Results 11 to 20 of about 47,254 (254)
Evaluation of Liner Cavitation Potential through Piston Slap and BEM Acoustics Coupled Analysis
Mathematics, 2022 Internal combustion engines take up the major position in the power facility market and still encounter some challenges; one key issue is liner cavitation erosion. The impact vibration between piston and cylinder generates pressure fluctuation on the wet
Xiaoyu Wang +5 more
doaj +1 more source
Cooling Cycle Optimization for a Vuilleumier Refrigerator
Entropy, 2021 Vuilleumier refrigerators are a special type of heat-driven cooling machines. Essentially, they operate by using heat from a hot bath to pump heat from a cold bath to an environment at intermediate temperatures.
Raphael Paul +3 more
doaj +1 more source
Engineering Applications of Computational Fluid Mechanics, 2020 With the gradual orderly opening of low-altitude areas and the increasing number of private aircraft, the general aviation industry has ushered in new opportunities for development. Ventilation and cooling optimization of the piston aeroengine has become
Hui Peng, Samira Mohammadinia
doaj +1 more source
Materials & Design, 2022 This study proposes an eco-friendly (ECO) mold that is fabricated using the laser powder bed fusion (LPBF) method, which utilizes a three-dimensional (3D) cooling channel. Unlike previous studies, we designed surface-type conformal cooling channels (CCC)
Woongbeom Heogh +10 more
doaj +1 more source
Service life of low-speed long-running stages of compressor units and possible ways of its increase [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019 The paper presents theoretical studies to increase the service life of piston seals made on the basis of fluoroplastic by changing the speed of movement of the piston and, accordingly, a more efficient cooling mode.
V. L. Yusha +5 more
doaj +1 more source
Optimization of a novel drive mechanism approaching the ideal cycle for beta type Stirling engines
Engineering Science and Technology, an International Journal, 2023 Stirling engines are capable in the renewable energy gain and the recovery of waste heat, both of which are important issues today. Existing studies revealed that the piston trajectories convergent to the Stirling cycle provide more power than ...
Erkan Öztürk
doaj +1 more source
Cancellation of the Heating Piston Effect by Convective Enhancement of a Cooling Piston Effect [PDF]
International Journal of Thermophysics, 1998 This work brings new insight to the question of the piston effect, which has been found to be the main cause of temperature equilibration in the vicinity of the liquid–vapor critical point under weightlessness conditions. The thermalization process of a near-critical fluid confined in a cavity and submitted to local heating is modeled with special ...
Jounet, Arnaud +3 more
openaire +3 more sources
Case Studies in Thermal Engineering, 2022 Piston cooling gallery plays a critical role in managing the temperature of the piston and its performance. This paper aims to study the effect of surface roughness on heat transfer coefficient (HTC) inside the cooling gallery.
Muhammad Hamza +2 more
doaj +1 more source
Instability in Shocked Granular Gases [PDF]
, 2013 Shocks in granular media, such as vertically oscillated beds, have been shown to develop instabilities. Similar jet formation has been observed in explosively dispersed granular media.
Falle, Sam +2 more
core +1 more source
Case Studies in Thermal Engineering, 2023 To further improve the thermal state of the piston for better thermal design, a multi-objective optimisation algorithm was used in this paper to find the best combination of design variables.
Yang Liu +5 more
doaj +1 more source