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In a specific type of heat exchanger, a very hot jet of air is cooled from 145 degrees centigrade to 100 degrees centigrade by a cold stream of water. The water temperature must not rise By more than 12 degrees centigrade. Find 1. How much cooling water in kg/s is required to cool 2.5 kg/s of air and 2. What the rate of heat transfer between the two fluids is.
what were the flaws in your experiment? what sort of reproducibility does your experimental procedure yield? 4. how
Concrete has a density of 2500 kg/m3 and a compressive strength of 30 MPa. What is the maximum height of a column of concrete that can support its own weight? Does the radius of the column matter?
consider a simple brayton cycle using air as the working fluid has a pressure ratio of 12 has a maximum cycle temp of
a 20-m3 tank contains nitrogen at 23degc and 600 kpa. some nitrogen is allowed to escape until the pressure in the tank
water flows at 50oc inside a 2.5-cm-inside-diameter tube such that hi 3500 wm2 oc. the tube has a wall thickness of 0.8
a refrigeration engineer has designed a steady-flow no work interaction device that separates a continuous flow of 100
water vapor is cooled in a closed rigid tank from 520 c and 100 bar to a final temperature of 270 c. determine the
Steam enters a diffuser operating at steady state with a pressure of 14.7 psi, a temperature of 300F, and a velocity of 500ft/s. Steam exits the diffuser as a saturated vapor with negligible kinetic energy. Heat transfer occurs from the steam to its ..
measuring fracture toughnessthe aim of this demonstration is to use measurements of the load required to propagate a
Draw a graph of system head and fluid power against flow rate on one sheet of graph paper, using the values determined in(c)
A process with Gp= 2/(2s+1) and Gd=1/(2s+1) experiences a disturbance step change of magnitude 5. The SP remains constant. If a P-controller alone with Kc=1 is used and Ga=Gs=1, then what is the output variable, delta Y(t) versus time?
Calculate the yield stress of the material and the force required to produce yield - determine the bulk modulus of the material.
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