Topic
Afterburner
About: Afterburner is a research topic. Over the lifetime, 811 publications have been published within this topic receiving 5944 citations.
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20 Sep 2010
TL;DR: The stage-by-stage cell control volume modeling technique which was used in the compression system is applied to a mixed exhaust turbofan engine with afterburner and shows that it is an effective means of improve stability of the aeroengine to regulate the fan inlet guide vanes.
Abstract: The stage-by-stage cell control volume modeling technique which was used in the compression system is applied to a mixed exhaust turbofan engine with afterburner. The model is combined with the engine components matching technology in this paper. The explicit MacCormack two-step difference schemes and characteristic line method were used to simulate the process of transient augmenting engine stability and test the capability of surge elimination before adjusting the fan inlet guide vanes and after adjusting the fan inlet guide vanes in the condition of flow disturbances. The influence of the engine performance by the stator vanes adjusting was studied as well. The simulation results showed that the qualitative investigation of numerical model meets the project requirements, the numerical algorithm used is efficient. It is an effective means of improve stability of the aeroengine to regulate the fan inlet guide vanes. The positive regulation of fan inlet guide blades causes the engine specific thrust down, but the specific fuel consumption increases. The fan which was in surge recovers faster by increasing the fuel cutoff rate in the afterburner.
06 Jan 2020
01 Oct 1972
TL;DR: A conceptual design of an afterburner system for turbojet engines which may reduce the jet exhaust noise by approximately 10 decibels is presented in this paper, which consists of an array of swirl-can combustors and jet dividing nozzle tubes.
Abstract: A conceptual design of an afterburner system for turbojet engines which may reduce the jet exhaust noise by approximately 10 decibels is presented in this report. The proposed system consists of an array of swirl-can combustors and jet dividing nozzle tubes. The nozzle tubes translate axially upstream of the swirl cans when not in use. Results of preliminary design calculations and photographs of a kinematic model as applied to a hypothetical turbojet engine are presented.
Patent•
30 Oct 2019
TL;DR: In this paper, the afterburner of a pellet burner is characterized by a guiding pull rod, which makes a reciprocating movement and is connected by means of an articulated joint and guides to a movable ring.
Abstract: The pellet burner afterburner according to the present invention is installed in the burner at the border of a combustion chamber (2) and a fuel inlet (3) being the terminal section of an internal feeding pipe (4), seated on the feeding pipe (4).Furthermore, the afterburner according to the present invention is characterized in that it contains a guiding pull rod (5), which makes a reciprocating movement and is connected by means of an articulated joint (6) and guides (7) to a movable ring (8), which has cut-outs (9) on its perimeter, adapted to both the number and the shape of the profiled guiding vanes (10), which are fitted at equal intervals to the mounting plate (11), whereby the ring (8) is slide-mounted on to the guiding vanes (10).
Patent•
28 Jul 1986
TL;DR: In this article, the authors proposed to reduce detrimental components by circulating gas containing detrimental components which has been separated in an exhaust gas separating muffler to an afterburner by a heat-resilient air pump and further sending air into the afterburger by a compressor.
Abstract: PURPOSE:To reduce detrimental components by circulating gas containing detrimental components which has been separated in an exhaust gas separating muffler to an afterburner by a heat resisting air pump and further sending air into the afterburner by a compressor. CONSTITUTION:Exhaust gas A which has been taken in from a pre-exhaust gas pipe 8 is caused to be swirling current in an exhaust gas separating muffler 1, and is separated into gas containing detrimental components and that not containing this. Gas containing detrimental components is circulated to an afterburner 2 by a heat resisting air pump 4. Further, air is mixed into the gas containing detrimental components by a compressor 5. This mixed gas is burned in the afterburner 2 while being mixed with the exhaust gas A.