:\/\/research.dii.unipd.it\/tes\/facilities\/pump-facility\">Pump Facility<\/a><\/span><\/span><\/p>\n<p style=\"text-align: left\"><span style=\"color: #000000\"><strong>Mesh Tools<\/strong> \u2013 <span style=\"color: #0000ff\"><a class=\"\" style=\"color: #0000ff\" href=\"https:\/\/www.ansys.com\">ICEM<\/a><\/span><\/span><\/p>\n<p style=\"text-align: left\"><span style=\"color: #000000\"><strong>CFD Tools<\/strong> \u2013 <span style=\"color: #0000ff\"><a class=\"\" style=\"color: #0000ff\" href=\"https:\/\/www.ansys.com\">ANSYS CFX<\/a><\/span><\/span><\/p>\n<p style=\"text-align: left\"><span style=\"color: #000000\"><strong>Post Processing Tools<\/strong> \u2013 <span style=\"color: #0000ff\"><a class=\"\" style=\"color: #0000ff\" href=\"https:\/\/www.ansys.com\">ANSYS<\/a><\/span><\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2 style=\"text-align: center;\"><span style=\"color: #000000;\">Contacts<\/span><\/h2>\n    <style>\n        .person-cards-grid {\n            display: grid;\n            gap: 20px;\n            align-items: start;\n            justify-content: center;\n            margin: 20px auto;\n        }\n\n        .person-cards-grid.cols-1-same-as-2 {\n            grid-template-columns: 380px;\n            max-width: 380px;\n        }\n\n        .person-cards-grid.cols-2-half {\n            grid-template-columns: repeat(2, 380px);\n            max-width: 780px;\n        }\n\n        .person-cards-grid.cols-3-inline {\n            grid-template-columns: repeat(3, 380px);\n            max-width: 1180px;\n        }\n\n        .person-cards-grid.cols-4-inline {\n            grid-template-columns: repeat(4, 300px);\n            max-width: 1260px;\n        }\n\n        .person-card-item {\n            background: #fff;\n            border: 1px solid #eee;\n            padding: 18px;\n            box-sizing: border-box;\n            width: 100%;\n            overflow: hidden;\n            transition: border-color 0.25s ease, box-shadow 0.25s ease;\n        }\n\n        .person-card-item:hover {\n            border: 1px solid #ccc;\n            box-shadow: 0 10px 24px rgba(0,0,0,0.08);\n        }\n\n        .person-card-photo-wrap {\n            text-align: center;\n            margin-bottom: 16px;\n        }\n\n        .person-card-photo {\n            display: block;\n            margin: 0 auto;\n            width: 198px;\n            height: 300px;\n            object-fit: cover;\n        }\n\n        .person-card-title {\n            margin: 0 0 10px 0;\n            text-align: center;\n            font-size: calc(0.5em + 10pt);\n            line-height: 1.2;\n            color: #000000;\n            font-weight: 700;\n        }\n\n        .person-card-role {\n            text-align: center;\n            margin-bottom: 16px;\n            color: #000000;\n        }\n\n        .person-card-contacts {\n            margin-top: 15px;\n            border-top: 1px solid #eee;\n            padding-top: 15px;\n            text-align: center;\n            color: #000000;\n        }\n\n        .person-card-phone {\n            margin-bottom: 8px;\n            text-align: center;\n            color: #000000;\n        }\n\n        .person-card-email a {\n            color: #808080;\n            word-break: break-all;\n            text-decoration: none;\n        }\n\n        .person-card-address {\n            margin-top: 8px;\n            text-align: center;\n            color: #000000;\n        }\n\n        .person-card-links {\n            margin-top: 18px;\n            text-align: center;\n        }\n\n        .person-card-links a.orcid-link {\n            display: inline-block;\n            margin: 6px 4px;\n            color: #00ccff !important;\n            text-decoration: none;\n            background: transparent !important;\n            border: none !important;\n            box-shadow: none !important;\n            padding: 0 !important;\n        }\n\n        .person-card-links a.orcid-link:hover {\n            color: #00ccff !important;\n            text-decoration: underline;\n            background: transparent !important;\n            border: none !important;\n            box-shadow: none !important;\n        }\n\n        .person-card-linkedin {\n            margin-top: 10px;\n        }\n\n        @media (max-width: 1280px) {\n            .person-cards-grid.cols-4-inline {\n                grid-template-columns: repeat(2, 300px);\n                max-width: 620px;\n            }\n        }\n\n        @media (max-width: 1200px) {\n            .person-cards-grid.cols-3-inline {\n                grid-template-columns: repeat(2, 380px);\n                max-width: 780px;\n            }\n        }\n\n        @media (max-width: 820px) {\n            .person-cards-grid.cols-2-half,\n            .person-cards-grid.cols-3-inline,\n            .person-cards-grid.cols-4-inline,\n            .person-cards-grid.cols-1-same-as-2 {\n                grid-template-columns: 1fr;\n                max-width: 100%;\n            }\n\n            .person-card-item {\n                max-width: 380px;\n                margin-left: auto;\n                margin-right: auto;\n            }\n\n            .person-cards-grid.cols-4-inline .person-card-item {\n                max-width: 300px;\n            }\n        }\n    <\/style>\n\n    <div class=\"person-cards-grid cols-2-half\">\n                                <article class=\"person-card-item\">\n                <div class=\"person-card-photo-wrap\">\n                    <img decoding=\"async\"\n                        src=\"https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2019\/05\/0-e1593289198105.jpg\"\n                        class=\"person-card-photo\"\n                        alt=\"PhD Giorgio   Pavesi\"\n                        loading=\"lazy\"\n                        width=\"198\"\n                        height=\"300\"\n                    >\n                <\/div>\n\n                <h2 class=\"person-card-title\"><strong>PhD Giorgio   Pavesi<\/strong><\/h2>\n\n                                    <p class=\"person-card-role\">\n                                                    <strong>Associate professor<\/strong>\n                                                                            <br>\n                            Group: <small>TURBOMACHINERY<\/small>\n                                            <\/p>\n                \n                                    <div class=\"person-card-contacts\">\n                                                    <div class=\"person-card-phone\">\n                                +39 049 827 6768                            <\/div>\n                        \n                                                    <div class=\"person-card-email\">\n                                <a href=\"mailto:giorgio.pavesi@unipd.it\" style=\"color: #808080;\">\n                                    giorgio.pavesi@unipd.it                                <\/a>\n                            <\/div>\n                        \n                                            <\/div>\n                \n                                    <div class=\"person-card-links\">\n                                                    <a href=\"https:\/\/orcid.org\/0000-0002-2315-4358\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"orcid-link\">\n                                Orcid Profile\n                            <\/a>\n                        \n                        \n                                            <\/div>\n                            <\/article>\n                                <article class=\"person-card-item\">\n                <div class=\"person-card-photo-wrap\">\n                    <img decoding=\"async\"\n                        src=\"https:\/\/research.dii.unipd.it\/tes\/wp-content\/uploads\/sites\/15\/2023\/05\/\u8bc1\u4ef6\u7167-Tianxu-Yan-1.jpg\"\n                        class=\"person-card-photo\"\n                        alt=\"MSc Tianxu Yan\"\n                        loading=\"lazy\"\n                        width=\"198\"\n                        height=\"300\"\n                    >\n                <\/div>\n\n                <h2 class=\"person-card-title\"><strong>MSc Tianxu Yan<\/strong><\/h2>\n\n                                    <p class=\"person-card-role\">\n                                                    <strong>PhD student<\/strong>\n                                                                            <br>\n                            Group: <small>TURBOMACHINERY<\/small>\n                                            <\/p>\n                \n                                    <div class=\"person-card-contacts\">\n                                                    <div class=\"person-card-phone\">\n                                +39 049 827 6700                            <\/div>\n                        \n                                                    <div class=\"person-card-email\">\n                                <a href=\"mailto:tianxu.yan@studenti.unipd.it\" style=\"color: #808080;\">\n                                    tianxu.yan@studenti.unipd.it                                <\/a>\n                            <\/div>\n                        \n                                            <\/div>\n                \n                            <\/article>\n            <\/div>\n    \n<h2 style=\"text-align: center;\"><span style=\"color: #000000;\">Publications<\/span><\/h2>\n<ol>\n<div class=\"teachpress_pub_list\"><form name=\"tppublistform\" method=\"get\"><a name=\"tppubs\" id=\"tppubs\"><\/a><\/form><div class=\"teachpress_publication_list\"><h3 class=\"tp_h3\" id=\"tp_h3_2022\">2022<\/h3><div class=\"tp_publication tp_publication_article\"><div class=\"tp_pub_image_left\"><\/div><div class=\"tp_pub_info\"><p class=\"tp_pub_author\"> Gan, Xingcheng;  Pei, Ji;  Pavesi, Giorgio;  Yuan, Shouqi;  Wang, Wenjie<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" onclick=\"teachpress_pub_showhide('32','tp_links')\" style=\"cursor:pointer;\">Application of intelligent methods in energy efficiency enhancement of pump system: A review<\/a> <span class=\"tp_pub_type tp_  article\">Journal Article<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_in\">In: <\/span><span class=\"tp_pub_additional_journal\">Energy Reports, <\/span><span class=\"tp_pub_additional_volume\">vol. 8, <\/span><span