annular by-pass duct
1Bypass duct — A bypass duct is an annular passage that allows some of a turbofan s airflow to bypass the engine core, or gas generator. If the turbofan is unmixed, the bypass duct will terminate at the bypass nozzle. In mixed turbofans, the bypass duct leads… …
2CFM International CFM56 — CFM56 …
3ear, human — ▪ anatomy Introduction organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium). The human ear, like …
4Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… …
5tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
6Lime kiln — A lime kiln is a kiln used to produce quicklime by the calcination of limestone (calcium carbonate). The chemical equation for this reaction is::CaCO3 + heat → CaO + CO2This reaction takes place at 900°C (at which temperature the partial pressure …
7Air preheater — An air preheater or air heater is a general term to describe any device designed to heat air before another process (for example, combustion in a boiler) with the primary objective of increasing the thermal efficiency of the process. They may be… …
8Hirschsprung's disease — Classification and external resources Histopathology of Hirschsprung disease. Enzyme histochemistry showing aberrant acetylcholine esterase (ACHE) positive fibres (brown) in the lamina propria mucosae …
9Esophageal atresia — Classification and external resources Common anatomical types of esophageal atresia a) Esophageal atresia with distal tracheoesophageal fistula (86%). b) Isolated esophageal atresia without tracheoesophageal fistula (7%). c) H type… …
10Thermal power station — Republika Power Plant, a thermal power station in Pernik, Bulgaria …
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