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TQ-12
The TQ-12 (, lit. ''Sky Lark 12'') is a gas-generator cycle rocket engine burning liquid methane and liquid oxygen under development by Landspace. TQ-12 is the first Chinese liquid rocket engine developed with private funding. The engine has been designed to produce of thrust at sea level. History The engine passed its first power pack test including the turbopump, valves, ignition components, and the gas generator at a LandSpace facility in Huzhou Huzhou (, ; Huzhounese: ''ghou² cieu¹'') is a prefecture-level city in northern Zhejiang province (Hangzhou–Jiaxing–Huzhou Plain, China). Lying south of the Lake Tai, it borders Jiaxing to the east, Hangzhou to the south, and the provinc ... on March 25, 2019. The engine's first full assembly was delivered in May 2019, and a hot fire test was successfully conducted the same month. The engine passed its first 200 seconds variable thrust test on October 26, 2019. Series of 400s hot fire tests were conducted in January 2021 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landspace
LandSpace Technology Corporation (doing business as LandSpace) is a Chinese private space launch provider based in Beijing. It was founded in 2015 by Zhang Changwu. LandSpace developed its first launch vehicle Zhuque-1, powered by solid-propellant motors. Zhuque-1 was launched on 27 October 2018, however the payload failed to reach orbit due to an issue with the third stage. The company also developed the liquid-fueled Zhuque-2, based on its methalox TQ-11 and TQ-12 engines, whose maiden launch (failed to orbit) occurred in December 2022. Launch vehicles Zhuque-1 Zhuque-1 (ZQ-1, Chinese：朱雀一号 or 朱雀·南太湖号), also called LandSpace-1 or LS-1 (the name LandSpace-1 or LS-1 was originally reserved for a different rocket that did not in the end materialize; after cancellation of the rocket, the name LandSpace-1 was then affiliated to LandSpace's rocket-to-be-developed at the time, the Zhuque-1), is a -tall, three-stage solid-propellant rocket. All stages ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZQ-2
LandSpace Technology Corporation ( doing business as LandSpace) is a Chinese private space launch provider based in Beijing. It was founded in 2015 by Zhang Changwu. LandSpace developed its first launch vehicle Zhuque-1, powered by solid-propellant motors. Zhuque-1 was launched on 27 October 2018, however the payload failed to reach orbit due to an issue with the third stage. The company also developed the liquid-fueled Zhuque-2, based on its methalox TQ-11 and TQ-12 engines, whose maiden launch (failed to orbit) occurred in December 2022. Launch vehicles Zhuque-1 Zhuque-1 (ZQ-1, Chinese：朱雀一号 or 朱雀·南太湖号), also called LandSpace-1 or LS-1 (the name LandSpace-1 or LS-1 was originally reserved for a different rocket that did not in the end materialize; after cancellation of the rocket, the name LandSpace-1 was then affiliated to LandSpace's rocket-to-be-developed at the time, the Zhuque-1), is a -tall, three-stage solid-propellant rocket. All stages h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and borders fourteen countries by land, the most of any country in the world, tied with Russia. Covering an area of approximately , it is the world's third largest country by total land area. The country consists of 22 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau). The national capital is Beijing, and the most populous city and financial center is Shanghai. Modern Chinese trace their origins to a cradle of civilization in the fertile basin of the Yellow River in the North China Plain. The semi-legendary Xia dynasty in the 21st century BCE and the well-attested Shang and Zhou dynasties developed a bureaucratic political system to serve hereditary monarchies, or dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquid Oxygen
Liquid oxygen—abbreviated LOx, LOX or Lox in the aerospace, submarine and gas industries—is the liquid form of molecular oxygen. It was used as the oxidizer in the first liquid-fueled rocket invented in 1926 by Robert H. Goddard, an application which has continued to the present. Physical properties Liquid oxygen has a pale blue color and is strongly paramagnetic: it can be suspended between the poles of a powerful horseshoe magnet. Liquid oxygen has a density of , slightly denser than liquid water, and is cryogenic with a freezing point of and a boiling point of at . Liquid oxygen has an expansion ratio of 1:861 under and , and because of this, it is used in some commercial and military aircraft as a transportable source of breathing oxygen. Because of its cryogenic nature, liquid oxygen can cause the materials it touches to become extremely brittle. Liquid oxygen is also a very powerful oxidizing agent: organic materials will burn rapidly and energetically in liquid o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liquefied Natural Gas
Liquefied natural gas (LNG) is natural gas (predominantly methane, CH4, with some mixture of ethane, C2H6) that has been cooled down to liquid form for ease and safety of non-pressurized storage or transport. It takes up about 1/600th the volume of natural gas in the gaseous state (at standard conditions for temperature and pressure). LNG is odorless, colorless, non-toxic and non-corrosive. Hazards include flammability after vaporization into a gaseous state, freezing and asphyxia. The liquefaction process involves removal of certain components, such as dust, acid gases, helium, water, and heavy hydrocarbons, which could cause difficulty downstream. The natural gas is then condensed into a liquid at close to atmospheric pressure by cooling it to approximately ; maximum transport pressure is set at around (gauge pressure), which is about one-fourth times atmospheric pressure at sea level. The gas extracted from underground hydrocarbon deposits contains a varying mix of hy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas-generator Cycle
