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Development of a novel meso-scale vapor compression refrigeration system (mVCRS).

Author(s) : SUNG T., LEE D., KIM H. S., et al.

Type of article: Article

Summary

This paper presents a novel meso-scale vapor compression refrigeration system (mVCRS) consisting of an evaporator, a compressor, a condenser and an expansion nozzle. First, the micro channel evaporator is designed in order to ensure the robustness to the flow rate as well as the cooling load. The film-wise condenser is then built to increase the convective heat transfer coefficient between heat pipes and the refrigerant. In spite of its compact size, the proposed rotary vane type meso-scale compressor can achieve the high pressure ratio of 3.07 and the large flow rate of 10 L per minute (LPM), respectively. The passive type expansion nozzle is adopted due to its simplicity in this research and designed to maintain a constant superheat at the outlet of the evaporator. By tactfully stacking all components, the meso-scale vapor compression refrigeration system is successfully constructed, whose overall size is 60 × 60 × 100 mm3 (width × length × height). Through extensive experiments, it is validated that the proposed mVCRS can keep the temperature of heat source around 46°C with the maximum cooling capacity of 80 W, and that the average coefficient of performance (COP) is up to 2.15.

Details

  • Original title: Development of a novel meso-scale vapor compression refrigeration system (mVCRS).
  • Record ID : 30011615
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 66 - n. 1-2
  • Publication date: 2014/05
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2014.02.037

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