Study on energy-saving performance of a transcritical CO2 heat pump for food thermal process applications

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Liu, Yefeng^1 ; Meng, Deren^1 ; Chen, Shen^1

School of Energy and Power Engineering, University of Shanghai for Scienceand Technology, Shanghai

200093, China^1

关键词: Current heating;    Greenhouse gases emissions;    Heated waters;    Inlet water temperatures;    Primary energy savings;    Reduce energy consumption;    Thermal demands;    Thermal process;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/2/022036/pdf
DOI  :  10.1088/1755-1315/121/2/022036

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In food processing, there are significant simultaneous demands of cooling, warm water and hot water. Most of the heated water is used only once rather than recycled. Current heating and cooling systems consume much energy and emit lots of greenhouse gases. In order to reduce energy consumption and greenhouse gases emission, a transcritical CO2heat pump system is proposed that can supply not only cooling, but also warm water and hot water simultaneously to meet the thermal demands of food processing. Because the inlet water temperature from environment varies through a year, the energy-saving performance for different seasons is simulated. The results showed that the potential primary energy saving rate of the proposed CO2heat pump is 50% to 60% during a year.