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contributor authorJon T. Van Lew
contributor authorJake Stephens
contributor authorPeiwen Li
contributor authorCho Lik Chan
contributor authorWafaa Karaki
date accessioned2017-05-09T00:46:51Z
date available2017-05-09T00:46:51Z
date copyrightMay, 2011
date issued2011
identifier issn0199-6231
identifier otherJSEEDO-28440#021003_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/147576
description abstractThermal storage has been considered as an important measure to extend the operation of a concentrated solar power plant by providing more electricity and meeting the peak demand of power in the time period from dusk to late night everyday, or even providing power on cloudy days. Discussed in this paper is thermal energy storage in a thermocline tank having a solid filler material. To provide more knowledge for designing and operating of such a thermocline storage system, this paper firstly presents the application of method of characteristics for numerically predicting the heat charging and discharging process in a packed bed thermocline storage tank. Nondimensional analysis of governing equations and numerical solution schemes using the method of characteristics were presented. The numerical method proved to be very efficient, accurate; required minimal computations; and proved versatile in simulating various operational conditions for which analytical methods cannot always provide solutions. Available analytical solutions under simple boundary and initial conditions were used to validate the numerical modeling and computation. A validation of the modeling by comparing the simulation results to experimental test data from literature also confirmed the effectiveness of the model and the related numerical solution method. Finally, design procedures using the numerical modeling tool were discussed and other issues related to operation of a thermocline storage system were also studied.
publisherThe American Society of Mechanical Engineers (ASME)
titleAnalysis of Heat Storage and Delivery of a Thermocline Tank Having Solid Filler Material
typeJournal Paper
journal volume133
journal issue2
journal titleJournal of Solar Energy Engineering
identifier doi10.1115/1.4003685
journal fristpage21003
identifier eissn1528-8986
keywordsFluids
keywordsHeat storage
keywordsEnergy budget (Physics)
keywordsFillers (Materials)
keywordsEquations
keywordsRocks
keywordsHeat
keywordsTemperature
keywordsStorage tanks
keywordsThermal energy storage AND Heat transfer
treeJournal of Solar Energy Engineering:;2011:;volume( 133 ):;issue: 002
contenttypeFulltext


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