The influence of viscous heating on the entransy in two-fluid heat exchangers 

In the present work, water and olive oil are taken as working fluids to study the influence of viscous heating on the entransy dissipation caused by heat transf...
《Science China(Technological Sciences)》  2011年 第05期 下载次数(104)| 被引次数(12)

Application of high temperature heat pipe in hypersonic vehicles thermal protection 

In order to develop further the application of high temperature heat pipe in hypersonic vehicles thermal protection,the principles and characteristics of high t...
《Journal of Central South University of Technology》  2011年 第04期 下载次数(129)| 被引次数(6)

Experimental Study and Analysis on Heat Transfer Coefficient of Radial Heat Pipe 

The experimental study was performed on five eccentric radial heat pipes with two outer-tube diameters.The test range can be given as follows,working fluid fill...
《Journal of Thermal Science》  2010年 第05期 下载次数(90)| 被引次数(5)

Optimal configuration for a finite high-temperature source heat engine cycle with the complex heat transfer law 

The optimal configuration of a heat engine operating between a finite high-temperature source and an infinite low-temperature reservoir is derived by using fini...
《Science in China(Series G:Physics,Mechanics & Astron…》  2009年 第04期 下载次数(82)| 被引次数(21)

Flow mechanism and heat transfer enhancement in longitudinal-flow tube bundle of shell-and-tube heat exchanger 

The flow disturbance and heat transfer mechanism in the tube bundle of rod baffle shell-and-tube heat exchanger were analyzed, on the basis of which and combine...
《Science in China(Series E:Technological Sciences)》  2009年 第10期 下载次数(944)| 被引次数(22)

Maximum power output of a class of irreversible non-regeneration heat engines with a non-uniform working fluid and linear phenomenological heat transfer law 

Maximum power output of a class of irreversible non-regeneration heat engines with non-uniform working fluid,in which heat transfers between the working fluid a...
《Science in China(Series G:Physics,Mechanics & Astron…》  2009年 第12期 下载次数(34)| 被引次数(12)

Analysis of the effects of the heat of sorption on the process of heat transfer in moisture exchange across a membrane 

A theoretical study has been conducted to investigate the effects of mass transfer on heat transfer in moisture exchange across a membrane and a mathematical mo...
《Science in China(Series E:Technological Sciences)》  2008年 第12期 下载次数(31)| 被引次数(5)

Super-High Heat Flux Removal Using Sintered Metal Porous Media 

Heat transfer experiments using various porous materials are performed to verify the possibility of extremely high heat flux removal (several dozens of MW/m2). ...
《Journal of Thermal Science》  2005年 第03期 下载次数(30)| 被引次数(0)

气候变化背景下高温和臭氧污染对人群健康的影响研究 

政府间气候变化专门委员会(IPCC)在第五次评估报告中指出,气候系统的变暖是毋庸置疑的。《柳叶刀》(TheLancet)期刊的专题报告指出,气候变化已成为21世纪全球最大的健康威胁,而采取应对气候变化的措施则是21世纪改善全人类健康的最大机遇。气候变化可以通过直接(如温度升高)和间接(如空气质量恶化)等途径威胁人群健康...
南京大学  博士论文  2016年 下载次数(114)| 被引次数()

印刷电路板和微管换热器的热工水力特性数值研究 

同传统的管壳式换热器相比,以超临界二氧化碳为工质的紧凑型换热器能够有效提高热力循环效率,降低各部件尺寸,对小型堆的设计有着重要意义。紧凑式换热器主要分为两种类型,分别是印刷式换热器和微通道换热器。为了分析紧凑型换热器的热工水力性能,本文基于超临界二氧化碳工质的热工水力特性,分析了印刷式换热器和微通道换热器的主要优势,设...
华北电力大学(北京)  硕士论文  2018年 下载次数(115)| 被引次数()

T形接头焊接残余应力与变形的有限元研究 

T型焊接接头在船舶及桥梁工业中广泛应用。然而,众所周知焊接接头中的应力集中将会缩短工件的使用寿命,并造成焊接结构的尺寸不稳定性。焊接过程的局部加热以及其后的快速冷却会在T型接头的焊趾处产生拉伸残余应力。另外,焊接过程的热应力所引起的结构变形也会影响焊接结构的抗弯强度。有限元方法提供了一种获得焊接过程中由于热...
哈尔滨工程大学  硕士论文  2010年 下载次数(413)| 被引次数(1)

Effects of heat acclimation pretreatment on changes of membrane lipid peroxidation, antioxidant metabolites, and ultrastructure of chloroplasts in two cool-season turfgrass species under heat stress 

The membrane lipid peroxidation, antioxidant metabolites, as well as ultrastructure of chloroplasts of leaves were investigated in two coolseason turfgrass spec...
2006年中国植物逆境生理生态与分子生物学学术研讨会论文…  2006-07-01 下载次数(11)| 被引次数(0)

Determination and Analysis on Heat of Trapezoidal Soil Wall in Solar Greenhouse 

Solar greenhouse with trapezoidal soil wall is widely used due to its good heat retaining property and cost efficiency.In this study, solar irradiance, heat flu...
《Agricultural Science & Technology》  2017年 第12期 下载次数(8)| 被引次数()

Investigation of internally finned LED heat sinks 

A novel heat sink is proposed, which is composed of a perforated cylinder and internally arranged fins.Numerical studies are performed on the natural convection...
《Journal of Semiconductors》  2018年 第03期 下载次数(72)| 被引次数(1)

Characteristics of Fluid Flow and Heat Transfer in the Shell Side of the Trapezoidal-like Tilted Baffles Heat Exchanger 

Periodic whole cross-section computation models are established for segmental baffle heat exchanger, shutter baffle heat exchanger, and trapezoid-like tilted ba...
《Journal of Thermal Science》  2018年 第06期 下载次数(67)| 被引次数()

共找到相关记录40779条上一页>12345678910下一页