CETAL
You electrothermics
industrial partner
Power Calculation
Heating occurs with change of state:
Legend :
- P: Power in KW
- Q1 = Heat quantity to heat the product to the melting temperature
- Q2 = Heat quantity to change state
- Q3 = Heat quantityto heat the product to its final temperature
- Cpi: Specific heat on average heat (KJ / Kg ° C)
- Cpf: Specific heat at final temperature (KJ / Kg ° C)
- Δθ1: Temperature change of state - initial temperature (° C)
- Δθ2: Final temperature - temperature change of state (° C)
- Lf: Latent merger heat
- t: Time of temperature rise (s)
Heating without change of state:
Legend :
- P: Power (KW)
- m: Mass heated (kg)
- PC (1): Specific heat (KJ / kg. ° C)
- Cp (2): Specific heat (kcal / kg. ° C)
- Δθ: Initial temperature - initial temperature (° C)
- Q: Heat quantity
- t: Time of temperature rise
- 1.2: Safety factor
Heating fluid (liquid or gas) in circulation:
Legend :
- P: Power in KW
- D: Flow (m3 / h) ρ
- ρ: Density (kg / m3)
- PC (1): Specific heat (KJ / kg. ° C)
- Cp (2): Specific heat (kcal / kg. ° C)
- Δθ: Temperature outlet - inlet temperature (° C)
