- New system results in 25% improvement in electrical efficiency
- Annual Energy saving measures of 3,000 MWh - equivalent to the energy required by 150 homes
- CO2 output reduced by 1,600 tonnes per year
‘Waste heat to power’ specialists Heatcatcher Ltd have announced that their first Heatcatcher System, at the Thrislington lime plant near Durham, is now fully operational.
The system, which cost £1.3million to design, build and deliver, is on course to deliver a return on the investment within five years. Early data indicates that it can be expected to generate net power of around 3,000MWh annually, equivalent to 7,500 hours of carbon-free electricity. In total, CO2 output will be reduced by 1,600 tonnes per year.
Steetley Dolomite are keen to make further investments across its two plants after securing a £4m funding package from HSBC’s Nottinghamshire Commercial team.
Lime and cement manufacture is currently one of the most energy intensive and greenhouse gas emitting industrial processes in existence. The industry contributes roughly 5% of global man-made CO2 emissions, nearly three times the amount generated by air travel worldwide.
The Heatcatcher System works by using the waste heat to vaporise a refrigerant, which in turn drives a rotary generator. The variable frequency and voltage output of the generator are converted to match the grid, and this electrical output is fed back into the plant’s power supply. Every stage of the process has been calibrated to minimise energy losses within the system. In total, each plant fitted with the system recovers 4MWh of thermal power, and converts it to 0.5 MW of cheap, low-carbon electrical power.