Enjin jet: Perbezaan antara semakan
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Semakan pada 02:24, 13 Februari 2009
Tolong bantu menterjemahkan sebahagian rencana ini. Rencana ini memerlukan kemaskini dalam Bahasa Melayu piawai Dewan Bahasa dan Pustaka. Sila membantu, bahan-bahan boleh didapati di Enjin jet (Inggeris). Jika anda ingin menilai rencana ini, anda mungkin mahu menyemak di terjemahan Google. Walau bagaimanapun, jangan menambah terjemahan automatik kepada rencana, kerana ini biasanya mempunyai kualiti yang sangat teruk. Sumber-sumber bantuan: Pusat Rujukan Persuratan Melayu. |
A jet engine is a reaction engine that discharges a fast moving jet of fluid to generate thrust in accordance with Newton's laws of motion. This broad definition of jet engines includes turbojets, turbofans, rockets, ramjets, pulse jets and pump-jets. In general, most jet engines are internal combustion engines[1] but non-combusting forms also exist.
In some common usage, the term 'jet engine' generally refers to an internal combustion duct engine, which typically consists of an engine with a rotary (rotating) air compressor powered by a turbine ("Brayton cycle"), with the leftover power providing thrust via a propelling nozzle. These types of jet engines are primarily used by jet aircraft for long distance travel. The early jet aircraft used turbojet engines which were relatively inefficient for subsonic flight. Modern subsonic jet aircraft usually use high-bypass turbofan engines which help give high speeds as well as, over long distances, giving better fuel efficiency than many other forms of transport.
About 7.2% of the oil used in 2004 was ultimately consumed by jet engines.[2] In 2007, the cost of jet fuel, while highly variable from one airline to another, averaged 26.5% of total operating costs, making it the single largest operating expense for most airlines.[3]
Rujukan
- John Golley (1997). Genesis of the Jet: Frank Whittle and the Invention of the Jet Engine. Crowood Press. ISBN 1-85310-860-X.
- David S Brooks (1997). Vikings at Waterloo: Wartime Work on the Whittle Jet Engine by the Rover Company. Rolls-Royce Heritage Trust. ISBN 1-872922-08-2
Lihat juga
- Prestasi enjin jet
- Pesawat jet
- Bot jet
- Turbin kipas
- Enjin kitar berubah
- Turbin jet
- Turbin bebaling
- Turbin aci
- Bebaling kipas
- Denyutan jet
- Turbin roket
- Ramjet
- Muncung enjin roket
- Dorongan kapal angkasa
- Pengecas lampau
- Pengecas turbin
- Pembakar lanjut
- Suntikan air (enjin)
- Tujahan balikan
- Turbin gas
- Kurt Schreckling, orang yang membina enjin jet praktikal untuk model pesawat
Pautan luar
| Wikimedia Commons mempunyai media berkaitan Enjin jet |
- A New “Open Rotor” Jet Engine That Could Reduce Fuel Consumption
- Technology Speed of Civil Jet Engines
- Animated Jet Engines to understand how it works
- RMCybernetics - A simple Homemade Jet Engine
- Journey through a jet engine(flash)
- How Stuff Works article on how a Gas Turbine Engine works
- Influence of the Jet Engine on the Aerospace Industry
- An Overview of Military Jet Engine History (Rand Corp., 24 pgs, PDF)
- A jet propulsion bicycle
- Basic jet engine tutorial (Quicktime Video
- Jet powered model of an Airbus A330 at 1/16 scale
- Pulsejet in aeromodelling
- Interactive jet engine simulator for learning