Parametrical study of the influence of the climatic data and the construction properties on the efficiency of a collector/storage solar water heater

Revue des Énergies Renouvelables

L.Kaabi¹  A.Teyeb¹  C.Kerkeni²  L.Dehmani² 

[1] Institut National des Sciences Appliquées et de Technologie, B.P. 676, 1080, Centre Urbain du Nord, Tunis, Tunisie;Laboratoire d’Energétique et des Procédés Thermiques ‘LEPT’, Centre de Recherches et des Technologies de l’Energie, B.P. 95, 2050 Hammam-Lif, Tunisie;

关键词: solar energy;    water heater;    integrated collector storage system;    numerical simulation;    thermal efficiency;    optical efficiency;   

DOI  :  

来源: DOAJ

【 摘 要 】

A study was undertaken on the performance of an integrated collector-storage solar water heater consisting of a cylindrical water storage tank combined with a parabolic reflector, manufactured at the Laboratory of Energetic and thermal Processes (LEPT). The theoretical determination of the heat transfer phenomena which occur in the system was used to elaborate a numerical model, needed for a parametric evaluation of the system. The parametric study identified the parameters which have the higher influence on the system efficiency and allowed us to quantify the contribution of each of them. We can notice that for the climatic data, the cold water input temperature as well as the ambient temperature showed a major effect on the warm water output. For the construction characteristics, the most influencing factors are the transmissivity of the glazing and the painting of the tank.

【 授权许可】

Unknown