This article presents a numerical study of an Evacuated Tube Collector (ETC) based Ammonia-Water absorption refrigeration system. This system utilizes solar energy as an energy source and does not depend on conventional energy sources for its operation. The present system involves the use of hot...

Modern very large scale integration technology is based on fixed-outline floorplan constraints, mostly with an objective of minimizing area and wirelength between the modules. The aim of this work is to minimize the unused area, that is, dead space in the floorplan, in addition to these...

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Experimental results from near shore bottom standing OWC based wave energy plants in Japan and India have now been available for about a decade. Historically the weakest link in the conversion efficiency of OWC based wave energy plants built so far has been the bidirectional turbine. This is...

This work attempts to develop a correlation to predict thermal NOx formation in compression ignition (CI) engine when fuelled with diesel and biodiesel. Attention was focussed on both the fuel properties (cetane number, density) and engine design factors (bore, stroke, compression ratio, fuel...

Presently out of the total energy consumption, a large share of energy is being used by refrigeration and air conditioning equipments. The present study is based on literature review on the refrigeration systems, currently used refrigerant–absorbent pairs and also on different sources of...

The impact of global warming and an increase in the indoor cooling equipments using energy sources other than conventional energy have become very attractive because they can reduce consumption of fossil fuels as well as harmful emissions in to the environment. The solar energy is one of the...

This paper investigates recent advances in our understanding of the global distribution of income, and produces the first estimates of global inequality that take into account data on the incomes of the top one percent within countries.  We discuss conceptual and methodological issues -...