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Experimental and Numerical Study of the Radiant Induction-Unit and the Induction Radiant Air-Conditioning System

Author

Listed:
  • Qiang Si

    (Department of Refrigeration and Built Environment, School of Energy and Environment, Southeast University, Nanjing 210009, China)

  • Xiaosong Zhang

    (Department of Refrigeration and Built Environment, School of Energy and Environment, Southeast University, Nanjing 210009, China)

Abstract

In this paper we proposed the novel air-conditioning system which combined induction ventilation and radiant air-conditioning. The indoor terminal device is the radiant induction-unit (RIDU). The RIDU is the induction unit combined with the pore radiant panel on which the copper pipes with rigid aluminum diffusion fins are installed. The two-stage evaporator chiller with the non-azeotropic mixture refrigerant is utilized in the system to reduce the initial investment in equipment. With the performance test and the steady state heat transfer model based on the theory of radiative heat transfer, the relationship between the induction ratio of the RIDU and the characteristic of the air supply was studied. Based on this, it is verified that the RIDU has a lower dew-point temperature and better anti-condensation performance than a traditional plate-type radiant panel. The characteristics of the radiation and convection heat transfer of the RIDU were studied. The total heat exchange of the RIDU can be 16.5% greater than that of the traditional plate-type radiant terminal.

Suggested Citation

  • Qiang Si & Xiaosong Zhang, 2016. "Experimental and Numerical Study of the Radiant Induction-Unit and the Induction Radiant Air-Conditioning System," Energies, MDPI, vol. 10(1), pages 1-14, December.
    • Handle: RePEc:gam:jeners:v:10:y:2016:i:1:p:26-:d:86250
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    References listed on IDEAS

    as
    1. Chen, Can & Cai, Wenjian & Giridharan, Karunagaran & Wang, Youyi, 2014. "A hybrid dynamic modeling of active chilled beam terminal unit," Applied Energy, Elsevier, vol. 128(C), pages 133-143.
    2. Yang, C.M. & Chen, C.C. & Chen, S.L., 2013. "Energy-efficient air conditioning system with combination of radiant cooling and periodic total heat exchanger," Energy, Elsevier, vol. 59(C), pages 467-477.
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