Abstract
Household heat metering plays a significant role in building energy efficiency and has become an inevitable trend in northern China. Precise supplying aims to ensure indoor thermal comfort while realizing energy saving with occupants’ behavior. Due to the different indoor temperature, interior envelope material and occupancy rate of each room, the Adjacent Room Heat Transfer (ARHT) will greatly affect the fair heating charging under household heating metering. This study takes an office building in Beijing as the object to measure the indoor and outdoor temperature in winter. EnergyPlus is adopted to establish a building model and calculate the heating load. The time-dependent temperature of the simulated room is compared with the hourly measured temperature to validate model accuracy. The validated model is further adopted to calculate the ratio of ARHT under three different conditions. The result indicates all these three factors have important impacts on ARHT. The ratio of ARHT to the real total heating load could stay around 40% and even reach up to 70%. The result shows an unexpected influence of ARHT, while it provides a case study for fair allocation of heat charges, which is vital to the implementation of household heat metering in China.
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