Fundamentals of Heat and Mass Transfer
7th Edition
ISBN: 9780470917855
Author: Bergman, Theodore L./
Publisher: John Wiley & Sons Inc
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Chapter 1, Problem 1.46P
A blood warmer is to be used during the transfusion ofblood to a patient. This device is to heat blood takenfrom the blood bank at 10°C to 37°C at a how rate of200 ml/mm. The blood passes through tubing of length2 m, with a rectangular cross section
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In the final stages of production, a pharmaceuticalis sterilized by heating it from 30°C to 75°C as it moves at0.2 m/s through a straight thin-walled stainless steeltube of 12.7-mm diameter. A uniform heat flux is maintained by an electric resistance heater wrappedaround the outer surface of the tube. If the tube is 10 m long, what is the required heat flux? If fluidenters the tube with a fully developed velocity profile and a uniform temperature profile, what is thesurface temperature at the tube exit? Fluid properties may be approximated as ? = 1000 kg/m3, cp =4000 J/kg K, ? = 2 x 10-3 kg/s m, k = 0.8 W/m K, and Pr = 10.
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Chapter 1 Solutions
Fundamentals of Heat and Mass Transfer
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- i need the answer quicklyarrow_forward8.21 WP In the final stages of production, a pharmaceutical is sterilized by heating it from 25 to 75°C as it moves at o.2 m/s through a straight thin- walled stainless steel tube of 12.7-mm diameter. A uniform heat flux is maintained by an electric resistance heater wrapped around the outer surface of the tube. If the tube is 10 m long, what is the required heat flux? If fluid enters the tube with a fully developed velocity profile and a uniform temperature profile, what is the surface temperature at the tube exit and at a distance of o.5 m from the entrance? Fluid properties may be approximated as p = 1000 kg/m³, c, = 4000 J/kg · K, µ = 2 × 10-3 kg/s · m, k = 0.8 W/m · K, and Pr = 10.arrow_forwardWater going into a pipe with a tempeture of T1 and going out T2 . ambient tempeture is T0. Develop an expression for T2 ( based on heat transfer) Length of the pipe Lh0 - convective heat transfer coefficient of the airhW -convective heat transfer coefficient of the waterk- pipe thermal conductivity (W/m·K)d – pipe diameter Use any other varilable that you need and can be found online easily .arrow_forward
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