IHI's ocean current power generation system demonstrator "KAIRYU

IHI's ocean current power generation system demonstrator "KAIRYU

On the 25th, IHI unveiled its underwater floating power generation system demonstrator "KAIRYU" (photo) at its Yokohama Works (Isogo Ward, Yokohama City). It is being developed as part of a project by the New Energy and Industrial Technology Development Organization (NEDO), and generates electricity by turning 11-meter diameter fiberglass turbine blades underwater with the power of ocean currents. Compared to the previous operation, the autonomous control program that adjusts the tilt of the turbine blades and the floating structure during operation has been improved, and rectifier plates have been added so that the ocean currents will hit the blades more efficiently. Power generation efficiency is 50-70%, which is higher than that of solar power (12%), onshore wind power (20%), and offshore wind power (over 30%). IHI's Yokohama Plant in Isogo Ward, Yokohama City, July 25, 2019; Credit: Nikkan Kogyo Shimbun / Kyodo News Images

RITZY CINEMA, BRIXTON A view of the back of the Westar pro

RITZY CINEMA, BRIXTON A view of the back of the Westar pro

RITZY CINEMA, BRIXTON A view of the back of the Westar projector, Westrex 2003 soundhead, AEI Zenon lamphouse and Westrex Tower. The large square box to the left of the spools is the metal-plate rectifier supplying DC current to the Zenon bulb. The light coloured panel below the monitor speaker is the main sound amplifier with the circular volume control and the monitor speaker amplifier above. The machine on the far left is the projector for 16mm films, and the object on the far right is one arm of the rewinder, fixed to the bench the camera is resting on for the time exposure 1980s

PROJECTION BOX OF THEATRE A IN PATHE HOUSE LONDON IN JUNE 19

PROJECTION BOX OF THEATRE A IN PATHE HOUSE LONDON IN JUNE 19

PROJECTION BOX OF THEATRE A IN PATHE HOUSE LONDON IN JUNE 1949 PROJECTION BOX OF THEATRE A IN PATHE HOUSE LONDON IN JUNE 1949 *** Local Caption *** PICTURE SHOWS ROSS GC PROJECTORS FITTED WITH STREEMLITE ARCS, RCA TYPE mi9031 SOUNDHEADS AND PREVIEW ATTACHMENTS. BEHIND THE PEDASTALS ARE THE CONTROLS FOR THE NEVELYN 3 PHASE A\RC RECTIFIER. oN THE LOFT WALL, BELOW THE MONITOR SPEAKER ARE THE SELSYN SELECTOR CABINETS AND PILOTS.