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Desiccant air-conditioning and personal environment control in advanced office building. 2.

Number: pap. n. 306

Author(s) : WADA K., HIDARI K., TAKAHASHI M., et al.

Summary

This paper is an evaluation of the dehumidification capacity of an ordinary temperature regeneration type desiccant air-conditioning system, which uses indoor exhaust air at ordinary temperature as a heat source for the regeneration of desiccants. The evaluation was conducted in an advanced skyscraper multi-tenant office building to which this system was introduced. Various environmentally-friendly technologies were introduced to this office building and one such technology is latent/sensible heat separated air-conditioning technology that utilizes an ordinary temperature regeneration type desiccant air-conditioning system. In Japan, the practice of saving energy by setting air conditioning systems to higher temperatures than normal in the summer is being promoted and there are demands for air-conditioning systems that can maintain comfort levels even in such situations. We evaluated the dehumidification capacity of the ordinary temperature regeneration type desiccant air-conditioning system before offices were put into service. The result indicated that the amount of moisture removed by a desiccant rotor was 2.5 g/kg (DA) at a room temperature of 28°C and humidity of 40%RH. This result satisfies the design target value of this system, indicating that it has sufficient capacity for dehumidifying offices. We also evaluated the treatment load for creating an environment at a slightly higher room temperature and lower humidity. The results indicated that this system can be more effective for energy saving than conventional cooling dehumidifier systems.

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Pages: 9 p.

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Details

  • Original title: Desiccant air-conditioning and personal environment control in advanced office building. 2.
  • Record ID : 30008897
  • Languages: English
  • Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Publication date: 2013/06/16

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