LARGE-SCALE APPLICATION OF MUNICIPAL RECLAIMED WATER SOURCE HEAT PUMPS TO A DHC SYSTEM IN THE BEIJING OLYMPIC VILLAGE
The Olympic Village District Heating & Cooling (DHC), which located in the Beijing Qing River area, introduced the municipal reclaimed water source heat-pump system based on the promise of “Green Olympics” adopted by 2008 Beijing Olympic Games. This DHC system is the largest-scale use of municipal reclaimed water as heat source and sink in heatpump system so far in China. The system feasibility was verified by two years field experiments and continued commissioning over the winter 2007.The full load operation will start in June 2008. In this paper, the outline and feature of the DHC system were described. The fouling problem and its mitigation were discussed. The energy consumption and environment effects of this system were evaluated. The evaluation results showed that the Olympic Village DHC system could reduce primary energy consumption and greenhouse gas emissions by 40% in comparison with the district heating by boiler plant.