Efficient. Compact. Engineered for Maximum Thermal Performance.
SED’s Direct Contact Heater (DCH) is designed to heat process fluids to nearly the same temperature as the heating vapor, achieving almost zero approach. By utilizing lower-grade heat and improving overall energy efficiency, DCH delivers superior heating performance with minimal maintenance. Its continuous operation, compact footprint, and high energy efficiency make it an ideal solution for modern sugar processing plants.


How It Works
Direct Contact Heating
Juice enters the DCH via the Juice Inlet and encounters available vapors from the Vapor Inlet. Direct contact between the two streams achieves efficient heat transfer with minimal temperature difference.
Flow Guidance & Circulation
Top and bottom baffles guide the flow of juice and vapor, ensuring maximum contact and improved heat transfer. The Bottom Annulus enhances circulation for consistent heating.
Non-Condensable Gas Removal
NCGs are efficiently extracted through the NCG Line to maintain operational efficiency and prevent buildup.
Contaminant Removal
The Catch-All Arrangement captures solids or other impurities, preserving juice quality and maintaining smooth operation.
Key Advantages
Minimal Temperature Approach
Achieves a temperature difference as low as 0–1°C between heating vapor and process fluid, resulting in higher final product temperatures.
Continuous Operation
Designed for uninterrupted operation without the need for frequent cleaning.
Reduced Retention Time
Minimizes sugar losses and improves overall process efficiency.
Zero Head Loss
Lowers pump power requirements, contributing to reduced energy consumption.
Low Maintenance
Minimal cleaning requirements ensure low operational costs and easy integration into sugar plant operations.
Minimal Temperature Approach
Achieves a temperature difference as low as 0–1°C between heating vapor and process fluid, resulting in higher final product temperatures.
Zero Head Loss
Lowers pump power requirements, contributing to reduced energy consumption.
Continuous Operation
Designed for uninterrupted operation without the need for frequent cleaning.
Low Maintenance
Minimal cleaning requirements ensure low operational costs and easy integration into sugar plant operations.
Reduced Retention Time
Minimizes sugar losses and improves overall process efficiency.
Salient Design Features
Corrugated shell and rib-supported deflectors with inbuilt entrainment separator
High turndown ratio (operate efficiency between 30% - 100% of design flow)
Lightweight structural layout with minimal floor space requirement
Effective NCG removal via counter-flow design and ample vapor space
Suitable for both pressurized and sub-atmospheric vapor conditions

Applications Across the Sugar Industry
SED’s Direct Contact Heater is ideal for:
Raw Sugar Mills
Efficient preheating of juice for evaporation.
Refineries
High thermal efficiency with zero maintenance.
Multi-Effect Evaporation Systems
Compact design for energy-efficient integration.
Large-Capacity Plants
Continuous operation with minimal downtime
Why Partner with SED?
SED’s DCH combines advanced thermal engineering, compact design, and energy-efficient operation to deliver measurable improvements in process efficiency and operational reliability. With real-world performance, continuous operation, and low maintenance, SED ensures your heat exchange processes are optimized for modern sugar production.
Frequently Asked Questions
Revolutionizing Heat Exchange. Setting New Standards.
Optimize thermal efficiency, reduce energy consumption, and ensure uninterrupted operation with SED’s Direct Contact Heater — engineered for compact design, continuous performance, and zero maintenance.
