contributor author | S. Tescari | |
contributor author | N. Mazet | |
contributor author | P. Neveu | |
contributor author | S. Abanades | |
date accessioned | 2017-05-09T00:46:48Z | |
date available | 2017-05-09T00:46:48Z | |
date copyright | August, 2011 | |
date issued | 2011 | |
identifier issn | 0199-6231 | |
identifier other | JSEEDO-28444#031011_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/147558 | |
description abstract | This study focuses on thermochemical cavity-type reactor, with a reactive material directly irradiated by concentrated solar energy. General tendencies of reactor performance are analyzed as a function of the reactor geometry. The objective is to define a simplified model that can be adapted easily to different reactor designs or different operating conditions. For this reason, the chemical reaction is not precisely fixed but rather characterized by a reaction temperature and a useful power consumed by the endothermic reaction, inside the reactive material. In order to increase the efficiency, two new reactor designs are proposed. These designs allow obtaining a nonuniform distribution of the useful power consumed by the reaction with the depth in a circular cylindrical cavity (z-axis). This is done in two ways: by varying the reactive material thickness along the axis or by varying its density at a constant thickness. The results show that these reactor concepts lead to a more uniform temperature distribution along the z-axis and a diminution of the heat losses. Thus, the reactor efficiency can increase significantly. The results of the simplified model can be used as a system predesign. A more accurate CFD model could be used afterward to refine the optimal shape. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Optimization Model for Solar Thermochemical Reactor: Efficiency Increase by a Nonuniform Heat Sink Distribution | |
type | Journal Paper | |
journal volume | 133 | |
journal issue | 3 | |
journal title | Journal of Solar Energy Engineering | |
identifier doi | 10.1115/1.4004271 | |
journal fristpage | 31011 | |
identifier eissn | 1528-8986 | |
keywords | Temperature | |
keywords | Optimization | |
keywords | Solar energy | |
keywords | Cavities | |
keywords | Heat sinks | |
keywords | Shapes | |
keywords | Thickness | |
keywords | Geometry | |
keywords | Heat losses AND Temperature distribution | |
tree | Journal of Solar Energy Engineering:;2011:;volume( 133 ):;issue: 003 | |
contenttype | Fulltext | |