Results 111 to 120 of about 1,875 (255)

The potential hazard of staphylococci and micrococci to human subjects in a life support systems evaluator while on a simulated GT-7 mission Final report, 19 Sep. - 1 Nov. 1965 [PDF]

Potential hazard of staphylococci and micrococci to human subjects in life support ...
Horstman, B. S., Lotter, L. P.
core   +1 more source

SSME fuelside preburner two-dimensional analysis [PDF]

The flow field within the fuelside preburner of the Space Shuttle Main Engine is calculated using a reacting flow code (REACT2D). Inlet and modeling parameters involved in the numerical calculation are systematically varied to establish the sensitivity ...
Claus, R. W., Vanoverbeke, T. J.
core   +1 more source

The role for Federal R & D on alternative automotive power systems [PDF]

, 1974
Report submitted to the Office of Energy R & D Policy, National Science ...
Heywood, John Benjamin, Jacoby, Henry D., Linden, Lawrence Howard   +2 more
core  

Screening analysis and selection of emission reduction concepts for intermittent combustion aircraft engines [PDF]

An analysis was conducted to screen, evaluate, and select three engine exhaust emission reduction concepts from a group of 14 candidate alternatives. A comprehensive literature search was conducted to survey the emission reduction technology state-of-the-
Meyers, J. E., Rezy, B. J., Stuckas, S. J., Tucker, J. R.   +3 more
core   +1 more source

A Novel Modeling Approach for Plastics Melting within a CFD-DEM Framework. [PDF]

Polymers (Basel), 2021
Celik A, Bonten C, Togni R, Kloss C, Goniva C.   +4 more
europepmc   +1 more source

Development of a Refined Model for a Rapid Compression and Expansion Machine with Pre-Chamber Applied to Study the Effects of Pre-Chamber Geometry and Hydrogen Enrichment on Combustion and Extinction of Methane/Air Flames

Energies
In this paper, experimental and numerical analyses are performed with a Rapid Compression and Expansion Machine (RCEM) equipped with a passive pre-chamber (PC) and fueled with premixed stoichiometric air/methane mixture to replicate engine-like ...
Fabio Bozza, Luigi Teodosio, Emanuele Ugliano, Ratnak Sok, Enrica Malfi, Jin Kusaka   +5 more
doaj   +1 more source

Performance tests of a single-cylinder compression-ignition engine with a displacer piston [PDF]

Engine performance was investigated using a rectangular displacer on the piston crown to cause a forced air flow in a vertical-disk combustion chamber of a single-cylinder, 4-stroke-cycle compression-ignition engine.
Foster, H H, Moore, C S
core   +1 more source

Experimental Study of Ignition Characteristics in Oblique-Injected Annular Combustors Using a Pre-Chamber Ignition System

Aerospace Research Communications
In this work, a pre-chamber ignition system is used to initiate the ignition in a premixed oblique-injected annular combustor. Although the introduction of the oblique-injecting burner in the gas turbine improved the gyratory flow motion and flow ...
Haroun Hassan, Haroun Hassan, Chenghao Qian, Hui Wang, Jinxiang Zhu, Haiwen Ge, Elsayed Barakat, Elsayed Barakat, Elsayed Barakat, Gaofeng Wang   +9 more
doaj   +1 more source

Numerical investigation on turbulent flame jet characteristics of ultra-lean H2/air ignited by pre-chamber enrichment strategy

Energy Conversion and Management: X
Pre-chamber enrichment for igniting ultra-lean premixed H2/air is an effective strategy for achieving ultra-low emission and improved fuel economy. This study employed a three-dimensional numerical simulation based on a constant volume combustion chamber
Wenchao Zhu, Xuanrui Zhang, Mingkun Zhang, Shuo Yin, Xianrong Wu, Wuqiang Long, Xiangyu Meng   +6 more
doaj   +1 more source

The role of shuntography in diagnosis of mechanic complications after implantation of ventriculoperitoneal shunts in patients with idiopathic normal pressure hydrocephalus: a retrospective clinical evaluation. [PDF]

Neuroradiology, 2022
Rot S, Goelz L, Arndt H, Gutowski P, Meier U, Lemcke J.   +5 more
europepmc   +1 more source