Analysis On Energy Consumption And Economy Of Two Heat Pump Air Condition Systems And Traditional Air Condition System Of An Office Building In Chengdu

Cooling and heating source schemes of air condition system have an important impact on the energy consumption of buildings. In this thesis, the author compared the energy consumption and economy of Water-cooled screw +Gas Boiler system, ground-source heat pump system,air-source heat pump system of an office building in Chengdu, aiming to provide reference for determining suitable air condition system of the office building in Chengdu.The office building area is 6028.5 ?, and air conditioning area is 4010 ?. In this thesis, the author used Hongye software to calculate the cooling and heating load. The cooling load is 507 KW,and the heating load is 320 KW. The equipments of the three air condition system were selected based on the cooling and heating load.This thesis used the building energy simulation software EQUEST to simulate the annual energy consumption of three air condition systems. The traditional Water-cooled screw +Gas Boiler system's primary energy consumption is1999 GJ, and Air-source heat pump system's primary energy consumption is 1917 GJ, and Ground-source heat pump system's primary energy consumption is 1796 GJ. The result shows that the two kinds of heat pump system is more energy efficient than the traditional Water-cooled screw +Gas Boiler system and the ground-source heat pump system is the most energy efficient.This thesis compared the life cycle cost of the three air condition systems, and the result shows that the air-source heat pump is the most economical.Considering efficiency and economy, the author recommend air-source heat pump.