Improvement to the Radiant Time Factors under Different Air Volume Based on Experiment

Improvement to the Radiant Time Factors under Different Air Volume Based on Experiment

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The radiant time factors are used to calculate radiant cooling load in the radiant time series method.Based on measurement data of hourly heat gain and cooling load collected within 24 hours, radiant heat gain and radiant cooling load can be calculated by separating ROSEMARY SHAMPOO convection with radiation.Transfer function is obtained and a 24 term radiant time factors can be calculated by transfer function coefficients matrix.By comparing the results with experiment, it shows that the calculation method of radiant time factors is feasible.The first value of radiant time factors decreases as supply air volume decreases and the sum of the first Picnic Basket five factors is more than 0.

75.For the radiant time factors calculated by ASHRAE software, the improvement method can be used to calculate radiant cooling load under different air circulation after correcting the first five factors.