复叠式热功转换制热系统的性能分析

Performance Analysis of Cascade Heat Work Conversion System

通过搭建复叠式热功转换制热系统的实验平台,研究分析不同的运行工况对系统性能的影响,实验结果表明:当在系统允许的运行工况范围之内,随废水侧进口温度升高,系统能效比COP先增加后减小。当废水侧进口温度为66℃时,系统性能达到最优化。随清水侧进口温度的增加,系统能效比COP呈现减小的趋势。当清水侧进口温度为20℃时,系统性能达到最优化。随废水侧进口流量升高,系统能效比COP先增加后减小。当废水侧进口温度为17 m3/h时,系统性能达到最优化。随清水侧进口流量的增加,系统能效比COP呈现减小的趋势。当清水侧进口温度为10 m3/h时,系统性能达到最优化。且在上述工况下系统能效比COP最大可达到11.9。

By setting up the experimental platform of the overlapped heat work conversion heating system,the influence of different operating conditions on system performance was studied and analyzed.The experimental results show that:within the allowable operating conditions of the system,as the inlet temperature of waste water side increases,the system energy efficiency first increases and then decreases compared with COP.When the inlet temperature of wastewater is 66℃,the system performance is optimized.With the increase of inlet temperature on the clear water side,the system energy efficiency ratio of COP shows a trend of decreasing.When the inlet temperature of the clean water side is 20℃,the system performance is optimized.With the increase of the inlet flow on the waste water side,the system energy efficiency first increased and then decreased compared with the COP.When the inlet temperature of the waste water side is 17 m3/h,the system performance is optimized.With the increase of inlet flow on the clear water side,the system energy efficiency showed a trend of decreasing compared with COP.When the inlet temperature of the clean water side is 10 m3/h,the system performance is optimized.Moreover,under the above conditions,the maximum COP ratio of the system can reach 11.9.