 Energy-efficient gas-fired tumble dryer with adsorption thermal storageBachir El Fil and Srinivas Garimella Energy, 2022, vol. 239, issue PA Abstract: Improvements to the energy efficiency of open-cycle tumble dryers have the potential to substantially reduce CO2 emissions. A novel adsorption-based thermal energy storage system is integrated into a gas-fired dryer here. An adsorbent bed is used to capture waste heat from the exhaust stream, store, and reuse it in the current and subsequent drying cycles. A heat and mass transfer model is developed to capture the dynamics of the thermal storage system, and validated experimentally on a 11.33-kg capacity gas-fired tumble dryer. The model predicts the inlet and exit temperatures of the drum with average absolute deviations of 7.1% and 8.4%, respectively. The analysis indicates that an 8.5-kg silica gel adsorption bed can yield a specific moisture extraction ratio of 1.166 kWhkgw−1, a 22% reduction over the energy consumption of the conventional gas-fired tumble dryer. In addition, drying time is reduced by 19%. This technology can be implemented in a variety of dryers to take advantage of the waste heat in the exhaust stream. Keywords: Adsorption; Gas-fired dryer; Textile drying; Heat and mass transfer; Thermal energy storage (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:239:y:2022:i:pa:s0360544221019563 DOI: 10.1016/j.energy.2021.121708 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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