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Numerical study of conduction and radiation heat losses from vacuum annulus in parabolic trough receivers

Dongqiang LEI, Yucong REN, Zhifeng WANG

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1048-1059 doi: 10.1007/s11708-020-0670-7

Abstract: The heat loss of the receiver has an important influence on the thermal efficiency and the operatingIn this paper, conduction and radiation heat losses are analyzed respectively to identify the heat lossA 2-D heat transfer model is established by using the direct simulation Monte Carlo method for rarefiedgas flow and heat transfer within the annulus of the receiver to predict the conduction heat loss causedthe conduction and radiation heat losses are systematically analyzed.

Keywords： parabolic trough receiver     vacuum annulus     rarefied gas     DSMC (direct simulation Monte Carlo)     heat loss    

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Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces

REN Hesheng, LAI Lingjun, CUI Yongzheng

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 374-380 doi: 10.1007/s11708-008-0079-1

Abstract: A single-blow transient testing technique considering the effect of longitudinal heat conduction is suggestedfor determining the average convection heat transfer coefficient of compact heat exchanger surface.outlet fluid temperature variation with similar theoretical curves, the dimensionless longitudinal conductionparameter , the time constant of the inlet fluid temperature , and the number of heat transfer unitstransfer performance of compact heat exchanger surfaces.

Keywords： coefficient     dimensionless longitudinal     longitudinal     temperature     conduction    

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Principle and status of technique of smoothed particle hydrodynamics and heat conduction model

Wang Yuheng,Liu Feng,Song Fengmei

Strategic Study of CAE 2008, Volume 10, Issue 11,   Pages 47-51

Abstract: Otherwise, the SPH model on heat conduction problem has been discussed.

Keywords： SPH     two dimensions nonlinear dynamics     heat conduction model     numerical simulations    

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Bifunctional Asymmetric Fabric with Tailored Thermal Conduction and Radiation for Personal Cooling and Article

Yucan Peng, Hiang Kwee Lee, David S. Wu, Yi Cui

Engineering 2022, Volume 10, Issue 3,   Pages 167-173 doi: 10.1016/j.eng.2021.04.016

Abstract: By improving control over the heat dissipating from the human body, personal thermal management can provideHere, we propose a facile surface modification approach to tailor the thermal conduction and radiationproperties based on commercially available fabric, to realize better management of the whole heat transportasymmetry and surface modification, the BAF demonstrates an effective cooling effect through enhanced heatconduction and radiation in the cooling mode; in the warming mode, heat dissipation along both routes

Keywords： Textiles     Personal thermal management     Bifunctional asymmetric fabric     Heat conduction     Radiative heat    

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An isogeometric numerical study of partially and fully implicit schemes for transient adjoint shape sensitivity analysis

Zhen-Pei WANG, Zhifeng XIE, Leong Hien POH

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 279-293 doi: 10.1007/s11465-019-0575-5

Abstract: scheme is studied numerically for the adjoint shape sensitivity analysis of two benchmark transient heatconduction problems within the framework of isogeometric analysis.

Keywords： isogeometric shape optimization     design-dependent boundary condition     transient heat conduction     implicit    

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Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to

Zhouyu ZHANG, Hao CHEN, Zhenglin HU, Shoubin ZHOU, Lan ZHANG, Jiayan LUO

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 706-733 doi: 10.1007/s11708-022-0833-9

Abstract: of recent advances and limitations of both PR and CR electrolytes, with a special focus on the ion conduction

Keywords： composite solid electrolytes     active filler/framework     ion conduction path     interphase compatibility    

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An invariant descriptor for conjugate forced convection-conduction cooling of 3D protruding heaters in

Thiago ANTONINI ALVES,Paulo H. D. SANTOS,Murilo A. BARBUR

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3,   Pages 263-276 doi: 10.1007/s11465-015-0345-y

Abstract: study as the conjugate influence coefficients (g+) caused by the forced convection-conductionThe conjugate coefficients are invariant with the heat generation rate in the array of heaters when assuming

Keywords： channel flow     conjugate forced convection-conduction cooling     conjugate influence coefficients     discrete    

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Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 414-436 doi: 10.1007/s11708-017-0507-1

Abstract: In this paper, three important aspects for absorption heat pump for waste heat reuse are reviewed.In the first part, different absorption heat pump cycles are classified and introduced.Absorption heat pumps for heat amplification and absorption heat transformer for temperature upgradingIn the third part, the applications of the absorption heat pump and absorption heat transformer for wasteheat reuse in different industries are introduced.

Keywords： absorption     heat pump     heat transformer     waste heat     working pair    

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Effects of radiation and heat source/sink on unsteady MHD boundary layer flow and heat transfer over

Krishnendu Bhattacharyya

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 376-384 doi: 10.1007/s11705-011-1121-0

Abstract: In this paper, an investigation is made to study the effects of radiation and heat source/sink on theunsteady boundary layer flow and heat transfer past a shrinking sheet with suction/injection.The thermal boundary layer thickness decreases with Prandtl number, radiation parameter and heat sinkparameter, but it increases with heat source parameter.heat transfer.

