The design and development of a photovoltaic thermal (PVT) collector were developed in this study, electrical efficiency assessed. To improve system performance, two types coolants employed, liquid liquid-based MnO nanofluid. Flow rates ranging from 1 to 4 liters per minute (LPM) for the interval 1.0 LPM together with 0.1% concentration manganese oxide (MnO) Various parametric investigations, i...

The effect of electrostatic electron trapping in the presence of a depressed collector has been included in gyrotron efficiency computations. The results are presented as general contour plots in the control parameter plane. A condition for trapping is derived in terms of the retarding voltage. The overall electron efficiency as a function of the retarding voltage has been calculated for a repr...

Traditional fossil fuels lead to environmental problems and are also depleting. A significant portion of global energy consumption is due to building’s air conditioning. Nowadays there is a great attention toward renewable and sustainable energy sources to support the buildings energy requirements. In this study, a solar cooling machine was designed for a three-floor residential building under ...

This paper attempts to analyze the propagation characteristics of radio signal inside a partially open drain environment using an empirical approach. The proposed research topic concerns a unique situation in several Asian countries because the drainage systems in these countries differ notably from those in the US and Europe in that the former are partially open on the top while the latter are...