Calculation of No Heat Loss for Cast Aluminum Heaters

Calculation of No Heat Loss for Cast Aluminum Heaters

Electroformed aluminum heater is an electric heating element that converts electrical energy into thermal energy. How to choose the size (i.e. power) of the electric heater in practical use? Here is a brief calculation that can be used as a reference when selecting cast aluminum heaters in practice:

Due to the relationship between electrical energy and thermal energy, Q discharge=0.24I * I * R * t=0.24Pt (P: in watts W, t in seconds)

The heat absorbed by the heated object is:

Q suction=CM △ t=CM (T1-T0)

Among them: C is the specific heat of the object, cal/g · degrees; M is the mass of the object, in grams; T1 is the heating termination temperature value, degrees; T0 is the starting temperature of heating, degrees

Convert the unit of Q to: Å Q=0.24Pt, with a unit of 0.24 calories/watt · second

Å Q release=0.24 calories/watt · second Pt=0.24 calories/watt · 1/3600 hours Pt=864Pt calories/watt · hour

Å Q release=Q suction Å 864Pt=CM (T1-T0)

In the formula, P is the power of the heating element, in watts (W), t is the power on time, in hours (H)

When selecting cast aluminum heaters in practice, the above formula can be applied, but it should be noted that the result is no heat loss data, and the power value should be increased when selecting. The characteristics of mining hot air furnaces are: heating hot air furnaces have a thermal efficiency of up to 72%, ranking among the top in the same type of drying machinery; The heating hot air stove has a high degree of mechanization, fully automated operation, and no manual labor is required for slag discharge and coal loading; The heating hot air stove operates stably and is easy to operate; It can be used in conjunction with various drying machines and has a long service life, with a grate life of more than ten years; Mining hot blast furnaces can use multiple fuels.

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