Determination of Burn Rate Equation Uncertainty Intervals in Solid Fuel Ramjet

2021 ◽  
Author(s):  
William J. Hankins ◽  
Robert A. Frederick ◽  
David M. Lineberry
Keyword(s):  
Solid Fuel ◽  
Rate Equation ◽  
Burn Rate

Research on Fuel Migration Phenomenon in the Sintering Process

2013 ◽  
Vol 634-638 ◽  
pp. 857-863
Author(s):  
Ya Ping Mo ◽  
De Qing Zhu ◽  
Jun Li
Keyword(s):  
Grain Size ◽  
Solid Fuel ◽  
Fine Particles ◽  
Vertical Direction ◽  
Size Composition ◽  
Fuel Particle ◽  
Sintering Process ◽  
Material Layer ◽  
Flow Through

In this paper, we use the research methods of sintering cup.On the basis of the determination of solid fuel particle size composition and the distribution in the mixture. During the sintering process, respectively, 5min, 10min, 15min, 20min interrupt the test, by dectecting the distribution of solid fuel in the mixture to study the migration phenomenon of solid fuel during the sintering process. The results showed that: during the sintering process, the main migration of the fuel is the migration of fine particles, including the fuel migration of 0.25-0.5mm grain size, part of the 0.5-1mm grain size and a small amount of-0.25mm grain size,but most of the fuel migrated will be re-adsorbed, about 0.11% of the fuel with the air flow through the material layer, the migration of fuel to ease the state of segregation in the vertical direction along the material layer, so that cause actual participation in the combustion of the fuel content in line along the height direction of the material layer.

scholarly journals Determination of the Rate Equation for a Certain Reaction by a Single Kinetic Pursuit

1983 ◽  
Vol 103 (3) ◽  
pp. 350-355
Author(s):  
YOSHIAKI FURUYA ◽  
YOSHIO YANAGA ◽  
RYUICHI UEOKA ◽  
MASAMI TOMIYAMA ◽  
AKIRA INOUE
Keyword(s):  
Rate Equation

scholarly journals The development of a new inhibition kinetic spectrophotometric method for the determination of phenylhydrazine

2005 ◽  
Vol 70 (7) ◽  
pp. 987-993 ◽  
Author(s):  
Violeta Mitic ◽  
Snezana Nikolic ◽  
Vesna Stankov-Jovanovic
Keyword(s):  
Detection Limit ◽  
Rate Equation ◽  
Reaction Rate ◽  
Method Development ◽  
Kinetic Method ◽  
Inhibitory Effect ◽  
Reagent Concentration ◽  
Inhibition Kinetic ◽  
Kinetic Spectrophotometric

Anew sensitive kinetic method has been developed for the determination of trace amounts of phenylhydrazine in the range of 1.08x10-7 to 1.08x10-6 g/cm3. The detection limit of this method is 0.008 ?g/cm3, based on the 3Sb criterion. Themethod is based on the inhibitory effect of phenylhydrazine on the oxidation of Victoria Blue 4-R by KBrO3. The reaction was monitored spectrophotometrically at 596.3 nm. The method development includes the optimization of the reagent concentration and temperature. The kinetic parameters of the reaction are reported and a rate equation is suggested. The effects of certain foreign ions upon the reaction rate were determined for the assessment of the selectivity of the method. The new developed method was found to have fairly good selectivity, sensitivity, simplicity and rapidity.

scholarly journals Penurunan Nilai Kadar Air Dan Laju Pembakaran Pada Biobriket Limbah Kayu Sengon Dengan Variasi Tekanan

2018 ◽  
Vol 19 (2) ◽  
Author(s):  
Feta Kukuh Pambudi ◽  
Wahidin Nuriana ◽  
Hantarum
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Combustion Rate ◽  
Solid Fuel ◽  
Organic Waste ◽  
Wood Waste ◽  
Burn Rate

Bio-briquette is a solid fuel made from organic waste and mixed with other materials and then printed using a certain pressure to get the desired shape and characteristics. This research is focused to know the influence of variation of pressure on the density, moisture content and combustion rate on the bio-briquette of sengon wood waste with variation of pressure 45 kg / cm2, 80 kg/cm2, 115 kg /cm2, 150 kg/cm2. Use of this research obtained the highest density 0.47 g/cm3 on the bacon of sengon wood  bio-briquette with the pressure of 150 kg/cm2, the highest moisture value is 6.6 % in the bacon of sengon wood bio-briquette with pressure 150 kg/cm2 and burning at an average of 0,35 g /min of sengon wood waste with a pressure of 150 kg /cm2. The greater the pressure the higher the density, the lower the water content and the lower the burn rate.

Determination of the ash content of solid fuel using annihilation γ-rays

2014 ◽  
Vol 48 (5) ◽  
pp. 298-301
Author(s):  
Yu. N. Pak ◽  
D. Yu. Pak
Keyword(s):  
Solid Fuel ◽  
Ash Content ◽  
Γ Rays

scholarly journals X-ray method for determination of mineral constituent in solid fuel

2014 ◽  
Vol 21 (3) ◽  
pp. 356-359
Author(s):  
I.F. Mikhailov ◽  
◽  
◽  
Keyword(s):  
Solid Fuel ◽  
Ray Method ◽  
X Ray ◽  
Mineral Constituent

scholarly journals Solid Fuel rich Propellant Development for use in a Ramjet to Propel an Artillery Shell

2020 ◽  
Vol 70 (3) ◽  
pp. 329-335
Author(s):  
Velari Yogeshkumar ◽  
Nikunj Rathi ◽  
P. A. Ramakrishna
Keyword(s):  
High Pressure ◽  
Tensile Strength ◽  
Ammonium Perchlorate ◽  
Solid Fuel ◽  
Pressure Index ◽  
Time Period ◽  
Ballistic Properties ◽  
Base Bleed ◽  
Burn Rate ◽  
Artillery Shell

This study describes the development of a fuel-rich propellant to be used in a solid fuel ramjet to provide active propulsion to a 155 mm artillery shell. Fuel-rich propellants consisting of aluminum, ammonium perchlorate and hydroxyl terminated polybutadiene were developed and their ballistic properties were measured to choose the appropriate fuel for the ramjet application. The attempts made were to enhance the burn rates of the propellant to provide required burn rates at lowest possible pressures in primary combustor of the ramjet. The propellant selection was done with reference of working time period of the base bleed unit, to calculate the required burn rate and corresponding pressure in primary combustor. It was observed that the fuel rich propellant of composition 35% ammonium perchlorate with 1 % Iron oxide embedded on it, 30 % mechanically activated aluminum with 10% polytetrafluoroethylene, and 25 % HTPB was found suitable for the above application. This provided the higher burn rates among all developed propellants with high pressure index of 0.58. This makes it suitable for the ramjet requiring higher burn rates at lower possible primary chamber pressures. The Young’s modulus and tensile strength of this propellant was measured to be 1.73 MPa and 0.24 MPa, respectively.

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