Contribution to a Life Cycle Exergy Analysis of Heat Pumps with Various Evaporator Sources.
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The paper reviews various representations of exergy and exergy losses in energy systems going from simple heat exchanger (heat transfer, dissipation and embedded exergy) to the exergy of full energy systems from fossil or non fossil resources (including th ...
This report presents a study of an enthalpy and exergy analysis in the framework of a district scale energy balance. Energy demand (heating, cooling and lighting) for buildings represents more than 30 % of the total worlds energy use. Main efforts have been ...
Nowadays, one of the main alternatives for a more rational use of energy in heating applications is the heat pumping technologies. The market is dominated by two kinds of heat pump systems: the electrically driven vapor compression heat pumps (EHP), which ...
This project proposes a method based on exergy analysis for considering energy efficiency problems. Because exergy is not a concept frequently used by industrials attention has been paid to go through what is exergy and how it can be so useful to enhance t ...
Single-emulsion toluene oil droplets (femtoliter) containing a hydrophobic redox probe that are dispersed in water stochastically collide with an ultramicroelectrode (UME). The fast-scan cyclic voltammetry (FSCV) or Fourier-transformed sinusoidal voltammet ...
During continuous operation of energy systems, the performance of components will mostly, gradually deviate away from the reference conditions due to performance degradation, which may eventually lead to malfunctions or operation failure. The complex inter ...
Reducing primary energy consumption by utilizing heat recovery systems has become increasingly important in industry. In many sectors, heating and cooling is required at different temperature levels at the same time. For this purpose, heat pumps are highly ...
This project proposes a method based on exergy analysis for considering energy efficiency problems. Because exergy is not a concept frequently used by industrials attention has been paid to go through what is exergy and how it can be so useful to enhance t ...
Using an exergy based indicator is highly desirable to compare future national energy strategies. A new web- based information platform called energyscope.ch, informing the general public on the Swiss energy transition was presented at ECOS2016. This paper ...
In the context of a semester project conducted at the LENI Lab at EPFL, a study on reactors integration and the effect of the operating conditions of the reactor and the reaction, on the T-H profile was carried out with the help of an Exergy Analysis. At t ...