Volume 1, Issue 2 (2008) | American Journal of Engineering and Applied Sciences

Time-Marching Method for Computations of High-Speed Compressible Flow on Structured and Unstructured Grid

K.C. Ng — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.89.94

The development of Computational Fluid Dynamics (CFD) compressible codes for 2D structured quadrilateral grid and 3D unstructured hexahedral grid is described. The high-speed flow in a nozzle blade ca...

Molecular Interaction Studies of H-Bonded Complexes of Benzamide in 1,4-Dioxan with Alcohols From Acoustic and Thermodynamic Parameters

AN. Kannappan — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.95.99

The ultrasonic velocity, density and viscosity measurements were carried out for the mixtures of benzamide with Propan-2-ol, butan-1-ol, 1-pentanol and n-hexanal in 1,4-dioxan at 303, 308 and 313K. Th...

Effect of Inner Diameter and Inclination Angles on Operation Limit of Closed-Loop Oscillating Heat-Pipes with Check Valves

P. Meena — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.100.103

This research was to study the effect of inner diameter and inclination angles on operation limit of a closed loop oscillating heat pipes with check valves (CLOHP/CV). A set of CLOHP/CV was made of co...

Closed Form Solution to an Optimal Control Problem by Orthogonal Polynomial Expansion

Mohammad Ali Tavallaei — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.104.109

In this study the use of orthogonal polynomials for obtaining a close form solution to optimal control problems with a weighed quadratic cost function, is proposed. The method consists of using the Or...

Effect of Confinement on the Axial Performance of Fibre Reinforced Polymer Wrapped RC Column

A. Rajasekaran — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.110.117

The combined effect of internal steel ties and external FRP wrap was investigated using nine reinforced concrete columns with varying thickness of external wrap. The load, deflection and lateral expan...

Pitch Angle Control of Variable Speed Wind Turbine

Yousif El-Tous — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.118.120

The aim of this study is to design a simple controller to maximize the extracted energy of wind turbines. In this study the pitch angle control of variable speed wind turbine is investigated. In parti...

Soil Structure Interaction between Two Adjacent Buildings under Earthquake Load

Mahmoud Yahyai — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.121.125

In some cases, tall buildings are located in geotechnically unsuitable places, due to their high ratio of height to width; there is risk of uplift and other effects such as overturning and reduction s...

Waste Heat Recovery by Closed-Loop Oscillating Heat Pipe with Check Valve from Pottery Kilns for Energy Thrift

P. Meena — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.126.130

This study aims to design, construct and test the waste heat recovery by closed-loop oscillating heat pipe with check valve from pottery kilns for energy thrift, were used the working fluids with a fi...

A Simple Tubesheet Layout Program for Heat Exchangers

S. Murali — 2008-11-30

American Journal of Engineering and Applied Sciences, Published online: 30 November 2008; doi:10.3844/ajeassp.2008.131.135

The development of tubesheet layout program for shell and tube heat exchangers is presented in this study. Program is written in AutoLISP language, which provides standard tubesheet layout drawing as ...

Hardware Implementation of Higher Throughput Anti-Collision Algorithm for Radio Frequency Identification System

Jahariah Sampe — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.136.140

This paper presents a proposed hardware implementation of Higher Throughput Anti-Collision Algorithm (HTACA) for Radio Frequency Identification (RFID) system. Our proposed HTACA combines a pipeline an...

Analytical Solution of Temperature Field in Hollow Cylinder under Time Dependent Boundary Condition Using Fourier series

Golamali atefi — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.141.148

The objective of this study is to derive an analytical solution of one dimensional heat conduction equation applied in a hollow cylinder, which is subjected to a periodic boundary condition at the out...

Integrated Modeling for Flood Hazard Mapping Using Watershed Modeling System

Seyedeh S. Sadrolashrafi — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.149.156

In this stduy, a new framework which integrates the Geographic Information System (GIS) with the Watershed Modeling System (WMS) for flood modeling is developed. It also interconnects the terrain mode...

Equilibrium Adsorption of Hydrogen and Methane on 5A Molecular Sieve

Hayder A. Abdul Bari — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.157.160

Adsorption equilibrium isotherms of hydrogen and methane are reported for the temperature range 303-333 K and pressure up to 4 MPa. The adsorbent was 5A molecular sieve (supplied by Rhone Poulenc indu...

Nonlinear Whitham-Broer-Kaup Wave Equation in an Analytical Solution

S.A. Zahedi — 2008-06-30

American Journal of Engineering and Applied Sciences, Published online: 30 June 2008; doi:10.3844/ajeassp.2008.161.167

This study presented a new approach for the analysis of a nonlinear Whitham-Broer-Kaup equation dealing with propagation of shallow water waves with different dispersion relations. The analysis was ba...