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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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CFD simulation on shell-and-tube heat exchangers with small-angle helical baffles

Minhua ZHANG,Fang MENG,Zhongfeng GENG

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 183-193 doi: 10.1007/s11705-015-1510-x

Abstract: Shell-and-tube heat exchanger with helical baffles is superior to that with segmental baffles in reducingis employed, and the calculated results show that among the three baffle shapes the heat exchangers withAt = 10° and 20°, 1/4 sector helical baffle heat exchangers show the best integrative performance;at = 30°, 1/4 ellipse and 1/4 sector helical baffle heat exchangers perform almost the same.

Keywords： heat transfer     pressure drop     helical baffle     CFD    

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Optimisation for interconnected energy hub system with combined ground source heat pump and borehole

Da HUO, Wei WEI, Simon Le BLOND

Frontiers in Energy 2018, Volume 12, Issue 4,   Pages 529-539 doi: 10.1007/s11708-018-0580-0

Abstract: Ground source heat pumps (GSHP) give zero-carbon emission heating at a residential level.However, as the heat is discharged, the temperature of the ground drops, leading to a poorer efficiencyBorehole inter-seasonal thermal storage coupled with GSHP maintains the efficiency at a high level.combined heating system is incorporated into the interconnected multi-carrier system to support the heatThe borehole finite element (FE) model and an equivalent borehole transfer function are proposed and

Keywords： borehole thermal storage     energy hub     ground source heat pumps (GSHP)     particle swarm optimisation    

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Numerical simulation of underground seasonal cold energy storage for a 10 MW solar thermal power plant in north-western China using TRNSYS

Zulkarnain ABBAS, Yong LI, Ruzhu WANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 328-344 doi: 10.1007/s11708-020-0676-1

Abstract: explore an efficient, cost-effective, and water-saving seasonal cold energy storage technique based on boreholeheat exchangers to cool the condenser water in a 10 MW solar thermal power plant.Using the simulation platform transient system simulation program (TRNSYS), the borehole thermal energy

Keywords： seasonal cold energy storage     borehole heat exchangers     typical meteorological data     TRNSYS     condenser cooling    

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Three-dimensional modeling of borehole data cored from engineering rock mass

HE Manchao, LI Xueyuan, LIU Bin, XU Nengxiong

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 334-339 doi: 10.1007/s11709-007-0044-9

Abstract: thicknesses, is also proposed, including the evaluation rules and the extensive direction for original borehole

Keywords： three-dimensional     discontinuous     primary     extensive direction     engineering    

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Fabrication of high-capacity cation-exchangers for protein adsorption: Comparison of grafting-from and

Ming Zhao, Run Liu, Jian Luo, Yan Sun, Qinghong Shi

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 120-132 doi: 10.1007/s11705-018-1730-y

Abstract: In this work, we have synthesized two polymer-grafted cation exchangers: one via the grafting-from approachProtein adsorption on these two cation exchangers have been also investigated.

Keywords： polymer-grafted ionic exchanger     grafting technique     protein adsorption     atom transfer radical polymerization     γ-globulin    

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New technology of double-pipe protecting borehole wall blasting

Pu Chuanjin,Xiao Zhengxue,Zhang Zhicheng,Hao Yafei

Strategic Study of CAE 2009, Volume 11, Issue 8,   Pages 88-92

Abstract:

Double-pipe protecting borehole wall balsting,a new control blastingand explosion mechanism are detailedly introduced in the paper.The results of experiment on single borehole

Keywords： blasting engineering     double-pipe protecting borehole wall balasting sets     blasting mechanism     dynamic    

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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: dedicated to clarify the heat transfer behaviors of the liquid metal flowing in mini-channel exchangersexchangers with varied geometric sizes.Meanwhile, numerical simulations for the heat exchangers under the same working conditions were alsoThe 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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Augmentation of natural convective heat transfer by acoustic cavitation

Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 313-318 doi: 10.1007/s11708-009-0064-3

Abstract: experimental study was conducted to investigate the effects of acoustic cavitation on natural convective heatThe experimental results indicated that heat transfer could be enhanced by acoustic cavitation and hadThe augmentation at low heat flux was better than that in the case of high heat flux.

Keywords： heat transfer enhancement     augmentation     acoustic cavitation     acoustic streaming     convective heat transfer    

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Title Author Date Type Operation

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

Tingting DU, Wenjing DU

Journal Article

CFD simulation on shell-and-tube heat exchangers with small-angle helical baffles

Minhua ZHANG,Fang MENG,Zhongfeng GENG

Journal Article

Optimisation for interconnected energy hub system with combined ground source heat pump and borehole

Da HUO, Wei WEI, Simon Le BLOND

Journal Article

Numerical simulation of underground seasonal cold energy storage for a 10 MW solar thermal power plant in north-western China using TRNSYS

Zulkarnain ABBAS, Yong LI, Ruzhu WANG

Journal Article

Three-dimensional modeling of borehole data cored from engineering rock mass

HE Manchao, LI Xueyuan, LIU Bin, XU Nengxiong

Journal Article

Fabrication of high-capacity cation-exchangers for protein adsorption: Comparison of grafting-from and

Ming Zhao, Run Liu, Jian Luo, Yan Sun, Qinghong Shi

Journal Article

New technology of double-pipe protecting borehole wall blasting

Pu Chuanjin,Xiao Zhengxue,Zhang Zhicheng,Hao Yafei

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

Augmentation of natural convective heat transfer by acoustic cavitation

Jun CAI, Xiulan HUAI, Shiqiang LIANG, Xunfeng LI,

Journal Article