Improvement of Thermal Enviromental by Two Air Out in Hot Air Heating

이중 취출구에 의한 온풍난방시의 열환경 개선

  • 장인성 (부경대학교 냉동공조공학과) ;
  • 김종수 (부경대학교 냉동공조공학과)
  • Published : 1997.09.01


The objective of this paper is to improve a discomfort caused by the unequal airflow and vertical temperature difference by buoyancy of the supplied hot air in the conventional hot air heating system. In order to the model experiment we manufactured the hot air heater with two air outlet and a model room. We observed the temperature, velocity and airflow distribution and calculated values of PMV and PPD using mean value of central verticality section's air temperature and velocity. We could improve distribution of vertical temperature and velocity at the central section of the model room owing to correlation of hot air of two air outlet.



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  5. Heating, Ventilating, and Air Conditioning Faye C. McQuiston;Jerald D. Parker
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