Book ChapterDOI
Development of a Fluidized Bed Gas Heater Using Solar Heat for Waste Steam Reuse in the Plant
Sung Won Kim,Sae Han Park +1 more
- pp 73-79
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TLDR
In this article, the performance of the directly-irradiated fluidized gas heater with silicone carbide particles has been determined for the application of exhaust steam reuse in the low and medium temperature processes.Abstract:
Due to serious environmental impact from huge amount of energy and water resource consumption in industrial processes, the industries have been looking for new systems based on renewable energy. Performance of the directly-irradiated fluidized gas heater (50 mm-ID × 100 mm high) with silicone carbide particles has been determined for the application of exhaust steam reuse in the low- and medium temperature processes. The minimum fluidization velocity (Umf) of SiC is 0.0054 m/s, where the solar receiver was operated for keeping the fluidization state. The bed temperature shows a maximum value of about 200 °C around 0.013–0.021 m/s of gas velocity. It is considered that a high gas temperature is obtained in the vicinity of the minimum bubbling velocity where small bubbles are formed. The produced heat energy increases up to 18 W with increasing gas velocity. The optimum condition in this study is around 0.050 m/s. The energy efficiency was calculated to be 14%. A possible improvement of the gas heater has been proposed based on the experimental results.read more
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Fluidization engineering, 2nd edition
K. Daizo,O. Levenspiel +1 more
TL;DR: In this article, the authors discuss industrial applications of fluidized beds; the dense bed: distributors, gas jets, and pumping power; Bubbling fluidization beds; and particle movement in beds.
Journal ArticleDOI
A review of high-temperature particle receivers for concentrating solar power
TL;DR: A review of these alternative designs, along with benefits, technical challenges, and costs can be found in this article, with a focus on free-falling, obstructed flow, centrifugal, flow in tubes with or without fluidization, multi-pass recirculation, and face-down configurations.
Journal ArticleDOI
Theoretical and experimental study of radiant heat transfer in a solar fluidized‐bed receiver
TL;DR: In this article, a theoretical model was proposed to describe the complex heat transfer phenomena in the radiation penetration zone of the fluidized layers of the solar fluidized beds, and the results correlated well at incipient fluidizing conditions for beds of silicon carbide and chamotte but were found imprecise for bed of zirconia and silica sand.
Journal ArticleDOI
Status and prospect of solar heat for industrial processes in China
TL;DR: Wang et al. as discussed by the authors summarized the status of China's energy consumption, integration of solar heat for industrial processes, as well as available matching solar technologies, and selected 10 typical industrial sectors to specifically describe their potential of SHIP.
Journal ArticleDOI
Design and performance of a multistage fluidised bed heat exchanger for particle-receiver solar power plants with storage
TL;DR: In this paper, an analytical model of a multistage fluidized bed heat exchanger for particle-based solar power plants is presented, which enables a parametric analysis of the heat exchange performance.