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Improved heat transfer fluids for district cooling.

Author(s) : LORSCH H. G., CHO Y. I., CHOI E.

Summary

A heat transfer fluid with enhanced performance was developed for use in district cooling systems. It consists of a mixture of two phase-change materials and a surfactant, which are added to the distribution loop. By varying the proportion between the phase-change materials tetradecane and hexadecane, the phase-change temperature of the mixture can be adjusted to accommodate the operating temperature of a particular district-cooling system. The addition of 25% phase-change material by weight will increase the volumetric-thermal capacity of the heat-transfer fluid by more than 40%, resulting in significant savings in installed circulating pump size and pumping energy. The accompanying increase in heat-transfer coefficient will reduce the required heat exchanger size by approximately 10 to 20%. The development described is transferable to other applications.

Details

  • Original title: Improved heat transfer fluids for district cooling.
  • Record ID : 1995-0461
  • Languages: English
  • Publication date: 1993/11/01
  • Source: Source: CLIMA 2000, London
    n. 151; 9 p.; 11 fig.; 2 tabl.; 8 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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