Results 131 to 140 of about 3,219,487 (379)
Fundamental Efficiency Bounds for the Conversion of a Radiative Heat Engine’s Own Emission into Work
, 2019 Undergraduate coursework familiarizes us with heat engines---but not like these. This study identifies an innovative type of radiative heat engine and derives its fundamental efficiency and power bounds.
Andreas Pusch +4 more
semanticscholar +1 more source
Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study
Advanced Engineering Materials, EarlyView.Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji +5 more
wiley +1 more source
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 +7 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello +5 more
wiley +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 +3 more
core +1 more source
Optimization of a Thermoacoustic Engine with a Complex Heat Transfer Exponent
Entropy, 2003 : Heat transfer between a thermoacoustic engine and its surrounding heat reservoirs can be out of phase with oscillating working gas temperature. The paper presents a generalized heat transfer model using a complex heat transfer exponent.
Lingen Chen +4 more
doaj +1 more source
Thermoelectric properties of an interacting quantum dot based heat engine [PDF]
, 2017 We study the thermoelectric properties and heat-to-work conversion performance of an interacting, multi-level quantum dot (QD) weakly coupled to electronic reservoirs. We focus on the sequential tunneling regime.
P. A. Erdman +5 more
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.AlCrFeCoNi high entropy alloy coating is applied on steel using electrospark deposition. The microstructure evolution and phase transformation of the as‐deposited and heat‐treated coatings is characterized and discussed. Reduced microhardness and yield strength are measured after heat treatment.
Jihui Yan +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This work applies High‐Speed Nanoindentation to study multi‐material transitions in powder bed fusion–electron beam melting components. The aim is to assess the mechanical gradients and interfacial behavior between American iron and steel institute 316L stainless steel and V4E tool steel in additively manufactured structures.
Laia Ortiz‐Membrado +6 more
wiley +1 more source
A multipurpose information engine that can go beyond the Carnot limit
, 2016 Motivated by the recent work by Mandal and Jarzynski on autonomous Maxwell demon information engine, we have extended their model by introducing two different heat baths. The system (demon) is coupled to a memory register (tape) and a work source.
Jayannavar, A. M., Rana, Shubhashis
core +1 more source