Gao Yuping,Wen Chengyu,Shi Wenxing,et al.Research on Key Parameters of a Building-Load Model for Dynamic Performance Measurement of Air Conditioner[J].Journal of Refrigeration,2026,47(03):83-92.
Gao Yuping,Wen Chengyu,Shi Wenxing,et al.Research on Key Parameters of a Building-Load Model for Dynamic Performance Measurement of Air Conditioner[J].Journal of Refrigeration,2026,47(03):83-92.DOI: 10.12465/issn.0253-4339.20250301002.
Research on Key Parameters of a Building-Load Model for Dynamic Performance Measurement of Air Conditioner
鉴于实验室稳态工况测量无法充分反映空调器的真实性能问题,基于虚拟建筑的房间空调器动态性能测量已成为当前的研究热点。本文通过模拟仿真和模型分析方法,确定了房间空调器性能动态测量关键参数:建筑的负荷点、0负荷点、热冷比、显热比、选型系数和房间有效热容和湿容,并通过实验验证了动态性能测量方法的可行性。结果显示:适用于我国平均建筑的房间空调器的选型系数制冷季可取1.33,对于安装2.4 kW空调的房间(12~20 m
Given that measurements made under steady-state laboratory conditions cannot fully reflect the actual performance of air conditioners, the dynamic measurement of room air conditioner performance based on virtual buildings has become a research hotspot. This study determines the key parameters for the dynamic measurement of room air conditioner performance via simulation and model analysis methods, focusing on the heat load of the building, the zero-load point, the heat-to-cold ratio, the sensible-heat ratio, the selection coefficient, and the room's effective heat capacity and moisture capacity. The feasibility of this dynamic performance-measurement method is experimentally verified. The results show that for air conditioners applicable to average buildings in China, the selection coefficient for the cooling season was 1.33. For rooms equipped with an air conditioner with 2.4 kW nominal capacity (12-20 m
2
), the effective heat capacity was 240-300 kJ/K, and the moisture capacity was 50-100 kg. Based on these parameters, a dynamic performance test of a 3.5 kW air conditioner was conducted in the laboratory. These parameters resulted in a dynamic energy efficiency 31.8% lower than the steady-state energy efficiency, thus more accurately reflecting the actual performance of the air conditioner.
Minimum allowable values of the energy efficiency and energy efficiency grades for room air conditioners : GB 21455—2019 [S]. Beijing : Standards Press of China , 2020 .
YANG Zixu , DING Lianrui , XIAO Hansong , et al . All-condition measuring methods for field performance of room air conditioner [J]. Applied Thermal Engineering , 2020 , 180 : 115887 .
CONANT A , PROCTOR J . Field tests of specially selected air conditioners for hot dry climates [C]// American Council for an Energy Efficient Economy . Pacific Grove , 2008 .
Office of Energy Efficiency and Renewable Energy , Department of Energy . Energy conservation program: test procedures for central air conditioners and heat pumps [EB/OL]. ( 2022-10-25 )[ 2025-01-15 ]. https://www.federalregister.gov/documents/2022/10/25/2022-22257/energy-conservation-program-test-procedure-for-central-air-conditioners-and-heat-pumps https://www.federalregister.gov/documents/2022/10/25/2022-22257/energy-conservation-program-test-procedure-for-central-air-conditioners-and-heat-pumps .
WATANABE C , OHASHI E I , HIROTA M , et al . Evaluation of annual performance of multi-type air-conditioners for buildings [J]. Journal of Thermal Science and Technology , 2009 , 4 ( 4 ): 483 - 493 .
YANG Zixu , DING Lianrui , XIAO Hansong , et al . Field performance of household room air conditioners in Yangtze River Region in China: case studies [J]. Journal of Building Engineering , 2021 , 34 : 101952 .
DU Ping , CHEN Yuanyuan , LIU Rensheng . Simulation research on frequently used frequency control technology of inverter air conditioner [J]. Journal of Appliance Science & Technology , 2019 ( 1 ): 42 - 44 .
