Results 21 to 30 of about 797,009 (296)

Preliminary Design and Analysis of Regenerative Heat Exchanger

Chemical Engineering Transactions, 2016
Heat regenerators transfer heat from one gas to another, with by storage in solids. This type of heat exchanger is used primarily when heat has to be transferred between enormous amounts of gases, when the gases are dirty and liable to plug up the ...
B. Kilkovský, Z. Jegla
doaj   +1 more source

The $a_{3/2}$ heat kernel coefficient for oblique boundary conditions [PDF]

, 1998
We present a method for the calculation of the $a_{3/2}$ heat kernel coefficient of the heat operator trace for a partial differential operator of Laplace type on a compact Riemannian manifold with oblique boundary conditions.
Abramowitz M, Avramidi I G, Avramidi I G, Barvinsky A O, Birrell N, Bordag M, Bordag M, Branson T P, Branson T P, Buchbinder I L, Cheeger J, Dowker J S, Dowker J S, Dowker J S, Egorov Yu V, Elizalde E, Esposito G, Esposito G, Fulling S A, Fulling S A, Gilkey P B, Gilkey P B, Gradshteyn I S, Greiner P, Hawking S W, J S Dowker, Kirsten K, Klaus Kirsten, Krantz S G, Marachevsky V N, McAvity D M, McAvity D M, Moss I G, Treves F, Van den Ven A, Watson G N   +35 more
core   +2 more sources

Effects of heat sink on frictional heat effect in PEEK/Steel Pair（Numerical calculation using OpenFOAM model and experiments）

Nihon Kikai Gakkai ronbunshu, 2019
The PEEK material has been applied to a sliding bearing system in a power plant system because of its high mechanical durability. In the solid friction of the PEEK materials, the frictional heat becomes the important factor because the temperature ...
Takuma KOGAWA, Naoto OGASAWARA, Daisuke MORI, Tomoharu AKAGAKI   +3 more
doaj   +1 more source

Overall Heat Transfer Coefficient Evaluation Method for Uncracked Hydrocarbon Fuel in a Regeneratively-Cooled Heat Exchanger of a Scramjet

Applied Sciences, 2022
Regenerative cooling is critical for the thermal protection of hypersonic propulsion systems, wherein the flow and heat transfer characteristics of the hydrocarbon fuel in the cooling channel are crucial.
Haowei Li, Guowei Lin, Qing Xu, Xiaojia Fang, Shengxian Xian   +4 more
doaj   +1 more source

Calculation of Nodal Prices for Heat Energy in Heat Supply Systems [PDF]

E3S Web of Conferences, 2020
The article is devoted to the calculation of nodal prices for heat energy in heat supply systems. The problem, mathematical model and method of calculating nodal prices of heat energy for all consumers of the heat supply system considered, taking into ...
Penkovskii Andrey, Khamisov Oleg, Kravets Angelica   +2 more
doaj   +1 more source

Study on Calculation Method of Transient Temperature of IGBT in Metro Vehicles

机车电传动, 2021
The physical structure of IGBT module package was introduced, and the main mechanism of chip failure caused by heat shock was analyzed. The main transfer path of chip heat loss was analyzed, the transient heat-transfer model of each link of heat transfer
Wenjie ZENG, Hua LI, Guanqiang HE, Shengpan MA, Weiwei WAN, Kai HE   +5 more
doaj  

On QCD Thermodynamics with Improved Actions [PDF]

, 1997
We discuss recent advances in the calculation of thermodynamic observables using improved actions. In particular, we discuss the calculation of the equation of state of the SU(3) gauge theory, the critical temperature in units of the string tension, the ...
Karsch, Frithjof
core   +2 more sources

Enhancing performance of polymer-based microchannel heat exchanger with nanofluid: A computational fluid dynamics-artificial neural network approach

South African Journal of Chemical Engineering, 2023
Polymer-based heat exchangers can offer a promising solution for environmental sustainability due to their low energy consumption. The incorporation of microchannels and nanofluids further enhances the heat transfer performance of these heat exchangersIn
Chaiyanan Kamsuwan, Xiaolin Wang, Lee Poh Seng, Cheng Kai Xian, Ratchanon Piemjaiswang, Pornpote Piumsomboon, Kanit Manatura, Mongkol Kaewbumrung, Yotsakorn Pratumwal, Somboon Otarawanna, Benjapon Chalermsinsuwan   +10 more
doaj   +1 more source

Heat-kernel coefficients of the Laplace operator on the D-dimensional ball [PDF]

, 1995
We present a very quick and powerful method for the calculation of heat-kernel coefficients. It makes use of rather common ideas, as integral representations of the spectral sum, Mellin transforms, non-trivial commutation of series and integrals and ...
Amsterdamski, Avramidi, Barvinsky, Blau, Branson, Branson, Cognola, De Witt, Dettki, Dolan, Dowker, D’Eath, E. Elizalde, Elizalde, Elizalde, Elizalde, Esposito, Esposito, Esposito, Fulling, Gilkey, Greiner, Hawking, K. Kirsten, Kamenshchik, Kennedy, Leseduarte, M. Bordag, Mc Avity, Moss, Moss, Moss, Moss, Stewartson, Voros, Waechter, Weldon   +36 more
core   +3 more sources

Heat diffusion in the disordered electron gas [PDF]

, 2015
We study the thermal conductivity of the disordered two-dimensional electron gas. To this end we analyze the heat density-heat density correlation function concentrating on the scattering processes induced by the Coulomb interaction in the sub ...
Finkel'stein, A. M., Schwiete, G.
core   +3 more sources