Large Pelton turbines used in major hydro applications are of high efficiency, in the range of 92% or more. However, Peltons used in mini-hydro applications in Sri Lanka were often found to be of lower efficiency, and of ...

Dwindling resources of quality timber made manufacturers to look for alternatives. Species such as Rubber -"Hevea brasiliensis" were found to be good alternatives once treated against "Borer" attack. While expensive ...

Reverse running of standard centrifugal pumps as turbines (PAT), or more particularly pump-motor (PM) sets as turbine-generator (TO) sets had been advocated for some time, especially for mini/micro-hydro applications. This ...

First stage of Tea manufacture is plucking. This may be done in two ways, "Pluck and select" OR "Select and pluck - called selective plucking". First method can use simple machines, such as grass trimmers even, and ...

This paper presents a literature review done on Cryogenic cooling, Liquid Nitrogen Cooling(LNC), and 'Chilled Air and Minimum Quantity Lubrication' (CAMQL) cooling methods used in machining operations, targeting to recognise ...

A country must produce what its people want, or more, for it to develop or even to survive. Academic knowledge alone cannot produce any tangible product on its own. This when converted to practically useable knowledge, ...

Birds use a simple technique to get airborne. However, mankind is still not capable of using this simple technique successfully in any applications. In this project, it has been investigated about bird flight kinematics ...

Vapour compression refrigeration is abundantly used as the method of refrigeration for refrigerated food transport applications But issues such as higher weight, noise, regular maintenance requirements, higher installation ...

Government of Sri Lanka desperately needs more and more economical, feasible and fruit full investment projects to enhance the economy of the country. Present growth rate of economy is nearly 8 per cent and to achieve ...