Open AccessAsymmetrical compound parabolic concentrator with single flow system: field-test scale, thermal performance parameters, and E. coli inactivation
Author(s) -
Wreerat Laithong,
Phattarathicha Tepsri,
Sirichai Thepa,
Roongrojana Songprakorp,
Sorachon Yoriya
Publication year - 2019
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ab34d7
Subject(s) - volumetric flow rate , flow (mathematics) , thermal , work (physics) , chemistry , water flow , materials science , mechanics , inlet , thermodynamics , analytical chemistry (journal) , environmental science , environmental engineering , chromatography , physics , engineering , mechanical engineering
This work presents a developed field-test scaled asymmetrical compound parabolic concentrator (ACPC) and an investigation of its performance with a single flow system of water on Escherichia coli inactivation. As a function of water flow rate, ability to produce hot water of the ACPC and hence inhibit the growth of bacterial in water is focused to study; the flow rates varied are 0.2, 0.4, and 0.6 l min −1 . With a design and choice of material, the constructed ACPC unit with 0.2 l min −1 could produce hot water with maximum temperature of 76.4 °C, with lower flow rates resulting in the lower outlet water temperature and consequently the reduced kinetics of bacteria inactivation. Thermal performance parameters have been described in a correlative view with the particular operation condition and flow rate variables through mathematic calculation. The effect of inlet driving temperature, believed to play a significant role controlling the outlet temperature, on E. coli inactivation has been investigated.