Process Equipment and Plant Design Length to diameter ratio of most rotary driers is in the range of 10 to 20 4 to 10 1 to 2 20 to 30 10 to 20 4 to 10 1 to 2 20 to 30 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Hoop (circumferential) stress induced in a thin walled 'Horton Sphere' used for the storage of liquid ammonia under pressure is pD/4t pD/6t pD/2t pD/3t pD/4t pD/6t pD/2t pD/3t ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Generally, elliptical dished heads All of these Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m² All of these Resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter Are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D Are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m² ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Triangular pitch tube layout as compared to square pitch in a shell and tube heat exchanger Permits the use of less tubes in a given shell diameter Both B and C Facilitates comparatively easier external cleaning because of large clearance Permits the use of more tubes in a given shell diameter Permits the use of less tubes in a given shell diameter Both B and C Facilitates comparatively easier external cleaning because of large clearance Permits the use of more tubes in a given shell diameter ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Friction factor for turbulent flow in a new pipe is given by f = 0.04/NRe0.16 f = 0.22 NRe0.05 f = 25/NRe f = 16/NRe f = 0.04/NRe0.16 f = 0.22 NRe0.05 f = 25/NRe f = 16/NRe ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In the case of a shell and tube heat exchanger, the logarithmic mean temperature difference Is always more than arithmetic mean value and the geometric mean value May be either more or less than geometric mean and arithmetic mean value depending upon whether the flow of stream is co-current or counter-current Is always less than arithmetic average value Is always less than arithmetic mean value, but more than geometric mean value Is always more than arithmetic mean value and the geometric mean value May be either more or less than geometric mean and arithmetic mean value depending upon whether the flow of stream is co-current or counter-current Is always less than arithmetic average value Is always less than arithmetic mean value, but more than geometric mean value ANSWER DOWNLOAD EXAMIANS APP
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