Experimental Study on the Combustion Process in a Scramjet Combustor with a Rear-Wall-Expansion Geometry

2018 ◽  
Vol 31 (5) ◽  
pp. 04018077 ◽  
Author(s):  
Zun Cai ◽  
Xiaobin Zhu ◽  
Mingbo Sun ◽  
Zhenguo Wang
Keyword(s):  
Experimental Study ◽  
Combustion Process ◽  
Rear Wall ◽  
Scramjet Combustor

Experimental study on two oil supplies control schemes of scramjet combustor

Fuel ◽  
2021 ◽  
Vol 292 ◽  
pp. 120239
Author(s):  
Guiqian Jiao ◽  
Wenyan Song ◽  
Qiang Fu ◽  
Jianping Li ◽  
Pinxin Wu
Keyword(s):  
Experimental Study ◽  
Scramjet Combustor ◽  
Control Schemes

scholarly journals Biological activity of carbon nanoparticles produced in combustion process

2019 ◽  
Vol 179 (4) ◽  
pp. 269-273
Author(s):  
Jarosław KAŁUŻNY ◽  
Natalia IDASZEWSKA ◽  
Tomasz RUNKA ◽  
Adam PIASECKI ◽  
Marek NOWICKI ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Experimental Study ◽  
Carbon Nanoparticles ◽  
Dominant Role ◽  
Combustion Process ◽  
Industrial Applications ◽  
Carbon Allotropes ◽  
Air Purifier ◽  
Residential Space

In the recent years industrial applications of carbon allotropes such as carbon nanotubes (CNTs) and graphene have been tested extensively, thus justifying research on the environmental impact these materials have. In the current paper we compare EDS spectroscopy results of a cabin filter used in a car to a filter used in an air purifier inside a residential space. The contaminants adsorbed on the carbon nanoparticles trapped in both types of filters allows for determining of their source of origin demonstrating clearly the dominant role of non-road emissions in Poland. Finally we present the experimental study on the growth of plants on substrates intentionally enriched with CNTs.

Computational Analysis of Non-Premixed Combustion in a Scramjet Combustor With a Wedge Shaped Strut Injector

2021 ◽  
Author(s):  
Sajal Katare ◽  
Nagendra P. Yadav
Keyword(s):  
Computational Analysis ◽  
Static Pressure ◽  
Computational Study ◽  
Combustion Process ◽  
Combustion Efficiency ◽  
Reaction Model ◽  
Premixed Combustion ◽  
Cold Flow ◽  
Flame Holder ◽  
Scramjet Combustor

Abstract This paper focuses the computational study of non-premixed combustion in a scramjet combustor. The wedge shaped strut injector was used in the combustion process. In order to investigate the flame holding mechanism of the wedge shaped strut in supersonic flow, the two-dimensional coupled implicit RANS equations, the standard k-ε turbulence model and the finite-rate/eddy-dissipation reaction model are introduced to simulate the flow field of the hydrogen fueled scramjet combustor with a strut flame holder under different conditions. The static pressure of the case under the engine ignition condition is much higher than that of the case under the cold flow condition. The reflection of shock waves improves the mixing of hydrogen with the stream of inlet air and thus increases combustion efficiency. The mass flow rate of air is optimized for the best performance of engine.

Preliminary experimental study on solid-fuel rocket scramjet combustor

2017 ◽  
Vol 18 (2) ◽  
pp. 106-112 ◽  
Author(s):  
Zhong Lv ◽  
Zhi-xun Xia ◽  
Bing Liu ◽  
Li-ya Huang
Keyword(s):  
Experimental Study ◽  
Solid Fuel ◽  
Scramjet Combustor

scholarly journals Experimental study of multiple pilot injection strategy in an automotive direct injection diesel engine

2018 ◽  
Vol 234 ◽  
pp. 03007
Author(s):  
Plamen Punov ◽  
Tsvetomir Gechev ◽  
Svetoslav Mihalkov ◽  
Pierre Podevin ◽  
Dalibor Barta
Keyword(s):  
Experimental Study ◽  
Diesel Engine ◽  
Diesel Engines ◽  
Direct Injection ◽  
Combustion Process ◽  
Injection Timing ◽  
Pilot Injection ◽  
Injection Strategy ◽  
Direct Injection Diesel Engine ◽  
Rate Of Heat Release

The pilot injection strategy is a widely used approach for reducing the noise of the combustion process in direct injection diesel engines. In the last generation of automotive diesel engines up to several pilot injections could occur to better control the rate of heat release (ROHR) in the cylinder as well as the pollutant formation. However, determination of the timing and duration for each pilot injection needs to be precisely optimised. In this paper an experimental study of the pilot injection strategy was conducted on a direct injection diesel engine. Single and double pilot injection strategy was studied. The engine rated power is 100 kW at 4000 rpm while the rated torque is 320 Nm at 2000 rpm. An engine operating point determined by the rotation speed of 1400 rpm and torque of 100 Nm was chosen. The pilot and pre-injection timing was widely varied in order to study the influence on the combustion process as well as on the fuel consumption.

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