کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6681687 1428082 2017 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improvement of the summer cooling induced by an earth-to-air heat exchanger integrated in a residential building under hot and arid climate
ترجمه فارسی عنوان
بهبود سرد شدن تابستان بوسیله یک مبدل حرارتی زمین به هوا که در یک ساختمان مسکونی در هوای گرم و خشک وجود دارد
کلمات کلیدی
مبدل حرارتی زمین به هوا، عایق، دیوار چند لایه، خنک کننده منفعل، دمای هوا داخل محفظه، بار خنک کننده،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
This paper aims to investigate the impact of the thermal insulation on the cooling effectiveness of the Earth-to-Air Heat Exchanger systems under hot and arid climate. For that, the dynamic behaviour of two identical buildings submitted to the same exterior solicitations and equipped with an EAHE is presented in detail. To achieve the objective of this study, two transient models are developed; one for modelling the EAHE and the other for describing the thermal behaviour of buildings. The set of differential equations corresponding to different components of the system is solved using the technique of Complex Finite Fourier Transform. The findings indicate that when the insulated building is equipped with an EAHE, the effect of the thermal insulation will be combined with that of EAHE and the resulting effect will be more important, so that the reduction in the indoor air maximal temperature can be greater than 11°C and the reduction rate in the amplitude of the indoor air temperature increases until 91%. In addition, it is found that the thermal performances of the building outer walls represented usually by the decrement factor and the time-lag can be more improved using insulation layers within these components. On the other hand, the investigation conducted on the effect of the building materials showed that in Saharan climate, the light buildings such as those constructed with autoclaved aerated concrete blocks are more performing compared to the heavy buildings in which the outer walls must be judiciously insulated with a material of high thermal resistance. However, it is shown that the insulation with air cavities is an effective and economic solution for the light buildings in hot and arid regions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 208, 15 December 2017, Pages 428-445
نویسندگان
, , ,