Performance of a new solar air heater with packed-bed latent storage energy for nocturnal use

被引：130

作者：

Bouadila, Salwa ^{[1
]}

Kooli, Sami ^{[1
]}

Lazaar, Mariem ^{[1
]}

Skouri, Safa ^{[1
]}

Farhat, Abdelhamid ^{[1
]}

机构：

[1] Res & Technol Ctr Energy, Thermal Proc Lab, Tunis 2050, Tunisia

来源：

APPLIED ENERGY | 2013年 / 110卷

关键词：

Latent heat storage; Packed bed solar air heaters; Energy efficiency; Exergy efficiency; PHASE-CHANGE MATERIAL; EXERGY ANALYSIS; COLLECTORS; DESIGN; FLOW; OPTIMIZATION; EFFICIENCY; SYSTEM; WATER; PCMS;

D O I：

10.1016/j.apenergy.2013.04.062

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：

An experimental study was conducted to evaluate the thermal performance of a new solar air heater collector using a packed bed of spherical capsules with a latent heat storage system. Using both first and second law of thermodynamics, the energetic and exegetic daily efficiencies were calculated in Closed/Opened and Opened cycle mode. The solar energy was stored in the packed bed through the diurnal period and extracted at night. The experimentally obtained results are used to analyze the performance of the system, based on temperature distribution in different localization of the collectors. The daily energy efficiency varied between 32% and 45%. While the daily exergy efficiency varied between 13% and 25%. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：267 / 275

页数：9

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