Investigation of Ammonia-Hydrogen Mixture as a Green Fuel for Jet Engines Using a Wave Reformer

2022 ◽  
Author(s):  
Pejman Akbari ◽  
Colin D. Copeland ◽  
Stefan Tüchler
Author(s):  
Molla Asmare ◽  
Mustafa Ilbas

Nowadays, the most decisive challenges we are fronting are perfectly clean energy making for equitable and sustainable modern energy access, and battling the emerging alteration of the climate. This is because, carbon-rich fuels are the fundamental supply of utilized energy for strengthening human society, and it will be sustained in the near future. In connection with this, electrochemical technologies are an emerging and domineering tool for efficiently transforming the existing scarce fossil fuels and renewable energy sources into electric power with a trivial environmental impact. Compared with conventional power generation technologies, SOFC that operate at high temperature is emerging as a frontrunner to convert the fuels chemical energy into electric power and permits the deployment of varieties of fuels with negligible ecological destructions. According to this critical review, direct ammonia is obtained as a primary possible choice and price-effective green fuel for T-SOFCs. This is because T-SOFCs have higher volumetric power density, mechanically stable, and high thermal shocking resistance. Also, there is no sealing issue problem which is the chronic issues of the planar one. As a result, the toxicity of ammonia to use as a fuel is minimized if there may be a leakage during operation. It is portable and manageable that can be work everywhere when there is energy demand. Besides, manufacturing, onboard hydrogen deposition, and transportation infrastructure connected snags of hydrogen will be solved using ammonia. Ammonia is a low-priced carbon-neutral source of energy and has more stored volumetric energy compared with hydrogen. Yet, to utilize direct NH3 as a means of hydrogen carrier and an alternative green fuel in T-SOFCs practically determining the optimum operating temperatures, reactant flow rates, electrode porosities, pressure, the position of the anode, thickness and diameters of the tube are still requiring further improvement. Therefore, mathematical modeling ought to be developed to determine these parameters before planning for experimental work. Also, a performance comparison of AS, ES, and CS- T-SOFC powered with direct NH3 will be investigated and best-performed support will be carefully chosen for practical implementation and an experimental study will be conducted for verification based on optimum parameter values obtained from numerical modeling.


2012 ◽  
Vol 43 (2) ◽  
pp. 193-209
Author(s):  
Oleg Vasilyevich Voloschenko ◽  
Sergey Anatolyevich Zosimov ◽  
Aleksey Anatolyevich Nikolaev ◽  
Vladimir Nikitovich Ostras ◽  
Valeriy Nikolaevich Sermanov ◽  
...  
Keyword(s):  

Alloy Digest ◽  
1998 ◽  
Vol 47 (12) ◽  

Abstract Pure rhenium is used in electronic applications, as filler wire in welding, and as an alloying addition to superalloys used in jet engines. This datasheet provides information on composition, physical properties, and microstructure. It also includes information on corrosion resistance as well as forming, heat treating, and powder metal forms. Filing Code: RE-2. Producer or source: Rhenium Metals Inc. (Rhenium Alloys Inc.).


Alloy Digest ◽  
1983 ◽  
Vol 32 (3) ◽  

Abstract GUTERL H-11 is a 5% chromium hot-work tool steel with an excellent combination of red hardness, shock resistance (toughness) and resistance to abrasion; these are the properties needed for good hot-work characteristics. It will withstand drastic cooling from maximum operating temperatures. Among the many uses for this steel are hot-die applications, structural parts for jet engines and missiles, extrusion mandrels and forging dies. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: TS-412. Producer or source: Guterl Special Steel Corporation.


2020 ◽  
Vol 321 ◽  
pp. 04013
Author(s):  
Sesh Tamirisakandala ◽  
Ernie Crist ◽  
Fusheng Sun ◽  
Matthew Dahar

Next generation fuel-efficient jet engines are running hotter presenting a structural challenge for the exhaust systems and structures adjacent to the engines. A conventional and affordable titanium alloy with superior oxidation resistance provides significant weight reductions and associated cost savings by eliminating the need for high density material systems such as nickel-base superalloys for service temperatures in between current titanium and nickel, enabling major technology advancement in high temperature aerospace applications. This paper presents an overview of Arconic’s engineered material ARCONIC-THORTM to address the needs of future aerospace systems.


1975 ◽  
Vol 14 (6) ◽  
pp. 809-812 ◽  
Author(s):  
A. A. Bochkarev ◽  
V. A. Kosinov ◽  
V. G. Prikhod'ko ◽  
A. K. Rebrov

Sign in / Sign up

Export Citation Format

Share Document