Field synergy theory based convective heat transfer in an enhanced tube with multiple spiral coils
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Field synergy theory based convective heat transfer in an enhanced tube with multiple spiral coils
Thermal Power GenerationVol. 44, Issue 1, Pages: 30-33(2015)
作者机构:
1. 内蒙古科技大学能源与环境学院
2. 内蒙古工业大学能源与动力工程学院
作者简介:
基金信息:
DOI:
CLC:TK124
Published:2015
稿件说明:
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JIN Guang, WANG Zhengwen, TIAN Rui, et al. Field synergy theory based convective heat transfer in an enhanced tube with multiple spiral coils[J]. Thermal power generation, 2015, 44(1): 30-33.
DOI:
JIN Guang, WANG Zhengwen, TIAN Rui, et al. Field synergy theory based convective heat transfer in an enhanced tube with multiple spiral coils[J]. Thermal power generation, 2015, 44(1): 30-33.DOI:
Field synergy theory based convective heat transfer in an enhanced tube with multiple spiral coils
To solve the prominent problem of convective heat transfer enhancement in solar collector tubes
experimental investigation on enhancing heat transfer between tube well and medium by copper inserts with double multiple spiral coils and three multiple spiral coils was conducted
by using field synergy theory.The results show that
the convective field synergy number Fc increases sharply with the synergy angle cosine cosβin the multiple spiral coils tubes.Moreover
the velocity field and temperature field also show a good cooperativity.The working fluid with three spiral coils has the best comprehensive heat transfer performance
under the condition with constant heat flow(240 Key Words: flat-plate solar collector
multiple spiral coils
field synergy
heat transfer enhancement Abstract: Keywords: Foundation: Authors: JIN Guang;WANG Zhengwen;TIAN Rui;YU Ye;