scholarly journals Test results of a 30 kW self-rectifying biradial air turbine-generator prototype

2019 ◽  
Vol 109 ◽  
pp. 187-198 ◽  
Author(s):  
A.A.D. Carrelhas ◽  
L.M.C. Gato ◽  
J.C.C. Henriques ◽  
A.F.O. Falcão ◽  
J. Varandas
Keyword(s):  
Test Results ◽  
Turbine Generator ◽  
Air Turbine

scholarly journals Millimeter Scale MEMS Air Turbine Generator by Winding Wire and Multilayer Magnetic Ceramic Circuit

2012 ◽  
Vol 02 (02) ◽  
pp. 41-46 ◽  
Author(s):  
Akane Iizuka ◽  
Minami Takato ◽  
Masato Kaneko ◽  
Tatsuya Nishi ◽  
Ken Saito ◽  
...  
Keyword(s):  
Turbine Generator ◽  
Air Turbine ◽  
Winding Wire

scholarly journals Multilayer magnetic circuit for millimeter scale MEMS air turbine generator

2013 ◽  
Vol 47 ◽  
pp. 012015 ◽  
Author(s):  
M Takato ◽  
M Kaneko ◽  
T Nishi ◽  
K Saito ◽  
F Uchikoba
Keyword(s):  
Magnetic Circuit ◽  
Turbine Generator ◽  
Air Turbine

The Development and Testing of a Wave-Activated Navigation Buoy With a Wells Turbine

1985 ◽  
Vol 107 (2) ◽  
pp. 268-273 ◽  
Author(s):  
T. J. T. Whittaker ◽  
F. A. McPeake ◽  
A. G. Barr
Keyword(s):  
Water Column ◽  
Peak Performance ◽  
Optimum Level ◽  
Wells Turbine ◽  
Turbine Generator ◽  
Ongoing Research ◽  
Air Turbine ◽  
Hydrodynamic Response ◽  
Current Design ◽  
Heave Motion

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.

Deform Performance of Spring Vibration Isolating Turbine–Generator Foundation under Strong Earthquake Actions

2011 ◽  
Vol 137 ◽  
pp. 100-105
Author(s):  
Tie Jun Qu ◽  
Xian Yun Wang ◽  
De Ying Meng ◽  
Dong An
Keyword(s):  
Theoretical Calculation ◽  
Strong Earthquake ◽  
Seismic Behavior ◽  
Internal Force ◽  
Observation Data ◽  
Test Results ◽  
Turbine Generator ◽  
Foundation Model ◽  
Earthquake Action

Large turbine–generator foundation can reduce the vibration in an effective way by mounting vibration isolating springs when the equipments are operating. But under strong earthquake actions, the research of seismic behavior is presently limited to theoretical calculation and there are no test results or observation data. In this paper, 1:10 spring vibration isolating foundation model is made to carry out a pseudo–dynamic seismic test. This paper also analyzes the deform distribution of column and spring of turbine–generator foundation under horizontal earthquake actions. The test results show that because of the spring of column top, deform distribution of foundation has changed; column top displacement of each column is different; spring can regulate the internal force of the column and these springs are also able to resist horizontal earthquake action when they are reducing the vibration of the equipments.

Development of Miniature Electromagnetic Devices Combined with Silicon and Magnetic Ceramic

2014 ◽  
Vol 704 ◽  
pp. 305-312 ◽  
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.

Experimental Results of Full Scale Air-Cooled Turbine Tests

1976 ◽  
Vol 98 (1) ◽  
pp. 103-113
Author(s):  
H. Nouse ◽  
A. Yamamoto ◽  
T. Yoshida ◽  
H. Nishimura ◽  
K. Takahara ◽  
...  
Keyword(s):  
Axial Flow ◽  
Aircraft Engine ◽  
Aerodynamic Characteristics ◽  
Experimental Results ◽  
Test Results ◽  
Test Apparatus ◽  
Two Stage ◽  
Turbine Cooling ◽  
Turbine Performance ◽  
Air Turbine

In order to investigate several problems associated with the turbine cooling, an air-cooled two-stage axial flow turbine for an aircraft engine application was designed. Aerodynamic characteristics of the two-stage turbine without coolants were obtained first from the cold air turbine tests, and predictions of the turbine performance with supplying of coolants were made using the test results. Following these experiments, cooling tests of the first stage turbine were conducted in the range of turbine inlet gas temperatures lower than 1360 K by the another test apparatus. The descriptions of the turbine and the two test apparatus and the experimental results of the two test turbines are presented. The performance prediction, coolant effects and Reynolds number effect on the turbine performance are also described.

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