class=\"tp_pub_additional_pages\">pp. 11592-11606, <\/span><span class=\"tp_pub_additional_year\">2022<\/span>, <span class=\"tp_pub_additional_issn\">ISSN: 23524847<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_abstract_link\"><a id=\"tp_abstract_sh_32\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('32','tp_abstract')\" title=\"Show abstract\" style=\"cursor:pointer;\">Abstract<\/a><\/span> | <span class=\"tp_resource_link\"><a id=\"tp_links_sh_32\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('32','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_32\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('32','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span> | <span class=\"tp_pub_tags_label\">Tags: <\/span><a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=9#tppubs\" title=\"Show all publications which have a relationship to this tag\">Energy efficiency enhancement<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=80#tppubs\" title=\"Show all publications which have a relationship to this tag\">Energy-efficient control<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=62#tppubs\" title=\"Show all publications which have a relationship to this tag\">Inline pump<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=81#tppubs\" title=\"Show all publications which have a relationship to this tag\">Intelligent method<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=82#tppubs\" title=\"Show all publications which have a relationship to this tag\">Optimization<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=83#tppubs\" title=\"Show all publications which have a relationship to this tag\">Pump system<\/a><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_32\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@article{GanPavesi2022-01,<br \/>\r\ntitle = {Application of intelligent methods in energy efficiency enhancement of pump system: A review},<br \/>\r\nauthor = {Xingcheng Gan and Ji Pei and Giorgio Pavesi and Shouqi Yuan and Wenjie Wang},<br \/>\r\ndoi = {10.1016\/j.egyr.2022.09.016},<br \/>\r\nissn = {23524847},<br \/>\r\nyear  = {2022},<br \/>\r\ndate = {2022-01-01},<br \/>\r\nurldate = {2022-01-01},<br \/>\r\njournal = {Energy Reports},<br \/>\r\nvolume = {8},<br \/>\r\npages = {11592-11606},<br \/>\r\npublisher = {Elsevier Ltd},<br \/>\r\nabstract = {Energy consumption around the world is growing at an alarming rate. That brings enormous pressure on energy production and environmental issues. Nowadays, energy efficiency enhancement strategies are considered the crucial approaches to release this problem. The pumps accounts for nearly 21% of the world electricity consumption of industrial motor-driven systems. Hence, much research focused on improving the energy efficiency of the pumps and their systems. According to the works of literature, the level of design of pumps for most applications is already extremely high while the system performance could be further improved by regulations, and the average energy savings potential achievable through pump system adjustments is about 30%. This paper focuses on the advanced characteristic modeling methods, and energy efficiency enhancement regulation approaches for the parallel pumping system. A comprehensive summary of traditional scheduling methods and advanced regulation methods based on computational intelligence has been made to provide insight for future research.},<br \/>\r\nkeywords = {Energy efficiency enhancement, Energy-efficient control, Inline pump, Intelligent method, Optimization, Pump system},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {article}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('32','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_abstract\" id=\"tp_abstract_32\" style=\"display:none;\"><div class=\"tp_abstract_entry\">Energy consumption around the world is growing at an alarming rate. That brings enormous pressure on energy production and environmental issues. Nowadays, energy efficiency enhancement strategies are considered the crucial approaches to release this problem. The pumps accounts for nearly 21% of the world electricity consumption of industrial motor-driven systems. Hence, much research focused on improving the energy efficiency of the pumps and their systems. According to the works of literature, the level of design of pumps for most applications is already extremely high while the system performance could be further improved by regulations, and the average energy savings potential achievable through pump system adjustments is about 30%. This paper focuses on the advanced characteristic modeling methods, and energy efficiency enhancement regulation approaches for the parallel pumping system. A comprehensive summary of traditional scheduling methods and advanced regulation methods based on computational intelligence has been made to provide insight for future research.