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Chuo-ku, Japan

Akimoto H.,Korea Advanced Institute of Science and Technology | Hara Y.,Tottori University | Kawamura T.,Consulting Inc. | Nakamura T.,MODEC Inc. | Lee Y.-S.,Korea Advanced Institute of Science and Technology
Environmental Research Letters | Year: 2013

In a vertical axis wind turbine (VAWT), turbine blades are subjected to the curved flow field caused by the revolution of turbine. However, performance prediction of VAWT is usually based on the fluid dynamic coefficients obtained in wind tunnel measurements of the two-dimensional static wing. The difference of fluid dynamic coefficients in the curved flow and straight flow deteriorates the accuracy of performance prediction. To find the correlation between the two conditions of curved and straight flow, the authors propose a conformal mapping method on complex plane. It provides bidirectional mapping between the two flow fields. For example, the flow around a symmetric wing in the curved flow is mapped to that around a curved (cambered) wing in the straight flow. Although the shape of mapped wing section is different from the original one, its aerodynamic coefficients show a good correlation to those of the original in the rotating condition. With the proposed method, we can reproduce the local flow field around a rotating blade from the flow data around the mapped static wing in the straight flow condition. © 2013 IOP Publishing Ltd. Source


Trademark
MODEC Inc. | Date: 2014-06-03

Tidal power generators; starters for motors and engines; motors, electric, other than for land vehicles; current generators; hydraulic engines and motors; compressed air engines; engines other than for land vehicles; motors other than for land vehicles; hydraulic turbines; wind turbines; air compressors for machines; compressed air machines. Dry cells; wet cells; accumulators in the nature of batteries; power distribution machines and apparatus, namely, panels and boxes and electronic power controllers therefor; rotary converters; phase modifiers. Non-electric prime movers for land vehicles not including their parts; machines elements for land vehicles, namely, brakes, gearboxes, clutches, couplings; motors for land vehicles; engines for land vehicles; turbines for land vehicles; boats and structural parts therefor; automobiles and structural parts therefor; two-wheeled motor vehicles and structural parts therefor; bicycles and structural parts thereof.


A guide plate having depressed portions is provided between an array of heat exchanger tubes, herein after tubes, arranged horizontally side-by-side and a next lower array of tubes arranged horizontally side-by-side, and is positioned with the lowest parts of the depressed portions near crest portions of respective lower tubes. The guide plate conveys a liquid D on outer surfaces of respective upper tubes onto similarly positioned lower tubes even when the tubes move in a right-and-left direction. A falling film heat exchanger installed in a ship, an offshore structure or the like can avoid reduction in heat exchange performance, even when the ship or the like inclines and swings, by substantially evenly distributing and dropping a liquid onto the crests of the tubes and causing the liquid dropped from the tubes located in an upper array to fall onto the tubes located in the next lower array.


Trademark
MODEC Inc. | Date: 2012-02-24

Natural resources production system equipped with lithium bromide absorption refrigerating machines, found aboard a floating production, storage and offloading (FPSO) vessel or floating liquefied natural gas (FLNG) vessel, comprised of natural resource receiving machinery, hydrocarbon treatment machinery, and loading and unloading machines; oil, gas and mineral resources production system equipped with lithium bromide absorption refrigerating machines, found aboard a floating production, storage and offloading (FPSO) or floating liquefied natural gas (FLNG) vessel, comprised of natural resource receiving machinery, hydrocarbon treatment machinery, and loading and unloading machines. Liquefied natural gas refrigeration system comprised of heat exchangers not being parts of machinery, and lithium bromide absorption refrigerating machine; lithium bromide absorption refrigerating machines and their parts and fittings. Installation of lithium bromide absorption refrigerating machines and their parts and fittings; repair and maintenance of lithium bromide absorption refrigerating machines and their parts and fittings; repair and maintenance of natural resources production system equipped with lithium bromide absorption refrigerating machines; repair and maintenance of oil production system, gas production system and mineral resources production system equipped with lithium bromide absorption refrigerating machines; repair and maintenance of liquefied natural gas refrigeration systems equipped with lithium bromide absorption refrigeration machines. Design of lithium bromide absorption refrigerating machines and their parts and fittings; design of liquefied natural gas refrigerating system equipped with lithium bromide absorption refrigerating machines; design of natural resources production system equipped with lithium bromide absorption refrigerating machines; design of oil production system, gas production system and mineral resources production system equipped with lithium bromide absorption refrigeration machines.


Trademark
Alfred Industries Inc. and MODEC Inc. | Date: 2008-07-15

All purpose disinfectants; All purpose disinfecting and deodorizing preparations; Antibacterial spray; Germicides and fungicides.

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