Sahin, A. Z., “Thermodynamics of Laminar Viscous Flow through a Duct Subjected to Constant Heat Flux,” Energy, Vol. 21, No. 12, pp. 1179–1187, 1996. :Sahin A Z. Thermodynamics of Laminar Viscous Flow through a Duct Subjected to Constant Heat Flux[J]. Energy, 1996,21(12) :1179...
Turbulent heat fluxes over a wide region are generally estimated by an aerodynamic bulk formula. Though a remote sensing technique can be expected to estimate global heat flux, it is difficult to obtain every physical parameter included in aerodynamic formulae by a remote sensor. In particular it...
holds for single-phase systems. since this formula relies on the equivalence to the equilibrium system, we do not need to fix the degree of nonequilibrium in the variation. next, we consider a system with a liquid-gas interface. in this case, v is not determined when we use the equation...
Forum: Thermodynamics A Entropy & Heat Flow: Understand Thermodynamics & Multiplicity In my book it says: The bigger entropy of a system, the more heat from the surroundings can enter it. Now, I don't really understand why that is completely. Can anyone explain me? - both in terms of...
The performance and thermal properties of convective–radiative rectangular and moving exponential porous fins with variable thermal conductivity together with internal heat generation are investigated. The second law of thermodynamics is used to investigate entropy generation in the proposed fins. The model...
I assume you want to calculate the flowrate of the cooling water used to cool a stream of hot hydraulic oil. If so, the formula for the heat transfered should be resolved first: Q = W Cp (T2 - T1) Q = heat transfered, Btu/hr W = oil mass flow rate, lb/hr Cp = Specific ...
I'm looking for a on-line thermal conduction calculator, or simple spreadsheet to do some simple calculations. usually I'm looking at sanitary SS tubing...
When the heat flux is very low but enough to start the PHP, the dominant flow pattern of the working fluid is the slug flow. Under this condition, the oscillation of the working fluid is quite random with very low velocity. As the heat flux becomes higher, the flow pattern will change ...
One of the aims of this book is to develop a more complete understanding of the dynamics and thermodynamics of the inner-core region of an intense storm that may include the injection of augmented θe from the low-level eye into the eyewall updraft during parts of its life cycle. Fig. ...