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Executor is a rocket engine developed by ARCA [1] for use on its Haas rocket series and on IAR 111 Excelsior supersonic airplane. Executor uses kerosene [2] and liquid oxygen as propellants in a gas-generator power cycle. The injector of Executor is of the pintle type that was first used in the Apollo Program for the lunar module landing engine.
The GREET model is specified in the Inflation Reduction Act of 2022 §45V [2] as the methodology to calculate the life cycle greenhouse gas emissions "through the point of production (well-to-gate)" when determining the level of tax credit for clean Hydrogen production until a successor is approved by the Secretary of the Treasury. The final ...
There are a wide variety of fields associated with nuclear engineering, but computers and associated software are used most often in design and analysis. Neutron kinetics, thermal-hydraulics, and structural mechanics are all important in this effort. Each software needs to be tested and verified before use. [1]
The Executor was a liquid-fueled rocket engine intended to power the IAR-111 Excelsior supersonic plane and Haas 2B and 2C rockets. Executor was an open cycle gas generator rocket engine, that uses liquid oxygen and kerosene and has a maximum thrust of 24 tons force. ARCA decided to use composite materials and aluminum alloys on a large scale.
Emissions from burning hydrogen can be negligible but emissions from producing hydrogen are currently higher than direct combustion of the source. [37] Hydrogen has a wide flammability range (3–70% H 2 in air) in comparison with other fuels. [35] As a result, it can be combusted in an internal combustion engine over a wide range of fuel-air ...
The National Hydrogen Energy Road Map (NHERM) is a program in India initiated by the National Hydrogen Energy Board (NHEB) in 2003 and approved in 2006 for bridging the technological gaps in different areas of hydrogen energy, including its production, storage, transportation and delivery, applications, safety, codes and standards and capacity building for the period up to 2020.
Hydrogen pinch analysis (HPA) is a hydrogen management method that originates from the concept of heat pinch analysis.HPA is a systematic technique for reducing hydrogen consumption and hydrogen generation through integration of hydrogen-using activities or processes in the petrochemical industry, petroleum refineries hydrogen distribution networks and hydrogen purification.
A German case study on storage of hydrogen in salt caverns found that if the German power surplus (7% of total variable renewable generation by 2025 and 20% by 2050) would be converted to hydrogen and stored underground, these quantities would require some 15 caverns of 500,000 cubic metres each by 2025 and some 60 caverns by 2050 ...