Improving dryer controllability & energy efficiency
bookPart
This work shows from energy balances and process resiliency analysis, the relationship between dryer controllability and energy performance. It is shown that using the process gain matrix, the dryer temperature drop and hence, energy efficiency can be reliably calculated. Conditions necessary for simultaneous energy efficiency and controllability improvement are established. By pre-conditioning the drying air using a desiccant adsorption system, such conditions are shown to be achievable for the same input choice as a conventional dryer. Also, extra degrees of freedom introduced by the desiccant system promote controllability with the advantage best exploited using full multivariable control. Energy efficiency disturbance resilience is also improved. © 2012 Elsevier B.V.
TNO Identifier
461822
ISSN
15707946
Source title
Computer Aided Chemical Engineering
Pages
847-851
Files
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