Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings
With the current concerns about sustainable development and energy consumption in buildings, water pumping systems have become essential for reducing energy consumption. This research aims to develop guidelines for the energy assessment of water pumping systems in multifamily buildings. The methodol...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/21/7152 |
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| author | Danilo Ferreira de Souza Emeli Lalesca Aparecida da Guarda Ildo Luis Sauer Hédio Tatizawa |
| author_facet | Danilo Ferreira de Souza Emeli Lalesca Aparecida da Guarda Ildo Luis Sauer Hédio Tatizawa |
| author_sort | Danilo Ferreira de Souza |
| collection | DOAJ |
| description | With the current concerns about sustainable development and energy consumption in buildings, water pumping systems have become essential for reducing energy consumption. This research aims to develop guidelines for the energy assessment of water pumping systems in multifamily buildings. The methodological procedures are: (i) definition of the efficiencies of electric motors; (ii) definition of pump efficiency levels; (iii) determination of energy consumption; and (iv) construction of the efficiency scale and guidelines for projects and assessments. The results obtained were that centrifugal pumps with 40% efficiency have higher energy consumption, regardless of the efficiency class of the electric motors, showing a 20% increase in electrical energy consumption. Lower efficiencies directly impact the energy efficiency rating of the water pumping system. Thus the 40% efficiency obtained energy efficiency rating “Very Low—VL” for all motor efficiency classes (between IE1 and IE5). At 60% efficiency, the energy efficiency level of the system was “Average—A”, gradually increasing to “Very High—VH”, as the energy consumption in the pumps decreased and the motors’ energy efficiency classes increased. It is concluded that designers and professionals in the area must consider the efficiency of the pumps, as they play a fundamental role in the classification of the system’s energy efficiency. It is also recommended to verify the energy efficiency of the water pumping system and implement design guidelines so that the pumping system achieves lower energy consumption, contributing to the building’s energy efficiency and sustainability. |
| first_indexed | 2024-03-10T06:03:16Z |
| format | Article |
| id | doaj.art-0979ab3b68584f4ea5901e9b4f1b9c42 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T06:03:16Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0979ab3b68584f4ea5901e9b4f1b9c422023-11-22T20:44:20ZengMDPI AGEnergies1996-10732021-11-011421715210.3390/en14217152Energy Efficiency Indicators for Water Pumping Systems in Multifamily BuildingsDanilo Ferreira de Souza0Emeli Lalesca Aparecida da Guarda1Ildo Luis Sauer2Hédio Tatizawa3Department of Electrical Engineering, Campus Cuiaba, Federal University of Mato Grosso, Cuiabá 78060-900, BrazilEnvironment Comfort Laboratory, Federal University of Santa Catarina, Florianopolis 88040-900, BrazilInstitute of Energy and Environment—IEE, University of Sao Paulo—USP, São Paulo 05508-010, BrazilInstitute of Energy and Environment—IEE, University of Sao Paulo—USP, São Paulo 05508-010, BrazilWith the current concerns about sustainable development and energy consumption in buildings, water pumping systems have become essential for reducing energy consumption. This research aims to develop guidelines for the energy assessment of water pumping systems in multifamily buildings. The methodological procedures are: (i) definition of the efficiencies of electric motors; (ii) definition of pump efficiency levels; (iii) determination of energy consumption; and (iv) construction of the efficiency scale and guidelines for projects and assessments. The results obtained were that centrifugal pumps with 40% efficiency have higher energy consumption, regardless of the efficiency class of the electric motors, showing a 20% increase in electrical energy consumption. Lower efficiencies directly impact the energy efficiency rating of the water pumping system. Thus the 40% efficiency obtained energy efficiency rating “Very Low—VL” for all motor efficiency classes (between IE1 and IE5). At 60% efficiency, the energy efficiency level of the system was “Average—A”, gradually increasing to “Very High—VH”, as the energy consumption in the pumps decreased and the motors’ energy efficiency classes increased. It is concluded that designers and professionals in the area must consider the efficiency of the pumps, as they play a fundamental role in the classification of the system’s energy efficiency. It is also recommended to verify the energy efficiency of the water pumping system and implement design guidelines so that the pumping system achieves lower energy consumption, contributing to the building’s energy efficiency and sustainability.https://www.mdpi.com/1996-1073/14/21/7152motor efficiency levelpump efficiencyMEPSguidelines |
| spellingShingle | Danilo Ferreira de Souza Emeli Lalesca Aparecida da Guarda Ildo Luis Sauer Hédio Tatizawa Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings Energies motor efficiency level pump efficiency MEPS guidelines |
| title | Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings |
| title_full | Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings |
| title_fullStr | Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings |
| title_full_unstemmed | Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings |
| title_short | Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings |
| title_sort | energy efficiency indicators for water pumping systems in multifamily buildings |
| topic | motor efficiency level pump efficiency MEPS guidelines |
| url | https://www.mdpi.com/1996-1073/14/21/7152 |
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