多源双压缩机复合源热泵系统的初步研究的中期报告

多源双压缩机复合源热泵系统的初步研究的中期报告AbstractThis midterm report presents a preliminary study on the multi-source

多源双压缩机复合源热泵系统的初步研究的中期报告 Abstract This midterm report presents apreliminary study on the multi-source dual-compressor composite source heat pump (MSDCHP) system for space heating and cooling. The system consists of thermal energy storage tanks, awater source heat pump, an air source heat pump, and asolar-thermal collector. The two compressors in the system operate independently, which increases the flexibility of the system under different operating conditions. The objective of this study is to analyze the system performance and energy savings under different scenarios using simulation models. Introduction With the increasing demand for energy-efficient buildings, the MSDCHP system has received much attention due to its high efficiency and environmental benefits. The MSDCHP system combines multiple sources of renewable energy, including air, water, and solar-thermal, to achieve space heating and cooling while reducing energy consumption and greenhouse gas emissions. Methodology Asimulation model for the MSDCHP system was developed in TRNSYS software. The model includes awater source heat pump, an air source heat pump, asolar-thermal collector, and two thermal energy storage tanks. The system was simulated under different operating scenarios, including cooling and heating modes, and different time periods of the day and year. Results and Discussion The simulation results show that the MSDCHP system has high energy savings compared to conventional heating and cooling systems. The dual-compressor operation allows for greater flexibility in system operation and can achieve improved performance over single-compressor systems. The solar-thermal collector and water source heat pump proved to be effective in the heating mode, while the air source heat pump was more effective in the cooling mode. The thermal energy storage tanks were helpful in maintaining system performance during periods of low solar radiation. Conclusion