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Honeywell auxiliary power units are a series of gas turbine auxiliary power units (APU) made by Honeywell Aerospace. Honeywell started manufacturing APUs in the early 1950s and since then they can be found on many aircraft. [1] Over the years Honeywell have produced more than 95,000 APUs and more than 36,000 are still in service. [2]
In 1997, Ingersoll Rand acquired Thermo King from Westinghouse for $2.56 billion in cash, 13 times earnings, [9] and added it to its Climate Control Technologies (later Climate Solutions) businesses, alongside Trane and Hussmann. At the time Thermo King controlled close to half the global market for refrigeration equipment. [9]
The first German jet engines built during the Second World War used a mechanical APU starting system designed by the German engineer Norbert Riedel.It consisted of a 10 horsepower (7.5 kW) two-stroke flat engine, which for the Junkers Jumo 004 design was hidden in the engine nose cone, essentially functioning as a pioneering example of an auxiliary power unit for starting a jet engine.
T62 Titan The direct drive main production version. T62T-2 80 hp (60 kW) at 56,700 turbine rpm for Boeing-Vertol CH-47A Chinook helicopters. [1]T62T-2A 95 hp (71 kW) at 56,700 turbine rpm for Boeing-Vertol CH-47B / C Chinook helicopters.
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Mediatek APU 64 MP Single Camera, 20 MP + 16 MP Dual Camera at 30 fps 5G NR Sub-6 GHz, LTE Q3 2020 Dimensity 800 [65] (MT6873) 4× Cortex-A76 @ 2.0 GHz 4× Cortex-A55 @ 2.0 GHz Mali-G57 MC4 @ 748 MHz (191.5 GFLOPS in FP32) Mediatek APU 3.0 (4 cores) 2.4 TOPS 64 MP Single Camera, 32 MP + 16 MP Dual Camera at 30 fps Q2 2020 Dimensity 810 [66]
Long-range communications is expedited by the use of a hand-cranked extendible antenna system. A 4.2 kW auxiliary power unit (APU) is mounted on the right front of the vehicle to provide 24 volt power. The APU can be dismounted using a davit (crane) carried on board and sandbagged for noise suppression. A single APU can provide power for two M577s.
Thermophotovoltaic (TPV) energy conversion is a direct conversion process from heat to electricity via photons.A basic thermophotovoltaic system consists of a hot object emitting thermal radiation and a photovoltaic cell similar to a solar cell but tuned to the spectrum being emitted from the hot object.