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Covering peak loads with phase change materials in a geothermal and desiccant assisted air conditioning system.

Number: pap. n. 1228

Author(s) : RICHTER F., NIEMANN P., SCHMITZ G.

Summary

In a geothermal and desiccant assisted air conditioning system at Hamburg University of Technology covering thermal peak loads by means of phase change materials (PCM) is investigated. In the consequence of high ambient temperatures the cooling power of the soil can be exceeded and a backup system is necessary. In this study experimental data of a backup system consisting of PCM
encapsulated in plates and placed in a rack is presented. A computer case fan is used to induce a volume flow through the PCM rack. Results show that the PCM rack is able to locally focus cooling operation and as a result improve thermal comfort perception. An air temperature reduction of approximately 0.7 – 0.9 °C at an average cooling power of 26.58 W can be achieved. The COP
accounts for 6.65 with a corresponding electricity consumption of 4 W.

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Pages: 8

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Details

  • Original title: Covering peak loads with phase change materials in a geothermal and desiccant assisted air conditioning system.
  • Record ID : 30026785
  • Languages: English
  • Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
  • Publication date: 2019/08/24
  • DOI: http://dx.doi.org/10.18462/iir.icr.2019.1228

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