Research On The Technology Of Solar Energy And Heat Source Tower Heat Pump Combined Heating System

The cold and heat source is the energy supply center to maintain a comfortable construction environment conditions,and it plays a major role in building air conditioning system’s investment and operation energy cost,so the selection and design of it has already played a key role to reduce building energy consumption.As an emerging technology,the solar energy and heat source tower heat pump combined system mainly absorb the solar energy and air energy to load the room.Because of its non-pollution and high efficiency,a vast majority of scholars pay close attention to it in recent years.Therefore,it is very necessary to have a research on this combined system for the purpose of energy-saving and emission-reducing.First of all,the study has introduced a solar energy and heat source tower heat pump combined heating system which is available for hot summer and cold winter area,including the classification of solar system and heat source tower heat pump system,their operation principles and their advantages.Though all above,there is a result that this system has a wide range of application prospects.Secondly,the research has chosen the main equipment of the system based on a proposed project in Wuhan by dissecting the components and the system model,analyzing the heat transfer model of the internal module and the connecting position of the system,giving the way of coupling analysis based on building the mathematical model,calculation method,data processing method and error analysis,which could pave the way for the software simulation by doing these.It is proved that this system is feasible for the application of heat supply in Wuhan,which is the typical city of hot summer and cold winter.Thirdly,The Trnsys software has been used to simulate the proposed project.And according to the data obtained from the records of a data item we analyzed if the heat and refrigeration coefficient meet the design requirements of the system,four categories’ heat and refrigeration coefficients have been founded under different working conditions of the system.The operating rules and best operating condition is given through discussing the performance influence of the air’s dry wet bulb temperature and solar radiation to the system.Finally,through comparing the solar energy and heat source tower combined system with the conventional air cooling heat pump system and water chiller plus gas boiled system in the economic benefits and environment benefits part,a result is given that this system has great use value and energy efficiency in hot summer and cold winter area.Through summarizing the content of the full text of the study above,advantages and disadvantages of the system and some suggestion has been given for the further research.