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Shini STM-910W - Pump Performance; Reference Formula of Mould Controllers Model Selection

Shini STM-910W
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1.3.2 Pump Performance
Picture 1-1Pump Performance
1.3.3 Reference Formula of Mould Controllers Model Selection
Heater Power (kW) = mould weight (kg) × mould specific heat (kcal/kg) ×
temperature difference between mould and environment () × safety coefficient
/ heating duration / 860
Note: safety coefficient can select a value from 1.3 to 1.5.
Flow Rate (L/min) = heater power (kw) × 860 / [heating medium specific
(kcal/kg) × heating medium density (kg/L)×in/outlet temperature difference
()× time (60)]
Note: Water specific heat =1kcal/kg
Heating medium oil specific heat =0.49kcal/kg
Water density =1kg/L
Heating medium oil density =0.842kg/L

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