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Downward facing heating surface
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Spray cooling is a versatile technology for various cooling applications involving high surface heat fluxes. Experimental facility was built to study heat transfer performance of an upward multi-nozzle array of water sprays impacting a surface of heated plate made of reactor vessel grade steel.
15p
vironald
15-12-2022
9
3
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In this study, the moving particle semi-implicit method-meshless advection using flow-directional local grid method is used to simulate the bubble growth, departure, and sliding on the downward-facing heating surface in pure water and nanofluid (1.0 vol.% Al2O3/H2O) flow boiling processes; additionally, the bubble critical departure angle and sliding characteristics and their influence are also investigated.
10p
minhxaminhyeu5
30-06-2019
14
3
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The surface inclination angles were 0, 45, 90, 135, and 180. Results showed the Onset of Nucleate Boiling (ONB) heat flux increased with increasing heater orientation from 0 to 90, while early ONB occurred when the heater faced downwards (135 and 180). The nucleate boiling was observed to be unstable at low heat flux (1e21% of CHF) and changed into typical boiling when the heat flux was above 21% of CHF.
11p
minhxaminhyeu3
25-06-2019
10
1
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