Distributed mathematical model supporting design and construction of solar collectors for drying

E.A.Y. Amankwah, K.A. Dzisi, G. van Straten, L.G. van Willigenburg, A.J.B. van Boxtel*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Coupled partial differential equations were developed to investigate which collector lengths are appropriate for drying and adsorbent regeneration under prevailing Ghanaian weather. Unlike approaches based on empirical data, the numerical model is more flexible. Effects of operational and design variables on outlet temperature and performance were systematically studied. Collector length and air speed affect performance indicators. Operational overall heat loss coefficient, an important characteristic of the collector, is not constant but varies during the day. With plausible physical parameters, the model describes the experimental data well. Collector lengths of 1.5 and 4.5 m suited drying and regeneration, respectively.

Original languageEnglish
Pages (from-to)1675-1687
JournalDrying Technology
Volume35
Issue number14
Early online date6 Feb 2017
DOIs
Publication statusPublished - Nov 2017

Keywords

  • Low temperature drying
  • SADS
  • solar collector
  • yam

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