Results 41 to 50 of about 1,569 (175)
Energy Science &Engineering, EarlyView.A novel cascade nanofluid‐based PV/T–TEG hybrid system (CS4) achieves 81.1% thermal and 18.75% exergy efficiency while cutting CO₂ emissions by 7.8 tons year⁻¹. The system delivers superior energy performance, economic savings, and environmental benefits, offering a sustainable pathway for next‐generation solar energy applications.
Abdelhak Lekbir +4 more
wiley +1 more source
Regarding the application limitations of the Carnot, s theorem
Известия высших учебных заведений: Проблемы энергетики, 2019 The purpose of this article is to perform a comparative study of a reversible heat engine with an ideal or real gas as a working fluid and to determine the change in its efficiency depending on the thermodynamic characteristics of the working fluid.
V. G. Kiselev
doaj +1 more source
Are West African Heat‐Lows Analogous to Dry Tropical Cyclones?
International Journal of Climatology, EarlyView.Heat‐lows qualitatively resemble dry tropical cyclones (TCs), though their underlying physics has yet to be compared. In this study, we show that West African transient heat‐low climatology correlates well with TC potential intensity generalised over land.
Aaron Kruskie +2 more
wiley +1 more source
Approaching an Efficient and Feasible Carnot Engine by Carnot Cycle Analysis
Journal of Energy Research and Reviews, 2021 Based on the knowledge exhibited in the literature on the Carnot cycle, a preliminary study is carried out on Carnot machines capable of implementing the Carnot cycle at high thermal efficiency. Therefore, two engine structures are proposed: (i) reciprocating single and double-acting cylinder-based thermal engines implemented under a closed processes ...
openaire +2 more sources
ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.Thermal charging cells (TCS) face two main challenges that limit their practical applications: 1) Still lacking the systems suitable for operation under higher temperature environments, and 2) there are limitations in the self‐sustaining performance of continuous discharge under temperature differences, which holds critical significance for the real ...
Tingting Meng, Yimin Xuan, Yunjie Xiong
wiley +1 more source
Effect of Machine Entropy Production on the Optimal Performance of a Refrigerator
Entropy, 2020 The need for cooling is more and more important in current applications, as environmental constraints become more and more restrictive. Therefore, the optimization of reverse cycle machines is currently required.
Michel Feidt, Monica Costea
doaj +1 more source
New Phytologist, Volume 250, Issue 4, Page 2516-2534, May 2026.Summary Acclimation enables plants to adjust to immediate environmental fluctuations and is therefore key to the resilience of plant disease resistance in a time of climate change. Here, we report on the acclimation of Arabidopsis thaliana quantitative immune responses against the fungal pathogen Sclerotinia sclerotiorum to daily environmental ...
Marie Didelon +6 more
wiley +1 more source
Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators
Advanced Materials Technologies, Volume 11, Issue 8, 17 April 2026.Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks +2 more
wiley +1 more source
Attaining Carnot efficiency with quantum and nanoscale heat engines
npj Quantum Information, 2021 A heat engine operating in the one-shot finite-size regime, where systems composed of a small number of quantum particles interact with hot and cold baths and are restricted to one-shot measurements, delivers fluctuating work.
Mohit Lal Bera +2 more
doaj +1 more source
Energy Technology, Volume 14, Issue 4, April 2026.This article provides a comprehensive review of loss mechanisms in the generation stage of energy systems, covering fossil, nuclear, and renewable technologies. It examines their environmental and operational implications and shows how overlooking generation losses distorts efficiency assessments.
Pooya Parvizi +4 more
wiley +1 more source