Cogeneration of electricity and freshwater by integrating photovoltaic/thermal collectors desalination systems is one the most promising methods to tackle challenges water energy shortages in remote areas. This study investigates a decentralized water/electricity cogeneration system combining concentrated vacuum multi-effect membrane distillation system. The merits such configuration include hi...

In this work thermoeconomics is applied to a central thermal system covering three buildings that consists of cogeneration engine, an aerothermal heat pump and natural gas condensing boiler. Cogeneration systems integrated with renewable energy technologies are very attractive solutions in the building sector. Nevertheless, use together active envelope solutions, such as one encountered work, s...

Abstract With the rapid development of renewable energy, demand for frequency regulation and peak shaving coal-fired power plants is increasing. As utilization hours are gradually reduced, economy reduced. In order to improve economic benefits thermal plants, changing from income model dominated by generation “cogeneration auxiliary service”. Among them, energy storage system Lingwu plant Ningx...

The aim of this work is to carry out a thermoeconomic analysis of a single and double-effect LiBr/H2O absorption refrigeration system. The methodology of functional analysis with negentropy is used. The exergetic cost of the main product, the cooling cost, was calculated as a function of the exergy of the heat source. Two cases were analyzed for each system: the first considers a direct-fired s...

As the energy cost is rising steadily and the environmental pollution is becoming an important issue, the roles of process plant boilers like that of the sugar plants boilers need better understanding as they can be made to operate in either energy conserving or bio-mass conserving modes. However, practical models of the plants need to be developed before any effort at optimization and cogenera...

Thermophotovoltaics (TPV) converts the radiant energy of a thermal source into electrical energy using photovoltaic cells. TPV has a number of attractive features, including: fuel versatility (nuclear, fossil, solar, etc.), quiet operation, low maintenance, low emissions, light weight, high power density, modularity, and possibility for cogeneration of heat and electricity. Some of these featur...

Increasing global demand for fresh water is driving the development and implementation of a wide variety of seawater desalination technologies driven by different combinations of heat, work, and chemical energy. This paper develops a consistent basis for comparing the energy consumption of such technologies using Second Law efficiency. The Second Law efficiency for a chemical separation process...