ZEMCH 2015 - International Conference Proceedings | Page 98

6 Controlling patterns:Nobody was at home during daytime; Heating system was running continuously and periodically. Room temperatures were ranged from 18~24°C, Settings were not adjusted actively. Not zonal controlled and room temperatures were varied independently. Temperature of bedrooms were always higher than living room. ENG: 2.4(mean value 2), m3/(m2·month); Pcth: 97.5% (mean value 83%); 11 Controlling patterns: Nobody was staying at home at daytime; Heating system running periodically. Room temperatures were ranged from 19~23°C. Not zonal controlled. Settings were adjusted actively. Room temperatures varied independently. Temperature of bedroom (N) was sometimes higher than living room or bedroom(S). ENG: 0.8(mean value 2), m3/(m2·month); Pcth: 100.0% (mean value 83%); It was clear that, differences of household controlling patterns of appliance were always neglected in the widely used centralized heating system, which deserved more attention in energy efficiency perspective. The following results could be derived from case study. 96 ZEMCH 2015 | International Conference | Bari - Lecce, Italy