Study on the Control Strategy of Ground Source Heat Pump of Complex Buildings

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Dandan, Zhang^1 ; Wei, Li^1 ; Siyi, Tang^1

College of Urban Construction, Nanjing Tech University, Nanjing

210000, China^1

关键词: Annual energy consumption;    Complex buildings;    Control strategies;    Design and operations;    Guideline values;    Operating strategy;    Optimal operation;    Tube heat exchangers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/5/052053/pdf
DOI  :  10.1088/1755-1315/153/5/052053

来源: IOP

【 摘 要 】

The complex building group is a building group which integrates residential, business and office. Study on the operation of buried tube heat exchanger (BHE) with 30%, 50%, 70% and 100% occupancy rate by numerical simulation under the condition of full operation of the business and office, the optimal operation control strategy of a hybrid ground-source heat pump (HGSHP) system with different occupancy rates can be obtained. The results show that: at low occupancy rate the optimal operation control of the heat pump system is to use the cooling tower in the valley load period (June and September) and the heat absorption of the buried tube in winter; While at high occupancy rates, opening the cooling tower when the temperature of the outlet of the BHE is 2 degrees centigrade higher than the temperature of the wet bulb at the corresponding time is the optimal operating strategy. This paper is based on the annual energy consumption and optimization of soil temperature rise, which has an important guideline value for the design and operation of HGSHP system in complex buildings.