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Application of terminal box optimization of single‐duct air‐handling units
Author(s) -
Cho YoungHum,
Wang Gang,
Liu Mingsheng
Publication year - 2010
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.1544
Subject(s) - setpoint , airflow , hvac , thermal comfort , duct (anatomy) , air conditioning , energy recovery ventilation , variable air volume , energy consumption , automotive engineering , room air distribution , thermostat , engineering , ventilation (architecture) , simulation , environmental science , computer science , mechanical engineering , electrical engineering , meteorology , medicine , physics , pathology , artificial intelligence
Terminal boxes maintain room temperature by modulating supply air temperature and airflow in building heating, ventilation and air‐conditioning (HVAC) systems. Terminal boxes with conventional control sequences often supply inadequate airflow to a conditioned space, resulting in occupant discomfort, or provide excessive airflow that wastes significant reheat energy. In this study, the procedure for the optimal minimum airflow setpoint was developed to improve thermal comfort and reduce energy consumption. The determined minimum airflow setpoint was applied in an office building air‐conditioning system. Improvements in indoor thermal comfort and energy reduction were verified through measurement. The results show that the minimum airflow reset can stably maintain room temperature, satisfy comfort standards and reduce energy consumption compared with the conventional control. Copyright © 2009 John Wiley & Sons, Ltd.