Ads
related to: big whirly 14 turbine vent
Search results
Results From The WOW.Com Content Network
A roof turbine ventilator, colloquially known as a 'Whirly Bird' is an application of wind driven ventilation. Passive ventilation is the process of supplying air to and removing air from an indoor space without using mechanical systems.
The Aviadvigatel PS-90 is a Russian high-bypass commercial turbofan rated at 16000 kgf (157 kN, 35,300 lbf) thrust.It powers Russian airliners such as the Ilyushin Il-96 and the Tupolev Tu-204/Tu-214 series and transport aircraft such as the Ilyushin Il-76.
Wind-powered roof turbine ventilator. Mechanical attic ventilation fans may be powered in a variety of different ways. Most attic ventilators fitted to homes are powered off mains electricity. A trend towards solar-powered attic ventilators is observable in the interest of conserving electricity and lowering monthly utility bills.
The engine featured a single-stage fan, a three-stage low-pressure compressor, and an eleven-stage high-pressure compressor coupled to a two-stage high-pressure turbine and four-stage low-pressure turbine. The JT9D-3, the earliest certified version of the engine, weighed 8,470 lb (3,840 kg) and produced 43,500 lbf (193 kN) thrust. [7]
A proposed 9,000 lbf (40 kN; 4,100 kgf) thrust version with a new high-pressure turbine ceramic-matrix composite tailcone [15] GMA 3010 / AE 3010 A 10,000 lbf (44.5 kN; 4,540 kgf) thrust variant, which was to power the Yakovlev Yak-77 twin-engine business jet [ 16 ] as a derated variant of the GMA 3012 with a 44 in diameter (112 cm) fan [ 17 ]
The gasifier turbine idled at 15,000 RPM and the power turbine operated at up to 28,000 RPM. Overall compression ratio in the gasifier stage was 3.5:1. [ 22 ] Turbine inlet temperature was increased to 1,650 °F (900 °C) from 1,500 °F (820 °C); after GM Research re-rated the temperature resistance of the GMR-235 superalloy.