<\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('32','tp_abstract')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_32\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"ai ai-doi\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/dx.doi.org\/10.1016\/j.egyr.2022.09.016\" title=\"Follow DOI:10.1016\/j.egyr.2022.09.016\" target=\"_blank\">doi:10.1016\/j.egyr.2022.09.016<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('32','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><h3 class=\"tp_h3\" id=\"tp_h3_2020\">2020<\/h3><div class=\"tp_publication tp_publication_article\"><div class=\"tp_pub_image_left\"><\/div><div class=\"tp_pub_info\"><p class=\"tp_pub_author\"> Cavazzini, Giovanna;  Pavesi, Giorgio;  Ardizzon, Guido<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" onclick=\"teachpress_pub_showhide('52','tp_links')\" style=\"cursor:pointer;\">Optimal assets management of a water distribution network for leakage minimization based on an innovative index<\/a> <span class=\"tp_pub_type tp_  article\">Journal Article<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_in\">In: <\/span><span class=\"tp_pub_additional_journal\">Sustainable Cities and Society, <\/span><span class=\"tp_pub_additional_volume\">vol. 54, <\/span><span class=\"tp_pub_additional_issue\">iss. May, <\/span><span class=\"tp_pub_additional_pages\">pp. 101890, <\/span><span class=\"tp_pub_additional_year\">2020<\/span>, <span class=\"tp_pub_additional_issn\">ISSN: 22106707<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_abstract_link\"><a id=\"tp_abstract_sh_52\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('52','tp_abstract')\" title=\"Show abstract\" style=\"cursor:pointer;\">Abstract<\/a><\/span> | <span class=\"tp_resource_link\"><a id=\"tp_links_sh_52\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('52','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_52\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('52','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span> | <span class=\"tp_pub_tags_label\">Tags: <\/span><a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=115#tppubs\" title=\"Show all publications which have a relationship to this tag\">Energy performance indicators<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=116#tppubs\" title=\"Show all publications which have a relationship to this tag\">Leakage<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=82#tppubs\" title=\"Show all publications which have a relationship to this tag\">Optimization<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=117#tppubs\" title=\"Show all publications which have a relationship to this tag\">Pressure management<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=118#tppubs\" title=\"Show all publications which have a relationship to this tag\">Water distribution network<\/a><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_52\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@article{Cavazzini2020b,<br \/>\r\ntitle = {Optimal assets management of a water distribution network for leakage minimization based on an innovative index},<br \/>\r\nauthor = {Giovanna Cavazzini and Giorgio Pavesi and Guido Ardizzon},<br \/>\r\nurl = {https:\/\/doi.org\/10.1016\/j.scs.2019.101890},<br \/>\r\ndoi = {10.1016\/j.scs.2019.101890},<br \/>\r\nissn = {22106707},<br \/>\r\nyear  = {2020},<br \/>\r\ndate = {2020-01-01},<br \/>\r\njournal = {Sustainable Cities and Society},<br \/>\r\nvolume = {54},<br \/>\r\nissue = {May},<br \/>\r\npages = {101890},<br \/>\r\npublisher = {Elsevier},<br \/>\r\nabstract = {Leakage reduction in water distribution networks is an absolute priority and several pressure management strategies have been proposed in the literature to tackle this issue. However, the definition of an effective relationship between leakage and relevant and measurable parameters still represents a challenge. This paper presented a novel performance parameter, the Leakage Performance Index (LPI), to minimize leakages starting from pressure and flow rate measurements. This parameter creates a ranking among the different nodes in the network, by properly weighting the pressure of each node with the output flow from the node in order to focus the pressure management strategy on those nodes whose impact, in terms of leakage, is expected to be greater. To verify the effectiveness of the proposed LPI, a model of an existing water distribution district in Italy was developed in EPAnet and validated by comparison with experimental results. The valve settings of the model were then used as variables of time-dependent optimization procedures aimed at minimizing different objective functions. Different scenarios were considered by varying the minimum guaranteed pressure at the customer points. The LPI minimization strategy was efficient insofar as it indirectly minimized the leakages, achieving the same results of the leakage minimization strategy.