Combined heat and power (CHP) systems in both power stations and large plants are becoming one of the most important tools for reducing energy requirements and consequently the overall carbon footprint of fundamental industrial activities. While power stations employ topping cycles where the heat rejected from the cycle is supplied to domestic and industrial consumers, the plants that produce s...

Temperature has a significant role in many actions performed on rocks. An example would be the effect of temperature on rocks in the burial of nuclear waste, geothermal energy extraction, deep oil well drilling, and fires in tunnels. In addition, due to diurnal/nocturnal as well as seasonal temperature variations, rocks undergo a process of heating and cooling. In the present work, the effect o...

The coupling of solar thermal and photovoltaic technologies with combined cooling, heating power systems has significant impacts on the reduction fossil fuel consumption pollutant emissions. In this study, a mathematical model hybrid heating, system consisting storage units, batteries, microturbines, collectors, is developed. Meanwhile, based following load strategy electric strategy, state bat...

Hybrid photovoltaic-thermal heat pump (PV/T-HP) solar energy systems are promising since they can achieve a system total efficiency greater than 80%. By maximizing the output of PV/T for simultaneous heating and cooling, this strategy meet over 60% urban households’ needs around 40% their cooling needs. In work, novel evaporator was designed, fabricated, an aluminium foil encapsulated hydrated ...

In some climates, massive buildings made of stone, masonry, concrete, earth and … can be utilized as one of the simplest and most effective ways of reducing building heating and cooling loads. Very often such savings could be achieved in the design stage of the building and with a relatively low-cost. Such declines in building envelope heat losses combined with optimized material configurati...