How to Calculate Temperature & Time of Heating Element

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SUMMARY

This discussion focuses on calculating the temperature and time for heating elements using SWG 16 heating wire with specific resistivity, density, and resistance values. The user seeks assistance in building 2.5 kW and 3.5 kW heating elements and requires formulas to determine the temperature increase over one hour, the calories of heat generated, and the time required to reach temperatures of 800°C and 1000°C. Key calculations involve the resistance of the wire and the power output based on the specified heating requirements.

PREREQUISITES
  • Understanding of electrical resistance and Ohm's Law
  • Knowledge of thermal dynamics and heat transfer principles
  • Familiarity with power calculations in electrical systems
  • Basic proficiency in using formulas for temperature and energy calculations
NEXT STEPS
  • Research the formula for calculating temperature rise in heating elements
  • Learn how to calculate heat energy generated using the formula Q = mcΔT
  • Study the relationship between power, resistance, and temperature in heating elements
  • Explore the thermal properties of materials used in heating applications
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Electrical engineers, thermal system designers, and anyone involved in the design and calculation of heating elements for industrial or commercial applications.

blazerman
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Heating Wire having the following Data :
SWG 16(1.63mm)
Specific Resistivity = 1.45 ohms-mm-3
Density = 7.1 gm-cm-3
Resistance = 0.685 ohms/Meter
Weight = 15 Gram/Meter

(a)Please help me in this Project to Build Heating Element using the above wire for Making 2.5 KiloWatt heating Element
(b)Please help me in this Project to Build Heating Element using the above wire for Making 3.5 KiloWatt heating Element

Take ambient & room temperature as 35 degree Centrigrade.
How to Calculate the following :
(a)Please state the formula for Calculating Temperature Raised in 1 hour ?
or alternately What would be temperature of heating element after Heating Element heated for 1 Hour?

(b)Please State the Formula for Calculating, How Many Calories of Heat in generated in 1 hour?
(c)Say if the Temperature is raised till (i)800 degree Centigrade what would be the Kilowatt generated & in what time this Temperature would be raised?

(c)Say if the Temperature is raised till (ii)1000 degree Centigrade what would be the Kilowatt generated & in what time this Temperature would be raised?

Please state the explanation using formulas.
ThankX in Advance
Awaiting your valued Calculations
 
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