QI Chao, WANG Bojie, YI Chongchong, et al. Operation characteristics and optimization of submerged combustion vaporizer[J]. CIESC Journal, 2015, (S2): 198-205.
QI Chao, WANG Bojie, YI Chongchong, et al. Operation characteristics and optimization of submerged combustion vaporizer[J]. CIESC Journal, 2015, (S2): 198-205.DOI: 10.11949/j.issn.0438-1157.20150688.
A heat transfer model of submerged combustion vaporizer(SCV)heat transfer tube was established and the calculation flow was also presented.The accuracy of this model was verified by the analysis of an engineering example.Based on a certain SCV
the curves of LNG temperature and heat transfer coefficient along the tube were calculated and analyzed in rated condition.The influence of LNG flow rate
LNG inlet temperature
LNG inlet pressure and fouling resistance coefficient on the water bath temperature was discussed.Based on the results above
a tube insert was recommended to enhance the heat transfer.When the heat transfer enhancement coefficient is 3.0
the bath water temperature could be decreased by 14.8℃ if the length of heat transfer tube keeps invariant.Meanwhile
the heat transfer area could be reduced by 23% if the bath water temperature keeps invariant.