Author
D. Y. Goswami
Bio: D. Y. Goswami is an academic researcher from University of South Florida. The author has contributed to research in topics: Critical heat flux & Thermal conduction. The author has an hindex of 1, co-authored 1 publications receiving 8 citations.
Papers
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01 Jan 2010
TL;DR: In this paper, the transient behavior of a thermal energy storage system was studied numerically, where the storage system is composed of cylindrical tube containing the phase change material (PCM) surrounded by the heat transfer fluid (HTF) that flows along the axial direction of the tube.
Abstract: The transient behavior of a thermal energy storage system was studied numerically. The storage system is composed of cylindrical tube containing the phase change material (PCM) surrounded by the heat transfer fluid (HTF) that flows along the axial direction of the tube. The melting of PCM was solved using specific heat capacity method. The heat transfer inside the tubes was analyzed by solving the energy equation, which was coupled with the heat conduction equation in the container wall. The velocity profile was obtained by solving the annular flow outside the tubes. The parameters that control the thermal behavior were identified. Several numerical simulations were performed to assess the effects of the Reynolds number on the heat transfer process of the system during the melting of a PCM.Copyright © 2010 by ASME
8 citations
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TL;DR: In this article, a review of thermal energy storage system design methodologies and the factors to be considered at different hierarchical levels for concentrating solar power (CSP) plants is presented.
1,031 citations
TL;DR: In this article, a tree-shaped fin with one and two bifurcations was proposed to enhance the performance of a shell-and-tube LHTES unit.
395 citations
TL;DR: In this article, the authors investigated the effects of the nanoparticle weight concentration and the amount of applied heat flux (Rayleigh number) on the melting characteristics of n-octadecane as phase change material (PCM) dispersed with CuO nanoparticles as thermal conductivity enhancer (TCE) that was contained and heated in a horizontal cylindrical vessel under a constant heat flux.
102 citations
TL;DR: In this article, the authors describe the application of computational fluid-dynamics (CFD) to the design and characterization of a medium scale energy storage unit for district heating systems.
72 citations
TL;DR: In this paper, a point focusing Fresnel lens was used in the experiments to enhance the solar input and a significant rise in the productivity of the still was achieved with the lens.
Abstract: This study presents a theoretical model to simulate the temperatures and productivity of a single-slope, single-basin solar still when an external solar enhancement is used. Experiments were performed in the New Mexico region (32.3199° N, 106.7637° W) to validate the numerical model. A point focusing Fresnel lens was used in the experiments to enhance the solar input. It was found that a significant rise in the productivity of the still was achieved with the Fresnel lens. Parametric study by varying the water depth showed the Fresnel lens was more effective for larger water depths. In addition, the Fresnel lens can aid in improving the overall efficiency of the solar still.
39 citations