Study On Air Source Heat Pump Assisted Solar Water Heating System Based On Energy Optimal Configuration

The energy problem is becoming severe.How to use new energy particularly renewable energy and how to improve the utilization of renewable energy resources are the effective ways to solve the energy problem.Solar energy is an ideal renewable alternative to fossil fuels,it is an inexhaustible source of energy.Also solar energy is a clean energy will not cause pollution to the environment.Although solar water heating system uses solar energy to produce hot water energy consumption is very small,but the solar water heating system by the impact of the climate is huge,so it can't achieve the all-weather production of hot water.The air source heat pump can absorb the heat energy of the air in the environment,but the energy consumption is much more than the solar water heating system.Therefore,the author is going to combine these two systems to one with air source heat pump associated solar water heating system.These two systems can make up for each other's weaknesses and give full play to their respective advantages,so to build one system can generate hot water of all-weather.This paper based on the knowledge of solar water heating system and air source heat pump to research the relevant theories of air source heat pump assisted solar water heating system.The author analyzes a unit of staff bathhouse in Tiandong county and design the hot water system of staff bathhouse by burning coal boiler retrofit of.I use the programmable controller(PLC)to control the system by intelligent,and use the configuration monitoring software to monitor control system,so that the system can achieve the purpose of energy optimization and utilization.Through the analysis of Tiandong county's climatic conditions and the water law of the staff bathhouse,the author completed for the calculation and selection of equipment and summed up the working modes of air source heat pump assisted solar water heating system.The control flow chart and configuration monitoring project of hot water system are designed.Finally,this paper analyzed the investment and operation cost of air source heat pump assisted solar water heating system and compared with other conventional hot water system in three aspects of energy saving,economic and environmental benefits.Although the air source heat pump assisted solar water heating system needs more investment in the initial,but it is the most economical and most environmentally friendly,lowest energy consumption system in long-term operation.It is a system which is worth popularizing to solve the energy problem.