Waste heat recovery solution based on a heat pipe heat exchanger for the aluminium die casting industry

An analysis of the end use energy in EU reveals that industry is one three dominant categories, which accounts for 26.1% final energy. In case aluminium industry, approximately 70% consumption due to heat and thermal processes, highlighting a vast potential waste recovery technologies. Within die casting liquid cast, formed, cooled, further processed within process, includes sub-processes: solubilising, quenching, ageing. presented, process second most intensive factory, ageing treatment furnace 15% process. The generates significant amount heat. heat, with minimal risk cross contamination between streams reduced chance equipment failure, has been achieved via pipe exchanger (HPHE). HPHE designed, manufactured, installed solution exhaust stack. was designed recover up 88.6 kW steady state operating conditions at 400 °C. return on investment evaluated 35 months an expected CO2 emissions reduction 86 tCO2/year when best engineering practices are applied. Furthermore, theoretical modelling tool predict performance developed validated ±20% deviation from experimental results. This paper presents development model allow characterisation technology will act as guideline design HPHEs industry.