Results 31 to 40 of about 3,219,487 (379)
Copper water heat pipe applied for Stirling engine
Brazilian Journal of Radiation Sciences, 2022 Power generation in remote locations requires the advancement of efficient and long-lasting power generation technologies. One possible solution is a microreactor, which uses heat pipes to transport fission heat from a nuclear source to Stirling engines ...
Ana Carolina Santos +2 more
doaj +1 more source
RSC Advances, 2023 In the present analysis, we study the energy transference through engine oil-based Prandtl–Eyring nanofluid flow through a heated stretching surface. The nanofluid is prepared by adding copper (Cu) and titanium dioxide (TiO2) nanoparticles (NPs) to the ...
Z. Shah, M. Rooman, Meshal Shutaywi
semanticscholar +1 more source
Optimal operation of a three-level quantum heat engine and universal nature of efficiency [PDF]
Physical Review Research, 2020 We present a detailed study of a three-level quantum heat engine operating at maximum efficient power function, a trade-off objective function defined by the product of the efficiency and power output of the engine. First, for near equilibrium conditions,
Varinder Singh
semanticscholar +1 more source
Methodology For Calculating Automotive Oil Radiator
Сельскохозяйственные машины и технологии, 2022 The paper highlights the relevance of the problem of determining the amount of heat supplied by an internal combustion engine to a liquid cooling system when creating typical series of unified heat exchangers for tractor and combine engines (power units).
E. P. Parlyuk, A. V. Kurilenko
doaj +1 more source
Optimization of an active heat engine [PDF]
Physical Review E, 2021 Optimisation of heat engines at the micro-scale has applications in biological and artificial nano-technology, and stimulates theoretical research in non-equilibrium statistical physics. Here we consider non-interacting overdamped particles confined by an external harmonic potential, in contact either with a thermal reservoir or with a stochastic self ...
Gronchi G, Puglisi A
openaire +3 more sources
Geometrical formulation of adiabatic pumping as a heat engine [PDF]
, 2020 We investigate a heat engine under an adiabatic (Thouless) pumping process. In this process, the extracted work and lower bound on dissipated availability are characterized by a vector potential and a Riemannian metric, respectively.
Y. Hino, H. Hayakawa
semanticscholar +1 more source
Autonomous circular heat engine [PDF]
Physical Review E, 2022 A dynamical model of a highly efficient heat engine is proposed, where an applied temperature difference maintains the motion of particles around the circuit consisting of two asymmetric narrow channels, in one of which the current flows against the applied thermodynamic forces.
Giuliano Benenti +3 more
openaire +6 more sources
Performance of Curzon-Ahlborn engine along with its engine speed and compression ratio
Journal of Thermal Science and Technology, 2019 We evaluated the ideal limits of performance (power and efficiency) of heat engines operated with external heat sources along with their engine speed and compression ratio, using the method of adjoint equations based on variational principle. It is known
Shinji KOJIMA
doaj +1 more source
Experimental characterization of autonomous heat engine based on minimal dynamical-system model
Physical Review Research, 2020 The autonomous heat engine is a model system of autonomous nonequilibrium systems, exploiting nonequilibrium flow for operations. As the Carnot engine has essentially contributed to the equilibrium thermodynamics, an autonomous heat engine is expected to
Shoichi Toyabe, Yuki Izumida
doaj +1 more source
Single Gyrotropic Particle as a Heat Engine [PDF]
, 2020 We demonstrate that the system composed of a gyrotropic particle out of thermal equilibrium with vacuum can be regarded as a heat engine. Such a particle, initially at rest, will experience a fluctuation-induced torque and start to rotate, producing ...
Yu Guo, S. Fan
semanticscholar +1 more source