Performance rating of variable refrigerant flow (VRF) multi-split air-conditioning and heat pump equipment: AHRI 1230-2021 [S]. Arlington : Air-Conditioning, Heating, and Refrigeration Institute , 2021 .
Bundesanstalt für Materialforschung und -prüfung (BAM) . Proposal for the revision of the harmonized test standard EN 14825, for the testing and rating of air conditioners and heat pumps at part load conditions and calculation of seasonal performance [R]. Berlin : BAM , 2019 .
Load-based and climate-specific testing and rating procedures for heat pumps and air conditioners: CSA SPE07:23 [S]. Toronto : CSA Group , 2023 .
CHENG L , DHILLON P , HORTON W T , et al . Automated laboratory load-based testing and performance rating of residential cooling equipment [J]. International Journal of Refrigeration , 2021 , 123 : 124 - 137 .
CHENG L , PATIL A , DHILLON P , et al . Impact of virtual building model and thermostat installation on performance and dynamics of variable-speed equipment during load-based tests [C]// International Refrigeration and Air Conditioning Conference . West Lafayette, Purdue University , 2018 .
YAN Da , XIE Xiaona , SONG Fangting , et al . Building environment design simulation software DeST(1): an overview of developments and information of building simulation and DeST [J]. Journal of HV &AC , 2004 , 34 ( 7 ): 48 - 56 .
YANG Zixu , GAO Yuping , ZHOU Yujue , et al . Study on building load characteristics for dynamic performance measurement of air conditioner [J]. Journal of Appliance Science & Technology , 2024 ( Suppl. 1 ): 74 - 79 .
SHI Wenxing , YANG Zixu , WANG Baolong . Division of outdoor nominal condition of air source heat pumps in China [J]. Journal of Refrigeration , 2019 , 40 ( 5 ): 1 - 12 .
ANTONOPOULOS K A , KORONAKI E P . On the dynamic thermal behaviour of indoor spaces [J]. Applied Thermal Engineering , 2001 , 21 ( 9 ): 929 - 940 .
LU Yaoqing . Practical heating and air conditioning design manual [M]. 2nd ed . Beijing : China Architecture & Building Press , 2008 .
YANG Zixu , DING Lianrui , XIAO Hansong , et al . Field performance of household room air conditioners in Yangtze River Region in China: case studies [J]. Journal of Building Engineering , 2021 , 34 : 101952 .
CAO Xiaolin , LI Xionglin , YU Shouxian , et al . Investigation on measurement uncertainty in air conditioner performance-testing bench [J]. Journal of Refrigeration , 2009 , 30 ( 5 ): 58 - 62 .
DAI Shilong , WANG Min , QI Shufang , et al . Simplified calculation of uncertainty in room air-conditioner measurement with air enthalpy test method [J]. Journal of Refrigeration , 2010 , 31 ( 6 ): 51 - 55 .
Uncertainty Evaluation of Dynamic Energy Efficiency Testing for Room Air Conditioner
Recent Progress and Comparative Analysis of Dynamic Energy Efficiency Standards for Room Air Conditioners
Comparison and Development Trends of Energy Efficiency Characterization Methods for Room Air Conditioners in China and ASEAN Countries
Analysis on APF Calculation Problem Caused by the Optional Method to Obtaining Performance Parameters of Low-temperature Intermediate Refrigeration Condition in GB 21455—2019
Theoretical Framework of Performance Consistency Index and Its Application in Operational Diagnostics for Air-Source Heat Pumps
Related Author
Cheng Jianhong
Ding Yi
Ding Guoliang
Cao Haomin
Wang Longyan
Cheng Jianhong
Wang Longyan
Cao Haomin
Related Institution
Chinese National Institute of Standardization
School of Automation and Intelligent Sensing, Shanghai Jiao Tong University
School of Mechanical Engineering, Shanghai Jiao Tong University