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An energetic–exergetic analysis of a residential CHP system based on PEM fuel cell

Barelli, L.; Bidini, G.; Gallorini, F.; Ottaviano, A. - In: Applied Energy 88 (2011) 12, pp. 4334-4342

The use of fuel cell systems for distributed residential power generation represents an interesting alternative to traditional thermoelectric plants due to their high efficiency and the potential recovering of the heat generated by the internal electrochemical reactions. In this paper the study...

Persistent link: https://www.econbiz.de/10010576290

Towards integrated sustainability assessment for energetic use of biomass: A state of the art evaluation of assessment tools

Buytaert, V.; Muys, B.; Devriendt, N.; Pelkmans, L.; … - In: Renewable and Sustainable Energy Reviews 15 (2011) 8, pp. 3918-3933

Biomass is expected to play an increasingly significant role in the ‘greening’ of energy supply. Nevertheless, concerns are rising about the sustainability of large-scale energy crop production. Impacts must be assessed carefully before deciding whether and how this industry should be...

Persistent link: https://www.econbiz.de/10010577222

Energy and exergy analysis of a building integrated semitransparent photovoltaic thermal (BISPVT) system

Vats, Kanchan; Tiwari, G.N. - In: Applied Energy 96 (2012) C, pp. 409-416

In this paper, a study has been carried out to evaluate the energy and exergy performance of a building integrated semitransparent photovoltaic thermal (BISPVT) system integrated to the roof of a room. Comparisons have been carried out on the basis of energy and exergy by considering six...

Persistent link: https://www.econbiz.de/10010702458

Knowledge based decision making method for the selection of mixed refrigerant systems for energy efficient LNG processes

Khan, Mohd Shariq; Lee, Sanggyu; Rangaiah, G.P.; Lee, … - In: Applied Energy 111 (2013) C, pp. 1018-1031

Mixed refrigerant (MR) systems are used in many industrial applications because of their high energy efficiency, compact design and energy-efficient heat transfer compared to other processes operating with pure refrigerants. The performance of MR systems depends strongly on the optimum...

Persistent link: https://www.econbiz.de/10010702661

A review on exergy analysis of industrial sector

BoroumandJazi, G.; Rismanchi, B.; Saidur, R. - In: Renewable and Sustainable Energy Reviews 27 (2013) C, pp. 198-203

Performance analysis of industrial sector with high-energy consumption, about 30–70% of total energy use of the countries, is taken into consideration recently. A number of studies have been conducted on energy analysis of different industries and during the last decades exergy analysis...

Persistent link: https://www.econbiz.de/10010703039

First and second law multidimensional analysis of a triple absorption heat transformer (TAHT)

Donnellan, Philip; Byrne, Edmond; Oliveira, Jorge; … - In: Applied Energy 113 (2014) C, pp. 141-151

In this paper, a rigorous multi-dimensional analysis is conducted upon a triple absorption heat transformer (TAHT) using the working fluids water and lithium bromide (LiBr). A full factorial design is created which determines the most influential factors affecting the system’s coefficient of...

Persistent link: https://www.econbiz.de/10010718914

Thermoeconomic Optimization of a Renewable Polygeneration System Serving a Small Isolated Community

Calise, Francesco; d'Accadia, Massimo Dentice; … - In: Energies 8 (2015) 2, pp. 995-1024

During the last years, special attention has been paid to renewable polygeneration technologies, able of simultaneously producing thermal, cooling, electrical energy and desalinated water from seawater. This paper focuses on an innovative polygeneration system driven by renewable energy sources,...

Persistent link: https://www.econbiz.de/10011147127

Quantifying spatio-temporal dynamics of solar radiation exergy over Turkey

Alta, D.; Ertekin, C.; Evrendilek, F. - In: Renewable Energy 35 (2010) 12, pp. 2821-2828

The insensitivity to energy quality is one of the disadvantages of an energy analysis when compared to an exergy analysis. It is only the exergy analysis that clearly reveals the degradation of energy quality in the processes of absorption and emission of solar radiation. The national spatial...

Persistent link: https://www.econbiz.de/10011044029

Design and optimization of a downhole coaxial heat exchanger for an enhanced geothermal system (EGS)

Yekoladio, P.J.; Bello-Ochende, T.; Meyer, J.P. - In: Renewable Energy 55 (2013) C, pp. 128-137

an enhanced geothermal system (EGS). The optimum mass flow rate of the geothermal fluid for minimum pumping power and … on the optimum geothermal mass flow rate and steady-state operation. Transient effect or time-dependent cooling of the … the geothermal fluid were disregarded to simplify the analysis. The paper consists of an analytical and numerical …

Persistent link: https://www.econbiz.de/10011044162

Thermal analysis and optimization of an anaerobic treatment system of whey

Spachos, Thomas; Stamatis, Anastassios - In: Renewable Energy 36 (2011) 8, pp. 2097-2105

The whey produced during cheese and cream cheese making process is one of the most important environmental problems dairy industries are facing, due to its high organic load. Anaerobic treatment seems to be a promising solution for this problem, since it not only reduces greatly the organic load...

Persistent link: https://www.econbiz.de/10011044933