Results 91 to 100 of about 432,284 (250)

Diesel engine catalytic combustor system [PDF]

, 1984
A low compression turbocharged diesel engine is provided in which the turbocharger can be operated independently of the engine to power auxiliary equipment.
Ream, L. W.
core   +1 more source

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Revisiting Endoreversible Carnot Engine: Extending the Yvon Engine

Entropy
Curzon and Ahlborn’s 1975 paper, a pioneering work that inspired the birth of the field of finite-time thermodynamics, unveiled the efficiency at maximum power (EMP) of the endoreversible Carnot heat engine, now commonly referred to as the Curzon–Ahlborn
Xiu-Hua Zhao, Yu-Han Ma
doaj   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Information Arbitrage in Bipartite Heat Engines

Physical Review X
Heat engines and information engines have each historically served as motivating examples for the development of thermodynamics. While these two types of systems are typically thought of as two separate kinds of machines, recent empirical studies of ...
Matthew P. Leighton, Jannik Ehrich, David A. Sivak   +2 more
doaj   +1 more source

On the operation of machines powered by quantum non-thermal baths

New Journal of Physics, 2016
Diverse models of engines energised by quantum-coherent, hence non-thermal, baths allow the engine efficiency to transgress the standard thermodynamic Carnot bound. These transgressions call for an elucidation of the underlying mechanisms.
Wolfgang Niedenzu, David Gelbwaser-Klimovsky, Abraham G Kofman, Gershon Kurizki   +3 more
doaj   +1 more source

Effects of Degree of Superheat on the Running Performance of an Organic Rankine Cycle (ORC) Waste Heat Recovery System for Diesel Engines under Various Operating Conditions

Energies, 2014
This study analyzed the variation law of engine exhaust energy under various operating conditions to improve the thermal efficiency and fuel economy of diesel engines. An organic Rankine cycle (ORC) waste heat recovery system with internal heat exchanger
Kai Yang, Hongguang Zhang, Songsong Song, Fubin Yang, Hao Liu, Guangyao Zhao, Jian Zhang, Baofeng Yao   +7 more
doaj   +1 more source

Quantum Otto heat engine with Pöschl-Teller potential in contact with coherent thermal bath. [PDF]

Sci Rep, 2023
Abasabadi SH, Mirafzali SY, Baghshahi HR.   +2 more
europepmc   +1 more source

Experimentally-determined external heat loss of automotive gas turbine engine [PDF]

An external heat balance was conducted on a 150 HP two-shaft automotive gas turbine engine. The engine was enclosed in a calorimeter box and the temperature change of cooling air passing through the box was measured.
Meng, P. R., Wulf, R. F.
core   +1 more source

Quantum mechanical bound for efficiency of quantum Otto heat engine

, 2019
The second law of thermodynamics constrains that the efficiency of heat engines, classical or quantum, cannot be greater than the universal Carnot efficiency.
Chun, Hyun-Myung, Lee, Sangyun, Noh, Jae Dong, Park, Jong-Min   +3 more
core   +1 more source