Numerical investigation on entropy generation in the dropwise condensation inside an inclined pipe

Heat Transfer ◽  
2021 ◽  
Author(s):  
Ehsan Aminian ◽  
Abbas Zolfaghari ◽  
Hamid Saffari
Keyword(s):  
Numerical Investigation ◽  
Entropy Generation ◽  
Dropwise Condensation ◽  
Inclined Pipe

A numerical investigation of CO2 gasification of biomass particles- analysis of energy, exergy and entropy generation

Energy ◽  
2021 ◽  
Vol 228 ◽  
pp. 120615
Author(s):  
Linwei Wang ◽  
Ainul N. Izaharuddin ◽  
Nader Karimi ◽  
Manosh C. Paul
Keyword(s):  
Numerical Investigation ◽  
Entropy Generation ◽  
Co2 Gasification ◽  
Biomass Particles

Numerical investigation of entropy generation in microporous channel with thermal radiation and buoyancy force

2019 ◽  
Vol 93 (11) ◽  
pp. 1465-1476 ◽  
Author(s):  
G. Gopi Krishna ◽  
Srinivas Jangili ◽  
S. R. Mishra ◽  
S. Sreenadh
Keyword(s):  
Thermal Radiation ◽  
Numerical Investigation ◽  
Entropy Generation ◽  
Buoyancy Force

scholarly journals Numerical investigation of entropy generation in laminar forced convection flow over inclined backward and forward facing steps in a duct under bleeding condition

2014 ◽  
Vol 18 (2) ◽  
pp. 479-492 ◽  
Author(s):  
Meysam Atashafrooz ◽  
Nassab Gandjalikhan ◽  
Babak Ansari
Keyword(s):  
Numerical Investigation ◽  
Forced Convection ◽  
Entropy Generation ◽  
Fluid Dynamic ◽  
Numerical Results ◽  
Convection Flow ◽  
Bejan Number ◽  
Entropy Generation Number ◽  
Forced Convection Flow ◽  
Laminar Forced Convection

A numerical investigation of entropy generation in laminar forced convection of gas flow over a recess including two inclined backward and forward facing steps in a horizontal duct under bleeding condition is presented. For calculation of entropy generation from the second law of thermodynamics in a forced convection flow, the velocity and temperature distributions are primary needed. For this purpose, the two-dimensional Cartesian coordinate system is used to solve the governing equations which are conservations of mass, momentum and energy. These equations are solved numerically using the computational fluid dynamic techniques to obtain the temperature and velocity fields, while the blocked region method is employed to simulate the inclined surface. Discretized forms of these equations are obtained by the finite volume method and solved using the SIMPLE algorithm. The numerical results are presented graphically and the effects of bleeding coefficient and recess length as the main parameters on the distributions of entropy generation number and Bejan number are investigated. Also, the effect of Reynolds number and bleeding coefficient on total entropy generation which shows the amount of flow irreversibilities is presented for two recess length. The use of present results in the design process of such thermal system would help the system attain the high performance during exploitation. Comparison of numerical results with the available data published in open literature shows a good consistency.

Numerical Investigation of the Entropy Generation Due to Natural Convection in a Partially Heated Square Cavity Filled With Nanofluids

2016 ◽  
Vol 38 (17) ◽  
pp. 1506-1521 ◽  
Author(s):  
Mohammad Mohammadtabar ◽  
Farshad Mohammadtabar ◽  
Rouholluh Shokri ◽  
Mohtada Sadrzadeh
Keyword(s):  
Natural Convection ◽  
Numerical Investigation ◽  
Entropy Generation ◽  
Square Cavity
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