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Design, fabrication, and experimental demonstration of a microscale monolithic modular absorption heat pump.

Author(s) : DETERMAN M. D., GARIMELLA S.

Type of article: Article

Summary

The first ever conceptualization, design, fabrication and successful experimental demonstration of a thermally activated microscale absorption heat pump for miniaturized or mobile applications is reported here. Several-fold enhancements in coupled heat and mass transfer possible in microscale passages remove significant hurdles that have hindered the implementation of thermally activated heat pumps. Cooling capacities of 100 W–10 s of kW are possible through minor changes in component geometry. These mass-producible miniaturized systems can be packaged as monolithic full-system packages or as discrete, distributed hydronically coupled components integrated into buildings. A 300 W nominal cooling capacity ammonia–water absorption heat pump with overall dimensions of 200 × 200 × 34 mm and a mass of 7 kg was fabricated and tested over a range of heat sink temperatures from 20 to 35°C with 500–800 W of desorber heat input to yield cooling duties of 136–300 W. [Reprinted with permission from Elsevier. Copyright, 2011].

Details

  • Original title: Design, fabrication, and experimental demonstration of a microscale monolithic modular absorption heat pump.
  • Record ID : 30005293
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 47
  • Publication date: 2012/12/05
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2011.10.043

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