Direct Contact Heaters
Direct Contact Heater is an alternative heat exchanger to plate and tubular heaters. contact heaters
DCH will work with counter current heat exchange principle. DCH has high heat transfer co-efficient. In the DCH latent heat and part of sensible heat will be utilized for heating duty.
DCH will work with an approach temperature of 0-2°C, whereas tubular heaters and plate heat exchangers will work with 5-7° C approach temperature.
Advantages Of DCH:
- Counter current operation and high heat transfer co-efficient.
- Can be run with bled vapours and saving of exhaust steam.
- Effective utilization of the latent heat and part of the sensible heat.
- Suitable for heating with low pressure and temperature vapours.
- No condensate extraction system is required.
- Low head juice pumps and less power consumption.
- 0-2° C approach temperature.
- Suitable for complete automation.
- Can be operated at pressure and vacuum.