Multiply the heat quantity calculated according to the usual calorimetry procedure by the far-infrared efficiency ρ to obtain the total heat quantity.
The calculation of heat quantity for far infrared heating is difficult to determine simply, but it can generally be calculated using the following formulas. Ideally, it should be calculated based on the formula for radiative heat transfer, but it must take into account factors such as the emissivity (absorption rate) of the heater and non-heated objects, the heat receiving area, and the angle of heat reception, making it quite challenging in practice. Therefore, the total heat quantity is obtained by multiplying the heat quantity calculated according to the usual heat calculation procedure by the far infrared efficiency ρ. The value of ρ can be determined from empirical data in the range of 0.6 to 0.9. 【Formulas】 ○1. Equipment Power (P) P = P0 × 1.1 to 1.2 (equipment margin) (KW) P0 = Q / 860 (KW) P: Equipment power, P0: Power, Q: Total heat quantity ○2. Calculation of Total Heat Quantity (Q) Q = (Q1 + Q2 + Q3 + Q4 + Q5 + Q6) ρ (Kcal/h) Q: Total heat quantity (Kcal/h), Q1: Sensible heat quantity of the heated object, Q2: Latent heat of moisture evaporation Q3: Heat quantity taken away by the drive part, Q4: Heat quantity flowing out of openings, Q5: Exhaust heat quantity Q6: Heat loss from furnace walls, ρ: Far infrared efficiency For more details, please contact us or download the catalog.
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【Calculation Formula】 ○3. Heat Quantity of the Heated Object (Q1) Q1 = c1 W1 N (t1 - t2) (Kcal/h) c1: Specific heat of the heated object (Kcal/kg·℃), W1: Weight of the heated object (Kg/unit) N: Processing amount of the heated object (units/h), t1: Heating temperature of the heated object (℃) t2: Initial temperature of the heated object (℃) ○4. Latent Heat of Moisture Evaporation (Q2) Q2 = W2 {γ + σ (100 - t3)} (Kcal/h) W2: Amount of moisture removed (Kg/h), γ: Latent heat of evaporation (540) (Kcal/Kg) t3: Initial moisture temperature (℃), σ: Specific heat 1 Kcal/Kg·℃ ○5. Heat Quantity of the Drive Unit (Q3) Q3 = c2 W2 S × 60 (t3 - t4) (Kcal/h) c2: Specific heat of the drive unit (Kcal/h), W2: Weight of the drive unit (Kg/m), S: Conveyor speed (m/min), t3: Heating temperature of the drive unit (℃) t4: Initial temperature of the drive unit (℃) ○6. Heat Quantity from the Opening (Q4) Q4 = c3 A1 υ × 60 × 60 (t5 - t6) (Kcal/h) c3: Specific heat of air (Kcal/m3·℃), A1: Opening area (m2) ● For more details, please contact us or download the catalog.
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We are a specialized manufacturer of far infrared heaters and heating devices. We offer a wide variety of heaters suitable for industrial heating. For clean heating and tact operation or fixed furnaces, we have panel heaters; for continuous heating via conveyors, we provide straight heaters; for precise temperature control or heating small components, we offer ceramic heaters; and for insulation or low-temperature heating, we have space heaters. Far infrared heaters are useful for heating, curing, and drying.
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