The rural poor are often marginalized and restricted from access to markets, public services and information, mainly due to poor connections to transport and communication infrastructure. Despite these unfavorable conditions, agricultural technology investments are believed to unleash unused...

Variable renewable electricity (VRE), generated for instance by wind or solar power plants, is characterised by negligible variable costs and an availability that varies over time and space. Locating VRE capacity at sites with the highest average availability maximises the potential output....

This paper introduces a theoretical analysis of the performance of photovoltaic modules under different meteorological conditions and design parameters. Based on the analysis, A FORTRAN computer sub-program has been constructed and connected to TRNSYS simulation program. The present sub-program...

A theoretical method is developed to analyze carbon dioxide capture by a stationary single droplet for evaluating the fundamental mass transfer behavior. In the method, the gas-phase diffusion is predicted using a similarity method and the technique of separation of variable is employed to...

In this article, multi-reflection of radiation on both parabolic reflectors of CPC with one sided flat absorber and its effect on calculations of energy collection are theoretically investigated. Results show that, when a beam of radiation strikes on the aperture at incidence angle near zero, a...

This study is aimed at theoretical analysis of the effects of the geometrical parameters on the shaft work of the Stirling engines. The optimal combination of the phase angle and the swept volume ratio, that leads to maximization of the shaft work of the engine, is obtained under different...

A balcony wall type solar water heater system was designed and constructed in a high-rise building. The U-type evacuated glass tube solar collector is fixed vertically on the balcony wall. The water, heated in the solar collector, flows through the exchanger coil in the water tank and then flows...