What Is Condensate Recovery?
When steam releases its latent heat in a heat exchanger, process vessel, or heating coil, it condenses back into hot water — called condensate. This condensate retains approximately 20–25% of the energy originally in the steam and is pure, treated hot water.
Condensate recovery systems collect this hot condensate and return it to the boiler feedwater system — saving energy, water, and chemical treatment costs.
PureSys India supplies complete condensate recovery systems including pumps, tanks, and instrumentation.
Why Recover Condensate?
- Energy savings: Hot condensate at 90°C requires far less fuel to raise to steam temperature than cold make-up water at 25°C
- Water savings: Reduces make-up water consumption — significant in water-scarce regions of India
- Chemical savings: Condensate is already treated — less boiler water chemical dosing needed
- Boiler efficiency: Higher feedwater temperature improves overall boiler efficiency
Industry data shows that recovering just 10°C more of feedwater temperature reduces fuel consumption by approximately 2%. A plant returning 80% of condensate vs 20% can save 15–20% of fuel costs.
Condensate Recovery System Components
Steam Traps
The starting point — properly functioning steam traps discharge condensate efficiently without steam loss, making condensate available for recovery.
Condensate Return Lines
Insulated pipework returns condensate from process points back to the boiler house. Design must account for flash steam formation when condensate pressure drops in the return line.
Flash Vessels
When high-pressure condensate enters a lower-pressure return system, it flashes to steam. Flash vessels separate this low-pressure flash steam for useful re-use in low-pressure heating or feedwater preheating.
Condensate Recovery Units (CRUs)
Where gravity return is not possible, electric or steam-powered condensate recovery pumps collect and pump condensate back to the boiler. PureSys India supplies both electric and steam-powered CRUs.
Deaerators
Deaerators remove dissolved oxygen and CO₂ from the feedwater mix of recovered condensate and make-up water — preventing boiler corrosion.
Typical Return on Investment
Most condensate recovery projects in India achieve payback in 6–18 months depending on fuel cost, plant operating hours, and the percentage of condensate currently being returned.
PureSys India Condensate Recovery Services
We offer complete condensate recovery solutions including system audit, engineering design, equipment supply, and installation. View our condensate recovery products, learn about our condensate recovery services, or contact our engineers.