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Natural ventilation with heat recovery using heat pipes.

Author(s) : RIFFAT S. B., SHAO L., GAN G.

Summary

Natural ventilation based on passive-stacks are currently designed without incorporating heat recovery leading to wasteful heat loss. Heat recovery is not used because the pressure loss caused by conventional heat exchangers is too large. The paper presents a low pressure-loss heat recovery device for passive stack systems. It was found that the heat recovery effectiveness decreases with increasing stack velocity and heat recovery effectiveness of over 50% has been obtained in the experiments. It was also demonstrated that acceptable pressure losses can be achieved if the stack mean velocity is kept under approximately 1 m/s.

Details

  • Original title: Natural ventilation with heat recovery using heat pipes.
  • Record ID : 2000-2127
  • Languages: English
  • Source: CIBSE National Conference 1997. Proceedings.
  • Publication date: 1997/10/05
  • Document available for consultation in the library of the IIR headquarters only.

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