Results 1 to 10 of about 205,405 (361)
Rekayasa Mesin, 2022 The six-stroke combustion engine is a refinement of the four-stroke machine by adding two strokes of the four-stroke combustion engine. The two steps in question are the second compression stroke and the second expansion stroke.
Elandi Elandi +2 more
doaj +2 more sources
2-Stroke RCCI Engines for Passenger Cars [PDF]
Energies, 2022 Reactivity Controlled Compression Ignition (RCCI) is one of the most promising solutions among the low temperature combustion concepts, in terms of thermal efficiency and pollutant emissions.
Enrico Mattarelli +5 more
doaj +2 more sources
Single-cylinder 125 cc Stepped-piston Engine for Mobility and Portable Power Generation Applications [PDF]
International Journal of Technology, 2016 Two-stroke engines are far simpler than four-stroke engines from a physical perspective. For a given brake output, two-stroke engines are lighter, easier to work on, and provide higher power-to-weight ratio than four-stroke engines, making them ...
Azhar Abdul Aziz +4 more
doaj +4 more sources
Measurement driven single temperature engine [PDF]
Phys. Rev. E 98, 042122 (2018), 2018 A four stroke quantum engine which alternately interacts with a measurement apparatus and a single heat bath is discussed in detail with respect to the average work and heat as well as to the fluctuations of work and heat. The efficiency and the reliability of such an engine with a harmonic oscillator as working substance are analyzed under different ...
Ding, Xuehao +3 more
arxiv +3 more sources
Non-Markovian thermal operations boosting the performance of quantum heat engines [PDF]
Phys. Rev. E 106, 014114 (2022), 2022 It is investigated whether non-Markovianity, i.e., the memory effects resulting from the coupling of the system to its environment, can be beneficial for the performance of quantum heat engines. Specifically, two physical models are considered. The first one is a well known single-qubit Otto engine; the non-Markovian behaviour is there implemented by ...
Ptaszyński, K.
arxiv +3 more sources
Stroboscopic two-stroke quantum heat engines [PDF]
Phys. Rev. A 102, 042217 (2020), 2020 The formulation of models describing quantum versions of heat engines plays an important role in the quest toward establishing the laws of thermodynamics in the quantum regime. Of particular importance is the description of stroke-based engines which can operate at finite-time.
Otavio A. D. Molitor, Gabriel T. Landi
arxiv +5 more sources
Catalytic enhancement in the performance of the microscopic two-stroke heat engine [PDF]
Phys. Rev. E 110, 044120 (2024)We consider a model of heat engine operating in the microscopic regime: the two-stroke engine. It produces work and exchanges heat in two discrete strokes that are separated in time. The working body of the engine consists of two $d$-level systems initialized in thermal states at two distinct temperatures.
Biswas, Tanmoy +3 more
arxiv +3 more sources
Energies, 2022 Two-stroke engines have higher power density than traditional four-stroke engines, and therefore are suitable for engine downsizing. In this work, a four-stroke single-cylinder diesel engine is modified for two-stroke operation, and the combustion system
Yaozong Li +9 more
doaj +1 more source
Predictive and diagnosis models of stroke from hemodynamic signal monitoring [PDF]
Medical & Biological Engineering & Computing, 59(6), pp. 1325-1337
(2021), 2023 This work presents a novel and promising approach to the clinical management of acute stroke. Using machine learning techniques, our research has succeeded in developing accurate diagnosis and prediction real-time models from hemodynamic data. These models are able to diagnose stroke subtype with 30 minutes of monitoring, to predict the exitus during ...
arxiv +1 more source
Modifications for Conversion of Conventional Four Stroke Engine to a Six Stroke Engine [PDF]
International Journal of Trend in Scientific Research and Development, 2018 Considering the climate change and the shortage of non renewable energy resources, the interests in the waste heat recovery from internal combustion engines is one of the opportunities for economizing of energy consumption. In an internal combustion engine, a great amount of fuel energy is wasted in the form of heat due to thermal limitations.
Myo Thura, Sandar Aung
openaire +1 more source