Design a Lapple conventional cyclone to function as a precleaner. The particles have a density of 1250 kg/m3, and have the same size distribution as in Problem 4.4, but the air is at 150 °F and 1 atm, and is flowing at 2000 acfm. The cyclone need be only 65– 75% efficient. Specify your final choice of body diameter and the corresponding efficiency. Cooper, C. David. Air Pollution Control: A Design Approach (p. 156). Waveland Pr Inc. Kindle Edition.

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan