Results 61 to 70 of about 328,337 (207)

Advanced exergy analysis of an aircraft gas turbine engine: Splitting exergy destructions into parts

Energy, 2015
Abstract Advanced exergy analysis of an aircraft gas turbine engine is presented in this paper. In this framework, the main exergy parameters of the engine components are introduced while the exergy destruction rates within the engine components are split into endogenous/exogenous and avoidable/unavoidable parts.
Şöhret, Yasin, Açıkkalp, Emin, Hepbasli, Arif, Karakoc, T. Hikmet   +3 more
openaire   +7 more sources

Rethinking Climate Change on the Role of Human Power Generation, Alternative Perspectives, Potential Solutions, and a Plea for Action

Chemie Ingenieur Technik, Volume 98, Issue 8, Page 514-524, August 2026.
All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau, Gerald Steiner, Tom Harwood   +2 more
wiley   +1 more source

Exergy analysis of a turbofan aircraft engine

, 2009
An exergy analysis is reported for a General Electric turbofan engine (the CF6-80) using sea-level data. The effects on exergy efficiencies and exergy destructions are investigated of modifying the isentropic efficiencies of turbomachinery components ...
Karakoç, Tahir Hikmet, Turgut, Enis Turhan, Karakoc, T. Hikmet, Rosen, Marc A., Hepbaşlı, Arif, Turgut, Enis T., Hepbasli, Arif   +6 more
core   +1 more source

MHD Heat Transfer Enhancement in TiO2‐Fe3O4/Water Hybrid Nanofluid Over a Porous Stretching/Shrinking Surface With Suction/Injection and Heat Source Effects

Engineering Reports, Volume 8, Issue 8, August 2026.
Magnetohydrodynamic flow of TiO2‐Fe3O4/water hybrid nanofluid over a porous stretching/shrinking surface enhances heat transfer under Joule heating and radiation effects. Thermal performance improves with nanoparticle concentration and Eckert number, while suction reduces heat transport, highlighting its potential for advanced industrial cooling ...
K. Govardhan, S. Renuka, V. Meenakshi, G. Narender   +3 more
wiley   +1 more source

Design and Dynamic Response Characteristics Analysis of Hydrogen Fuel Cell Ship Combined Cooling and Power Supply System

Engineering Reports, Volume 8, Issue 8, August 2026.
An integrated hybrid energy storage and cogeneration system with CE‐DPS effectively stabilizes DC bus voltage in hydrogen fuel cell marine vessels. The proposed multi‐tier control suppresses voltage fluctuations, eliminates overshoot, and improves energy efficiency, achieving 68% exergy efficiency and 15.6% fuel savings.
Jingsi Hu, Feng Chen, Zhaoliang Zang
wiley   +1 more source

Environmental Thermoeconomic Performance Analysis of Gas Steam Combined Cycle With Different Inlet Air Cooling Technologies

Energy Science &Engineering, Volume 14, Issue 8, Page 3638-3655, August 2026.
This study establishes an environmental thermoeconomic cost model to investigate the impact of two IAC technologies on the performance of a GSCC from three aspects of energy, economy, and environment. Under arid climate conditions, the SEC technology demonstrates superior performance in terms of cost‐effectiveness and environmental impact.
Zhen Wang, Li Zhang, Yu Ni, Liqiang Duan
wiley   +1 more source

Exergy Analysis of SI Engines

, 2008
In this study, exergy (availability) analysis of a Spark Ignition (SI) engine has been performed theoretically during compression, combustion and expansion processes of the engine cycle.
Bilgin, Atilla, Sezer, İsmet
core   +1 more source

Experimental Thermal Performance Investigation of Nontracking Multiple Parabolic Trough Collector With a Single Absorber

Energy Science &Engineering, Volume 14, Issue 8, Page 3584-3607, August 2026.
With a mass flow rate of 0.3 kg/min, a direct solar radiation of 770.25 W/m2, and a global solar radiation of 915.25 W/m2, the maximum outlet water temperature was 63.3°C, the maximum instantaneous efficiency was 51.78%, and the average heat gain was found between 69.81 and 206.88 W, depending on mass flow rate and direct solar radiation.
Md. Akib Ul Islam, Golam Sharoar Fahim, Maruf Amin Sabbir, Nahyan Ahnaf Pratik, Md. Mahmodul Alam, Md. Hasan Ali   +5 more
wiley   +1 more source

Exergy destruction within a centrifugal water pump

European Journal of Mechanics - B/Fluids
Understanding the loss generation mechanisms in water pumps is a vital step in decarbonising our built environment, and achieve sustainable cities and communities.
Jonathan Highgate, Esra Sorguven, Sevil Incir   +2 more
openaire   +2 more sources

Designing a Sustainable Organic Rankine Cycle for Remote Geothermal Heat Sources in Pakistan

Materials Proceedings
This paper discusses a thorough analysis, as well as the design, of an environmentally friendly, single-stage Organic Rankine Cycle (ORC) system, particularly optimized for untapped geothermal applications in Pakistan that are secluded and off-grid, to ...
Muhammad Shoaib Ijaz, Marig Shabbir Ansari, Aftab Sabghatullah, Intesar Alam, Muhammad Qasim Zafar   +4 more
doaj   +1 more source