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A one-tube pass cross-flow heat exchanger is being considered for recovering energy from the exhaust gases of a turbine-driven engine. The heat exchanger is constructed of flat plates forming an egg-...
See AnswerQ: A shell-and-tube counterflow heat exchanger is to be
A shell-and-tube counterflow heat exchanger is to be designed for heating an oil from 27°C to 82°C. The heat exchanger has two tube passes and one shell pass. The oil is to pass...
See AnswerQ: The walls of a typical industrial furnace used for the heat treating
The walls of a typical industrial furnace used for the heat treating of metals are usually a composite structure made up of layers of firebrick, high-temperature insulation, steel plates, and outer su...
See AnswerQ: A shell-and-tube heat exchanger in an ammonia plant
A shell-and-tube heat exchanger in an ammonia plant is preheating 1132 m3 of atmospheric pressure nitrogen per hour from 21°C to 65°C using steam condensing at 138,000 N/m2. The tubes in the heat exch...
See AnswerQ: In an industrial plant a shell-and-tube heat exchanger
In an industrial plant a shell-and-tube heat exchanger is heating pressurized dirty water at the rate of 38 kg/s from 60°C to 110°C by means of steam condensing at 115°C on the outside of the tubes. T...
See AnswerQ: Determine the excess temperature at one-half of the maximum heat
Determine the excess temperature at one-half of the maximum heat flux for the fluid-surface combinations in Problem 9.3.
See AnswerQ: Liquid benzene 1 specific gravity 5 0.862 is to be
Liquid benzene 1 specific gravity 5 0.862 is to be heated in a counterflow concentric-pipe heat exchanger from 30°C to 90°C. For a tentative design, the velocity of the benzene through the insi...
See AnswerQ: Calculate the overall heat transfer coefficient and the rate of heat flow
Calculate the overall heat transfer coefficient and the rate of heat flow from the hot gases to the cold air in the cross-flow tube bank of the heat exchanger shown in the accompanying illustration on...
See AnswerQ: An oil having a specific heat of 2100 J/kg K
An oil having a specific heat of 2100 J/kg K enters an oil cooler at 82°C at the rate of 2.5 kg/s. The cooler is a counterflow unit with water as the cool- ant; the transfer area is 28 m2, and the ove...
See AnswerQ: Water flowing in a long, aluminum tube is to be heated
Water flowing in a long, aluminum tube is to be heated by air flowing perpendicular to the exterior of the tube. The ID of the tube is 1.85 cm, and its OD is 2.3 cm. The mass flow rate of the water th...
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