A temperature sensor may be modeled as a sphere having a thermal conductivity of 91 W/m-K, a density of 8900 kg/m³, and a specific heat of 444 J/kg-K. If the sphere diameter is 3 mm, determine the time required for the sensor to respond to 95% of a step change in the temperature of the convective environment. The heat transfer coefficient is 1000 W/m²-K.
A temperature sensor may be modeled as a sphere having a thermal conductivity of 91 W/m-K, a density of 8900 kg/m³, and a specific heat of 444 J/kg-K. If the sphere diameter is 3 mm, determine the time required for the sensor to respond to 95% of a step change in the temperature of the convective environment. The heat transfer coefficient is 1000 W/m²-K.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.17P: The heat transfer rate from hot air by convection at 100C flowing over one side of a flat plate with...
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