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The impact of water flow configuration on crystallisation in LiBr/H 2 O absorption water heater

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  • Kai Wang
  • Omar Abdelaziz
  • Edward A. Vineyard

Abstract

Lithium Bromide (LiBr) strong solution entering the absorber tends to crystallise when the absorber temperature is increased for a fixed evaporating pressure. This is considered the key technical barrier for the development of a LiBr absorption heat pump water heater. There are several approaches to avoid the crystallisation problem, such as chemical crystallisation inhibitors, heat and mass transfer enhancement and thermodynamic cycle modification. This paper investigates and compares two flow configurations of LiBr absorption heat pump water heater to evaluate the allowable operating conditions for each. The simulation results indicated that introducing the process water through the absorber first results in lower absorber temperature and hence less tendency for crystallisation.

Suggested Citation

  • Kai Wang & Omar Abdelaziz & Edward A. Vineyard, 2011. "The impact of water flow configuration on crystallisation in LiBr/H 2 O absorption water heater," International Journal of Energy Technology and Policy, Inderscience Enterprises Ltd, vol. 7(4), pages 393-404.
    • Handle: RePEc:ids:ijetpo:v:7:y:2011:i:4:p:393-404
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    Cited by:

    1. Parham, Kiyan & Khamooshi, Mehrdad & Tematio, Daniel Boris Kenfack & Yari, Mortaza & Atikol, Uğur, 2014. "Absorption heat transformers – A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 34(C), pages 430-452.

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