Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Control strategy for economic operation of an ice-storage system considering cooling load variation

냉방부하 변동을 고려한 빙축열시스템의 경제적 운전방식

  • 정성훈 (한국과학기술연구원 열유동제어연구센터) ;
  • 이대영 (한양대학교) ;
  • 강병하 (한국과학기술연구원 열유동제어연구센터) ;
  • 김우승 (한양대학교)
  • Published : 2000.02.01
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Abstract

A comparative analysis was peformed on the operation cost at partial loads between ice storage systems with the two conventional control strategies, i.e., storage priority and chiller priority. The storage priority control is shown to be more economic for small cooling loads, while the chiller priority control is superior when the cooling load is as large as the design value. Based on this finding, a new control strategy is devised for an ice-storage system to minimize the operation cost at any cooling load. The new control strategy is found to be comparable to the chiller priority for large cooling loads, while it is more economic for small loads compared to the conventional control strategies. The practicality of the new control strategy is also confirmed through a performance test applying the new control strategy to an existing ice-storage system.

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References

  1. Air-Conditioning and Refrigeration Engineering v.22 no.2 Ice storage system Jung, C. S.
  2. ASHRAE Trans. v.101 Cost optimal analysis and load shifting potentials of cold storage equipment Kintner-Meyer, M.;Emery, A. F.
  3. ASHRAE Trans. v.101 The control of ice-storage systems Carey, C. W.;Mitchell, J. W.;Beckman, W. A.
  4. Korean Journal of Air-Conditioning and Refrigeration Engineering v.11 no.3 Comparative analysis of the minimum capacity of an ice-on-coil thermal storage system for various operation strategies Lee, D. -Y.;Jung, S. -H.;Kang, B. H.
  5. ASHRAE Trans. Application considerations in optimal control of cool storage Spethmann, D. H.
  6. ASHRAE Trans. v.98 A comparison of chiller-priority, storage-priority, and optimal control of an ice-storage system Braun, J. E.
  7. ASHRAE Trans. v.100 A comparison of energy consumption for storage priority and chiller priority for ice-based thermal storage systems Simmonds, P.
  8. ASHRAE Trans. v.102 Optimizing system control with load prediction by neural networks for an ice-storage system Kawashima, M.;Dorgan, C. E.;Mitchell, J. W.
  9. International Journal of HVAC&R Research v.3 no.3 Development of a predictive optimal controller for thermal energy storage systems Henze, G. P.;Dodier, R. H.;Krarti, M.
  10. Korean Journal of Air-Conditioning and Refrigeration Engineering v.11 no.1 Prediction of practically chargeable cold energy in an ice storage system Lee, D. -Y.;Kang, B. H.;Kim, M. S.