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Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 810-831 doi: 10.1007/s11708-021-0760-1

Abstract: and the comprehensive thermal-hydraulic and material test facilities for LBE (lead bismuth eutectic) coolantPhysical and thermal experiments and software development for LBE coolant were conducted simultaneously

Keywords: LBE (lead bismuth eutectic) coolant reactor     China initiative Accelerator Driven System (CiADS) project    

Liquid metal as energy transportation medium or coolant under harsh environment with temperature below

Yunxia GAO, Lei WANG, Haiyan LI, Jing LIU

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 49-61 doi: 10.1007/s11708-013-0285-3

Abstract: or its alloys could significantly reduce the electronics temperature compared with the conventional coolantFinally, some main factors for optimization of low temperature coolant were summarized.

Keywords: liquid metal     cryogenics     low melting point     thermal management     aircraft     liquid cooling     space exploration    

Analysis of a 1 kW organic Rankine cycle using a scroll expander for engine coolant and exhaust heat

Yiji LU, Anthony Paul ROSKILLY, Long JIANG, Longfei CHEN, Xiaoli YU

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 527-534 doi: 10.1007/s11708-017-0516-0

Abstract: This paper presented the study of engine coolant and exhaust heat recovery using organic Rankine cyclesystem mainly focusing on the utilization of exhaust energy, this work proposed to fully use the engine coolantevaluation results suggest that under the engine rated condition, the solution to fully recover the engine coolant

Keywords: organic Rankine cycle     scroll expander     coolant and exhaust recovery     internal combustion engine    

Oxidation performance of graphite material in reactors

LUO Xiaowei, YU Xinli, YU Suyuan

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 471-474 doi: 10.1007/s11708-008-0074-6

Abstract: graphite oxidation influences the safety and operation of the reactor because of the impurities in the coolant

Keywords: ingress     accident     oxidation     coolant     moderator    

Nanoparticle-enhanced coolants in machining: mechanism, application, and prospects

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11465-023-0769-8

Abstract: Nanoparticle-enhanced coolants (NPECs) are increasingly used in minimum quantity lubrication (MQL) machining as a green lubricant to replace conventional cutting fluids to meet the urgent need for carbon emissions and achieve sustainable manufacturing. However, the thermophysical properties of NPEC during processing remain unclear, making it difficult to provide precise guidance and selection principles for industrial applications. Therefore, this paper reviews the action mechanism, processing properties, and future development directions of NPEC. First, the laws of influence of nano-enhanced phases and base fluids on the processing performance are revealed, and the dispersion stabilization mechanism of NPEC in the preparation process is elaborated. Then, the unique molecular structure and physical properties of NPECs are combined to elucidate their unique mechanisms of heat transfer, penetration, and anti-friction effects. Furthermore, the effect of NPECs is investigated on the basis of their excellent lubricating and cooling properties by comprehensively and quantitatively evaluating the material removal characteristics during machining in turning, milling, and grinding applications. Results showed that turning of Ti‒6Al‒4V with multi-walled carbon nanotube NPECs with a volume fraction of 0.2% resulted in a 34% reduction in tool wear, an average decrease in cutting force of 28%, and a 7% decrease in surface roughness Ra, compared with the conventional flood process. Finally, research gaps and future directions for further applications of NPECs in the industry are presented.

Keywords: nanoparticle-enhanced coolant     minimum quantity lubrication     biolubricant     thermophysical properties    

Steady-state thermal-hydraulic analysis of SCWR assembly

LIU Xiaojing, CHENG Xu

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 475-478 doi: 10.1007/s11708-008-0093-3

Abstract: international forum (GIF), supercritical water-cooled reactor (SCWR), the only reactor with water as coolant

Keywords: cladding temperature     assembly     temperature     coolant     resistance    

An old issue and a new challenge for nuclear reactor safety

F. D’AURIA

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 854-859 doi: 10.1007/s11708-021-0729-0

Abstract: Large break loss of coolant accident (LBLOCA) has been, so far, the orienting scenario within AA and

Keywords: large break loss of coolant accident (LBLOCA)     nuclear reactor safety (NRS)     licensing perspectives     basis    

Dynamic characteristics of molten droplets and hot particles falling in liquid pool

Liangxing LI, Weimin MA, Huixiong LI, Tingkuan CHEN,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 246-251 doi: 10.1007/s11708-009-0077-y

Abstract: dynamic characteristics of molten droplets and hot particles at the very beginning of their fall into coolantEmphasis was placed on the effects of the droplet’s size and temperature, the coolant’s temperatureparticle decreased rapidly but rebounded shortly, at the beginning of droplet/particle falling in the coolantAn increase in either coolant temperature or droplet temperature results in a larger velocity variationThe elevated volatility of a coolant leads to a steeper deceleration in the “J-region” and

Keywords: dynamic characteristics     molten droplets     high-temperature particles     fuel and coolant interactions    

