Results 171 to 180 of about 32,826 (224)

Investigation on porous media coating plus effect of carbon quantum dots and graphite nanoparticles on tubular solar still (TSS) productivity. [PDF]

Sci Rep
El-Fakharany MK, Elbrashy A, Rashad M, Faisal Qasim K.   +3 more
europepmc   +1 more source

Exergoeconomic and enviroeconomic evaluation of double pass solar air heater with black coated porous wire mesh and galvanized iron packed bed. [PDF]

Sci Rep
Tahmid MM, Monem MA, Uddin MM, Hossain MS, Mahmud A, Islam MN.   +5 more
europepmc   +1 more source

Energy, economic and environmental (3E) analysis of geothermal-based plant operation for reliable power production in cold climates. [PDF]

Sci Rep
Dehghani-Sanij A, Khakzad N, Wigston A, Dusseault MB, Fraser R, Nathwani J.   +5 more
europepmc   +1 more source

Optimization of Exergy Output Rate in a Supercritical CO₂ Brayton Cogeneration System. [PDF]

Entropy (Basel)
Shan J, Xia S, Jin Q.
europepmc   +1 more source

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A more general exergy function and its application to the definition of exergy efficiency

Energy, 2015
Abstract An availability function which includes the usual functions exergy and flow exergy as special cases is defined and called exergy. The new definition of exergy is based on the concept of pressure energy, namely the work that must be done on a stationary external pressure field to build inside it the region of space occupied by the system ...
Enzo Zanchini
exaly   +4 more sources

On Intrinsic Exergy Efficiency and Heat Pumps

Chemical Engineering Research and Design, 2000
Exergy analysis provides an assessment of the degree of thermodynamic perfection of a process. Several exergy efficiency definitions have been proposed among which is the intrinsic efficiency which is based on the concept of transiting exergy. This method of analysis has been applied to absorption heat pumps and the results are presented.
Jalel Labidi
exaly   +2 more sources

Primary exergy efficiency—Effect of system efficiency environment to benefits of exergy savings

Energy and Buildings, 2016
Abstract Improving energetic performance is a key factor in making societies more sustainable. One way to analyze energetic performance is to use methods based on the second law of thermodynamics. Exergy analysis is such a method. With exergy analysis thermodynamic losses of the studied system can be found.
Kohl, Thomas, Järvinen, Mika, Ahtila, Pekka, Laukkanen, Timo   +4 more
openaire   +5 more sources

Efficiencies of exergy transductions

Applied Energy, 1980
Abstract Exergy is conserved in thermodynamically reversible heat engines and heat pumps. Using a reversible heat engine to stimulate a reversible heat pump, available power and exergy may be exchanged, the total amount of exergy being conserved. For such a combined system, either more heat may be released at a lower temperature or energy may be ...
Mohey Hussein, R.J. Wood, P.W. O'Callaghan, S.D. Probert   +3 more
openaire   +1 more source

Exergy efficiency and conversion of chemical reactions

Energy Conversion and Management, 1998
An exergy analysis of the ammonia oxidation in nitrous oxide has been performed using alternatively the conventional second law efficiency and the more recently proposed intrinsic exergy efficiency. It is shown that the second law efficiency does not account for the conversion effect on the overall performance of a chemical system while the intrinsic ...
M. Sorin, J.-C. Bonhivers, J. Paris
openaire   +2 more sources

Energy and Exergy Efficiencies

2012
Energy and exergy efficiencies are considered to be useful for the assessment of energy conversion systems and for improved performance. By considering both of these efficiencies, the quality and quantity of the energy used to achieve a given objective is properly accounted for, and the degree to which efficient and effective use of energy resources is
Mehmet Kanoğlu, Yunus A. Çengel, İbrahim Dinçer   +2 more
openaire   +1 more source