The Jetomat recompresses low-pressure and flash steam with high-pressure motive steam, so you reuse energy you are paying for today — and vent less of it.
Exploded view
An actuator moves the spindle of the variable nozzle — modulating motive steam to hold the discharge pressure on setpoint as the load changes.
Pneumatic or electric. It moves the nozzle spindle.
Drives the actuator, and with it the spindle, to the position the control signal calls for.
Links the actuator to the variable nozzle inside the body.
Adjusts steam flow and pressure dynamically, keeping performance and efficiency optimal.
Motive steam and low-pressure steam enter the body here.
The high-velocity jet of motive steam draws the low-pressure steam in.
Motive and low-pressure steam mix, kinetic energy is transferred, and the mixture is compressed to a higher pressure and temperature.
The steam leaves ready for reuse in the process.
Key function
A thermocompressor recycles low-pressure steam by compressing it with high-pressure steam. Its pressure and temperature rise, so it can be used again within the system.
Recirculates steam and condensate within the heating process to maximise energy efficiency.
Compresses low-pressure flash steam to a higher pressure so it can be reused in the process.
Acts as a desuperheater and saturated-steam generator with high-precision temperature control.
Operating principle
A high-velocity jet of motive steam does the work of a compressor — and the variable nozzle keeps it on target as the load changes.
The motive-steam jet draws low-pressure steam into the thermocompressor.
The two steams mix in the diffuser, where kinetic energy is transferred.
The mixed steam leaves at a higher pressure and temperature, ready for reuse.
As the load changes, the variable nozzle holds the discharge pressure on setpoint.
Load changes. The variable nozzle holds the discharge pressure on setpoint.
Illustration
From our Thermal Academy
How it works from first principles — nozzle, entrainment ratio, fixed vs variable — in our free academy.
Thermocompressors: fixed vs variableRecompresses and recirculates steam and condensate, so the live steam does less of the work.
Made in Germany by Baelz. Baelz reports that many of its ejectors are still in operation three decades after installation.
In a Baelz recirculation example at an edible-fat plant, output rose 18% (one extra cycle a day). Baelz cites up to 15% higher performance from recirculation in general.
Payback depends on the application and the fuel price. Send us your steam data and our engineers size the Jetomat on your numbers.
Removes the need for additional circulation pumps and complex hydraulic balancing.
Integrates into new and existing systems for steam, hot water and thermic fluid.
Lower greenhouse-gas emissions, helping cut your carbon footprint and meet sustainability goals.
Maximises energy recovery when combined with flash vessels and pressurised condensate systems.
Case studies
Real-world implementations of Jetomat thermocompressors delivering measurable results across industries.
UPL Ltd.’s project won CII’s ‘Most Innovative Project Implemented’ award (General Category) at the CII Energy Awards 2019, the 20th National Award for Excellence in Energy Management, Hyderabad. i-Kcal supplied and commissioned the variable-nozzle Jetomat thermocompressor that recovers waste flash steam to generate 3.5 bar steam.
A plant producing high-volume corrugated sheets for packaging cut fuel use from 136 to 108 kg per ton in the best month, without disrupting production, as fuel costs rose.
A global tyre manufacturer uses Jetomat to recover flash steam, repressurising 1 barg low-pressure vent steam to 3 barg for process use.
A thermocompressor (steam jet ejector) uses high-pressure motive steam to entrain and compress low-pressure or flash steam, raising its pressure and temperature so it can be reused in the process instead of being vented.
Baelz quotes direct steam savings of 10% to over 30% in compression. Published Baelz cases: about 15% in textile washing and drying (Turkey) and about 32% on the dryer section of a cardboard maker in Bursa (Turkey), as reported by the customer.
The Jetomat has a variable nozzle driven by a pneumatic or electric actuator. It modulates motive-steam flow to hold the discharge pressure on setpoint as load changes, which a fixed-nozzle ejector cannot do efficiently across the load range.
Controllable vs fixed ejectors: why modulation mattersYes, Jetomat® units. i-Kcal repairs and refurbishes Jetomat® thermocompressors in Pune: we inspect the unit, overhaul or replace worn parts such as the nozzle and spindle, service the actuator and re-commission it on your process. Send us the nameplate data, size and steam conditions and our engineers will plan the job. An older thermocompressor of another make can be replaced with a variable-nozzle Jetomat®.
Jetomat® repair & refurbishmentTell us about your process and your steam conditions, and our engineers will get back to you.