},<br \/>\r\nkeywords = {Energy performance indicators, Leakage, Optimization, Pressure management, Water distribution network},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {article}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('52','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_abstract\" id=\"tp_abstract_52\" style=\"display:none;\"><div class=\"tp_abstract_entry\">Leakage reduction in water distribution networks is an absolute priority and several pressure management strategies have been proposed in the literature to tackle this issue. However, the definition of an effective relationship between leakage and relevant and measurable parameters still represents a challenge. This paper presented a novel performance parameter, the Leakage Performance Index (LPI), to minimize leakages starting from pressure and flow rate measurements. This parameter creates a ranking among the different nodes in the network, by properly weighting the pressure of each node with the output flow from the node in order to focus the pressure management strategy on those nodes whose impact, in terms of leakage, is expected to be greater. To verify the effectiveness of the proposed LPI, a model of an existing water distribution district in Italy was developed in EPAnet and validated by comparison with experimental results. The valve settings of the model were then used as variables of time-dependent optimization procedures aimed at minimizing different objective functions. Different scenarios were considered by varying the minimum guaranteed pressure at the customer points. The LPI minimization strategy was efficient insofar as it indirectly minimized the leakages, achieving the same results of the leakage minimization strategy.<\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('52','tp_abstract')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_52\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"fas fa-globe\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/doi.org\/10.1016\/j.scs.2019.101890\" title=\"https:\/\/doi.org\/10.1016\/j.scs.2019.101890\" target=\"_blank\">https:\/\/doi.org\/10.1016\/j.scs.2019.101890<\/a><\/li><li><i class=\"ai ai-doi\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/dx.doi.org\/10.1016\/j.scs.2019.101890\" title=\"Follow DOI:10.1016\/j.scs.2019.101890\" target=\"_blank\">doi:10.1016\/j.scs.2019.101890<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('52','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><h3 class=\"tp_h3\" id=\"tp_h3_2019\">2019<\/h3><div class=\"tp_publication tp_publication_article\"><div class=\"tp_pub_image_left\"><\/div><div class=\"tp_pub_info\"><p class=\"tp_pub_author\"> Cavazzini, Giovanna;  Bari, Serena;  McGrail, P.;  Benedetti, Vittoria;  Pavesi, Giorgio;  Ardizzon, Guido<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" onclick=\"teachpress_pub_showhide('67','tp_links')\" style=\"cursor:pointer;\">Contribution of Metal-Organic-Heat Carrier nanoparticles in a R245fa low-grade heat recovery Organic Rankine Cycle<\/a> <span class=\"tp_pub_type tp_  article\">Journal Article<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_in\">In: <\/span><span class=\"tp_pub_additional_journal\">Energy Conversion and Management, <\/span><span class=\"tp_pub_additional_volume\">vol. 199, <\/span><span class=\"tp_pub_additional_pages\">pp. 111960, <\/span><span class=\"tp_pub_additional_year\">2019<\/span>, <span class=\"tp_pub_additional_issn\">ISSN: 01968904<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_abstract_link\"><a id=\"tp_abstract_sh_67\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('67','tp_abstract')\" title=\"Show abstract\" style=\"cursor:pointer;\">Abstract<\/a><\/span> | <span class=\"tp_resource_link\"><a id=\"tp_links_sh_67\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('67','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_67\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('67','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span> | <span class=\"tp_pub_tags_label\">Tags: <\/span><a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=149#tppubs\" title=\"Show all publications which have a relationship to this tag\">Nanofluid<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=150#tppubs\" title=\"Show all publications which have a relationship to this tag\">Numerical Model<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=82#tppubs\" title=\"Show all publications which have a relationship to this tag\">Optimization<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=55#tppubs\" title=\"Show all publications which have a relationship to this tag\">ORC<\/a>, <a rel=\"nofollow\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/?tgid=59#tppubs\" title=\"Show all publications which have a relationship to this tag\">waste heat<\/a><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_67\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@article{Cavazzini2019b,<br \/>\r\ntitle = {Contribution of Metal-Organic-Heat Carrier nanoparticles in a R245fa low-grade heat recovery Organic Rankine Cycle},<br \/>\r\nauthor = {Giovanna Cavazzini and Serena Bari and P. McGrail and Vittoria Benedetti and Giorgio Pavesi and Guido Ardizzon},<br \/>\r\nurl = {https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0196890419309665},<br \/>\r\ndoi = {10.1016\/j.enconman.2019.111960},<br \/>\r\nissn = {01968904},<br \/>\r\nyear  = {2019},<br \/>\r\ndate = {2019-01-01},<br \/>\r\njournal = {Energy Conversion and Management},<br \/>\r\nvolume = {199},<br \/>\r\npages = {111960},<br \/>\r\nabstract = {This paper presents an in-depth investigation of the applications of an innovative nanofluid \u2013 suspensions of nanoparticles in a base fluid- in the ORC field, based on a new