Results 241 to 250 of about 4,691,836 (302)

A generalized approach to heat transfer in pipe flow with internal heat generation

Chemical Engineering Science, 2010
Abstract In the last few years, there has been a renewed interest in the molten salt reactor (MSR), one of the “Generation IV International Forum” concepts, which adopts a circulating molten salt mixture as both heat generator (fuel) and coolant. The heat transfer of a fluid with internal heat generation depends on the strength of the source whose ...
DI MARCELLO, VALENTINO, CAMMI, ANTONIO, LUZZI, LELIO   +2 more
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Generalized Solvation Heat Capacities

The Journal of Physical Chemistry B, 2006
The partial molar heat capacity associated with a constant-pressure solvation process is extended to define a total of six generalized solvation heat capacities, each of which contain unique physical information. These arise from all the possible cross derivatives of the reversible heat of solvation (with respect to T and N), each evaluated at either ...
Dor, Ben-Amotz, B, Widom
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Heat Transfer and Heat Generation

2014
Thermal conductivity is a decisive parameter for the sizing of heat sinks for semiconductors or for other elements in electronic circuits. Heat production and conductivity may also be an important topic in elastomer friction. In this chapter, it will be shown that also problems of heat and electrical conductivity can be exactly solved within the ...
Markus Heß, Valentin L. Popov
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On Generalized Heat Polynomials

SIAM Journal on Mathematical Analysis, 1974
The concept of a heat polynomial defined earlier by Rosenbloom and Widder is extended and the polynomials are characterized using integrals of Poisson type. One particular class of polynomials is examined in detail and leads to expansions of solutions of the problem \[u_{xx} = u_t ,\qquad u(x,0) = f(x)\] which are different from those obtained by ...
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Heat generation by impulse ultrasound

Ultrasonics, 2004
An original method allowing to get a system of nonlinear evolution equations for the interacting modes applies to a problem of the heat generation by non-periodic ultrasound, including impulse one. The basic idea and final equations for the thermoviscous plane flow are presented. The limit of periodic source is traced.
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Heat Generated by Knee Prostheses

Clinical Orthopaedics & Related Research, 2006
Temperature sensors were placed in 50 knees in 25 patients who had one or both joints replaced. Temperature recordings were made before walking, after walking, and after cycling. The heat generated in healthy, arthritic, and replaced knees was measured. The knee replacements were done using eight different prostheses.
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Heat transfer in cylinders with heat generation

AIChE Journal, 1955
AbstractThe prediction of temperatures has been studied for a tubular flow reactor when heat is generated at a rate which is a linear function of the local temperature. Analytical solutions are presented both for the case where the wall is isothermal and for the case where the exterior surroundings are isothermal and the heat transfer coefficient ...
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Irreversibility and Heat Generation in the Computing Process

IBM Journal of Research and Development, 1961
It is argued that computing machines inevitably involve devices which perform logical functions that do not have a single-valued inverse. This logical irreversibility is associated with physical irreversibility and requires a minimal heat generation, per machine cycle, typically of the order of kT for each irreversible function. This dissipation serves
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Generalizing the meaning of ‘heat’

International Journal of Heat and Mass Transfer, 1968
Abstract The concept of ‘heat’ has a strict meaning in thermodynamics which is less general than the use of the concept in this journal. The author concludes that the usage in this journal is correct and that if any changes are to be made, they should be made in the structure of thermodynamics.
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