A fluid is heated by flowing inside a 60-mm-diameter and 30-m-long circular tube with a flow rate of 0.6 kg/s. The surface temperature of the tube is maintained at 160℃. Evaluating the average fluid properties to be µ = 0.031 kg/m ∙ s, Pr=480, k = 0.125 W/m ∙ K, cp = 2131 /kg ∙ K. If the fluid enters at 25℃, 1) What is the outlet temperature? 2) What is the total heat transfer rate for the tube?

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.