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Now consider the cooling process. It takes place in a heat exchanger (HX). Warm air. at 75 F, is flows into one side of the HX and exits at 60 F. Chilled water at 50 F enters the other side of the HX and exits at 55 F. What water mass flow rate is required? Report your answer in gpm (gallons/minute). The analysis you just performed assumes no heat exchange between the HX and its surroundings. Since the surroundings are at the same temperature of the building (nominally 72 F in the summer), this is not true. Assume a 5000 Btu/hr heat loss from the HX and compute a new value for the water mass flow rate. Again report your answer in gpm.
the lower end of the 30 kg slender rod is displaced a small amount and released from the rest. determine the natural
Knowing that the modulus of elasticity of brass is 105 GPa, determine the magnitude of the load P for which the deflection of the plug is 1,25 mm downward.
A hydraulic shear applies 2000 lb force to a wedge. It is used to shear plate steel to rough size. The shear has a 1/4 inch thick cutting blade with a 45 degree slope. What is the ideal mechanical advantage of the wedge?
A mixture of dry air and water vapor is at a temperature of 21C under a pressure of 101.3 kPa.The dew point temperature is 15C.(Ps= saturation pressure at 15C=1.7044 kPa;Pd=saturation pressure at 21C=2.4861 kPa) find humidity ratio and relative hu..
A steel cylinder with an internal radius of 50mm is designed to carry a maximum stress of 400 MPs. It is subjected to an internal pressure of 80 MPs.(i) Determine the required wall thickness.
you are designing a remote-area power supply based on a miniature wind turbine that is 20 efficient. meteorological
Draw the block diagram of the uncontrolled seat Plot the open loop displacement response of the uncontrolled seat to a step input
bullet a from west with a mass of 175g and speed of 550ms and bullet b from east with a mass of 150g and speed of 200ms
a six-station automatic assembly line has an ideal cycle time of 12 sec. downtime occurs for two reasons. first
a disk has a mass of 4kg and a radius of 90mm, it is at rest when it is placed in contact with the belt, which moves with a constat speed (v =15m/s). knowing that friction is .25 between the disk and the belt. Determine the number of revolution by..
module fea - finite element analysisnbspquestion 2 method to assess the value of your analysis outputnbspa what is the
A ball with a mass of 0.25 kg is thrown vertically upward with an initial velocity of 10 m/s. What is the velocity of the ball when it reaches the highest point?
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