Simulation and performance of a solar air collector and a storage system for a drying unit

被引：12

作者：

Ayadi, M. ^{[1
]}

Mabrouk, S. B. ^{[2
]}

Zouari, I. ^{[1
]}

Bellagi, A. ^{[3
]}

机构：

[1] ISET Rades, Dept Mech, Rades 2098, Tunisia

[2] CRTEn, Energy Lab & Thermal Proc, Hammam Life 2050, Tunisia

[3] ENIM, Dept Energy, Monastir 5019, Tunisia

来源：

SOLAR ENERGY | 2014年 / 107卷

关键词：

Design; Solar collector; Storage system; Performance; TEMPERATURE; ABSORBER; DESIGN; HEATER; FLAT;

D O I：

10.1016/j.solener.2014.05.038

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The drying of agricultural products constitutes a particularly voracious field in energy, which encourages us to reflect on the more rational use of the resources available and especially the use of renewable energies like solar energy. The objective of this work, based on a theoretical and experimental study, is to investigate, the performance of two designed components of a drying solar unit (collector and storage system) without drying energy supplement. So, to satisfy a dimensioning already carried out on a macroscopic scale for an energy request well defined: to dry a quantity of a given agricultural products during one day of harvest season, so between September and May, with a heat storage which relays at night. The mathematical formulation of the physical process of each element, based on conventional heat equations, show a certain agreement with the experimental results under fixed conditions of drying. Experimental results show that the efficiency of the solar collector at flow rate of 0.014 kg s(-1) is 30.52% and the difference in temperature created by the storage system is about 10 degrees C with an efficiency more than 60% and 90% respectively during charging and discharging phase. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：292 / 304

页数：13