Showing 1 - 10 of 84
singular spectrum analysis (SSA) to forecast the consumption of conventional energy in India. Grey-Markov model has been … utilities) consumption and SSA to predict natural gas consumption. The models for each time series has been selected by …
Persistent link: https://www.econbiz.de/10010809373
Variable-speed drives in any machine provide an accurate control and high-energy efficiency. More and more often …. The paper aims to achieve accurate efficiency estimation by presenting a new modified calculation method to predict the …
Persistent link: https://www.econbiz.de/10010906838
and thermal efficiencies for these cycles was performed. The findings demonstrated that the highest thermal efficiency was … achieved using the recompression Brayton cycle, at June noontime. The maximum integrated system thermal efficiency using this … cycle was 40% while the maximum thermal efficiency of this cycle alone was 52%. The regenerative Brayton cycle, although …
Persistent link: https://www.econbiz.de/10011209443
The present study is concerned with the exergoeconomic performance analysis of a storage-type electrical water heater, being subjected to two volumes of hot water removals at 5 L/min; the first one immediately after the heating of water in the tank, and the second, after some time has been...
Persistent link: https://www.econbiz.de/10011264418
motors efficiency as one of the greatest energy consumption apparatuses in the world. Induction motors constitute, by far … powerful candidate with growing market are investigated in some details. The motor opportunities like high efficiency, high …
Persistent link: https://www.econbiz.de/10010807313
the second law efficiency of the device by 50% points, corresponding to a 3.8% point increase in thermal efficiency. …
Persistent link: https://www.econbiz.de/10010807350
This work compares two classes of exergy efficiency definitions and applies them on a simple process (i.e. PRICO) for … efficiency definitions already proposed in the literature. In addition, the paper highlights the importance of decomposing the …
Persistent link: https://www.econbiz.de/10010807458
Hydrogen demand as an energy currency is anticipated to rise significantly in the future, with the emergence of a hydrogen economy. Hydrogen production is a key component of a hydrogen economy. Several production processes are commercially available, while others are under development including...
Persistent link: https://www.econbiz.de/10010807569
and use of energy and exergy based performance criteria, and of the Second Law efficiency, with an aim at the advancement …
Persistent link: https://www.econbiz.de/10010807607
in detail. The effects of some main parameters on the exergy destruction and exergy efficiency of the cycle are … cooling along with evaporative aftercooling has an obvious increase in the energy and exergy efficiency compared to the basic … gas turbine cycle cogeneration. It is further shown that the first-law efficiency, power to heat ratio and exergy …
Persistent link: https://www.econbiz.de/10010807748