Energy storage is a persistent problem in general and electrical energy storage in particular. Supercapacitor is emerging technology in the field of electrical energy storage and its use along with battery or fuel cell is viewed as a solution in many portable systems. Supercapacitor is a new...

Low temperature hydrogen fuel cells are electrochemical devices which offer a promising alternative to traditional power sources. Fuel cells produce electricity with a reaction of the fuel (hydrogen) and air. Fuel cells have the advantage of being clean; only producing water and heat as by...

The purpose of this paper is to suggest a simple way of determining the thermal characteristic of free-form buildings, which can be applied at an early stage of the design phase. The thermal load of a reference building estimated using TRNSYS 16 is compared with those for various free-form...

The transesterification reaction of soybean oil with methanol is studied with different γAl2O3 heterogeneous catalysts. The catalysts used are K-γAl2O3, Na-γAl2O3, Li-γAl2O3, Ca-γAl2O3 and Ba-γAl2O3 both 5% and 10% in metal content are prepared by impregnation. The first study concluded...