Results 171 to 180 of about 3,219,487 (379)

Numerical investigation of thermal soak within engine bay using lattice Boltzmann method

Scientific Reports
A large amount of heat accumulates in the engine bay for a short time after the engine runs at high load and shuts down, that will lead to thermal damage and thermal fatigue caused by the temperature rise of some heat sensitive components.
Zhenhai Gao, Yang Yang, Xingjun Hu, Jingyu Wang, Peng Guo, Luwei Wang   +5 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

The Carnot Cycle and Heat Engine Fundamentals and Applications II. [PDF]

Entropy (Basel), 2022
Feidt M.
europepmc   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

Advanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi, Prayag Burad, Piash Bhowmik, Vishal Mahey, Yashwanth Bandari, Sougata Roy   +5 more
wiley   +1 more source

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

Kinetic energy generation in heat engines and heat pumps: the relationship between surface pressure, temperature and circulation cell size

Tellus: Series A, Dynamic Meteorology and Oceanography, 2017
The pattern and size of the Earth’s atmospheric circulation cells determine regional climates and challenge theorists. Here the authors present a theoretical framework that relates the size of meridional cells to the kinetic energy generation within them.
A.M. Makarieva, V.G. Gorshkov, A.V. Nefiodov, D. Sheil, A.D. Nobre, P.L. Shearman, B.-L. Li   +6 more
doaj   +1 more source

Four-Objective Optimization of an Irreversible Stirling Heat Engine with Linear Phenomenological Heat-Transfer Law. [PDF]

Entropy (Basel), 2022
Xu H, Chen L, Ge Y, Feng H.
europepmc   +1 more source

Additive Manufacturing of Hot Work Tool Steel by Laser Powder Bed Fusion Utilizing Powder Mixtures Including Grinding Chips: Assessing Chemical Homogeneity and Achievable Hardness

Advanced Engineering Materials, EarlyView.
Grinding chips of high‐alloyed steel are prepared to be admixed to a starting powder mixture for laser powder bed fusion. A three‐stage preparation is performed, including washing in acetone, magnetic separation, and ball milling. The addition of 30% of grinding chips to the powder mixture allows the fabrication of dense samples.
Felix Großwendt, Chengsong Cui, Jonathan Lentz, Rainer Fechte‐Heinen, Sebastian Weber   +4 more
wiley   +1 more source

Studies on exhaust gas recycling and waste heat recovery for the Z12V190 diesel engine

Kuwait Journal of Science, 2015
The Z12V190 diesel engine has high fuel consumption and low thermal efficiency, and releaseslarge amounts of diesel exhaust gas and waste heat into the atmosphere. This causes hugeresource as well as energy waste.
HOU XUEJUN, H.A. NASR-EI-DIN, LIANG QIMIN, GAO LONGZHU   +3 more
doaj  

Realization of a coupled-mode heat engine with cavity-mediated nanoresonators. [PDF]

Sci Adv, 2021
Sheng J, Yang C, Wu H.
europepmc   +1 more source