The results obtained are then utilized in the design of the constant stress blade. The performance of the cases was then checked and found to be within satisfactory ranges. Reducing the cross sectional area reduces the mass of blade and hence reduces the centrifugal stresses. The other five are for reducing cross sectional area blades of varying curvature. One for constant cross sectional area blade as a reference. Six types of blades were studied in this paper.

One way to tackle this is by using twisted blades and/or using variable cross-section area blades. The centrifugal force is one of the problems that face the designers of blades especially the long ones. Such blades suffer from different types of loadings leading to different types of stresses, like tensile and bending stresses due to centrifugal force and steam flow loading. 3, December (2007) ISSN 1813-7822 76 Design of a Constant Stress Steam Turbine Rotor Blade Abstract This paper presents a design procedure for a constant stress low pressure steam turbine blade.

Journal of Engineering and Development, Vol.

Mjesec boje krvi by Tina Fras