Research On The Combined Cooling Heating And Power System And Solar Heating Complementary

Combined Cooling Heating and Power System is a kind of polygeneration total energy system,which makes the cooling,heating and power generation processes integrated based on the concept of cascade utilization of energy.The study for CCHP has been for several years at home and abroad,and it also has been a long time for developing the integration of CCHP and renewable energy system.At present,as an important part of building HVAC energy saving of air conditioning system,developing the integration of CCHP and renewable energy system is more and more valued in the field of building energy saving.This article did some research,analysis and summary on the integration of solar heating system and CCHP based on the scientific research ability and conditions of China Academy of Building Research Institute of Building Environment and Energy and through learning the scientific research technology and mentality of China Academy of Building Research.This article carried on complementary study aiming at CCHP and solar heating system.Firstly,some research was did through the use of actual project of distributed energy system in Beijing and accessed relevant information,to understand the existing operation of CCHP.By analysing the existing various types of CCHP and solar heating system,the research direction of this article was put forward,that was to realize the efficient utilization of energy and energy-saving operation though the use of complementary operation of solar heating system and CCHP.Then,the existing integration process and form of renewable energy system and CCHP was analysed as well as the research contents of the existing integration style.According to the winter heating period,combined with the author's own professional nature,new complementary form of solar heating system and CCHP was put forward,solar heating and CCHP complementary system and operation strategy was established,and index content and method of analysis and evaluation was established combined with the characteristics of new system and known important index to evaluate the system by referencing evaluation of renewable energy application in buildings engineering evaluation standard.With a typical case,the simulation of the solar heating and combined cooling,heating and power complementary system was put forward.The article was based on the DeST software of Tsinghua University and transient system simulation software TRNSYS of Solar Energy laboratory of the Wisconsin-Madison University.In this case,building model was build and the annual load data was simulated by using the DeST software,at the same time,the annual system operation was simulated and energy consumption was census and analysed by using TRNSYS transient simulation software according to the principle diagram.In addition,the conventional energy system model using gas boiler for heating as the same case model was established through the TRNSYS simulation software,and the annual system operation was simulated and energy consumption was census and analysed as well.Finally,annual operation energy consumption of these two systems were compared,the advantages of the solar heating and combined cooling,heating and power complementary system compared to the conventional energy system was analysed and evaluated,and the energy use and contribution to the environment quantity of solar heating and CCHP complementary system was calculated.In provides reference for the development and promotion os complementary integration of renewable energy and CCHP system.At the same time,it also provides support for the design of renewable energy and CCHP system in the future.