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Heat Transfer
Time Constant in Heat Transfer Formulas
Time Constant is defined as the total time taken for a body to attain final temperature from initial temperature. And is denoted by 𝜏. Time Constant is usually measured using the Second for Time. Note that the value of Time Constant is always negative.
Formulas to find Time Constant in Heat Transfer
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Time Taken by Object for Heating or Cooling by Lumped Heat Capacity Method
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Time Constant of Thermal System
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Heat Transfer formulas that make use of Time Constant
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Temperature of Body by Lumped Heat Capacity Method
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Initial Temperature of Body by Lumped Heat Capacity Method
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Temperature Response of Instantaneous Energy Pulse in Semi Infinite Solid
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Temperature Response of Instantaneous Energy Pulse in Semi Infinite Solid at Surface
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Biot Number given Heat Transfer Coefficient and Time Constant
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Fourier Number given Heat Transfer Coefficient and Time Constant
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Biot Number given Characteristic Dimension and Fourier Number
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Fourier Number given Characteristic Dimension and Biot Number
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List of variables in Heat Transfer formulas
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Density of Body
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Specific Heat Capacity
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Volume of Object
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Heat Transfer Coefficient
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Surface Area for Convection
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f
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Temperature at Any Time T
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Temperature of Bulk Fluid
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Initial Temperature of Object
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FAQ
What is the Time Constant?
Time Constant is defined as the total time taken for a body to attain final temperature from initial temperature. Time Constant is usually measured using the Second for Time. Note that the value of Time Constant is always negative.
Can the Time Constant be negative?
Yes, the Time Constant, measured in Time can be negative.
What unit is used to measure Time Constant?
Time Constant is usually measured using the Second[s] for Time. Millisecond[s], Microsecond[s], Nanosecond[s] are the few other units in which Time Constant can be measured.
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