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多云气象条件下熔融盐腔式吸热器的热性能分析

DOI: 10.13334/j.0258-8013.pcsee.2014.08.011, PP. 1291-1296

Keywords: 熔融盐,腔式,吸热器,热性能,多云

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Abstract:

利用室内熔融盐腔式吸热器的实验平台研究了频繁云遮对熔融盐腔式吸热器热性能的影响。分析了在辐照剧烈变化时,吸热器的出口温度响应情况以及多云天气持续的时间对吸热器平均热效率的影响,实验台采用国内自主研制的新型熔融盐。实验发现,相比于剧烈变化的输入功率,熔融盐吸热器的出口温度变化较为平缓。从管板温度变化情况可以看出,吸热器壁面温度随时间的变化率与壁面温度成正比。另外,分析了多云气象条件下储热罐中熔融盐体积与盐罐中流体平均温度的关系,储热罐中熔融盐体积越大,吸热器出口温度的波动对盐罐内熔融盐温度的影响就越小,但是当储热罐中熔融盐体积大于一定值时,这种效果越来越不明显。

References

[1]  Litwin R Z,Rogers R D.Fabrication and installation of the solar two central receiver[J].Solar Engineering,1996:125-32.
[2]  Renewable Energy Focus.King of Spain opens Gemasolar plant. Focus[J].Renewable Energy,2011,12(5):6.
[3]  Siebers D L,Kraabel J S.Estimating convective energy losses from solar central receivers[R].New Mexico and Livermore,California:Sandia National Laboratories,1984.
[4]  Skocypec R D,Romero V.Thermal modeling of solar central receiver cavities[J].Journal of Solar Energy Engineering,1989,111(2):117-123.
[5]  Hogan R E,Diver R B,Stine Wm B.Comparison of a cavity solar receiver numerical model and experimental data[J].Journal of Solar Energy Engineering,1990,112(3):183-90.
[6]  McDonald C G.Heat loss from an open cavity [R]. New Mexico and Livermore,California:Sandia National Laboratories,1995.此处著录报告所有权单位地址、名称
[7]  Li X,Kong W Q,Wang Z F,et al.Thermal model and thermodynamic performance of molten salt cavity receiver [J].Renewable Energy,2010,35(5):981-988.
[8]  常春,张强强,李鑫.周向非均匀热流边界条件下太阳能高温吸热管内湍流传热特性研究[J].中国电机工程学报,2012,32(17):104-109.Chang Chun,Zhang Qiangqiang,Li Xin.Turbulent heat transfer characteristics in solar thermal absorber tubes with circumferentially non-uniform heat flux boundary condition[J].Proceedings of the CSEE,2012,32(17):104-109(in Chinese).
[9]  王建楠,李鑫,常春.太阳能塔式热发电站熔融盐吸热器过热故障的影响因素分析[J].中国电机工程学报,2010,29(30):107-114.Wang Jiannan,Li Xin,Chang Chun.Analysis of the influence factors on the overheat of molten salt receiver in solar tower power plant[J].Proceedings of the CSEE,2010,29(30):107-114(in Chinese).
[10]  刘斌,吴玉庭,马重芳,等.圆管内熔融盐强迫对流换热的实验研究[J].工程热物理学报,2010,31(10):1739-1742.Liu Bin,Wu Yutging,Ma Chongfang,et al.Experimental study for forced convective heat transfer with molten salts in a circular tube[J].Journal of Engineering Thermophysics,2010,31(10):1739-1742(in Chinese).
[11]  Wu Y T,Ren N,Ma C F,et al.Experimental study on thermal performance of mixed nitrate and carbonate salts[C]//14th International Heat Transfer Conference,Washington,2010.
[12]  Chen C,Wu Y T,Wang S T,et al.Experimental investigation on enhanced heat transfer in transversally corrugated tube with molten salt[J].Experimental Thermal and Fluid Science,2013(47):108-116.
[13]  叶猛,刘斌,吴玉庭,等.熔融盐(LiNO3)强制对流换热实验[J].工程热物理学报,2008,29(9):1585-1587.Ye Meng,Liu Bin,Wu Yuging,et al.An experimental investigation of heat transfer during forced convection in molte salt (LiNO3)[J].Journal of Engineering Thermophysics,2008,29(9):1585-1587(in Chinese).
[14]  Petukhov B S.Heat transfer and friction in turbulent pipe flow with variable physical properties[J].Advances in Heat Transfer,1970(6):503-564.
[15]  Gnielinski V.New equations for heat and mass transfer in turbulent pipe flow and channel flow[J].International Chemical Engineering,1976,6(2):359-368.
[16]  杨小平,杨晓西,丁静,等.高温熔盐吸热器的传热研究和系统设计[J].节能技术,2012,30(1):3-6.Yang Xiaoping,Yang Xiaoxi,Ding Jing,et al.The study on the heat transfer of the molten salt receiver and system design [J].Energy Conservation Technology,2012,30(1):3-6(in Chinese).
[17]  Yang X P,Yang X X,Ding J,et al.Numerical simulation study on the heat transfer characteristics of the tube receiver of the solar thermal power tower[J].Applied Energy,2012,90(1):142-147.
[18]  Yang M L,Yang X X,Yang X P,et al.Heat transfer enhancement and performance of the molten salt receiver of a solar power tower[J].Applied Energy,2010,87(9):2808-2811.
[19]  沈向阳,张奇淄,陆建峰,等.熔盐吸热管非稳态对流换热特性[J].化工学报,2012,63(S1):36-40.Shen Xiangyang,Zhang Qizi,Lu Jianfeng,et al.Unsteady convective heat transfer performances of molten salt in receiver tube[J].CIESC Journal,2012,63(S1):36-40(in Chinese).
[20]  Fang J B,Wei J J,Dong X W,et al.Thermal performance simulation of a solar cavity receiver under windy conditions[J].Solar Energy,2011(85):126-138.
[21]  Wu Y T,Chen C,Liu B,et al.Investigation on forced convective heat transfer of molten salts in circular tubes[J].International Communication in Heat and Mass Transfer,2012,39(10):1550-1555.

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