[1]杨春元,朱天宇,蔡一凡.DSG槽式太阳能腔体式集热管分层流区的热性能研究[J].机械与电子,2015,(08):26-29.
 YANG Chunyuan,ZHU Tianyu,CAI Yifan.Thermal Performance Study of DSG Parabolic Trough Solar Collectors With Cavity Absorber During Stratified Flow[J].Machinery & Electronics,2015,(08):26-29.
点击复制

DSG槽式太阳能腔体式集热管分层流区的热性能研究
分享到:

《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2015年08期
页码:
26-29
栏目:
设计与研究
出版日期:
2015-08-26

文章信息/Info

Title:
Thermal Performance Study of DSG Parabolic Trough Solar Collectors With Cavity Absorber During Stratified Flow
文章编号:
1001-2257(2015)08-0026-04
作者:
杨春元1朱天宇12蔡一凡1
(1.河海大学机电工程学院,江苏 常州 213022; 2.南通河海大学海洋与近海工程研究院,江苏 南通 226019)
Author(s):
YANG Chunyuan1 ZHU Tianyu12 CAI Yifan1
(1. College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, China; 2.Nantong Ocean Research and Offshore Engineering Institute of Hohai University, Nantong 226019,China)
关键词:
槽式太阳能 DSG 腔体式集热管 分层流
Keywords:
parabolic trough solar collectors DSG cavity collector stratified flow
分类号:
TK513.3
文献标志码:
A
摘要:
针对一种椭圆形腔体式集热管和真空集热管,通过数值模拟的方法,对该集热管在分层流区域的换热系数和温度梯度进行分析研究。结果表明该腔体式集热管能够提高分层流区域的换热系数,但是集热管壁面的温度梯度并没有得到有效的降低,结构有待进一步改进。
Abstract:
Using a numerical simulation of a nelliptical cavity absorber and vacuum absorber, heat transfer coefficient and thermal gradient of the stratified flow areas of both absorbers are analyzed. The results show an increase of heat transfer coefficient in the cavity absorber, but the structure still needs to be improved, because the thermal gradient remains high.

参考文献/References:

[1] Flores V, Almanza R. Behavior of the compound wall copper-steel receiver with stratified two-phase flow regimen in transient states when solar irradiance is arriving on one side of receiver [J]. Solar Energy, 2004, 76(1): 195-198.
[2] Almanza R, Lentz A, Jimenez G. Receiver behavior in direct steam generation with parabolic troughs [J]. Solar Energy, 1998, 61(4): 275-278.
[3] Almanza R, Flores V, Lentz A, et al. Compound wall receiver for DSG in parabolic troughs[C]//Proceedings of the 10th International Symposium of Solar Thermal: SolarPACES, Sydney, Australia. 2000: 131-135.
[4] 王磊, 朱天宇, 刘庆君, 等. 太阳能腔体式(黑体)集热管设计与优化[J]. 机械与电子, 2014(7): 15-18.
[5] Ghorai S, Nigam K D P. CFD modeling of flow profiles and interfacial phenomena in two-phase flow in pipes [J]. Chemical Engineering and Processing: Process Intensification, 2006, 45(1): 55-65.
[6] De Schepper S C K, Heynderickx G J, Marin G B. Modeling the evaporation of a hydrocarbon feedstock in the convection section of a steam cracker [J]. Computers & Chemical Engineering, 2009, 33(1): 122-132.
[7] de Sampaio P A B, Faccini J L H, Su J. Modelling of stratified gas-liquid two-phase flow in horizontal circular pipes[J]. International Journal of Heat and Mass Transfer, 2008, 51(11): 2752-2761.
[8] 李书磊, 蔡伟华, 李凤臣. 水平管内汽液两相流流型及换热特性数值模拟[J]. 哈尔滨工业大学学报, 2014, 46(008): 57-64.
[9] Yang Z, Peng X F, Ye P. Numerical and experimental investigation of two phase flow during boiling in a coiled tube [J]. International Journal of Heat and Mass Transfer, 2008, 51(5): 1003-1016.
[10] Rojas M E, de Andrés M C, González L. Designing capillary systems to enhance heat transfer in LS3 parabolic trough collectors for direct steam generation(DSG)[J]. Solar energy, 2008, 82(1): 53-60.
[11] Yin S, Zhang J, Tong L, et al. Experimental study on flow patterns for water boiling in horizontal heated tubes [J]. Chemical Engineering Science, 2013, 102: 577-584.
[12] Roldán M I, Valenzuela L, Zarza E. Thermal analysis of solar receiver pipes with superheated steam[J]. Applied Energy, 2013(103): 73-84.
[13] 韦彪, 朱天宇. DSG 太阳能槽式集热器聚光特性模拟[J]. 动力工程学报, 2011, 31(10): 773-778.
[14] Gungor K E, Winterton R H S. Simplified general correlation for saturated flow boiling and comparisons of correlations with data[J]. Chemical engineering research & design, 1987, 65(2): 148-156.

备注/Memo

备注/Memo:
收稿日期:2015-04-09
基金项目:江苏省科技支撑计划(工业)项目(BE2013070)
作者简介:杨春元(1989-),男,安徽六安人,硕士研究生,研究方向为太阳能热发电技术。
更新日期/Last Update: 2015-08-26