The absorption system is one of the most suitable types of system for air-conditioning use. In addition, it has the advantage of being able to be powered by solar energy. In hot climates this type of system requires a wet cooling tower which consumes a huge amount of water. In arid zones, where...

An analytical solution is presented to describe the performance of a straight convecting fin operating in an oscillating temperature environment. The solution involves the amplitude parameter, A, and the frequency parameter, B, in addition to the steady-state convection-conduction parameter, N....

The absorption system is one of the most suitable techniques for utilising solar energy for air-conditioning purposes. Although it uses solar energy directly with minimum conversion, it consumes considerable quantities of water for the cooling tower. This is a serious disadvantage where solar...

In developing countries and remote areas where an electric supply is not available, a thermo-electric refrigerator is often needed for food and medical drugs storage. Such a refrigerator, which requires a direct current supply is suitable for matching with a photo-voltaic collector (PV). A...

Commercial banks have become a vital part of the contemporary economic life of most societies. Their main function is the mobilization of the society's savings in order to channel them to economic and social uses. Through extending credits to worthy borrowers, commercial banks act to increase...