A modified zone model for estimating equivalent room thermal capacity

作     者：Hua CHEN Xiaolin WANG 

作者机构：Tianjin Key Laboratory of Refrigeration Technology Tianjin Universityof Commerce Tianjin 300134 China School of Engineering The University of Tasmania Hobart Tasmania 7001 Australia 

出 版 物：《Frontiers in Energy》 (能源前沿（英文版）)

年 卷 期：2013年第7卷第3期

页      面：351-357页

核心收录：

学科分类：0711[理学-系统科学] 07[理学] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 081404[工学-供热、供燃气、通风及空调工程] 0814[工学-土木工程] 

主　　题：room model thermal network analysis trans- fer function heating ventilation and air conditioning (HVAC) system simulation 

摘      要：The zone model has been widely applied in control analysis of heating, ventilation and air conditioning （HVAC） systems to achieve a high building efficiency. This paper proposed a modified zone model which is much simpler in the HVAC system simulation and has the similar accuracy to the complicated simulation model. The proposed model took into consideration the effect of envelop heat reservoir on the room indoor temperature by introducing the thermal admittance of the inner surfaces of the building enclosure. The thermal admittance for the building enclosure was developed based on the building thermal network analytical theory and transfer function method. The efficacy of the proposed model was demonstrated by comparing it with the complicated model -- heat balance method （HTB2 program）. The predicted results from the proposed model well agreed with those from the complicated simulation. The proposed model can then make the HVAC system dynamic simulation much faster and more acceptable for control design due to its simplicity and efficiency.