Development of a revolving drum reactor for open-sorption heat storage processes

Bernhard Zettl, Gerald Englmair, Gerald Steinmaurer

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

To evaluate the potential of an open sorption storage process using molecular sieves to provide thermal energy for space heating and hot water, an experimental study of adsorption heat generation in a rotating reactor is presented. Dehydrated zeolite of the type 4A and MSX were used in form of spherical grains and humidified room air was blown through the rotating bed. Zeolite batches of about 50 kg were able to generate an adsorption heat up to 12 kWh and temperature shifts of the process air up to 36 K depending on the inlet air water content and the state of dehydration of the storage materials. A detailed study of the heat transfer effects, the generated adsorption heat, and the evolving temperatures show the applicability of the reactor and storage concept. (C) 2014 Elsevier Ltd. All rights reserved.
Original languageEnglish
JournalApplied Thermal Engineering
Volume70
Issue number1
Pages (from-to)42-49
Number of pages8
ISSN1359-4311
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Adsorption heat
  • Open-sorption process
  • Zeolite
  • Rotating drum reactor
  • Renewable heat
  • Seasonal storage

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