1. A naturally ventilated cavity roof as potential benefits for improving thermal environment and cooling load of a factory building
- Author
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Susanti, L., Homma, H., and Matsumoto, H.
- Subjects
- *
COOLING loads (Mechanical engineering) , *FACTORIES , *VENTILATION , *COMPUTER software , *CLIMATE change , *ENERGY consumption , *ENERGY conservation , *COOLING - Abstract
Abstract: The impact of natural ventilation of a roof cavity on improvement of the thermal environment and reduction of cooling load of a factory building is discussed. A computer program was developed with the logic in a companion paper to observe the effect of cavity ventilation on the operative temperature of the occupied zone in the factory. Comparisons were made between factories with a cavity roof and a single roof in the Japanese climate. Results showed that the cavity roof was superior to the single roof in lowering the operative temperature by about 4.4°C. When the factory was air conditioned, the cooling load reduction reached approximately 50% during the summer to maintain an operative temperature of 26°C. Results showed that a naturally ventilated cavity roof has excellent potential for improving the indoor thermal environment and energy savings of factory buildings without complicated cooling installations and life time power consumption. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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