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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Autores principales:	Danilo Ferreira de Souza, Emeli Lalesca Aparecida da Guarda, Ildo Luis Sauer, Hédio Tatizawa
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	motor efficiency level pump efficiency MEPS guidelines Technology T
Acceso en línea:	https://doaj.org/article/0979ab3b68584f4ea5901e9b4f1b9c42
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spelling	oai:doaj.org-article:0979ab3b68584f4ea5901e9b4f1b9c422021-11-11T15:56:07ZEnergy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings10.3390/en142171521996-1073https://doaj.org/article/0979ab3b68584f4ea5901e9b4f1b9c422021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7152https://doaj.org/toc/1996-1073With 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.Danilo Ferreira de SouzaEmeli Lalesca Aparecida da GuardaIldo Luis SauerHédio TatizawaMDPI AGarticlemotor efficiency levelpump efficiencyMEPSguidelinesTechnologyTENEnergies, Vol 14, Iss 7152, p 7152 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	motor efficiency level pump efficiency MEPS guidelines Technology T
spellingShingle	motor efficiency level pump efficiency MEPS guidelines Technology T Danilo Ferreira de Souza Emeli Lalesca Aparecida da Guarda Ildo Luis Sauer Hédio Tatizawa Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings
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.
format	article
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
title	Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings
title_short	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_sort	energy efficiency indicators for water pumping systems in multifamily buildings
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/0979ab3b68584f4ea5901e9b4f1b9c42
work_keys_str_mv	AT daniloferreiradesouza energyefficiencyindicatorsforwaterpumpingsystemsinmultifamilybuildings AT emelilalescaaparecidadaguarda energyefficiencyindicatorsforwaterpumpingsystemsinmultifamilybuildings AT ildoluissauer energyefficiencyindicatorsforwaterpumpingsystemsinmultifamilybuildings AT hediotatizawa energyefficiencyindicatorsforwaterpumpingsystemsinmultifamilybuildings
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Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings

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