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Coen Akkerman - Articles and news items

Energy reduction by high dry matter concentration and drying

Issue 2 2010  •  12 May 2010  •  Martijn Fox, Coen Akkerman, Han Straatsma and Peter de Jong, NIZO food research

Most of the powder products available on the market are produced using a spray drying process. Drying processes are known to be the most energy consuming processes used in the food industry. For example, the Dutch dairy industry required 1.4 PJ for drying its whey and milk powder in 2007. Therefore, a reduction of the energy consumption in drying processes will result in large cost savings, a better carbon footprint and a more sustainable production chain.

Optimal drying is no easy task

Issue 3 2008, Past issues  •  18 August 2008  •  Maarten Schutyser, Maykel Verschueren, Han Straatsma, Hadiyanto, Coen Akkerman, Peter de Jong, NIZO food research

Drying processes in the food industry often operate at a suboptimal level. The most important reason for this is that to obtain optimal drying, a complex balance must be found among variables such as energy costs, product quality, dryer design and safety. Therefore, there is a need for a systematic approach and concrete solutions. NIZO food research has developed a step-by-step optimisation approach that not only makes use of process and product scans, but simulation techniques such as CFD (Computational Fluid Dynamics).


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