Keywords： MHD boundary layer     unsteady flow     heat transfer     thermal radiation     heat source/sink     shrinking sheet     suction    

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Heat-spreading analysis of a heat sink base embedded with a heat pipe

B. V. BORGMEYER, H. B. MA,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 143-148 doi: 10.1007/s11708-010-0013-1

Abstract: A simplified model predicting the heat transfer performance of a heat sink base with a high thermal conductivityas the base embedded with a typical heat pipe, the entire heat sink can be modeled as a flat plate witha uniform temperature and an effective convection heat transfer coefficient.This simplified model can be used to determine the heat transfer performance of a heat sink embeddedwith a typical heat pipe or vapor chamber.

Keywords： heat pipe     heat sink     microprocessor heat removal    

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Application of entransy dissipation theory in heat convection

Mingtian XU, Jiangfeng GUO, Lin CHENG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 402-405 doi: 10.1007/s11708-009-0055-4

Abstract: work, formulas for calculating the rates of the local thermodynamic entransy dissipation in convective heat

Keywords： entransy dissipation     heat convection     heat exchanger    

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Experimental investigation of liquid metal alloy based mini-channel heat exchanger for high power electronic

Manli LUO, Jing LIU

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 479-486 doi: 10.1007/s11708-013-0277-3

Abstract: for developing efficient techniques for cooling integrated electronic devices with ever increasing heatTo better tackle the high-density heat dissipation difficulty within the limited space, this paper isdedicated to clarify the heat transfer behaviors of the liquid metal flowing in mini-channel exchangersThe simulated heat sources were all cooled down by these three heat dissipation apparatuses and the exchangerconditions due to its much larger heat transfer area.

Keywords： heat exchanger     liquid metal     mini-channel     heat dissipation     heat transfer coefficient    

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Analysis of flow and heat transfer characteristics of porous heat-storage wall in greenhouse

OUYANG Li, LIU Wei

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 406-409 doi: 10.1007/s11708-008-0094-2

Abstract: The flow and heat transfer characteristics of porous heat-storage wall in greenhouse are studied by usingThe results show that the heat exchange between the air and the solid matrix of the porous heat-storageBecause the incidence of solar radiation on the porous heat-storage wall is not uniform, the new composite

Keywords： incidence     thermal conductivity     heat-storage     exchange     composite    

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Major applications of heat pipe and its advances coupled with sorption system: a review

Yang YU, Guoliang AN, Liwei WANG

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 172-184 doi: 10.1007/s11708-019-0610-6

Abstract: Heat pipe utilizes continuous phase change process within a small temperature drop to achieve high thermalIn addition to some typical applications of thermal control and heat recovery, the heat pipe technologycombined with the sorption technology could efficiently improve the heat and mass transfer performancepipe technology for continuous heat transfer.and the advances in heat pipe type sorption system.

Keywords： heat pipe     sorption system     heat transfer     solid sorption heat pipe    

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Characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helical baffles

Tingting DU, Wenjing DU

Frontiers of Engineering Management 2019, Volume 6, Issue 1,   Pages 70-77 doi: 10.1007/s42524-019-0005-8

Abstract:

The characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helicalIn a fully developed section, the distribution of velocity and wall heat transfer coefficient has a similarMoreover, the back flow enhances the local heat transfer and causes the ascent of flow resistance.

Keywords： heat exchanger     overlapped helical baffle     triangular zone     helical flow    

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Title Author Date Type Operation

Numerical study of conduction and radiation heat losses from vacuum annulus in parabolic trough receivers

Dongqiang LEI, Yucong REN, Zhifeng WANG

Journal Article

Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces

REN Hesheng, LAI Lingjun, CUI Yongzheng

Journal Article

Principle and status of technique of smoothed particle hydrodynamics and heat conduction model

Wang Yuheng,Liu Feng,Song Fengmei

Journal Article

Bifunctional Asymmetric Fabric with Tailored Thermal Conduction and Radiation for Personal Cooling and

Yucan Peng, Hiang Kwee Lee, David S. Wu, Yi Cui

Journal Article

An isogeometric numerical study of partially and fully implicit schemes for transient adjoint shape sensitivity analysis

Zhen-Pei WANG, Zhifeng XIE, Leong Hien POH

Journal Article

Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to

Zhouyu ZHANG, Hao CHEN, Zhenglin HU, Shoubin ZHOU, Lan ZHANG, Jiayan LUO

Journal Article

An invariant descriptor for conjugate forced convection-conduction cooling of 3D protruding heaters in

Thiago ANTONINI ALVES,Paulo H. D. SANTOS,Murilo A. BARBUR

Journal Article

Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

Journal Article

Effects of radiation and heat source/sink on unsteady MHD boundary layer flow and heat transfer over

Krishnendu Bhattacharyya

Journal Article

Heat-spreading analysis of a heat sink base embedded with a heat pipe

B. V. BORGMEYER, H. B. MA,

Journal Article

Application of entransy dissipation theory in heat convection

Mingtian XU, Jiangfeng GUO, Lin CHENG,

Journal Article

Experimental investigation of liquid metal alloy based mini-channel heat exchanger for high power electronic

Manli LUO, Jing LIU

Journal Article

Analysis of flow and heat transfer characteristics of porous heat-storage wall in greenhouse

OUYANG Li, LIU Wei

Journal Article

Major applications of heat pipe and its advances coupled with sorption system: a review

Yang YU, Guoliang AN, Liwei WANG

Journal Article

Characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helical baffles

Tingting DU, Wenjing DU

Journal Article