管壳式换热器换热特性的实验研究

Q2 Engineering

Energy Harvesting and Systems Pub Date : 2023-06-23 DOI:10.1515/ehs-2022-0147

R. Gugulothu, N. Sanke

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引用次数: 3

摘要

摘要本文对22 %切段折流板换热器(SB)、20°、30°和40°螺旋折流板壳管换热器(STHX)进行了数值研究，估算了总换热系数(OHTC)、压降(PD)和摩擦系数。在所研究的换热器(HE)中，40°螺旋挡板STHX的OHTC最高，压降最小。因此，对40°螺旋挡板STHX进行了进一步的实验研究。与22 %的切段式折流板相比，20°折流板的OHTC增加了2.65 %，30°折流板的OHTC增加了5.37 %，40°折流板的OHTC增加了9.78 %。实验与数值OHTC的偏差为2.64 % 40°螺旋挡板。

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Experimental investigation of heat transfer characteristics for a shell and tube heat exchanger

Abstract In the present work, numerical investigations are conducted with 22 % cut segmental baffle heat exchanger (SB), 20°, 30°, and 40° helical baffles shell and tube heat exchangers (STHX) to estimate the overall heat transfer coefficient (OHTC), pressure drop (PD) and friction factor. Among the studied heat exchangers (HE), 40° helical baffles STHX provided the highest OHTC with minimum pressure drop. Hence, further investigations are conducted experimentally with 40° helical baffles STHX. OHTC increased by 2.65 % for 20° helical baffles, 5.37 % for 30° helical baffles, 9.78 % for 40° helical baffles when compared with 22 % cut segmental baffle heat exchanger. The deviation between experimental and numerical OHTC is 2.64 % 40° helical baffles.

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来源期刊

Energy Harvesting and Systems Energy-Energy Engineering and Power Technology

CiteScore

2.00

自引率

0.00%

发文量