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ساختمان و محیط زیست
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • development of new indices to assess the contribution of moisture sources to indoor humidity and application to optimization design: proposal of cri(h) and a transient simulation for the prediction of indoor humidity

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 592
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     many indoor and outdoor factors (e.g., the presence of occupants, hot-water supply equipment, the use of hygroscopic materials, and ventilation) contribute to indoor humidity. it is important to investigate and understand the contribution of each factor to indoor humidity and to establish an effective method for the design and control of indoor humidity. in this study, indoor humidity was treated as a linear summation of the contribution of various factors, all of which can cause an increase or decrease in indoor humidity. new indices for assessing the contribution of factors to the humidity distribution in a room are proposed as contribution ratios of humidity (cri(h)) 1, 2, and 3 which can be calculated based on computational fluid dynamics (cfd) simulations. furthermore, a transient simulation based on cri(h)1 and the contribution ratio of indoor climate (cri(c)) was developed to predict the indoor humidity distribution. a 100-day transient analysis was performed in a living room in which moisture-buffering materials were used. the simulation results were compared with those from a well-mixed zonal model and a cfd transient analysis to confirm the effectiveness of the approach. the analysis provided the three-dimensional spatial distribution of indoor humidity and temperature with good prediction accuracy. the calculation time was approximately equal to that of the well-mixed zonal model and much faster than that of the cfd transient analysis.

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