کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4911419 | 1428368 | 2017 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical investigations on the effects of envelope thermal loads on energy utilization potential and thermal non-uniformity in sleeping environments
ترجمه فارسی عنوان
بررسی عددی اثر بارهای حرارتی پاکتی بر پتانسیل مصرف انرژی و عدم تناسب حرارتی در محیط خواب
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Due to the variation of outdoor environment, the building envelope thermal load undergoes obviously corresponding variation. Therefore, it's previously reported that building envelope had a deep effect on the indoor thermal environment at daytime and nighttime. In subtropics, the higher energy consumption of air conditioning system makes it necessary to study the task/ambient air conditioning system, not only in commercial buildings, but also in residential buildings. At the same time, the effects of the envelope thermal load on these task/ambient air conditioning systems should also be investigated. In this study, a bedroom with a task air conditioning (TAC) system was established and the influences of the building envelope thermal load on indoor thermal comfort level and the energy utilization potential of the TAC system were numerically investigated. Firstly, EUC (energy utilization coefficient) was used to evaluate the energy utilization potential. The EUC values were found growing from 1.0 to around 1.2 with an obvious increase, indicating higher energy utilization potential. Secondly, PMV was used to evaluate the thermal comfort. It was found that the PMV values were increased with a growth rate of 0.051 per W/m2 at ts of 20 °C, 0.036 per W/m2 at ts of 23 °C, and 0.027 per W/m2 at ts of 26 °C. Thirdly, the air temperature non-uniformity in three directions was evaluated. It was found that the increase in envelope thermal load enhanced the air temperature non-uniformity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Building and Environment - Volume 124, 1 November 2017, Pages 232-244
Journal: Building and Environment - Volume 124, 1 November 2017, Pages 232-244
نویسندگان
Ning Mao, Mengjie Song, Dongmei Pan, Zhao Li, Shiming Deng,