class of nanoparticles \u2013 termed Metal-Organic Heat Carriers (MOHCs) \u2013 molecularly engineered to reversibly uptake and release the working fluid molecules in which they are suspended. Unlike standard nanoparticles (i.e. Al2O3, Al, \u2026), these MOHCs make it possible to extract additional heat from the endothermic enthalpy of desorption which can be as much as twice the level of the latent heat of vaporization of the pure fluid phase alone. The paper illustrates the development of a nu- merical model for assessing the MOHC-based nanofluid gain in ORC systems. More specifically, the possible combination of the base fluid R245fa with the nanoparticle MIL101, a robust Metal Organic Heat Carrier, was considered. To properly model the reversible adsorption\/desorption process, experimental analyses were carried out to study the uptake of the R245fa in MIL101 at different operating conditions and departing from the experimental results, proper semi-empirical correlations were defined and adopted within the numerical model. The resulting performance of the MIL101\/R245fa were compared with those of pure organic fluids, whose cycle was optimized in order to maximize the area-to-power ratio. Promising results were achieved in terms of system efficiency increase and heat exchanger area reduction. 1.},<br \/>\r\nkeywords = {Nanofluid, Numerical Model, Optimization, ORC, waste heat},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {article}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('67','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_abstract\" id=\"tp_abstract_67\" style=\"display:none;\"><div class=\"tp_abstract_entry\">This paper presents an in-depth investigation of the applications of an innovative nanofluid \u2013 suspensions of nanoparticles in a base fluid- in the ORC field, based on a new class of nanoparticles \u2013 termed Metal-Organic Heat Carriers (MOHCs) \u2013 molecularly engineered to reversibly uptake and release the working fluid molecules in which they are suspended. Unlike standard nanoparticles (i.e. Al2O3, Al, \u2026), these MOHCs make it possible to extract additional heat from the endothermic enthalpy of desorption which can be as much as twice the level of the latent heat of vaporization of the pure fluid phase alone. The paper illustrates the development of a nu- merical model for assessing the MOHC-based nanofluid gain in ORC systems. More specifically, the possible combination of the base fluid R245fa with the nanoparticle MIL101, a robust Metal Organic Heat Carrier, was considered. To properly model the reversible adsorption\/desorption process, experimental analyses were carried out to study the uptake of the R245fa in MIL101 at different operating conditions and departing from the experimental results, proper semi-empirical correlations were defined and adopted within the numerical model. The resulting performance of the MIL101\/R245fa were compared with those of pure organic fluids, whose cycle was optimized in order to maximize the area-to-power ratio. Promising results were achieved in terms of system efficiency increase and heat exchanger area reduction. 1.<\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('67','tp_abstract')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_67\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"fas fa-globe\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0196890419309665\" title=\"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0196890419309665\" target=\"_blank\">https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0196890419309665<\/a><\/li><li><i class=\"ai ai-doi\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/dx.doi.org\/10.1016\/j.enconman.2019.111960\" title=\"Follow DOI:10.1016\/j.enconman.2019.111960\" target=\"_blank\">doi:10.1016\/j.enconman.2019.111960<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('67','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><\/div><\/div>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Research activities Numerical analyses of the inflow influence on the instability of the pump system&#8217;s flow. Flow instability of the pump with influence of upstream waves. Ottimization of the Pump Unit. Projects The project is dedicated to the study of energy loss mechanisms in low head pumping stations and to the key technologies for comprehensive&hellip; <br \/> <a class=\"read-more\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/\">Read more<\/a><\/p>\n","protected":false},"author":30,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"folder":[],"class_list":["post-2461","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Optimization of pumping units - TES Group<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/research.dii.unipd.it\/tes\/pumping-unit\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Optimization of pumping units - TES Group\" \/>\n<meta property=\"og:description\" content=\"Research activities Numerical analyses of the inflow influence on the instability of the pump system&#8217;s flow. Flow instability of the pump with influence of upstream waves. Ottimization of the Pump Unit. 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