The gas-generator cycle is a power cycle of a pumped liquid bipropellant rocket engine. Part of the unburned propellant is burned in a gas generator (or preburner) and the resulting hot gas is used to power the propellant pumps before being exhausted overboard, and lost. Because of this loss, this type of engine is termed open cycle. Usage Gas-generator combustion engines include the following: * Vulcain, HM7B *Merlin *RS-68 *RS-27A *J-2X * F-1 *RD-107 * CE-20 * Rocket launch systems that use gas-generator combustion engines: *Ariane 5 *Falcon 9, Falcon Heavy *Delta IV *Saturn V *Soyuz * Geosynchronous Satellite Launch Vehicle III *Long March 3B, Long March 2F *Rocket Lab Neutron *Miura 5 See also * Combustion tap-off cycle * Expander cycle * Pressure-fed engine * Rocket engine A rocket engine uses stored rocket propellants as the reaction mass for forming a high-speed propulsive jet of fluid, usually high-temperature gas. Rocket engines are reaction engines, producin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocket Engine
A rocket engine uses stored rocket propellants as the reaction mass for forming a high-speed propulsive jet of fluid, usually high-temperature gas. Rocket engines are reaction engines, producing thrust by ejecting mass rearward, in accordance with Newton's third law. Most rocket engines use the combustion of reactive chemicals to supply the necessary energy, but non-combusting forms such as cold gas thrusters and nuclear thermal rockets also exist. Vehicles propelled by rocket engines are commonly called rockets. Rocket vehicles carry their own oxidiser, unlike most combustion engines, so rocket engines can be used in a vacuum to propel spacecraft and ballistic missiles. Compared to other types of jet engine, rocket engines are the lightest and have the highest thrust, but are the least propellant-efficient (they have the lowest specific impulse). The ideal exhaust is hydrogen, the lightest of all elements, but chemical rockets produce a mix of heavier species, reducing the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbopump
A turbopump is a propellant pump with two main components: a rotodynamic pump and a driving gas turbine, usually both mounted on the same shaft, or sometimes geared together. They were initially developed in Germany in the early 1940s. The purpose of a turbopump is to produce a high-pressure fluid for feeding a combustion chamber or other use. There are two types of turbopumps: a centrifugal pump, where the pumping is done by throwing fluid outward at high speed, or an axial-flow pump, where alternating rotating and static blades progressively raise the pressure of a fluid. Axial-flow pumps have small diameters but give relatively modest pressure increases. Although multiple compression stages are needed, axial flow pumps work well with low-density fluids. Centrifugal pumps are far more powerful for high-density fluids but require large diameters for low-density fluids. History Early development High-pressure pumps for larger missiles had been discussed by rocket pioneers su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ignition System
An ignition system generates a spark or heats an electrode to a high temperature to ignite a fuel-air mixture in spark ignition internal combustion engines, oil-fired and gas-fired boilers, rocket engines, etc. The widest application for spark ignition internal combustion engines is in petrol (gasoline) road vehicles such as cars and motorcycles. Compression ignition Diesel engines ignite the fuel-air mixture by the heat of compression and do not need a spark. They usually have glowplugs that preheat the combustion chamber to allow starting in cold weather. Other engines may use a flame, or a heated tube, for ignition. While this was common for very early engines it is now rare. The first electric spark ignition was probably Alessandro Volta's toy electric pistol from the 1780s. Siegfried Marcus patented his "Electrical igniting device for gas engines" on 7 October 1884. History Magneto systems The simplest form of spark ignition is that using a magneto. The engine spins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Generator
A gas generator is a device for generating gas. A gas generator may create gas by a chemical reaction or from a solid or liquid source, when storing a pressurized gas is undesirable or impractical. The term often refers to a device that uses a rocket propellant to generate large quantities of gas. The gas is typically used to drive a turbine rather than to provide thrust as in a rocket engine. Gas generators of this type are used to power turbopumps in rocket engines, in a gas-generator cycle. It is also used by some auxiliary power units to power electric generators and hydraulic pumps. Another common use of the term is in the industrial gases industry, where gas generators are used to produce gaseous chemicals for sale. For example, the chemical oxygen generator, which delivers breathable oxygen at a controlled rate over a prolonged period. During World War II, portable gas generators that converted coke to producer gas were used to power vehicles as a way of alleviat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huzhou
Huzhou (, ; Huzhounese: ''ghou² cieu¹'') is a prefecture-level city in northern Zhejiang province (Hangzhou–Jiaxing–Huzhou Plain, China). Lying south of the Lake Tai, it borders Jiaxing to the east, Hangzhou to the south, and the provinces of Anhui and Jiangsu to the west and north respectively. As of the 2020 census, its population was 3,367,579 inhabitants, of whom 1,015,937 lived in the built-up (''or metro'') area made of Wuxing District as Nanxun District is not being conurbated yet. Location Huzhou, in its general aspect, is in the center of the Yangtze River Delta Economic Area, with the city center south of the Chinese third largest freshwater lake Lake Tai. There are transportation links to the provincial capital of Hangzhou away in the south, Jiangsu and Anhui province in the west, and the metropolitan municipality of Shanghai to the northeast. Flowing quietly through the city is the Changxing-Huzhou-Shanghai Channel, it is also referred to as the "Eastern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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