Energy analysis and heat recovery opportunities in spray dryers applied for effluent management

摘要: Abstract Thermal dewatering using spray dryers is an energy-intensive process, which recently, applied for removal of water from industrial effluents by evaporation. Reduction energy consumption vital to reduce operating cost in addition sustainable development. In this paper, the modern integrated savings scheme proposed four parts. (i) An advanced saving configuration named as a hybrid heat recovery system dryer, (ii) Developed rigorous but simple mathematical model direct and system, (iii) A generalized performance indicator investigation environmental impact on called ‘Sustainability Index’ thermal systems demonstrated finally (iv) The methods are explained with help illustrative example taken literature. Up 80% recirculation ratio, enhancement, Sustainability Index significantly higher than while both approaching towards nearly same value. Furthermore, increasing moisture into drying chamber also increases, reduces requirement mass flow rate dry hot air due capacity recirculated moisture. reduction high-grade blower power net supplied. Dryer efficiency sustainability index, show strong dependency amount dryer.