RELATIVE ARRANGEMENT STRUCTURE OF HEAT TRANSFER TUBE WITH FIN Alkanoylanilides of formula (I) and their Na, K or N(R8)3R9 salts are prepd. In the formulas, R0 is F, Cl or Br; R1 is CF3, C2F5, C3F7 or n-, i- or sec.-C4F9; R2 is CF3, C2F5, C3F7 or when R=F, R2 ma...
thereby improving the heat transfer efficiency from its surface to the surrounding fluid. Through surface treatment and other methods, the effective heat transfer area is increased, achieving enhanced cooling and temperature control.
thereby improving the heat transfer efficiency from its surface to the surrounding fluid. Through surface treatment and other methods, the effective heat transfer area is increased, achieving enhanced cooling and temperature control.
the boiling-based heat exchange intensification rates inside and outside the tube were obtained:2.3 for the inner threaded structure inside the tube and 4.05~5.22 for the boiling heat exchange outside the tube respectively.In the meantime,a formulae showing the relationship between the heat ...
The exact solution of fin conduction has been get, and derived efficiency and the corresponding fin heat flux formula. And an example has been given to verify. The solution can be applied to engineering practice, and guided theoretical the heat transfer enhancement in the design of fin.Huajun ...
A general formula for the second-order projection method for solution of unsteady incompressible Navier-Stokes equations is presented. It includes the four... MJ Ni,S Komori,N Morley - 《Numerical Heat Transfer Part B Fundamentals》 被引量: 50发表: 2003年 SIMULATION OF UNSTEADY INCOMPRESSIBLE FLO...
In the specific context of plate-fin heat exchangers featuring offset strip fins (OSF) and wavy fins (WF), calculating the hydraulic diameter (Dh) is slightly more complex due to the unique design and structure of these fins. For simplicity, the formula considers the same Dh for both OSF ...
Beyond ensuring that the heat flux of the sink adequately removes heat from a surface, how do others determine an appropriate length? 3) Going through your spacing formula, it appears that your beta coefficient for air is 1.24e-3. Is this correct? Looking at http://www.engineeringtoolbox...
temperatures of the heat exchanger, heat transfer capacity at the tube/fin junction, etc. Due to the complex physical processes present, development of a formula by which an isotherm can be selected is impractical. The fin 16 absorbs heat from the combustion product gases by both radiation and...
For insulation, natural convection heat transfer on the evaluation surface of the cooling plate was calculated using Fishenden's formula Nu=0.54Ra1/4[54]. Nu was the Nusselt number, and Ra was 3.36×105 in the Rayleigh number. The plate surface temperature was 28.7 °C, owing to the minim...