Library Subscription: Guest
ICHMT DL Home Current Year Archives Executive Committee International Centre for Heat and Mass Transfer

COMBINED HEAT AND MASS TRANSFER ANALYSIS FROM ANNULAR FINS OF CONSTANT CROSS-SECTIONAL AREA

DOI: 10.1615/ICHMT.2008.CHT.1100
15 pages

Syed M. Zubair
Mechanical Engineering Department, KFUPM Box # 1060, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia

Abstract

A numerical analysis was carried out to study the efficiency and temperature distribution of annular fins of constant cross-sectional area when subjected to both heat and mass transfer mechanisms. The temperature and humidity ratio differences are the driving forces for the heat and mass transfer, respectively. In the previous work reported in the literature a linear model assumption is used for the relationship between the humidity ratio and temperature; however in the present work actual psychrometric relations are used in the solution procedure. In this regard a nonlinear mathematical model representing the heat and mass transfer mechanisms was solved using a finite difference successive over-relaxation method. Numerical solutions are obtained for the temperature distribution over the fin surface in addition to fin efficiency for both fully wet and partially wet fin surfaces. The numerical results are compared with those of previous studies in order to find if the linear model in the published analytical results are close to the real situation. It was found that one of the linear models for the relation between the humidity ratio and temperature is a reasonable engineering approximation.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH