A solar trigeneration system, based on photovoltaic-thermal (PV/T) collectors, photovoltaic (PV) modules and a heat pump unit for heating and cooling, is modelled to forecast the thermal and electric yields of the system. The aim of the trigeneration system is to provide enough electricity, domestic hot water (DHW), heating and cooling power to meet the typical demand of an urban single family ...

Solar heating and cooling (SHC) systems are currently attracting attention, especially in times of increasing energy prices supply crises. In lower prices, absorption SHC were not competitive to compression supported by photovoltaic (PV) modules due the high investment costs total efficiency. This paper aims discuss current changes terms feasibility application a small system mild Mediterranean...

The energetics of hurricane Hilda (1964) are studied through the theory of available potential energy applied to a limited fixed region surrounding the storm. The generation of available potential energy is shown t o be closely dependent on differential heating within the baroclinic structure of the hurricane, occurring primarily in the middle and upper troposphcre of the core of the storm. The...

Solar energy is one of the most abundant sources of renewable energy for the future. This solar energy can be extracted by PV system. Many methods for PV installation are carried out, such as roof top PV system, dam top PV system; floating PV, canal top PV system etc. In canal top system, PV panels are placed above the water canal which saves installation area and reduces evaporation loss. The ...

We present the results from a study of the spatial distributions of cooling gas and intrinsic X-ray absorbing material in a sample of nearby, X-ray bright cooling flow clusters observed with the Position Sensitive Proportional Counter (PSPC) on ROSAT. Our method of analysis employs X-ray colour profiles, formed from ratios of the surface brightness profiles of the clusters in selected energy ba...

The aim of this work is to present a dedicated Solar Polygeneration System (PROTEAS System) for the simultaneous production of electricity, hot water and air-conditioning. The core of the PROTEAS System is the innovative setup of Total Internal Reflection Reflectors made of plastic (Primary Optical System), which concentrate the solar rays up to 5,000 suns, homogenized to 1,000 suns by speciall...

Water resources for irrigation can be difficult to obtain specially in the arid regions. However, for high humidity areas such as places close to the sea, water can be condensed from the air. In this paper we build water condensation system based on thermoelectric cooler. The system consists of cooling elements, heat exchange unit and air circulation unit. A solar cell panel unit with a relevan...

In this paper, a geothermal and solar-assisted combined system is designed for the electricity cooling of residences. The water from resource heat transfer fluid heated in parabolic trough collector used as source absorption system. organic Rankine cycle (ORC) generates power with cycle. produced supported to grid. Engineering Equation Solver (EES) Aspen Plus program are thermodynamic thermoeco...