The Impact of Width of the Air Gap Channel on the Mass Flow Rate, Rayleigh Number, and Efficiency of Passive Solar Heating System

The mass flow rate and Rayleigh number has been investigated experimentally on the passive solar using Trombe wall consist of (industrial wax) used as phase change material (PCM). A test rig of a cubicle was made of PVC sandwich panel except the south wall, Trombe wall; covered with a clear glass of...

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Main Authors: Ehsan F. Abbas, Shayma A. Azat
Format: Article
Language:English
Published: Tikrit University 2018-09-01
Series:Tikrit Journal of Engineering Sciences
Subjects:
Online Access:https://tj-es.com/ojs/index.php/tjes/article/view/87
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author Ehsan F. Abbas
Shayma A. Azat
author_facet Ehsan F. Abbas
Shayma A. Azat
author_sort Ehsan F. Abbas
collection DOAJ
description The mass flow rate and Rayleigh number has been investigated experimentally on the passive solar using Trombe wall consist of (industrial wax) used as phase change material (PCM). A test rig of a cubicle was made of PVC sandwich panel except the south wall, Trombe wall; covered with a clear glass of 6 mm thickness. The six experiments were carried out during the winter season in Kirkuk city with six different widths of the air gap channel (10, 15, 20, 25, 30, and 35) cm. The experimental resultts show that the mass flow rate proportional directly to a width of the channel and inversely with Rayleigh number. Moreover, the highest efficiency was obtained at a depth of 30 cm, where it was about 2.45 times the efficiency of 10 cm.
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spelling doaj.art-1bcfab62c703430ea3f209d64995cf7b2023-09-06T02:22:28ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892018-09-01253The Impact of Width of the Air Gap Channel on the Mass Flow Rate, Rayleigh Number, and Efficiency of Passive Solar Heating SystemEhsan F. Abbas0Shayma A. Azat1Technical College Kirkuk,Northern Technical University,Kirkuk,IraqTechnical College Kirkuk,Northern Technical University,Kirkuk,IraqThe mass flow rate and Rayleigh number has been investigated experimentally on the passive solar using Trombe wall consist of (industrial wax) used as phase change material (PCM). A test rig of a cubicle was made of PVC sandwich panel except the south wall, Trombe wall; covered with a clear glass of 6 mm thickness. The six experiments were carried out during the winter season in Kirkuk city with six different widths of the air gap channel (10, 15, 20, 25, 30, and 35) cm. The experimental resultts show that the mass flow rate proportional directly to a width of the channel and inversely with Rayleigh number. Moreover, the highest efficiency was obtained at a depth of 30 cm, where it was about 2.45 times the efficiency of 10 cm. https://tj-es.com/ojs/index.php/tjes/article/view/87Phase change materialTrombe wallmass flow rate
spellingShingle Ehsan F. Abbas
Shayma A. Azat
The Impact of Width of the Air Gap Channel on the Mass Flow Rate, Rayleigh Number, and Efficiency of Passive Solar Heating System
Tikrit Journal of Engineering Sciences
Phase change material
Trombe wall
mass flow rate
title The Impact of Width of the Air Gap Channel on the Mass Flow Rate, Rayleigh Number, and Efficiency of Passive Solar Heating System
title_full The Impact of Width of the Air Gap Channel on the Mass Flow Rate, Rayleigh Number, and Efficiency of Passive Solar Heating System
title_fullStr The Impact of Width of the Air Gap Channel on the Mass Flow Rate, Rayleigh Number, and Efficiency of Passive Solar Heating System
title_full_unstemmed The Impact of Width of the Air Gap Channel on the Mass Flow Rate, Rayleigh Number, and Efficiency of Passive Solar Heating System
title_short The Impact of Width of the Air Gap Channel on the Mass Flow Rate, Rayleigh Number, and Efficiency of Passive Solar Heating System
title_sort impact of width of the air gap channel on the mass flow rate rayleigh number and efficiency of passive solar heating system
topic Phase change material
Trombe wall
mass flow rate
url https://tj-es.com/ojs/index.php/tjes/article/view/87
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