Flow Insulation Characteristics of Combined Two Cordierite Alumina Porous Plates with Free Space

2017 ◽  
Vol 889 ◽  
pp. 275-281
Author(s):  
Preecha Khantikomol ◽  
Maitree Polsongkram
Keyword(s):  
Fluid Flow ◽  
Air Temperature ◽  
Thermal Efficiency ◽  
Free Space ◽  
Porous Plate ◽  
Temperature Drop ◽  
Fluid Temperature ◽  
Air Flow Rate ◽  
Efficiency Increase ◽  
Flow Through

Flow insulator is the material which having fluid flow through itself resulting to the fluid temperature difference between the upstream and downstream regions. The flow insulation characteristics of combined two cordierite alumina (Cr-Al) porous plates with 2 mm free space was investigated experimentally. The results indicated the air temperature drop across the flow insulator and the thermal efficiency increase with the inlet air temperature and decrease with increasing air flow rate. The higher PPI porous plate placing upstream layer resulted in increasing the thermal efficiency of the flow insulator significantly.

scholarly journals Bingham fluid flow through oscillatory porous plate with ion-slip and hall current

2019 ◽  
Author(s):  
Md. Tusher Mollah ◽  
Muhammad Minarul Islam ◽  
Mohammad Ferdows ◽  
Md. Mahmud Alam
Keyword(s):  
Fluid Flow ◽  
Hall Current ◽  
Porous Plate ◽  
Bingham Fluid ◽  
Ion Slip ◽  
Flow Through

Study on Thermal Performance of a New Solar Air Heating Collector

2013 ◽  
Vol 706-708 ◽  
pp. 1814-1817
Author(s):  
Zhi Zhuang ◽  
Jing Xue ◽  
Hai Ye
Keyword(s):  
Aspect Ratio ◽  
Air Temperature ◽  
Thermal Performance ◽  
Thermal Efficiency ◽  
Macroscopic Model ◽  
Airflow Rate ◽  
Effective Energy ◽  
Air Flow Rate ◽  
Air Heating ◽  
Solar Air Collector

The thermal performance of a new Solar air Collector with Colored Fins (SCCF) used for heating was studied. A macroscopic model was proposed based on the law of mass and energy conservation. The effects of the parameters such as dimensions of SCCF, fin angle and material of the fins on the outlet air temperature, airflow rate, effective energy and thermal efficiency were discussed. The results indicate that thermal performance of SCCF can be obviously improved by the increases of aspect ratio, fin angle and vent size. The air flow rate is the dominated factor affecting effective energy and thermal efficiency of SCCF. All these study can be used for guiding the design of SCCF.

scholarly journals MHD DOUBLE DIFFUSIVE AND CHEMICALLY REACTIVE FLUID FLOW THROUGH A ROTATING POROUS PLATE

2017 ◽  
Vol 5 (7) ◽  
pp. 363-373
Author(s):  
M. Umamaheswar ◽  
Raju ◽  
S.V. K. Varma ◽  
C. Sucharitha
Keyword(s):  
Fluid Flow ◽  
Porous Plate ◽  
Physical Parameters ◽  
Heat Absorption ◽  
Governing Equations ◽  
Finite Difference Technique ◽  
Reactive Fluid ◽  
Flow Through ◽  
Reactive Fluid Flow ◽  
Double Diffusive

In this paper MHD rotating double diffusive and chemically reactive fluid flow past a vertical porous plate with thermal radiation and heat absorption/generation is studied. The non-dimensional governing equations involved in the present analysis are solved by using finite difference technique. The effects of various physical parameters on velocity, temperature and concentration along with skin friction, the rate of heat transfer in the form of Nusselt number and the rate of mass transfer in the form of Sherwood number are studied through the graphs and tables.

scholarly journals Dufour and Soret effects on steady MHD free convection and mass transfer fluid flow through a porous medum in a rotating system

1970 ◽  
Vol 4 (1) ◽  
pp. 43-55 ◽  
Author(s):  
Nazmul Islam ◽  
Md Mahmud Alam
Keyword(s):  
Boundary Layer ◽  
Mass Transfer ◽  
Porous Medium ◽  
Fluid Flow ◽  
Free Convection ◽  
Porous Plate ◽  
Local Similarity ◽  
Rotating System ◽  
Local Skin ◽  
Flow Through

The numerical studies are performed to examine the steady MHD free convection and mass transfer fluid flow through a continuously moving porous medium with thermal diffusion and diffusion thermo past a semi-infinite vertical porous plate in a rotating system. Impulsively started plate moving in its own plane is considered. With appropriate transformations the boundary layer equations are transformed into nonlinear ordinary differential equations. The local similarity solutions of the transformed dimensionless equations for the flow, heat and mass transfer characteristics are evaluated using shooting iteration technique. Numerical results are presented in the form of velocity, temperature and concentration within the boundary layer for different parameters entering into the analysis. Also the effects of the pertinent parameters on the local skin-friction coefficients and rate of heat transfer as well as rate of mass transfer in terms of the local Nusselt number and Sherwood number respectively are also discussed. Keywords: MHD free convection, porous medium, rotation effect, Dufour effect, Soret effect.DOI: 10.3329/jname.v4i1.915 Journal of Naval Architecture and Marine Engineering 4(2007) 43-55

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