The Analysis Of The Operation Characteristics And Economy Forair Source Heat Pump With Wall-mounted Gas Boiler

With rising of the energy and environment problems,it is the best way to promote the use of renewable energy and clean energy.Beijing is cold region,belonging to the application of air source heat pump,and the natural gas is widely distributed in Beijing.In this paper,the user living in the multilayer residential building in Beijing independent use air source heat pump with wall-mounted gas boiler system of heating condition is analyzed.Different start-stop temperature of air source heat pump and air source heat pump for different heating load,to a certain extent,will affect the energy consumption and economy of the whole system.So in this paper,the joint operation mode are studied.First from the gravity of the energy depletion and environmental pollution problems,it illustrates the necessity of research on renewable energy and clean energy.This paper analyzes the influence of the heating way for energy consumption and environmental pollution and puts forward the feasibility of energy saving from the angle of heating.Air source heat pump and wall-mounted gas furnace has a great significance in the aspect of energy and environmental protection.This paper use the DeST simulation to analyze the hourly load of a multi-storey building in Beijing,and outputs the meteorological conditions of typical meteorological year in Beijing.According to the load to select the air source heat pump unit and the wall-mounted gas boiler.Using TRNSYS transient simulation software on the system modeling and simulation of heating in winter,and comparing a variety of different ways of operation.By controlling the start-stop point temperature of air source heat pump and the load ratio,simulation found that the more the air source heat pump running time value,the lower the energy consumption.Then comparing the economic for the combined heating system、the use of air source heat pump independent、independent wall-mounted gas boiler heating and combined heat、power centralized heating、central heating of coal fired boiler room and household electric heating system.Analysis found that the system cost of air source heat pump and gas bigualu relative to other three kinds of traditional heating to form low;in the combined heating system,air source heat pump running time is less,bear the load,the smaller the less cost in value.This paper,based on the analysis of energy consumption and economy analysis,found the best way of air source heat pump with wall-mounted gas boiler heating system to run is that air source heat pump to bear 50%~70%load.