Efficient. Compact. Engineered for Maximum Heat Recovery.
SED’s Shell & Tube Condensate Heater, also known as a Duplex Heater, is a high-efficiency liquid - liquid heat exchanger designed for juice heating prior to clarification in sugar processing plants. Its multi-pass configuration enables compact installation, maximizes heat transfer, and reduces operational heating surface requirements.
Built to handle variable flow rates and thermal loads, the heater improves thermal efficiency, reduces steam consumption, and optimizes condensate utilization - delivering a sustainable, energy-efficient solution for modern sugar mills.


HowIt works
Series Installation for Maximum Recovery
Condensate heaters are installed in series to extract the maximum available heat from the condensate.
Countercurrent Flow
Juice flows inside the tubes while condensate flows outside, ensuring countercurrent contact and maximizing heat transfer.
Multi-Pass Layout
Baffles guide the juice and condensate through multiple passes, increasing contact with heated surfaces.
Efficient Thermal Absorption
As juice travels through the tubes, it continuously absorbs heat from the condensate, raising its temperature prior to clarification.
Compact Design
The multi-pass configuration achieves high heat transfer with reduced surface area, requiring minimal floor space.
Key Advantages
Maximized Condensate Heat Recovery
Efficient preheating of juice reduces energy losses and improves overall thermal efficiency.
Reduced Steam Consumption
Lower approach temperatures and optimal heat transfer minimize additional steam requirements.
Compact & Space-Saving
Multi-pass design requires less footprint without compromising heating surface.
Enhanced Condensate Utilization
No heat is rejected to the cooling tower, leaving surplus cooled condensate available for make-up water.
Supports Efficient Vapor Management
Maximizes vapor availability from later effects for other consumers within the plant.
Maximized Condensate Heat Recovery
Efficient preheating of juice reduces energy losses and improves overall thermal efficiency.
Enhanced Condensate Utilization
No heat is rejected to the cooling tower, leaving surplus cooled condensate available for make-up water.
Reduced Steam Consumption
Lower approach temperatures and optimal heat transfer minimize additional steam requirements.
Supports Efficient Vapor Management
Maximizes vapor availability from later effects for other consumers within the plant.
Compact & Space-Saving
Multi-pass design requires less footprint without compromising heating surface.

Applications Across the Sugar Industry
SED’s Shell & Tube Condensate 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 combines advanced heat exchanger design, multi-pass optimization, and process expertise to deliver measurable gains in energy efficiency and condensate utilization. From concept to commissioning, our solutions enable sustainable, cost-effective operations while ensuring consistent sugar quality and plant performance.
Frequently Asked Questions
Revolutionizing Heat Recovery. Setting New Standards.
Optimize energy efficiency, condensate utilization, and sustainable operations with SED’s Shell & Tube Condensate Heater - engineered for reliable performance, compact design, and superior thermal efficiency.
