An Open Sorption Heat Storage Concept and Materials for Building Heat Supply

Bernhard Zettl, Gerald Englmair, Walter Somitsch

Publikation: Beitrag in FachzeitschriftKonferenzartikel

18 Zitate (Scopus)

Abstract

The potential of an open sorption storage process for space heating and hot water was evaluated using sorptive material namely zeolite 4A (low grade) and salt-based composite. Sorptive material beds of about 55 kg to 74 kg were able to generate an adsorption heat between 3 and 5 kWh and temperature shifts of the process air between 20 K and 25 K depending on the material type, the inlet air water content, and the state of dehydration of the storage materials. The evaluation of the composite material based on LiCl/MgSO4 and MgCl2/MgSO4 impregnated clinoptilolite (using max. desorption temperature of 110 °C) in a rotating heat drum showed that not agglomeration due to sticking of the grains happens, good controllability of the process was possible, and sufficient high temperature shifts for room heating applications were achieved.
OriginalspracheEnglisch
Seiten (von - bis)297-304
Seitenumfang8
FachzeitschriftEnergy Procedia
Jahrgang73
Ausgabenummer1
DOIs
PublikationsstatusVeröffentlicht - Juni 2015

Schlagwörter

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

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