The Study Of Application Of Sewage Source Heat Pump In Subway Station Public Area Air Conditioning System Based On DeST

With the rapid development of the global economy and the acceleration of the modernization process,energy crisis and environmental pollution have seriously hindered the progress of science and technology and social development.The search for new clean and renewable energy sources and the effective utilization and development of traditional energy sources have become the focus of research.Sewage source heat pump as a new type of clean energy utilization,has many characteristics of environmental protection,renewable,widely distributed,especially suitable for city public facilities?such as stations,subway stations and other auxiliary?temperature control.It can effectively reduce the energy consumption of city public facilities,to achieve energy saving and emission reduction.This paper takes a city standard subway station air conditioning system as the research object,and designs a set of sewage source heat pump auxiliary temperature control system which is suitable for the traditional subway air conditioning system.First of all,it is evaluated of the local climate,wastewater characteristics and potential.The city sewage power and heating and cooling area are calculated;Secondly,the subway station was simulated by DeST software,and several commonly air conditioning system is analyzed about energy consumption and comfort;auxiliary temperature control simulation is taken for air conditioning system of high comprehensive evaluation,and the simulation results are analyzed and summarized;Finally,the primary energy efficiency,energy saving and environmental protection of sewage source heat pump system is analyzed in this study.Through the study of the subject,the following conclusions are drawn: Taiyuan city sewage water is rich and stable,more heat storage.Sewage heat can provide 1.75 million m² of summer cooling area and 3.36 million m² of winter heating area.Subway station temperature and humidity independent control air conditioning is more energy-saving and comfortable than other types of air-conditioning system.Air-conditioning system is added sewage source heat pump unit.The temperature and humidity is suitable and the energy-saving is good in air-conditioning seasonal.The primary energy utilization rate of sewage source heat pump system is up to 1.27,The unit shows a certain amount of coal savings and energy saving.For the four common air pollutants,sewage source heat pump is environmentally friendly,especially CO₂ emissions,compared to other units,the daily emissions were hundreds or thousands of kilograms.