Faculty of Mechanical and Manufacturing Engineering
Book 2.1 - Mechanical Engineering and Mechanics
FRI-1.317-1-MEMBT-05
ENERGY OPTIMIZATION OF FLUIDIZED BED DRYING PROCESSES FOR POWDER DETERGENT
Abstract: The paper presents an analysis of fluidized bed drying processes for powder detergent with a focus on energy efficiency and optimization possibilities. The study examines the structural and operational characteristics of fluidized bed dryers and identifies key factors affecting drying quality, such as temperature, vacuum level, air flow rate, inlet moisture, and drying time. A comparison with spray drying technology is made, outlining its advantages and limitations. Several energy optimization measures are proposed, including automation, intelligent sensors for temperature and moisture control, variable frequency drives for fan motors, and heat recovery systems. Implementing these measures can significantly reduce energy consumption and carbon emissions while improving product quality and sustainability of the production process..
Keywords: Fluidized bed dryer, Powder detergent, Energy efficiency, Process optimization
REFERENCES
- Cholakov, G. (2006) Heat and mass transfer in food industry equipment. Sofia: University of Architecture, Civil Engineering and Geodesy (UACEG) ( Чолаков, Г. (2006) Топлообмен и масообмен в апаратите на хранителната промишленост. София: УАСГ)
- Energy Review BG (n.d.) Technologies for reducing energy consumption in industry. Available at: https://www.energy-review.bg/bg/tehnologii-za-namalyavane-na-energiinata-konsumaciya-v-industriyata/2/1471/ (Accessed: 12 July 2025).Energy Review BG (n.d.) Технологии за намаляване на енергийната консумация в индустрията - https://www.energy-review.bg/bg/tehnologii-za-namalyavane-na-energiinata-konsumaciya-v-industriyata/2/1471/ ( Accessed: 12 July 2025)
- Georiev,G., (1982) Process and apparat in chemical industry. Part II. Sofia: Technic Press ( Георгиев, Г. (1982) Процеси и апарати в химичната промишленост. Част II. София: Техника
- Kudra, T. and Mujumdar, A.S. (2009) Advanced drying technologies. 2nd edn. Boca Raton, FL: CRC Press.
- Mujumdar, A.S. (ed.) (2014) Handbook of industrial drying. 4th edn. Boca Raton, FL: CRC Press.
- ZIP Engineering (n.d.) Drying installations - technological solutions for drying. Available at: https://www.zip-engbg.com/node/3 (Accessed: 13 August 2025) (ЗИП Инженеринг (n.d.) Сушилни инсталации - технологични решения за сушене - https://www.zip-engbg.com/node/3 (Accessed: 13 August 2025)).
- ZIP Engineering (n.d.) Project “Dryer for quartz sand”. Available at: https://zip-engbg.com/sites/default/files/2017/01/21/%D0%9F%D1%80%D0%BE%D0%B5%D0%BA%D1%82%20% D1%81%D1%83%D1%88%D0%B8%D0%BB%D0%BD%D1%8F%20%D0%B7%D0%B0%20%D0%BA %D0%B2%D0%B0%D1%80%D1%86%D0%BE%D0%B2%20%D0%BF%D1%8F%D1%81%D1%8A%D0 %BA.pdf (Accessed: 15 August 2025). ( ЗИП Инженеринг (n.d.)
- Проект „Сушилня за кварцов пясък“ - https://zip-engbg.com/sites/default/files/2017/01/21/%D0%9F%D1%80%D0%BE%D0%B5%D0%BA%D1%82%20% D1%81%D1%83%D1%88%D0%B8%D0%BB%D0%BD%D1%8F%20%D0%B7%D0%B0%20%D0%BA %D0%B2%D0%B0%D1%80%D1%86%D0%BE%D0%B2%20%D0%BF%D1%8F%D1%81%D1%8A%D0 %BA.pdf (Accessed: 15 August 2025).