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PRODID:-//Memento EPFL//
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SUMMARY:Development and Analysis of a Novel Finned Compressor for Isotherm
 al Compressed Air Energy Storage: From Modelling to Experimental Validatio
 n
DTSTART:20180308T133000
DTEND:20180308T143000
DTSTAMP:20260924T045309Z
UID:c08d8f053644442070097893070f913327e4b687b55ef6db80ba8b0b
CATEGORIES:Conferences - Seminars
DESCRIPTION:Considering the need for a reliable and environmentally friend
 ly energy storage solution for addressing renewable energy intermittency i
 ssue and following the developments on Isothermal Compressed Air Energy St
 orage (I-CAES) systems\, a new finned piston compressor which is character
 ized by increased heat transfer area and coefficient has been designed\, a
 nalyzed\, manufactured and experimentally tested. This compressor includes
  two sets of concentric annular fins with different diameters: the mobile 
 fins are pushed into the space between the stationary fins through a drive
 r shaft and compress the air trapped in the interconnecting annular chambe
 rs while keeping the air temperature close to ambient. Modeling of heat tr
 ansfer and fluid flow in such a complicated geometry with a transient\, no
 n-linear\, multi-layer\, multi-dimensional nature can be best done by equi
 valent electric analogies with variable resistances and capacitors and emp
 loying a lumped method. Using bond graph representation method and based o
 n a previously developed model for a classic reciprocating compressor\, en
 ergy conversion has been modeled using a conjugate heat transfer and fluid
  flow model. Results of the simulation are presented and have been validat
 ed using an experimental test bench and to provide contrast to current tec
 hnology\, compared to a classic reciprocating compressor. The heat transfe
 r along one cycle has increased in the finned compressor by 32 times compa
 red to a classic piston compressor. The results also reveal that however t
 he volumetric efficiency is decreased slightly in the finned compressor (8
 %)\, the exergetic efficiency has increased from 55.1% in a classic piston
  to 78.4% in the finned piston
LOCATION:I17 4 K2 https://plan.epfl.ch/?room==I17%204%20K2
STATUS:CONFIRMED
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