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A pre-cooling Munters environmental control desiccant cooling cycle in combination with chilled-ceiling panels

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  • Zhang, L.Z
  • Niu, J.L

Abstract

Desiccant cooling is efficient in latent cooling, whereas chilled-ceiling is efficient for sensible cooling. In this paper, a new desiccant cooling system, a pre-cooling Munters environmental control (PMEC) cycle is proposed, which combines with chilled-ceiling panels. The mathematical model of the system is provided and used to predict the system performance under South-east China weather conditions using hour-by-hour calculations. The results indicate that chilled-ceiling combined with desiccant cooling could save up to 40% of primary energy consumption, in comparison with a conventional constant volume all-air system. More interestingly, more than 99% of annual operating hours for desiccant regeneration could be accomplished by low-grade heat of less than 80 °C with the new cycle, while 30% annual operating hours need heat higher than 80 °C with the old MEC cycle.

Suggested Citation

  • Zhang, L.Z & Niu, J.L, 2003. "A pre-cooling Munters environmental control desiccant cooling cycle in combination with chilled-ceiling panels," Energy, Elsevier, vol. 28(3), pages 275-292.
    • Handle: RePEc:eee:energy:v:28:y:2003:i:3:p:275-292
    DOI: 10.1016/S0360-5442(02)00114-7
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    References listed on IDEAS

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    1. Smith, R.R. & Hwang, C.C. & Dougall, R.S., 1994. "Modeling of a solar-assisted desiccant air conditioner for a residential building," Energy, Elsevier, vol. 19(6), pages 679-691.
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    1. Guo, Jinyi & Lin, Simao & Bilbao, Jose I. & White, Stephen D. & Sproul, Alistair B., 2017. "A review of photovoltaic thermal (PV/T) heat utilisation with low temperature desiccant cooling and dehumidification," Renewable and Sustainable Energy Reviews, Elsevier, vol. 67(C), pages 1-14.
    2. Zouaoui, Ahlem & Zili-Ghedira, Leila & Ben Nasrallah, Sassi, 2016. "Open solid desiccant cooling air systems: A review and comparative study," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 889-917.
    3. Singh, Ashutosh & Kumar, Sunil & Dev, Rahul, 2019. "Studies on cocopeat, sawdust and dried cow dung as desiccant for evaporative cooling system," Renewable Energy, Elsevier, vol. 142(C), pages 295-303.
    4. La, D. & Dai, Y.J. & Li, Y. & Wang, R.Z. & Ge, T.S., 2010. "Technical development of rotary desiccant dehumidification and air conditioning: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(1), pages 130-147, January.
    5. Safizadeh, M. Reza & Morgenstern, Alexander & Bongs, Constanze & Henning, Hans-Martin & Luther, Joachim, 2016. "Optimization of a heat assisted air-conditioning system comprising membrane and desiccant technologies for applications in tropical climates," Energy, Elsevier, vol. 101(C), pages 52-64.
    6. Ali Mandegari, M. & Pahlavanzadeh, H., 2009. "Introduction of a new definition for effectiveness of desiccant wheels," Energy, Elsevier, vol. 34(6), pages 797-803.
    7. Daou, K. & Wang, R.Z. & Xia, Z.Z., 2006. "Desiccant cooling air conditioning: a review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 10(2), pages 55-77, April.
    8. Sphaier, L.A. & Nóbrega, C.E.L., 2012. "Parametric analysis of components effectiveness on desiccant cooling system performance," Energy, Elsevier, vol. 38(1), pages 157-166.

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