基于热电制冷的空气制水器的试验研究  

Experimental study on air water generator based onthermoelectric cooler

作　　者：王杰 索艳格 张治国 楼汉青 WANG Jie;SUO Yan ge;ZHANG Zhiguo;LOU Hanqing(School of Mechanical and Energy Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,Zhejiang,China)

机构地区：[1]浙江科技大学机械与能源工程学院,杭州310023

出　　处：《浙江科技学院学报》2024年第3期185-194,217,共11页Journal of Zhejiang University of Science and Technology

基　　金：浙江省自然科学基金项目(LZ23E060001)。

摘　　要：【目的】为了解决从空气中取水的高能耗和低效率问题,设计了一种利用热电制冷器(thermoelectric cooler,TEC)进行空气制水的装置。【方法】首先结合空气冷凝制水原理,利用TEC将散热翅片表面温度降低至露点温度以下;然后使装置与空气进行热量交换,从而实现空气中水蒸气的冷凝;最后考察了在不同输入电压和散热翅片面积下TEC的热力学参数对系统的能效比(coefficient of performance,COP)及比能耗的影响。【结果】当输入电压为4 V、热端循环冷却水流速为0.3 L/min、散热翅片面积为20320 mm 2时,空气制水器比能耗最低,为2135.27 kW·h/m 3,系统的最佳COP为2.7。相对于现有研究,本试验通过对空气制水装置输入电压和散热翅片面积等参数的优化,将从空气中制水的能耗有效降低了13.8%。【结论】本研究结果为降低空气制水过程中的高能耗和提高空气制水过程中的系统效率提供了一定的技术支持。[Objective]In order to address problems of high energy consumption and low efficiency associated with extracting water from the air,a device utilizing a thermoelectric cooler(TEC)was designed for air water generation.[Method]First,based on the principle of air condensation for water production,TEC was used to reduce the surface temperature of the heat sink fins below the temperature of dew point;then,the device was made to exchange heat with the air so as to realize the condensation of water vapor in the air;finally,the effects of the thermodynamic parameters of TEC on the coefficient of performance(COP)and specific energy consumption of the system were investigated at different input voltages and areas of the heat sink fins.[Result]When the input voltage is set at 4 V,the cooling water flow rate at the hot side is 0.3 L/min,and the heat sink fin area is 20320 mm 2,the air water generator achieves a minimum specific energy consumption of 2135.27 kW·h/m 3,with the optimum COP for the system being 2.7.Compared with existing studies,this experiment effectively reduces the energy consumption of water production from air by 13.8%by optimizing parameters such as the input voltage of the air water generator and the area of the heat sink fins.[Conclusion]The research findings of this experiment provide some technical support for reducing the high energy consumption and improving the system efficiency during the air water generation process.

关 键 词：空气制水 热电制冷器 比能耗 能效比 

分 类 号：TB657.8[一般工业技术—制冷工程]