Q4: A thermometer having first-order dynamics with a time constant of 1 min is placed in a temperature bath at 100 °F. After the thermometer reaches steady state, it is suddenly placed in a bath at 110 °F at t = 0 and left there for 1 min, after which it is immediately returned to the bath at 100 °F. (a) Draw a sketch showing the variation of the thermometer reading with time. (b) Calculate the thermometer reading at t = 0.5 min and at t = 2.0 min.

Q4: A thermometer having first-order dynamics with a time constant of 1 min is placed in a temperature bath at 100 °F. After the thermometer reaches steady state, it is suddenly placed in a bath at 110 °F at t = 0 and left there for 1 min, after which it is immediately returned to the bath at 100 °F. (a) Draw a sketch showing the variation of the thermometer reading with time. (b) Calculate the thermometer reading at t = 0.5 min and at t = 2.0 min.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter19: Special-purpose Outlets-water Pump, Water Heater

Section19.2: Water Heater Branch Circuit

Problem 8R: For residential water heaters, the Consumer Product Safety Commission suggests a maximum temperature...

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