Marine machinery Drawing 3 min read
Concept of sections, revolved and oblique sections
An orthographic projection of an object gives the external shape and details of the object clearly. We know that the…
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Marine machinery Drawing 2 min read
Pipe Thread Cutting Machine
The most important element of any machine is screw threads without screw threads. There can not be any development in…
Marine machinery Drawing 5 min read
Weld Defects and Weld Quality Testing
Every weld joint is inspected by a team of trained inspectors for weld defects. Welding defects may arise due to…
Marine machinery Drawing 2 min read
Welding Practices in the Shipbuilding Industry
Multiple Passes: When plates of high thicknesses are welded (usually more than 5 to 6 mm), a number of welding passes…
Marine machinery Drawing 7 min read
Welding Methods And Weld Defects
Welding is one of the most widely used hot-work processes used in the shipbuilding industry. The development in welding technology has enabled…
Marine steam engine 1 min read
Babcock & Wilcox boiler.
One of the best known water-tube boilers on land in England and America is the Babcock & Wilcox, one of…
Marine steam engine 1 min read
Normand boiler.
The next most extensive experience has been obtained in the British Navy with the Normand type, with more or less…
Marine steam engine 3 min read
The Thornycroft boiler
The Thornycroft boiler (‘Speedy’ type)Fig. 58, consists essentially of a central upper steam cylinder A, and two smaller lower water…
Marine steam engine 2 min read
Comparison with locomotive type.
As regards the use of those varieties of water-tube boilers which give the greatest power for their weight and the…
Marine steam engine 4 min read
Water-Tube Or Tubulous Boilers.
THE previously described boilers, having the water outside the tubes and contained in an outer shell or so-called tank, are…
Marine steam engine 2 min read
Double-ended boilers.
Figs. 37 and 38 show a double- ended boiler. This is a common type for mercantile steamers, and is also…
Marine steam engine 4 min read
Arrangement And Efficiency Of Boilers – Water Tank Boilers.
Low-pressure boilers. The first boilers fitted to work marine engines were of the rectangular, or ‘box’ form; an example of…