Continuous improvements in the power rating and switching characteristics of power semiconductor devices have enabled the use of power electronics converters in high power variable speed drives (VSDs). These multimegawatt ...

This paper discusses the environmental attributes to underground building shape and configuration, materials, structures, use, maintenance, lighting, occupancy, and management. These criteria are hypothesized to be of more ...

In this paper, a parametric study of a PEM fuel cell integrated with a double effect absorption system is carried out in order to study the effect of different operating conditions on the efficiency of the PEM fuel cell, ...

Air conditioning systems have a major impact on energy demand. With fossil fuels fast depleting, it is imperative to look for cooling systems that require less high-grade energy for their operation. In this context, ...

In the Arab cities the housing buildings is to be exposed to the sun-hot rays specially in the summer, which is effected on peoples indoors and outdoors. Therefore, many peoples used Air conditioning apparatus to have the ...

With the development of the economy in the recent years, Malaysia is maintaining a high economic growth and therefore, its energy consumption increases dramatically. Residential buildings are characterized by being ...

A novel zeolite-water absorption heat pump module comprising an adsorber, an evaporator and a condenser heat exchanger as well as a module non-return valve in a hermetically sealed vessel is introduced. The investigated ...

In this study heat loss is evaluated with the modeling software of Iranian Construction Engineering Organization, for both with and without insulation in the building. Of course the evaluation is in accordance with the ...

Cooling with heat is hot. Demand for cooling often coincides with the supply of solar heat. This makes thermally driven chillers (TDC's) in combination with solar collectors interesting for improving the energy efficiency ...