| 摘要: |
| 设计了一种采用热电制冷的并接式空气隙膜蒸馏系统，以热电制冷替代机械式制冷为膜蒸馏过程提供冷量。通过对膜蒸馏过程与热电制冷的匹配研究，给出了最佳匹配工况的基本要求。制作了具有水冷散热热电制冷的膜蒸馏冷腔，对单片热电制冷器采用风冷散冷的制冷性能进行研究，结果表明：一定热端散热强度下，热电制冷膜蒸馏冷腔的冷面温度可满足膜蒸馏运行；当热端循环水进口温度为20℃、流量为100L/h、风机风量为660m3/h、热电制冷器工作电流为5.5A时，热电制冷量为87.1W，制冷效率为1.3，二者均为最大值，且预测相应理论蒸馏通量为40kg/（m2?h）。研究结果为小型太阳能热电制冷空气隙膜蒸馏系统的理论研究和实际应用奠定了基础。 |
| 关键词: 膜蒸馏 热电制冷 匹配理论 |
| DOI： |
| Received:November 03, 2012 |
| 基金项目:国家自然科学基金（51266007)资助项目 |
|
| Application Research of Thermoelectric Refrigeration in Air Gap Membrane Distillation System |
|
Yang Shengnan1, Yang Xiaohong1, Tian Rui1,2, Yin Xiucui1
|
| (1.College of Energy and Power Engineering, Inner Mongolia University of Technology;2.Renewable Energy Laboratory in Inner Mongolia) |
| Abstract: |
| A Parallel-Connected AGMD system was designed, which uses thermoelectric refrigeration instead of mechanical refrigeration to provide refrigeration capacity for membrane distillation. With the analysis of matching method between membrane distillation and thermoelectric refrigeration, the basic requirements of the optimum matching mode have been given out. A thermoelectric refrigeration membrane distillation cold chamber with water cooled heat dissipation components was built to research the refrigeration performance of a TEC with air-cooled model in its cold side. The results show that the cryogenic temperature of the thermoelectric refrigeration membrane distillation cold chamber can meet the membrane distillation operation requirement under constant intensity of heat dissipation. Under the experimental conditions of inlet water of 20℃ and 100L/h and air flow rate of 660m3/h, when the working current of TEC is 5.5 A, the thermoelectric refrigerating capacity is 87.1 W and cooling efficiency is 1.3, which reaches the maximum of both. The corresponding theoretical distillation flux is calculated to be 40 kg/(m2?h). This investigation establishes the foundation for the theoretical research and practical application of solar air gap membrane distillation system with thermoelectric refrigeration. |
| Key words: Membrane Distillation Thermoelectric Refrigeration Matching Theory |
