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Energy and exergy analysis of H2O/LiBr absorption heat pumps for combined heating and cooling applications.

Number: 140

Author(s) : PRIETO J., AYOU D. S., CORONAS A.

Summary

The aim of this study is to analyze the feasibility of the single-effect H2O/LiBr absorption cycle for the production of combined heating and cooling. To achieve this, we firstly describe the main changes that the cycle requires in comparison with the conventional single effect absorption chiller. Then, we evaluate the limits of the cycle in terms of temperature lifts and LiBr crystallization, so this information will be useful to set the suitable applications for this cycle. Finally, we study the energy and exergy performance of the cycle. As main results, when the chilled and the heated water temperatures are 10 and 55 ºC respectively, the COPc and the COPH are up to 0.85. This leads to a COPtot of up to 1.65. The ECOP achieved by the heat pump ranges between 0.41 and 0.49.

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Pages: 9

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Details

  • Original title: Energy and exergy analysis of H2O/LiBr absorption heat pumps for combined heating and cooling applications.
  • Record ID : 30030438
  • Languages: English
  • Source: XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2022.
  • Publication date: 2022/04

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