hydrogen cycle
31Staged combustion cycle (rocket) — Staged combustion rocket cycle. Usually, all of the fuel and a portion of the oxidizer are fed through the pre burner (fuel rich) to power the pumps. An oxygen rich circuit is possible also, but less common because of the metallurgy required. The …
32proton-proton cycle — ▪ astronomy also called Proton proton Reaction, chain of thermonuclear reactions that is the chief source of the energy radiated by the Sun and other cool main sequence stars (star). Another sequence of thermonuclear reactions, called… …
33carbon cycle — 1. Ecol. the circulation of carbon atoms in the biosphere as a result of photosynthetic conversion of carbon dioxide into complex organic compounds by plants, which are consumed by other organisms: the carbon returns to the atmosphere in the form …
34Liquid air cycle engine — A liquid air cycle engine (LACE) is a spacecraft propulsion engine that attempts to gain efficiency by gathering part of its oxidizer from the atmosphere. In a LOX/LH2 bipropellant rocket the liquid oxygen needed for combustion is the majority of …
35Hybrid sulfur cycle — The hybrid sulfur cycle (HyS) is a sequence of processes used for hydrogen production. It is a variant of the sulfur iodine cycle.The HyS cycle involves a thermochemical and an electrochemical reaction, where the net reaction is the decomposition …
36Combined cycle — Thermodynamics …
37Atkinson cycle — Thermodynamics …
38Atofina-PCUK cycle — The Atofina PCUK cycle is an industrial process for the manufacture of hydrazine. Ammonia and hydrogen peroxide are the starting points of the cycle. Acetone is consumed and regenerated in the reaction.The cycle begins with ammonia reacting with… …
39Magnesium injection cycle — A closeup of the engine Magnesium Injection Cycle (MAGIC) is an engine design currently under development by Mitsubishi Corporation and the Tokyo Institute of Technology which uses magnesium and water to generate power.[1 …
40Expander cycle (rocket) — The expander cycle is a power cycle of a bipropellant rocket engine meant to improve the efficiency of fuel delivery.In an expander cycle, the fuel is heated before it is combusted, usually with waste heat from the main combustion chamber. As the …
