In this paper. a mathematical model has been developed to predict temperature and moisture distribution within a column dryer taking into account the influence of the change of air moisture on the grain moisture through the sorption isotherm. In the development of the energy equation, the influence of moisture contents on the properties of the mate

In a competitive world with limited resources, it is important to train our students in creativity. To maintain an edge over others, it is essential to produce unusual solutions to problems and challenges. Training students in divergent thinking is considered an essential element in the development of creativity. Ideas, whatever the nature may be,

Creativity is the ability of a person that enables him/her to think of, dream up or visualize unusual solution to a problem. It plays an important part in the development of a nation. Generally, a creative process involves five significant steps: first insight, preparation, incubation, illumination and verification. Innovation, on the other hand, i

Energy and environment, both arc essential for our survival on the planet earth to ensure a deeem standard of living and good health. However, there is a price [or the comfort that we strive hard to achievc. It took forty years to realize that CFC (Chlorofluorocarbons) causes Ozone depletion. Similarly. greenhouse gases and acid rain are realities

A solar assisted heat pump drying system has been designed, fabricated and tested. The performance of the system has been investigated under the meteorological conditions of Singapore. This paper presents an economic optimization of a solar assisted heat pump drying system. Economic viability of solar energy heating systems is usually made by compa

This paper includes results of an investigation carried out on a desalination plant which consists of a direct expansion solar assisted heat pump (DXSAHP) coupled to a single-effect evaporator unit. The working fluid used in the heat pump is R134a. The distillate is obtained via falling film evaporation and flashing in the evaporator. Experiments h

The performance of a low temperature solar collector, which acts as an evaporator of a heat pump system, has been investigated. An experimcntal setup has been designed, fabricated and tested under the meteorological conditions of Singapore. Refrigerant 134a has been used in the experiments. Effects of various parameters have been considered. Result

This paper describes the heat transfer process and the movement of the solid-liquid interface when the energy is added to a PCM, paraffin wax, through a vertical wall heated under conditions of uniform heat flux and constant temperature. Experiments indicate that the initial mode of heat transfer in the melting process was purely conduction control

This paper describes a method of economic optimization of an integrated solar heat pump system for space cooling, water heating and drying. The system can serve three functions simultaneously or independently. A simulation model for this system was developed to study the influence different variables. The results were validated by a series of exper

Finite element simulation of the rigid die compaction of metal powders can significantly help designers avoid some of the typical problems they face such as the high density gradients within compacted parts and related cracking. In this paper, the modeling of an axisymmetric flanged part using finite element packages ABAQUS and LS-DYNA has been inv