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Numerical solution of unsteady three-dimensional heat transfer during space cooling using ceiling-embedded piping

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  • Antonopoulos, K.A.
  • Tzivanidis, C.

Abstract

A finite-difference procedure is presented for solving unsteady, three-dimensional heat-transfer problems for cooling buildings by the use of cold water flowing within regularly arranged pipes embedded in the ceiling slab. Our procedure is based on solution of the three differential equations for heat conduction within the ceiling slab, convection cooling with water and the indoor energy balance. Inaccuracies in previously used procedures for steady, one- or two-dimensional flows may distort the results considerably.

Suggested Citation

  • Antonopoulos, K.A. & Tzivanidis, C., 1997. "Numerical solution of unsteady three-dimensional heat transfer during space cooling using ceiling-embedded piping," Energy, Elsevier, vol. 22(1), pages 59-67.
    • Handle: RePEc:eee:energy:v:22:y:1997:i:1:p:59-67
    DOI: 10.1016/S0360-5442(96)00079-5
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    Cited by:

    1. Zhang, Dongliang & Cai, Ning & Cui, Xiaobo & Xia, Xueying & Shi, Jianzhong & Huang, Xiaoqing, 2019. "Experimental investigation on model predictive control of radiant floor cooling combined with underfloor ventilation system," Energy, Elsevier, vol. 176(C), pages 23-33.
    2. Chen, Zhaoxin & Li, Jiaxuan & Tang, Guoqiang & Zhang, Jiahao & Zhang, Donghai & Gao, Penghui, 2024. "High-efficiency heating and cooling technology with embedded pipes in buildings and underground structures: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 192(C).
    3. Romaní, Joaquim & Cabeza, Luisa F. & de Gracia, Alvaro, 2018. "Development and experimental validation of a transient 2D numeric model for radiant walls," Renewable Energy, Elsevier, vol. 115(C), pages 859-870.
    4. Antonopoulos, K.A. & Gioti, F. & Tzivanidis, C., 2010. "A transient model for the energy analysis of indoor spaces," Applied Energy, Elsevier, vol. 87(10), pages 3084-3091, October.
    5. Krzaczek, M. & Florczuk, J. & Tejchman, J., 2019. "Improved energy management technique in pipe-embedded wall heating/cooling system in residential buildings," Applied Energy, Elsevier, vol. 254(C).
    6. Tzivanidis, C. & Antonopoulos, K.A. & Gioti, F., 2011. "Numerical simulation of cooling energy consumption in connection with thermostat operation mode and comfort requirements for the Athens buildings," Applied Energy, Elsevier, vol. 88(8), pages 2871-2884, August.

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