eprintid: 8826
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/88/26
datestamp: 2023-11-09 16:20:45
lastmod: 2023-11-09 16:20:45
status_changed: 2023-11-09 16:13:38
type: article
metadata_visibility: show
creators_name: Kurnia, J.C.
creators_name: Sasmito, A.P.
creators_name: Xu, P.
creators_name: Mujumdar, A.S.
title: Performance and potential energy saving of thermal dryer with intermittent impinging jet
ispublished: pub
keywords: Air; Computational fluid dynamics; Dryers (equipment); Energy conservation; Energy efficiency; Fighter aircraft; Potential energy, Drying temperature; Energy efficient; Impinging jet; Inlet temperature; Numerical study; Performance evaluation; Temperature uniformity; Thermal drying, Drying
note: cited By 11
abstract: In designing an energy efficient impinging jet dryer, it is essential to match the energy demand for drying with the supply of heat by convection to avoid overheating and energy wastage. One way to achieve this is by intermittently supply heat to the drying chamber. By using computational fluid dynamics (CFD) approach, this study numerically investigates the possibility of energy saving by intermittency. First, inlet temperature intermittency is applied. This is conducted by alternately raise it to drying temperature and lowers it to the ambient temperature at certain period. Second, inlet velocity intermittency is applied which is conducted by alternately supplying the hot air to the several drying chamber. One, two, three and four chamber configurations are evaluated. In addition, the intermittency period of 10, 20 and 30 min were examined. The results reveal that the steady impinging jet offers faster drying rate as compared to intermittent impinging jet drying under the same inlet conditions. In addition it was found that drying rate goes down as the number of drying chamber increases. However, the intermittent impinging jet drying offers advantages in term of temperature uniformity and energy conservation. For the same energy usage, the production rate of single drying configuration is only one fourth of the four chamber configuration. This indicates the potential of multi chamber configuration in a real drying application. © 2016 Elsevier Ltd
date: 2017
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84994701918&doi=10.1016%2fj.applthermaleng.2016.11.036&partnerID=40&md5=6641b56cbab3c014cc565e1119c140b7
id_number: 10.1016/j.applthermaleng.2016.11.036
full_text_status: none
publication: Applied Thermal Engineering
volume: 113
pagerange: 246-258
refereed: TRUE
issn: 13594311
citation:   Kurnia, J.C. and Sasmito, A.P. and Xu, P. and Mujumdar, A.S.  (2017) Performance and potential energy saving of thermal dryer with intermittent impinging jet.  Applied Thermal Engineering, 113.  pp. 246-258.  ISSN 13594311