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Feasibility of a new design of a Parabolic Trough Solar Thermal Cooker (PSTC)

  • In this article, we describe the structure, the functioning, and the tests of parabolic trough solar thermal cooker (PSTC). This oven is designed to meet the needs of rural residents, including Urban, which requires stable cooking temperatures above 200 °C. The cooking by this cooker is based on the concentration of the sun's rays on a glass vacuum tube and heating of the oil circulate in a big tube, located inside the glass tube. Through two small tubes, associated with large tube, the heated oil, rise and heats the pot of cooking pot containing the food to be cooked (capacity of 5 kg). This cooker is designed in Germany and extensively tested in Morocco for use by the inhabitants who use wood from forests. During a sunny day, having a maximum solar radiation around 720 W/m2 and temperature ambient around 26 °C, maximum temperatures recorded of the small tube, the large tube and the center of the pot are respectively: 370 °C, 270 °C and 260 °C. The cooking process with food at high (fries, ..), we show that the cooking oil temperature rises to 200 °C, after 1 h of heating, the cooking is done at a temperature of 120 °C for 20 min. These temperatures are practically stable following variations and decreases in the intensity of irradiance during the day. The comparison of these results with those of the literature shows an improvement of 30–50 % on the maximum value of the temperature with a heat storage that could reach 60 min of autonomy. All the results obtained show the good functioning of the PSTC and the feasibility of cooking food at high temperature (>200 °C).

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Metadaten
Author:Noureddine El Moussaoui, Sofian Talbi, Ilyas Atmane, Khalil Kassmi, Klemens Schwarzer, Hamid Chayeb, Najib Bachiri
DOI:https://doi.org/10.1016/j.solener.2020.03.079
ISSN:0038-092X
Parent Title (English):Solar Energy
Publisher:Elsevier
Place of publication:Amsterdam
Document Type:Article
Language:English
Year of Completion:2020
Date of the Publication (Server):2020/08/27
Volume:201
Issue:Vol. 201 (May 2020)
Length:5
First Page:866
Last Page:871
Link:https://doi.org/10.1016/j.solener.2020.03.079
Zugriffsart:bezahl
Institutes:FH Aachen / Fachbereich Chemie und Biotechnologie
FH Aachen / Institut fuer Angewandte Polymerchemie
FH Aachen / Solar-Institut Jülich
collections:Verlag / Elsevier