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A water to water system is used to test the effects of changing tube length, baffle spacing, tube pitch, pitch layout and tube diameter. Cold water at 25C degree and 100,000 kg/hr is heated by hot water at 100 C degree; also at 100,000 kg/hr. the exchanger has a 12-in-ID shell. Perform calculation on this 1-2 shell and tube heat exchanger for the following conditions, as outlined in the problems, and put together an overall comparison chart. Express trends that are substantiated by the calculations. for example if the tube length increases; tube fluid pressure drop increase; outlet temperature of the cooler fluid increase; outlet temperature of the warmer fluid decreases, ect
3/4-in-OD tubes, 16 BWG laid out on a 1-in triangular pitch; three baffles per meter of tube length. Analyze the exchanger for tube lengths of 1, 1.5, 2 ,2.5 and 3 m
Calculate the torque required at input T and calculate the magnitude and direction of the torque required to hold the gearbox stationary (holding torque Th). Show the direction of the holding torque applied to the shaft with the aid of a sketch.
the wear resistance of a steel shaft is to be improved by nitrogen hardening of its surface. the initial nitrogen
The USEIA reported that in 2011, the average American household consumed 11,280 kWh for the year. On the outskirts of a small city, an energy company has constructed a single, large wind turbine (blade diameter 30 m). A typical average wind speed ove..
An internal combustion engine is driving an electrical dynamometer. The torque arm length is 0.5 m and the force is 200 N. A tachometer indicates that the shaft speed is 3490 rpm. What are the engine torque and power output?
a simply supported circular cylindrical shell of radius a and length l carries its own weight p per unit area that is
a cylinder fitted with a piston is filled with 600 lb of saturated liquid ammonia at 45 degrees f. the piston weighs 1
Carbon fibre reinforced polymers (CFRP have been used extensively in aerospace applications due to their excellent strength to weight and stiffness to weight properties.
What are the two general mass and energy balance equations, written in rate form, and when is it appropriate to use this form? What are the two general mass and energy balance equations, written in magnitude (finite difference) form and assuming unif..
What is the compressor's steady state response when a 30kg absorber with a stiffness of 1.3*10^5 N/m is added to the end of the beam? Please determine how to change the absorber to minimize the response of the beam.
a composite rod consists of two different materials a and b each of length 0.5 l. the thermal conductivity of material
yet another company you sure are popular is interested in hiring you to build something for their use. they want to
a stainless steel tube of 1 cm outer diameter and 1mm wall thickness receives a uniform radiative heat flux of 100 wcm2
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