

НЕАТ TRANSFER FROM TUBE BANKS OF SUBSEA COOLERS
Ivanov N.G., Ris V.V., Shchur N.A.
Saint Petersburg State Polytechnical University (National Research University), St.Peterburg, Russia
Citation:
Ivanov, N.G., Ris, V.V. and Shchur, N.A., (2013) Неат transfer from tube banks of subsea coolers, Modern Science: Researches, Ideas, Results, Technologies, Iss. #1(12), PP. 382  388.

Keywords: tube bank; subsea cooler; free convection; heat transfer; numerical modeling 
Abstracts:
Direct numerical simulation of buoyancyinduced 3D turbulent ﬂow of sea water through sparse tube banks has been performed. Ejection of water through side borders induced by water side ﬂow due to draft effect was examined numerically. The inﬂuence of the length of the tubebank pipe straight sections on the water ejection has been investigated. It was shown that signiﬁ cant extension of the straight section up to 130 diameters does not reduce the ejection: the water ﬂow through side boundaries is intensive either for short or for long straight sections of the pipe. On the whole, the signiﬁ cant inﬂuence of ejection through side boundaries of tube bank on the integral heat transfer coefﬁcient level is negative and reduces the heat output from the passive buoyancyaffected coolers. 
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