The use of air-source heat pumps (ASHP) is increasing to meet the energy needs residential buildings, and manufacturers equipment have permanently expanded range work improved efficiency in very adverse outdoor air conditions. However, time a wide different technologies, problem using ASHP, from techno-economic point view, constantly present. Exergetic exergoeconomic cost no longer provide suff...

The water scarcity in the world near future become to a global challenge. main aim of present study was elucidate performance three identical solar distillation units with different configurations under climatic conditions city Tehran. All systems were equipped heating source that are thermoelectric modules (TEH), copper heater (CH), and (SWH) while all system assisted an active external conden...

Biomass fuel energy can be utilized in cogeneration cycles through the gasification process. This reduces pollution and increases efficiency of conventional cycles, makes use renewable instead fossil fuels. In this paper, order to generate both electricity cooling, a system has been proposed using biomass Then, various ways injecting steam into each cycle are improve its performance. The follow...

Abstract Drying process has been employed since ancient times to preserve agricultural products by reducing the moisture content. Solar dryer is one of most commonly used dryers due its availability, reliability, and environmentally friendly nature. It practical in rural areas solar can be fabricated with a simple design. Despite potential, designing long-term, feasible challenging without good...

Integrated solar-assisted gasification cycles (ISGC) have emerged as a more flexible and environmentally friendly solution for producing power, steam, other high-valued by-products from low-cost opportunity fuels. In this light, paper investigates new ISGC system converting heavy refineries fuels into power steam utilities while enhancing energy efficiency economic environmental performance ind...

Cogeneration and trigeneration systems have been broadly employed as part of the strategies oriented toward rational energy use. The assessment these must include simultaneous considerations costs, irreversibility, losses, their causes. This work presents a step-by-step thermoeconomic analysis microcogeneration unit, composed an internal combustion engine ammonia-water single-effect absorption ...

Thermal grids are efficient, reliable, and sustainable technologies for satisfying the thermal demands of buildings. The capability to operate at a low temperature allows not only integration heat produced by renewable energy sources but also storage surplus electricity from grid via “power heat” technologies. Besides, in future, consumers expected behave increasingly as “prosumers”, supplying ...