Studies on high performance inverter generation system of microhydraulic water turbine

With the increasing demand for renewable energy in the world, research contributing to the improvement of the technology level of wave power generation is essential. The authors have been developed a wave power generation system using port facilities in inner bays with high energy-consuming cities. In this study, the relationship between the rotational characteristics of a Savonius water turbine and the water particle velocity was quantitatively evaluated under the calm conditions of the inner bay, such as wave motion, flow, and coexistence of wave and current. According to the experimental results, it is found that the relationship between the rotational circumferential speed and the water particle velocity of the water turbine installed in a wave field tends to be different from that in a flow field and is evaluated by different equations. In addition, the relationship between circumferential velocity and the water particle velocity has also been formulated when installed in a wave-current coexistence field.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/KX0XBFuao48

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Pressurized Fuel/Air Operated Solid Oxide Fuel Cell Combined Carbon-Dioxide-Capturing High-Performance Power Generation System

IEEJ Transactions on Power and Energy ◽

10.1541/ieejpes.123.1097 ◽

2003 ◽

Vol 123 (9) ◽

pp. 1097-1104 ◽

Cited By ~ 2

Author(s):

Yoshitaka Inui ◽

Taichi Ishida ◽

Tomohiro Matsumae

Keyword(s):

Carbon Dioxide ◽

Power Generation ◽

Fuel Cell ◽

Solid Oxide Fuel Cell ◽

High Performance ◽

Solid Oxide ◽

Oxide Fuel ◽

Generation System ◽

Power Generation System

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Preliminary Design of a Wind Driven Vessel Dedicated to Hydrogen Production

Volume 10: Ocean Renewable Energy ◽

10.1115/omae2017-61408 ◽

2017 ◽

Cited By ~ 3

Author(s):

Jean-Christophe Gilloteaux ◽

Aurélien Babarit

Keyword(s):

Mathematical Model ◽

Wind Speed ◽

High Performance ◽

Turbine Disk ◽

Preliminary Design ◽

Aerodynamic Coefficients ◽

Ship Hulls ◽

Water Turbine ◽

Existing Data ◽

Innovative Concept

An innovative concept of harnessing wind energy is presented. The concept consists of a wind driven ship equipped with a hydro-generator that converts the kinetic energy of the water flow into electricity. The electricity is then converted into hydrogen by electrolysis. In the present study the use of a Flettner rotor is considered to propel the ship. A mathematical model of the hydrogen producing ship is developed based on existing data for high performance ship hulls and aerodynamic coefficients of existing Flettner rotors. The design is optimized with respect to the axial induction velocity through the water turbine disk. Results indicate that a 22m long vessel could produce 200 kW while a 80 m long vessel is able to generate 1 MW of mechanical power both for a true wind speed of 8 m/s.

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