Process integration and waste heat recovery in Lithuanian and Danish industry. Case Study: Textile company DROBE

摘要

A process integration study has been made in the wool company 'DROBE', located in Kaunas, Lithuania. The study is limited to the finishing workshop because this workshop is by far the largest consumer of thermal energy at the factory. Theoretical and practical heat exchanger networks are generated, and several possibilities of waste heat utilisation have been evaluated. By local optimisation of two machines with the largest energy consumption in the finishing workshop it will be possible to save 11.1% of thermal energy equivalent to about 1,560 MWh/year. With the current expenses for production of thermal energy this amounts to 125,000 Lt/year. (1 kWh = 0.08 Lt). (au)