Document Details

Document Type : Article In Journal 
Document Title :
Fast thermal cycling of acetanilide and magnesium chloride hexahydrate for indoor solar cooking
Fast thermal cycling of acetanilide and magnesium chloride hexahydrate for indoor solar cooking
 
Subject : Physics 
Document Language : English 
Abstract : Solar cookers are broadly divided into a direct or focusing type, indirect or box-type and advanced solar cookers. The focusing and box-type solar cookers are for outdoor applications. The advanced solar cookers have the advantage of being usable indoors and thus solve one of the problems, which impede the social acceptance of solar cookers. The advanced type solar cookers are employing additional solar units that increase the cost. Therefore, the solar cooker must contain a heat storage medium to store thermal energy for use during off-sunshine hours. The main aim of this study is to investigate the influence of the melting/solidification fast cycling of the commercial grade acetanilide C8H9NO (Tm = 116 °C) and magnesium chloride hexahydrate MgCl2·6H2O (Tm = 116.7 °C) on their thermo-physical properties; such as melting point and latent heat of fusion, to be used as storage media inside solar cookers. Five hundred cycles have been performed. The thermo-physical properties are measured using the differential scanning calorimetric technique. The compatibility of the selected phase change materials (PCMs) with the containing material is also studied via the surface investigation, using the SIM technique, of aluminum and stainless steel samples embedded in the PCM during cycling. It is inferred that acetanilide is a promising PCM for cooking indoors and during law intensity solar radiation periods with good compatibility with aluminum as a containing material. However, MgCl2·6H2O is not stable during its thermal cycling (even with the extra water principle) due to the phase segregation problem; therefore, it is not recommended as a storage material inside solar cookers for cooking indoors. It is also indicated that MgCl2·6H2O is not compatible with either aluminum or stainless steel. © 2009 Elsevier Ltd. All rights reserved. 
ISSN : 01968904 
Journal Name : Energy Conversion and Management 
Volume : 50 
Issue Number : 12 
Publishing Year : 1430 AH
2009 AD 
Article Type : Article 
Added Date : Thursday, November 19, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
السباعي ع عA., El-Sebaii A.ResearcherDoctorate 
سعيد الأميرAl-Amir, Saeed ResearcherDoctorate 
فهد المرزوقيAl-Marzouki, Fahad ResearcherDoctorate 
عادل فيدهFaidah, Adel ResearcherDoctorate 
أحمد سالم الغامديAl-Ghamdi, Ahmed SalemResearcherDoctorate 
صالح الحنيطيAl-Heniti, Saleh ResearcherDoctorate 

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