Discussion on energy-saving taking urban heat island effect into account

Urban heat island effect (UHI) is a universal phenomenon, which means the air temperature in urban districts is higher than in suburban. UHI results from multiple causes, such as underlying surface, artificial heat, greenhouse effect, etc. In summer, UHI leads to a great number of electrical power consumption by air-conditioners. UHI and air conditioning load interact in a very complex way. In this paper, the major ways are discovered, in which UHI affects air conditioning load. UHI, temperature and humidity comprehensive effect, accumulative effect result high air conditioning load together. Then, the air conditioning load is an important factor of UHI. The interrelationship between UHI and air conditioning load is discovered in this paper. It will be very beneficial to energy-saving and emission-reduction.