Results 31 to 40 of about 4,154 (188)

Energy and exergy analysis of pulse detonation combustor and pulse detonation turbine engine cycle

open access: yesCase Studies in Thermal Engineering
As a kind of pressurized combustion, pulse detonation combustion brings many possibilities for the improvement of aero-engine performance.In this paper, energy and exergy analyses of pulse detonation combustor (PDC) and pulse detonation turbine engine ...
Zhiyi Xiao   +3 more
doaj   +1 more source

An energy and exergy analysis of photovoltaic system in Bantul Regency, Indonesia

open access: yesJournal of Mechatronics, Electrical Power, and Vehicular Technology, 2018
Energy and exergy analysis has been conducted on photovoltaic (PV) system in Bantul Regency, a special region of Yogyakarta, Indonesia. The PV exergy analysis was used to determine the performance of the PV system by considering environmental factors ...
Arif Rahman Hakim   +2 more
doaj   +1 more source

Potential contribution of biomass gasification‐based technology in energy transition: a technical review coupled with bibliometric studies

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Biomass gasification technology has been extensively researched around the world; however, there is a need to evaluate the current research landscape and evolutionary direction of research in the broader context of energy transition. A systematic bibliometric analysis of the Web of Science database was performed for articles that fall within ...
Olasunkanmi Opeoluwa Adeoye   +5 more
wiley   +1 more source

Exergy Efficiency Promotion for the System of CO2 Hydrogenation to Methanol in Habitable Confined Space

open access: yesFrontiers in Energy Research, 2021
Excess hydrogen and carbon dioxide will be produced during the operation of life support systems in the habitable confined space (HCS), and to eliminate the two excess gases by converting them into methanol is of great significance for maintenance of ...
Kai Xiong   +4 more
doaj   +1 more source

Exergy efficiency of ammonia production

open access: yes, 2018
© 2018 eceee and the authors, Stockholm. The chemical industry is responsible for roughly 6 % of global primary energy consumption and global greenhouse gas emissions, as well as a key fossil-fuel user (Cullen and Allwood 2010). Material and energy efficiency are the focus of industrial and policy decision-makers but are often pursued as separate ...
Michalakakis, Charalampos   +3 more
openaire   +2 more sources

An exergy approach to efficiency evaluation of desalination [PDF]

open access: yesApplied Physics Letters, 2017
This paper presents an evaluation process efficiency based on the consumption of primary energy for all types of practical desalination methods available hitherto. The conventional performance ratio has, thus far, been defined with respect to the consumption of derived energy, such as the electricity or steam, which are susceptible to the conversion ...
Kim Choon Ng   +3 more
openaire   +2 more sources

Tandem Electrolysers for High‐Efficiency CO2‐to‐Acetate Conversion Driven by Full‐Spectrum Solar Energy

open access: yesCarbon Energy, EarlyView.
A full‐spectrum solar‐driven tandem electrolysis system enables efficient CO2‐to‐acetate conversion by spectrally splitting sunlight and coupling high‐temperature SOEC CO2‐to‐CO electrolysis with ambient CO reduction. The integrated design achieves a solar‐to‐acetate efficiency of 15.8%, demonstrating effective energy‐quality matching for solar carbon ...
Shangchun Su   +8 more
wiley   +1 more source

Numerical Analysis and Optimization of a Continuous‐Flow pH‐TRC for Steady‐State Low‐Grade Waste Heat Recovery

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A steady‐state numerical model is established for a continuous‐flow pH‐TRC for low‐grade waste heat recovery. Based on carbonate and bicarbonate electrolytes, the influences of operating conditions and electrode structure on pH‐driven power generation are clarified.
Jinpeng Hu   +7 more
wiley   +1 more source

Exergy Analysis of a Ground-Coupled Heat Pump Heating System with Different Terminals

open access: yesEntropy, 2015
In order to evaluate and improve the performance of a ground-coupled heat pump (GCHP) heating system with radiant floors as terminals, an exergy analysis based on test results is performed in this study.
Xiao Chen, Xiaoli Hao
doaj   +1 more source

Conventional and Advanced Exergy Analyses of Industrial Pneumatic Systems

open access: yesEnergies, 2023
Pneumatic systems are widely used in industrial manufacturing sectors. However, the energy efficiency of pneumatic systems is generally much lower than their hydraulic and electric counterparts.
Zecheng Zhao   +4 more
doaj   +1 more source

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