Aone shell and two tube type heat exchanger has an overall heat transfer coefficient of 350 btu/h · ft2 · °f. the shell side fluid has a capacity rate of 25,000 btu/h · °f, while the tube side fluid has a heat capacity rate of 50,000 btu/h · °f. the inlet temperature on the shell side and tube side are 250°f and 100°f, respectively. if the total heat transfer area is 150 ft2, determine the following: the heat transfer effectiveness. the actual heat transfer rate in the heat exchanger

The maximum shear stress and maximum flexural stress occur at the same location along a beam subjected to a non-uniform bending load. a)-trune b)- false

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj

List 3 options on how to reduce knocking problens during engine process,