核電站間接空冷系統(tǒng)鋁翅片管束散熱器傳熱特性
發(fā)布時(shí)間:2018-04-05 22:13
本文選題:核電 切入點(diǎn):間接空冷系統(tǒng) 出處:《給水排水》2017年S2期
【摘要】:以間接空冷系統(tǒng)常用鋁管鋁翅片空冷散熱器為對象,針對六排管和四排管典型設(shè)計(jì),在管外空氣側(cè)和管內(nèi)循環(huán)水側(cè)對流換熱系數(shù)關(guān)聯(lián)式的基礎(chǔ)上,推導(dǎo)獲得了空冷散熱器傳熱系數(shù)的變化規(guī)律并進(jìn)行了影響因素分析。結(jié)果表明,空冷散熱器傳熱系數(shù)主要受冷卻空氣流量支配,而非循環(huán)水流量影響,還與翅片管束結(jié)構(gòu)參數(shù)有關(guān)。鋁制翅片管束空冷散熱器傳熱性能的研究,可用于指導(dǎo)空冷散熱器的管束選型和間接空冷系統(tǒng)的優(yōu)化設(shè)計(jì)。
[Abstract]:Taking the aluminum fin air cooling radiator commonly used in the indirect air cooling system as the object, the typical design of six rows of tubes and four rows of tubes is carried out, based on the correlation formula of convection heat transfer coefficient between the air side outside the tube and the circulating water side of the tube.The variation law of heat transfer coefficient of air cooling radiator is derived and the influencing factors are analyzed.The results show that the heat transfer coefficient of the air-cooled radiator is mainly controlled by the cooling air flow rate, not by the circulating water flow rate, but also by the structural parameters of the finned tube bundle.The study on the heat transfer performance of the aluminum finned tube bundle air cooling radiator can be used to guide the selection of the tube bundle of the air cooling radiator and the optimization design of the indirect air cooling system.
【作者單位】: 中國中原對外工程有限公司;中國核電工程有限公司;
【分類號】:TM623.4
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本文編號:1716701
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