HEAT RECOVERY

WASTE HEAT RECOVERY

For reducing consumption and polluting emissions.
It designs, builds and manages systems for recovering residual heat from process fluids and industrial waste to generate useful energy (thermal, electrical, cooling).

GENERATION OF ELECTRICITY FROM WASTE HEAT AND PRESSURE DROPS

Converts low-temperature thermal energy into electrical energy using ORC technology.

MONITORING AND OPTIMISATION OF ENERGY PERFORMANCE

Designs and implements customised process controls to optimise energy performance in real time. Provides complete, turnkey solutions for measuring electrical, thermal and cooling energy.

SERVICES: CONSULTANCY FOR EFFICIENCY IMPROVEMENT AND ENERGY DATA MEASUREMENT AND ANALYSIS

The consultancy covers aspects such as technical and economic feasibility studies, support for Energy Managers and analysis of the applicability of incentives and financing. For energy measurement and data analysis, services are offered for data collection, analysis, report writing and design of the optimal configuration for measuring energy flows.

The statistics

data referred to calendar year 2024

10,05 GWh

recovered heat

2,25 kton

CO₂ saved

Case History

Heat recovery in the steel industry

Heat recovery system from hot rolling mill flue gases

Use: production of steam for process and heating purposes
Combustion fumes IN-OUT temperature: 410 – 160 °C
Recovery capacity: 7,500 kg/h of steam at 10 bar(g)

CO₂ emission reduction: 8.600 t/a

Heat recovery in the steel industry

Production of superheated steam from annealing furnace fumes

Use: steam production for process use
IN-OUT temperature of combustion fumes: 330-160 °C
Recovery capacity: 9,400 kg/h of steam at 7.5 bar(g) 270°C + 450 kW of hot water
Natural gas savings: 2,850,000 Sm³/a
CO₂ emission reduction: 5,600 t/a

Heat recovery in the chemical industry

Stand-alone flue gas heat recovery system applied to an existing 24 MW electric gas turbine equipped with HRSG

Use: preheating of degasser feed water
Flue gas IN-OUT temperature: 150-80 °C
Recovery capacity: 7 MW
Natural gas savings: 4,500,000 Sm³/a
CO₂ emission reduction: 8.900 t/a

Heat recovery with PdC in the food industry

Hot water production for process heating

Technology: heat pump, R1234ze
Heat source: tower water, 32->25 °C
Heat load: hot water, 58->73 °C
Production capacity: 650 kW
COP: 4.1

Efficiency and cogeneration in the automotive sector

Heat recovery for high-efficiency cogeneration (4.8 MWEL gas turbine)

Steam production: 10 t/h @ 18 bar
Hot water production for heating: up to 3.2 MW
Hot water production for cooling (via absorber): up to 2.5 MW
Make-up water preheating: up to 1.0 MW
Peak production: 9.0 MW total (flue gases @ 40 °C)

Waste Heat 2 power industry

Electricity generation from waste heat

Technology: Organic Rankine Cycle (ORC)
Thermal source: flue gases, hot/superheated water or other carriers
Recovery capacity: depending on the thermal source and temperature level
Efficiency: from 10% (for low-temperature fluids, e.g. 100 °C) to 20% (for high-temperature fluids, e.g. 300 °C)
Collaboration with ORC manufacturers

Recovery from pressure reduction in the tyre industry

Electricity generation from steam pressure drop energy

Technology: twin screw turboexpander
Heat source: steam
Electricity generation capacity: 132 kW
Generation voltage: 400 VAC
Pressure drop: 18 bar(g) -> 4 bar(g)
Steam flow rate: 2 – 4 t/h