Results 11 to 20 of about 332,294 (361)

On Maximum Evaporation Rates of Liquid Droplets in Rocket Motors [PDF]

, 1953
Upper limits have been estimated for the rate of evaporation of small liquid droplets in representative rocket combustion chambers. The droplets are assumed to be isothermal at all times. The droplet temperature as a function of time is determined by an
Penner, S. S.
core   +1 more source

Development of Correlations for Windage Power Losses Modeling in an Axial Flux Permanent Magnet Synchronous Machine with Geometrical Features of the Magnets

Energies, 2016
In this paper, a set of correlations for the windage power losses in a 4 kW axial flux permanent magnet synchronous machine (AFPMSM) is presented. In order to have an efficient machine, it is necessary to optimize the total electromagnetic and mechanical
Alireza Rasekh, Peter Sergeant, Jan Vierendeels   +2 more
doaj   +1 more source

On the Procedure of Draught Rate Assessment in Indoor Spaces

Applied Sciences, 2020
The objective of the paper is to demonstrate the importance of the unsteady Computational Fluid Dynamics (CFD) simulations and long-term measurements for the reliable assessment of thermal comfort indoors, for proper categorization of the indoor thermal ...
Detelin Markov, Nikolay Ivanov, George Pichurov, Marina Zasimova, Peter Stankov, Evgueni Smirnov, Iskra Simova, Vladimir Ris, Radostina A. Angelova, Rositsa Velichkova   +9 more
doaj   +1 more source

Visualization of the homogeneous charge compression ignition/controlled autoignition combustion process using two-dimensional planar laser-induced fluorescence imaging of formaldehyde [PDF]

, 2003
The paper reports an investigation into the HCCI/CAI combustion process using the two-dimensional PLIF technique. The PLIF of formaldehyde formed during the low-temperature reactions of HCCI/CAI combustion was exciting by a tunable dye laser at 355nm ...
Bäuerle B., H Zhao, N Ladommatos, Z Peng   +3 more
core   +1 more source

Numerical Investigation of the Effect of Tower Dam and Rotor Misalignment on Performance and Loads of a Large Wind Turbine in the Atmospheric Boundary Layer

Energies, 2019
A modern horizontal axis wind turbine was simulated by means of computational fluid dynamics (CFD) simulations. The analyzed machine has a diameter of 100 m and is immersed in the atmospheric boundary layer (ABL).
Gilberto Santo, Mathijs Peeters, Wim Van Paepegem, Joris Degroote   +3 more
doaj   +1 more source

Study on Flow and Heat Transfer Characteristics of 25 kW Flameless Combustion in a Cylindrical Heat Exchanger for a Reforming Processor

Energies, 2023
Flameless combustion has advantages such as low pollution and uniform temperature in the combustion chamber, making it an excellent option for heat exchangers.
Ruiqi Zhu, Donghoon Shin
doaj   +1 more source

Review of Experimental Research on Supercritical and Transcritical Thermodynamic Cycles Designed for Heat Recovery Application

Applied Sciences, 2019
Supercritical operation is considered a main technique to achieve higher cycle efficiency in various thermodynamic systems. The present paper is a review of experimental investigations on supercritical operation considering both heat-to-upgraded heat and
Steven Lecompte, Erika Ntavou, Bertrand Tchanche, George Kosmadakis, Aditya Pillai, Dimitris Manolakos, Michel De Paepe   +6 more
doaj   +1 more source

Development and a Validation of a Charge Sensitive Organic Rankine Cycle (ORC) Simulation Tool

Energies, 2016
Despite the increasing interest in organic Rankine cycle (ORC) systems and the large number of cycle models proposed in the literature, charge-based ORC models are still almost absent.
Davide Ziviani, Brandon J. Woodland, Emeline Georges, Eckhard A. Groll, James E. Braun, W. Travis Horton, Martijn van den Broek, Michel De Paepe   +7 more
doaj   +1 more source

Quantitative analysis of heat transfer characteristics and advantages in opposed-piston 2-stroke diesel engines

Case Studies in Thermal Engineering, 2023
Opposed-piston 2-stroke diesel engines (OP2S) have lower combustion chamber surface-area-to-volume ratio, resulting in lower transfer loss but also excessive surface temperature.
Sufei Wang, Fujun Zhang
doaj   +1 more source

Combustion Heated Thermionic Systems

SAE Technical Paper Series, 1992
<div class="htmlview paragraph">Thermionic cogeneration is developing as a new energy conservation option. The characteristics of thermionic systems using combustion of natural gas as heat source are studied. The - until now unused - high temperature potential of fuels can be applied in order to extract work using the high temperature thermionic ...
Veltkamp, W.B., Kemenade, van, H.P., Sampers, W.F.J.   +2 more
openaire   +2 more sources