Control law design for the air-turbine-generator set of a fully submerged 1.5 MW mWave prototype. Part 1: Numerical modelling

This paper presents and discusses the results of the first stage of an ongoing research program to improve the design of wave powered navigation aids using the oscillating water column principle. Wave tank testing has shown that the heave motion of current tail tube buoys is the predominant feature of the hydrodynamic response. A Wells self rectifying air turbine, coupled to a 100-W generator which produces an optimum level of damping to the water column for peak performance, has been designed and tested. It has been concluded from preliminary sea trails that a simple, efficient, reliable, turbine-generator has been developed to meet the requirements of the current design of navigation buoy. However there is considerable scope for improving the hydrodynamic design of wave activated buoys.

Download Full-text

Designing the auxiliary power unit to occupy ram air turbine generator space

Aircraft Engineering and Aerospace Technology ◽

10.1108/eb035138 ◽

1974 ◽

Vol 46 (3) ◽

pp. 10-11

Keyword(s):

Power Unit ◽

Turbine Generator ◽

Auxiliary Power Unit ◽

Auxiliary Power ◽

Air Turbine

Download Full-text

THE TURBONATOR - AN INTEGRATED AIR TURBINE GENERATOR FOR HIGH MACH AIRCRAFT

10.4271/580069 ◽

1958 ◽

Author(s):

S.F. Richardson ◽

J.W. Haynes

Keyword(s):

Turbine Generator ◽

Air Turbine ◽

High Mach

Download Full-text

Development of Miniature Electromagnetic Devices Combined with Silicon and Magnetic Ceramic

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.704.305 ◽

2014 ◽

Vol 704 ◽

pp. 305-312 ◽

Cited By ~ 1

Author(s):

Minami Takato ◽

Hiroaki Endo ◽

Kazuaki Maezumi ◽

Yuji Yokozeki ◽

Ken Saito ◽

...

Keyword(s):

Three Dimensional ◽

Helical Structure ◽

Ceramic Technology ◽

Portable Devices ◽

Turbine Generator ◽

Micro Electro Mechanical Systems ◽

Magnetic Devices ◽

Electromagnetic Devices ◽

Air Turbine ◽

Mems Technology

As portable devices become smaller and more convenient, they increasingly require miniaturized batteries that preserve the light weight of the device while delivering sufficient power. However, miniaturization of conventional magnetic devices is precluded by the magnetic material and helical structure of the coil. To solve this problem, we introduce a multilayer ceramic technology that realizes three-dimensional miniature magnetic devices. The miniature components are fabricated by micro-electro-mechanical systems (MEMS) technology. This paper describes an electromagnetic motor and an electromagnetic induction type air turbine generator developed through MEMS and multilayer ceramic technologies. The fabricated motor is 4.2 [mm] in diameter and 6.0 [mm] in height, runs at 1080 rpm, and has a consumption power of 0.11 [W]. The air turbine generator is 10.6 [mm] long, 10.6 [mm] wide, and 3.6 [mm] high. Connected to a 4 [Ω] load resistor, its output power is 195 [μVA] at a rotational speed of 9000 rpm.

Download Full-text