Aheat exchanger (80 horizontal tubes, 2.44 m long with a 25mm od) is made available for steam raising. estimate how much saturated steam can be raised at the following pressures, using levy or mcadams where appropriate. 0) 0.6 mpa (i) 0.7 mpa (iii) 0.8 mpa the tube wall is kept at 180°c by its internal fluid, and water enters at its boiling point

Fluids at rest possess no flow energy. a)- true b)- false

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i. d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.