An oil is being cooled in certain equipment. It was observed that a 7.94 bmin of hot oil enters a negligible diameter thickness metal pipe of D= 25 mm. At the same time same mass of cooling water flows through the annular space between the pipe and a larger concentric pipe; the oil and water moving in opposite directions. The oil enters at 420 K and is to be cooled to 320 K. If the water enters at 290 K, what length of pipe will be required? Take coefficients of 1.6 kWim? K on the oil side and 3.6 KWim? K on the water side and 2.0 kJ/kg K for the specific heat of the oil. a. 1.9 m & 3.5 m b. 4.8 m d. 2.7 m

What is meant by turndown ratio?

Hand Boiler Popular Culture Supporting Material/Supporting Point Supporting Material/Supporting Point Supporting Material/Supporting Point Please include your sources if used.

For a batch rectifier with appreciable column holdup, why do tray compositions change less rapidly than they do for a rectifier with negligible column holdup, and why is the separation improved?

how the ultrasound was used as an active heat transfer??

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What is an interlinked system of stages?