Results 61 to 70 of about 5,391 (179)

Energy Efficient Routes to Renewable Terephthalic Acid: Pathways Toward Sustainable Polyethylene Terephthalate, PET

open access: yesAdvanced Sustainable Systems, Volume 10, Issue 8, August 2026.
The graphical abstract illustrates how biomass‐derived feedstocks progress through multiple chemical pathways to produce PET precursors, terephthalic acid (TA) highlighting various thermochemical and catalytic routes. The figure visually links distinct conversion strategies to various PET end‐use applications, while the review provides a comprehensive ...
Udishnu Sanyal   +5 more
wiley   +1 more source

Photothermally Enhanced Hydrogel‐Based Thermoelectrochemical Cells for Stable, Passive Harvesting of Low‐Grade Heat

open access: yesAdvanced Energy Materials, Volume 16, Issue 29, 5 August 2026.
A photothermally enhanced hydrogel‐based thermoelectrochemical cell enables passive conversion of low‐grade heat and solar energy into electricity. The quasi‐solid device achieves high thermopower and stable long‐term operation under passive conditions.
Matteo Bevione   +2 more
wiley   +1 more source

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

open access: yesChemie 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   +2 more
wiley   +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

open access: yesEngineering 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   +3 more
wiley   +1 more source

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

open access: yesEngineering 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

Exergy Mapping of a UAV Through a Reconnaissance Flight Envelope

open access: yesHavacılık ve Uzay Teknolojileri Dergisi, 2022
In this study, exergy mapping of an unmanned aerial vehicle (UAV) is investigated during its reconnaissance flight. A turboprop UAV is selected for the application of the exergy of lift method covering a full flight envelope (from takeoff to landing) for
Yasin ŞÖHRET, Ali DİNÇ
doaj  

In-Depth Exergy Analysis of the Thermochemical Conversion of Flax Straw via Pyrolysis

open access: yesEng
Pyrolysis is a promising thermochemical conversion process for transforming biomass waste into valuable products like bio-oil, syngas, and biochar. Understanding the thermodynamic efficiency of this process is important for optimizing its design and ...
Aknur Temireyeva   +2 more
doaj   +1 more source

Exergy Analysis of Flat Plate Solar Collectors

open access: yesEntropy, 2014
This study proposes the concept of the local heat loss coefficient and examines the calculation method for the average heat loss coefficient and the average absorber plate temperature.
Zhong Ge   +4 more
doaj   +1 more source

Exergy analysis of a diesel methanol dual fuel engine with different regulatory strategies for meeting China VI emission regulations

open access: yesCase Studies in Thermal Engineering
To reveal the mechanism for high brake thermal efficiency (BTE) of diesel methanol dual fuel (DMDF) engine meeting China VI emission regulations without urea, experimental and computational methods were used to study the exergy distribution with ...
Baodong Ma   +3 more
doaj   +1 more source

Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer

open access: yesBuildings, 2015
To obtain a basic understanding of the resultant changes in the human body exergy balance (input, consumption, storage, and output) accompanying outdoor air temperature fluctuations, a “human body system and a built environmental system” coupled with ...
Koichi Isawa
doaj   +1 more source

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