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Load shifting and storage of cooling energy through ice bank or ice slurry systems: modelling and experimental analysis. Doctoral thesis.

Author(s) : GROZDEK M.

Type of monograph: Doctoral thesis

Summary

Ice based cool thermal energy storage (CTES) systems have attracted much attention during the last few decades. Compared to conventional refrigeration and air-conditioning systems without cool thermal energy storage, implementation of CTES will increase environmental standards and overall efficiency of the energy systems as it contributes to the phase-out of synthetic refrigerants and reduces peak loads in electricity grids. For the application of CTES in refrigeration installations and HVAC systems in industry and building sector, it is necessary to have appropriate design tools in order to sufficiently accurate predict their performance. This doctoral thesis carries out theoretical and experimental investigations of two ice based cool thermal energy storage systems, namely static, indirect, external melt, ice-on-coil, i.e. ice bank system and dynamic, and ice slurry cool thermal energy storage system. In order to investigate advantages and disadvantages of a dynamic, ice slurry system over a static, indirect, external melt, ice-on-coil CTES system and to assess their differences from economical aspects, a theoretical simulation model of an ice slurry CTES have been developed. It was found that the ice slurry based CTES systems posses higher economic and energy saving potential than static type systems. In the best case scenario the total energy consumption of dynamic CTES system was found to be approximately 25% lower than for a static CTES system.

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Pages: 208

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Details

  • Original title: Load shifting and storage of cooling energy through ice bank or ice slurry systems: modelling and experimental analysis. Doctoral thesis.
  • Record ID : 30000673
  • Languages: English
  • Publication: KTH (Royal Institute of Technology) - Sweden
  • Publication date: 2009
  • ISSN: 11020245
  • ISBN: 9789174154344

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