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Modeling of a hydronic ceiling system and its environment as energetic auditing tool

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  • Fonseca Diaz, Néstor

Abstract

As a part of a commissioning study, the chilled ceiling system of a large commercial building located in Belgium is evaluated. A representative office has been instrumented and data on the chilled ceiling system operating in real conditions have been collected. The simulation of the whole system is performed by means of a transient thermal model of the building and its HVAC system. The model considers the hydronic panels as a transient-state finned heat exchanger connected to a simplified lumped transient model of the building. The behavior of the hydronic ceiling system and the interactions with its environment (walls, ventilated facade, internal loads and ventilation system) has been experimentally and numerically evaluated. Commissioning test results show that the influence of surfaces temperatures inside the room, especially the facade, is considerable. Then, it is clear that the hydronic ceiling system must be evaluated together with its designed environment and not as a separate HVAC equipment.

Suggested Citation

  • Fonseca Diaz, Néstor, 2011. "Modeling of a hydronic ceiling system and its environment as energetic auditing tool," Applied Energy, Elsevier, vol. 88(3), pages 636-649, March.
    • Handle: RePEc:eee:appene:v:88:y:2011:i:3:p:636-649
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    References listed on IDEAS

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    1. He, Jiang & Hoyano, Akira & Asawa, Takashi, 2009. "A numerical simulation tool for predicting the impact of outdoor thermal environment on building energy performance," Applied Energy, Elsevier, vol. 86(9), pages 1596-1605, September.
    2. Chowdhury, Ashfaque Ahmed & Rasul, M.G. & Khan, M.M.K., 2008. "Thermal-comfort analysis and simulation for various low-energy cooling-technologies applied to an office building in a subtropical climate," Applied Energy, Elsevier, vol. 85(6), pages 449-462, June.
    3. Gwerder, M. & Lehmann, B. & Tödtli, J. & Dorer, V. & Renggli, F., 2008. "Control of thermally-activated building systems (TABS)," Applied Energy, Elsevier, vol. 85(7), pages 565-581, July.
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    1. Bojić, Milorad & Cvetković, Dragan & Bojić, Ljubiša, 2015. "Decreasing energy use and influence to environment by radiant panel heating using different energy sources," Applied Energy, Elsevier, vol. 138(C), pages 404-413.
    2. Sabina Jordan & Jože Hafner & Tilmann E. Kuhn & Andraž Legat & Martina Zbašnik-Senegačnik, 2015. "Evaluation of Various Retrofitting Concepts of Building Envelope for Offices Equipped with Large Radiant Ceiling Panels by Dynamic Simulations," Sustainability, MDPI, vol. 7(10), pages 1-23, September.
    3. Lim, Jae-Han & Song, Jin-Hee & Song, Seung-Yeong, 2014. "Development of operational guidelines for thermally activated building system according to heating and cooling load characteristics," Applied Energy, Elsevier, vol. 126(C), pages 123-135.
    4. Chen, Qun & Wang, Yi-Fei & Xu, Yun-Chao, 2015. "A thermal resistance-based method for the optimal design of central variable water/air volume chiller systems," Applied Energy, Elsevier, vol. 139(C), pages 119-130.
    5. Ge, Gaoming & Xiao, Fu & Xu, Xinhua, 2011. "Model-based optimal control of a dedicated outdoor air-chilled ceiling system using liquid desiccant and membrane-based total heat recovery," Applied Energy, Elsevier, vol. 88(11), pages 4180-4190.
    6. Luo, Yongqiang & Zhang, Ling & Liu, Zhongbing & Wang, Yingzi & Meng, Fangfang & Xie, Lei, 2016. "Modeling of the surface temperature field of a thermoelectric radiant ceiling panel system," Applied Energy, Elsevier, vol. 162(C), pages 675-686.

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