A method for determining outdoor air humidity ratio in natatorium during transition season based on typical meteorological years
The natatorium's ventilation problem receives much concern because of its large wet load.The outdoor humidity ratio in transition season is the basic design parameter of ventilation calculation,directly affecting the rationality of architectural design.At present,Ventilation-Curve(V-C)method is the most widely used method to determine outdoor humidity ratio in transition season in China.However,due to failure to reflecting hours,the rationality of this value is difficult to assess by employing this approach.This paper presents a new method,Typical Transition Season(TTS)method,for determining outdoor humidity ratio in transition season of natatorium.The TTS method selects the transition season based on the Typical Meteorological Year(TMY)data,and calculates the outdoor humidity ratio with multiple non-guaranteed hours.This can well represent the local perennial climate characteristics and clearly reflect the non-guaranteed hours.In this study,through selecting six typical representative cities in China,the evaluation of the outdoor humidity ratio is achieved through calculating ventilation volume and air changes rate,verifying the rationality of this method.The results show that the ventilation rate,calculated by the humidity ratio obtained from the TTS method,is more suitable for the design re-quirements.
minimum ventilation ratetypical meteorological yeartypical transition season methodnon-guaran-teed hour
NETL
NSTL
万方数据
