Heat Transfer Equation:
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The heat transfer calculation determines the amount of thermal energy transferred to or from a substance using the fundamental equation Q = m × Cp × ΔT. This equation is essential in thermodynamics and various engineering applications.
The calculator uses the heat transfer equation:
Where:
Explanation: The equation calculates the thermal energy required to change the temperature of a given mass of substance by a specific amount, based on its heat capacity.
Details: Accurate heat transfer calculations are crucial for designing heating/cooling systems, energy efficiency analysis, material processing, and understanding thermal processes in various engineering and scientific applications.
Tips: Enter mass in kilograms, specific heat capacity in J/kg·K, and temperature change in Kelvin. All values must be valid (mass > 0, specific heat > 0).
Q1: What is specific heat capacity?
A: Specific heat capacity is the amount of heat energy required to raise the temperature of 1 kg of a substance by 1 Kelvin.
Q2: Why use Kelvin for temperature change?
A: Kelvin is used because it's an absolute temperature scale where 1° change in Kelvin equals 1° change in Celsius, but without negative values that could complicate calculations.
Q3: Can this calculator be used for cooling processes?
A: Yes, simply use a negative temperature change (ΔT) value to calculate heat removed from a system.
Q4: What are common specific heat values?
A: Water: 4186 J/kg·K, Aluminum: 897 J/kg·K, Iron: 449 J/kg·K, Copper: 385 J/kg·K.
Q5: How does this relate to phase changes?
A: This equation only applies to temperature changes without phase transitions. For phase changes, latent heat equations must be used instead.