Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Validation of load based testing methodology for residential air conditioners and heat pumps
https://orcid.org/0000-0003-2033-8343
https://orcid.org/0000-0001-5004-5379
Highlights Validate the dynamic load-based testing and rating methodology for residential heat pumps. Compare the dynamic performance of a heat pump measured in a residential house facility with that measured in a psychrometric test laboratory. The simplified virtual building modeling approach effectively characterizes the load and dynamics of a typical residential building. The load-based testing methodology accurately characterizes the heat pump dynamic performance in the lab compared to the residential house.
Abstract A load-based testing method has been proposed to measure the overall dynamic performance of heat pumps and air conditioners, including their embedded controls and thermostats, in a laboratory setting. This method enables a test unit to respond to field-representative conditions emulated using a virtual building model. To adopt this methodology for next-generation rating standards, it is necessary to evaluate its ability to accurately capture a system's dynamic performance in a laboratory compared to a typical residential house. In this study, a 3-ton single-stage heat pump was initially tested in a two-story house located inside an environmental chamber with controllable ambient conditions. The same make and model of the heat pump was then tested in a psychrometric testing facility, employing the load-based testing method. The study aims to compare the cooling and heating mode performance and dynamic response between the house and laboratory tests, validate the virtual building modeling approach of the methodology, and determine load-based laboratory tests' effectiveness in capturing dynamic interactions between equipment and a residential house. The differences in coefficient of performance (COP) of the test unit between the two facilities were within 3 %, except for 9 % at 95°F (35 °C) and 5 % at 104°F (40 °C) outdoor temperature cooling dry-coil tests. The heat pump's cycling rate response, representing its dynamic response, matched well between the lab and house results. These findings demonstrate the effectiveness of the load-based testing methodology in capturing the dynamic performance of heat pumps in a laboratory setting.
Validation of load based testing methodology for residential air conditioners and heat pumps
https://orcid.org/0000-0003-2033-8343
https://orcid.org/0000-0001-5004-5379
Highlights Validate the dynamic load-based testing and rating methodology for residential heat pumps. Compare the dynamic performance of a heat pump measured in a residential house facility with that measured in a psychrometric test laboratory. The simplified virtual building modeling approach effectively characterizes the load and dynamics of a typical residential building. The load-based testing methodology accurately characterizes the heat pump dynamic performance in the lab compared to the residential house.
Abstract A load-based testing method has been proposed to measure the overall dynamic performance of heat pumps and air conditioners, including their embedded controls and thermostats, in a laboratory setting. This method enables a test unit to respond to field-representative conditions emulated using a virtual building model. To adopt this methodology for next-generation rating standards, it is necessary to evaluate its ability to accurately capture a system's dynamic performance in a laboratory compared to a typical residential house. In this study, a 3-ton single-stage heat pump was initially tested in a two-story house located inside an environmental chamber with controllable ambient conditions. The same make and model of the heat pump was then tested in a psychrometric testing facility, employing the load-based testing method. The study aims to compare the cooling and heating mode performance and dynamic response between the house and laboratory tests, validate the virtual building modeling approach of the methodology, and determine load-based laboratory tests' effectiveness in capturing dynamic interactions between equipment and a residential house. The differences in coefficient of performance (COP) of the test unit between the two facilities were within 3 %, except for 9 % at 95°F (35 °C) and 5 % at 104°F (40 °C) outdoor temperature cooling dry-coil tests. The heat pump's cycling rate response, representing its dynamic response, matched well between the lab and house results. These findings demonstrate the effectiveness of the load-based testing methodology in capturing the dynamic performance of heat pumps in a laboratory setting.
Validation of load based testing methodology for residential air conditioners and heat pumps
https://orcid.org/0000-0003-2033-8343
https://orcid.org/0000-0001-5004-5379
Highlights Validate the dynamic load-based testing and rating methodology for residential heat pumps. Compare the dynamic performance of a heat pump measured in a residential house facility with that measured in a psychrometric test laboratory. The simplified virtual building modeling approach effectively characterizes the load and dynamics of a typical residential building. The load-based testing methodology accurately characterizes the heat pump dynamic performance in the lab compared to the residential house.
Abstract A load-based testing method has been proposed to measure the overall dynamic performance of heat pumps and air conditioners, including their embedded controls and thermostats, in a laboratory setting. This method enables a test unit to respond to field-representative conditions emulated using a virtual building model. To adopt this methodology for next-generation rating standards, it is necessary to evaluate its ability to accurately capture a system's dynamic performance in a laboratory compared to a typical residential house. In this study, a 3-ton single-stage heat pump was initially tested in a two-story house located inside an environmental chamber with controllable ambient conditions. The same make and model of the heat pump was then tested in a psychrometric testing facility, employing the load-based testing method. The study aims to compare the cooling and heating mode performance and dynamic response between the house and laboratory tests, validate the virtual building modeling approach of the methodology, and determine load-based laboratory tests' effectiveness in capturing dynamic interactions between equipment and a residential house. The differences in coefficient of performance (COP) of the test unit between the two facilities were within 3 %, except for 9 % at 95°F (35 °C) and 5 % at 104°F (40 °C) outdoor temperature cooling dry-coil tests. The heat pump's cycling rate response, representing its dynamic response, matched well between the lab and house results. These findings demonstrate the effectiveness of the load-based testing methodology in capturing the dynamic performance of heat pumps in a laboratory setting.
Validation of load based testing methodology for residential air conditioners and heat pumps
Dhillon, Parveen (Autor:in) / Welch, Drew (Autor:in) / Butler, Brian (Autor:in) / Horton, W. Travis (Autor:in) / Braun, James E. (Autor:in)
Energy and Buildings ; 299
01.10.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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