نتایج جستجو برای: coolant
تعداد نتایج: 2435 فیلتر نتایج به سال:
Adjusting operating temperature of the engine in the steady state and during warm-up improves fuel consumption and reduces engine emission through higher operating temperatures. Also it can improve thermal comfort by faster cabin heater performance. Thermal fluid analysis by 1-D simulation is an effective tool for studying the control of the entire cooling system and optimization of engine perf...
Safe and reliable operation is still one of the major challenges in the development of the new generation of ITERlike fusion reactors. The deposited plasma energy during major disruptions, edge-localized modes (ELMs) and vertical displacement events (VDEs) causes significant surface erosion, possible structural failure and frequent plasma contamination. While plasma disruptions and ELM will hav...
Studies of the formation of metal-free Population III stars usually focus primarily on the role played by H2 cooling, on account of its large chemical abundance relative to other possible molecular or ionic coolants. However, while H2 is generally the most important coolant at low gas densities, it is not an effective coolant at high gas densities, owing to the low critical density at which it ...
Burns caused by hot coolant from the reservoir of motorfarming tricycles have not been reported previously. We performed retrospective studies of such cases in 126 patients with complete records in rural areas of China. The majority of victims were unmarried (59.5%), young (<40 years, >20, 55.6%), and male (male to female ratio 9:1). The burn accident occurred mostly during the busy seasons of ...
This experimental workanalysis the influence of cutting conditions on surface roughness of EN-8during machining by CNC turning. Analysis of variance (ANOVA) is employed to investigate the influence of cutting speed, feed rate, and depth of cut and coolant type on surface roughness height Ra. The influence of the interaction of cutting speed, feed rate, depth of cut and coolant type on surface r...
ROCOM is a four-loop test facility for the investigation of coolant mixing in the primary circuit of pressurized water reactors. Recently, a new sensor was developed for an improved visualisation and quantification of the coolant mixing in the downcomer. This new sensor spans a dense measuring grid and covers nearly the whole downcomer. In the presented work, special emphasis was given to the c...
Background: The primary coolant is an essential cooling medium used to control heat in a nuclear power plant. During the oxidation process, Nickel may be released in the primary coolant which increases its contamination. The operational problems and high cost of treatment necessitate the research for some newer methods. The aim of this research is investigation of nickel removal from synthetic...
In this study, detailed fluid flow and heat transfer in cooling plates of polymeric membrane fuel cell is studied using computational fluid dynamics (CFD) techniques. The performances of four different coolant flow field designs were compared in terms of the maximum surface temperature, temperature uniformity and pressure drop characteristics. The results indicate that the porous flow field wit...
A new type of immersion cooled module, the BTPFL-C2, was developed for thermal management of future high flux avionics while conforming to the geometrical constraints of existing military modules and avionic enclosures. The BTPFL-C2 houses two circuit boards separated by a flow distribution plate and employs two sleeveless quick connection coolant couplers. The flow distribution plate supplies ...
The 3-D neutronics analysis for the standard ITER divertor cassettes was extended to determine the nuclear parameters at specified locations and address streaming and neutronics issues for the diagnostic cassettes. The nuclear parameters in the attachment keys and coolant pipes for the dome and plasma facing liners of the central diagnostic cassette indicated that the top attachment keys for th...
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