Results 71 to 80 of about 725,498 (217)
Local heating effects on flow and heat transfer in microchannels
, 2009 This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009) +2 more
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THE HEAT FLOW OF THE CCR ALGEBRA
Bulletin of the London Mathematical Society, 2002 Let Pf(x) =−if′(x) and Qf(x) = xf(x) be the canonical operators acting on an appropriate common dense domain in L2(ℝ). The derivations DP(A) = i(PA−AP) and DQ(A) = i(QA−AQ) act on the *-algebra [Ascr ] of all integral operators having smooth kernels of compact support, for example, and one may consider the noncommutative ‘Laplacian’, L = D2P+D2Q,
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Contextuality in Anomalous Heat Flow
PRX QuantumIn classical thermodynamics, heat must spontaneously flow from hot to cold systems. In quantum thermodynamics, the same law applies when considering multipartite product thermal states evolving unitarily. If initial correlations are present, anomalous heat flow can happen, temporarily making cold thermal states colder and hot thermal states hotter ...
Naim E. Comar +4 more
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A comparison with the three-zone model for flow boiling heat transfer in small diameter tubes
, 2006 Flow boiling heat transfer experimental results, obtained in two stainless steel tubes of internal diameter 4.26 mm and 2.01 mm using R134a as the working fluid, indicate that the local heat transfer coefficient increases with heat flux and is ...
Karayiannis, TG +2 more
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Results in Physics, 2019 In the characterization of particle size distribution (PSD) using ultrasonic attenuation method, the spectrum characteristics such as bandwidth or the number of frequencies is of great significance.
Nan Jia, Ming-xu Su, Xiao-shu Cai
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ON HEAT FLOW AND NON-RECIPROCITY
International Journal of Modern Physics B, 2001 Heat transfer properties in non-reciprocal systems are discussed. An ideal experiment employing microwave or optical isolators is considered in order to investigate the possibility for a spontaneous transfer of energy between two black-bodies at common temperatures.
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, 2010 Heat transfer by natural convection in triangular enclosures is an area of significant importance in applications such as the design of greenhouses, attics and solar water heaters.
Carson, James K. +2 more
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Mathematical model of flat plate solar thermal collector and its validation
E3S Web of Conferences, 2018 In order to predict solar thermal collector’s performance and optimization of control algorithms, proper mathematical models are necessary. Computer calculation technique provides tools for determination of modern materials impact on improvement of heat ...
Wasik Michał +5 more
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Investigation of heat transfer in metal-foam tubes [PDF]
, 2008 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Nowadays metallic foams attract increasing attention in making compact heat exchangers due to its advanced thermal properties.
Lu, Wei
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, 2012 Flow boiling heat transfer characteristics of CO2 with and without oil were investigated experimentally in horizontal smooth and enhanced tubes with an inner diameter of 11.2 mm.
Hrnjak, Predrag S., Kim, Seongho
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