WHR on the rise
Dr Clark takes the theme of waste heat recovery for this month’s Technical Forum and investigates current available solutions for the cement industry. He also touches upon current themes around the topic, such as is it an attractive option for your plant? When to install the technology? And how best to use the waste heat that is generated?
The organic Rankine cycle method of WHPG is efficient with regard to utilisation of low- and
medium-temperature waste heat, whereas steam-based Rankine systems are suited to generating from
medium- and high-temperature waste heat. The Kalina cycle offers a new WHPG method
Power generation from this waste heat is an increasingly popular topic and FLSmidth is introducing new technology in this area. However, the beneficial use of the waste heat flowing out of a cement kiln in other ways should not be forgotten. This heat can be used in the cement-making process for drying raw materials or, alternatively, for district heating purposes.
Waste heat power generation (WHPG) is an increasingly common theme in ICR and also at Cemtech conferences. With rising costs for thermal and electrical energy, it is no wonder that there is interest in minimising the waste of such energy.
