Electrochemical energy storage systems are categorized into different types, according to their mechanisms, including capacitors, supercapacitors, batteries and fuel cells. All battery systems include some main components: anode, cathode, an aqueous/non-aqueous electrolyte and a membrane that separates anode and cathode while being permeable to ions. Being one of the key parts of any new electr...

The use of mathematical modeling to predict and investigate the effect process variables in research engineering field energy conversion storage has also received special attention from scientists industrial designers this due their importance global economy. This review article investigates applications simulation processes, finally, with a case study, application desired processes be tested c...

Rising climate change issues are prompting engineers and scientists to focus more on improving renewable energy conversion systems [...]

The energy regulation on the refrigeratory compressor is described. Both the energy-saving principle and performance of conversion compressor are discussed in detail. Two different modes of the control for compressor, frequency conversion cooling and full-frequency run, are compared here. It is concluded that frequency conversion is better than full-frequency on energy-saving. The energy saving...