Experimental study of critical flow of water at supercritical pressure

Yuzhou CHEN, Chunsheng YANG, Shuming ZHANG, Minfu ZHAO, Kaiwen DU, Xu CHENG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 175-180 doi: 10.1007/s11708-009-0029-6

Abstract: Experimental studies of the critical flow of water were conducted under steady-state conditions with a nozzle 1.41 mm in diameter and 4.35 mm in length, covering the inlet pressure range of 22.1-26.8 MPa and inlet temperature range of 38-474°C. The parametric trend of the flow rate was investigated, and the experimental data were compared with the predictions of the homogeneous equilibrium model, the Bernoulli correlation, and the models used in the reactor safety analysis code RELAP5/MOD3.3. It is concluded that in the near or beyond pseudo-critical region, thermal-dynamic equilibrium is dominant, and at a lower temperature, choking does not occur. The onset of the choking condition is not predicted reasonably by the RELAP5 code.

Keywords: critical flow     supercritical water-cooled reactor(SCWR)     reactor safety     loss of coolant accident(LOCA)    

Revolutionizing heat transport enhancement with liquid metals: Proposal of a new industry of water-free heat exchangers

Haiyan LI, Jing LIU

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 20-42 doi: 10.1007/s11708-011-0139-9

Abstract: Water is perhaps the most widely adopted working fluid in conventional industrial heat transport engineering. However, it may no longer be the best option today due to the increasing scarcity of water resources. Furthermore, the wide variations in water supply throughout the year and across different geographic regions also makes it harder to easily access. To address this issue, finding new alternatives to replace water-based technologies is imperative. In this paper, the concept of a water-free heat exchanger is proposed and comprehensively analyzed for the first time. The liquid metal with a low melting point is identified as an ideal fluid that can flexibly be used within a wide range of working temperatures. Some liquid metals and their alloys, which have previously received little attention in thermal management areas, are evaluated. With superior thermal conductivity, electromagnetic field drivability, and extremely low power consumption, liquid metal coolants promise many opportunities for revolutionizing modern heat transport processes: serving as heat transport fluid in industries, administrating thermal management in power and energy systems, and innovating enhanced cooling in electronic or optical devices. Furthermore, comparative analyses are conducted to understand the technical barriers encountered by advanced water-based heat transfer strategies and clarify this new frontier in heat-transport study. In addition, the unique merits of liquid metals that could lead to innovative heat exchanger technologies are evaluated comprehensively. A few promising industrial situations, such as heat recovery, chip cooling, thermoelectricity generation, and military applications, where liquid metals could play irreplaceable roles, were outlined. The technical challenges and scientific issues thus raised are summarized. With their evident ability to meet various critical requirements in modern advanced energy and power industries, liquid metal-enabled technologies are expected to usher a new and global era of water-free heat exchangers.

Keywords: heat exchanger     liquid metal     water resource     heat transport enhancement     coolant     thermal management     process    

Estimation of thermodynamic properties of the ternary molten salt system, LiF-NaF-BeF2, by the modified Peng-Robinson equation

ZHANG Dalin, QIU Suizheng, SU Guanghui, JIA Dounan

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 174-180 doi: 10.1007/s11708-007-0022-x

Abstract: the molten salt system like LiF-NaF-BeF2 influence the design and construction of the fuel salt and coolant

Keywords: modified Peng-Robinson     coolant     consistent     MSR     entropy    

Title Author Date Type Operation

Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

Journal Article

Liquid metal as energy transportation medium or coolant under harsh environment with temperature below

Yunxia GAO, Lei WANG, Haiyan LI, Jing LIU

Journal Article

Analysis of a 1 kW organic Rankine cycle using a scroll expander for engine coolant and exhaust heat

Yiji LU, Anthony Paul ROSKILLY, Long JIANG, Longfei CHEN, Xiaoli YU

Journal Article

Oxidation performance of graphite material in reactors

LUO Xiaowei, YU Xinli, YU Suyuan

Journal Article

Nanoparticle-enhanced coolants in machining: mechanism, application, and prospects

Journal Article

Steady-state thermal-hydraulic analysis of SCWR assembly

LIU Xiaojing, CHENG Xu

Journal Article

An old issue and a new challenge for nuclear reactor safety

F. D’AURIA

Journal Article

Dynamic characteristics of molten droplets and hot particles falling in liquid pool

Liangxing LI, Weimin MA, Huixiong LI, Tingkuan CHEN,

Journal Article

Experimental study of critical flow of water at supercritical pressure

Yuzhou CHEN, Chunsheng YANG, Shuming ZHANG, Minfu ZHAO, Kaiwen DU, Xu CHENG

Journal Article

Revolutionizing heat transport enhancement with liquid metals: Proposal of a new industry of water-free heat exchangers

Haiyan LI, Jing LIU

Journal Article

Estimation of thermodynamic properties of the ternary molten salt system, LiF-NaF-BeF2, by the modified Peng-Robinson equation

ZHANG Dalin, QIU Suizheng, SU Guanghui, JIA Dounan

Journal Article