Results 51 to 60 of about 32,505 (164)

3D printed different polymer fuel grains for hybrid rocket engine

open access: yesFirePhysChem
The advent of various additive manufacturing technologies, such as 3D printing, has changed the structural design and preparation process of rocket fuels.
Xiaodong Yu   +5 more
doaj   +1 more source

Enhancement of the energetic performance of solid fuels with metal-fluoropolymer additives

open access: yesFirePhysChem
Aluminum (Al) holds a pivotal role in augmenting the energetic potential of solid fuel formulations. Its incorporation can notably amplify the energy yield upon combustion.
Ayush Koul   +6 more
doaj   +1 more source

A Study on the Strategy for Departure Aircraft Pushback Control from the Perspective of Reducing Carbon Emissions

open access: yesEnergies, 2018
In order to reduce the taxiing time of departing aircraft and reduce the fuel consumption and exhaust emissions of the aircraft, Shanghai Hongqiao Airport was taken as an example to study the control strategy for aircraft departure.
Xinhua Zhu   +5 more
doaj   +1 more source

Regression Rate Study of PVC/HTPB Hybrid Rocket Fuels

open access: yesInternational Journal of Mechanical and Industrial Engineering, 2011
In the present study an effort is made to investigate the local regression rate, average regression rate through the effect of oxidizer injection pressure. For experimental investigation a lab scale ballistic test motor is designed and number of static test firing are carried out at different gaseous oxidizer injection pressure.
Yash Pal, Kalpit. K, P.K. Dash
openaire   +1 more source

Catalytic effects of transition metal oxides on HTPB-based fuel polymer matrices

open access: yesFirePhysChem
Low regression rate due to difficult pyrolysis is a major challenge in the practical application of terminated hydroxyl‑terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion.
Hongwei Gao   +6 more
doaj   +1 more source

An Investigation on the Effect of Chemical Kinetics Mechanisms in the Modeling of Combustive Gaseous Oxidizer Flow on a Solid Fuel Surface [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2010
In this study, the combustion process of gaseous Oxygen on the surface of HTPB solid fuel has been investigated. To simulate the chemically reactive flow, Navier-Stokes equations and species transport equations were solved using LU-SW implicit scheme ...
M. Ahangar, R. Ebrahimi
doaj  

Vehicle kilometers of travel and fuel consumption rate for estimating CO2 emission of vehicles in Khon Kaen city

open access: yesKKU Engineering Journal, 2014
The Vehicle Kilometers of Travel (VKT) of each vehicle type can be applied to estimate amount of fuel consumption and CO2 emission from transport sector of nation. The objectives of this study are to survey and develop VKT model, fuel consumption rate of
Thaned Satiennam   +4 more
doaj  

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