Design of a Pulsed Electric Field Treatment Chamber for a Liquid Foods Pasteurization Process

Main Article Content

Pimporn Sen-in
Praewpan Pinchai
Oraphan Chaekoe
Artit Yawootti
Panich Intra

บทคัดย่อ

In this paper, a coaxial treatment chamber for a liquid foods pasteurization process usingpulsed electric field was designed and numerical studied. A computational model of the treatment chamberwas developed to investigate the behavior of flow and electric field distributions in this study. The incompressibleNavier-Stokes equation and the Laplace’s equation are numerically calculated with a commercialcomputational fluid dynamic software package, CFDRCTM for the flow and electric fields, respectively.The software was based on finite volume method. It was found from the calculations that the maximum ofelectric field strength inside the chamber was about 1.845 × 106, 3.689 × 106 and 5.534 × 106 V/m for theinner electrode voltage of 10, 20 and 30 kV, respectively. For the maximum of flow velocity, it was about1.451, 4.214 and 6.975 m/s for the food flow rate of 1, 3 and 5 L/min, respectively. Prediction of flow andelectric field profiles was particularly useful in the design and modify of a coaxial treatment chamber fora liquid foods pasteurization process using pulsed electric field.

Keywords : Liquid Foods / Pasteurization / Pulsed Electric Field / Numerical Simulation / HighVoltage

Article Details

บท
Original Articles
Author Biographies

Pimporn Sen-in, Rajamangala University of Technology Lanna, Papong, Doi Saket, Chiang Mai 50220

Undergraduate Student, College of Integrated Science and Technology.

Praewpan Pinchai, Rajamangala University of Technology Lanna, Papong, Doi Saket, Chiang Mai 50220

Undergraduate Student, College of Integrated Science and Technology.

Oraphan Chaekoe, Rajamangala University of Technology Lanna, Papong, Doi Saket, Chiang Mai 50220

Undergraduate Student, College of Integrated Science and Technology.

Artit Yawootti, Rajamangala University of Technology Lanna, Papong, Doi Saket, Chiang Mai 50220

Assistant Professor, College of Integrated Science and Technology.

Panich Intra, Rajamangala University of Technology Lanna, Papong, Doi Saket, Chiang Mai 50220

Assistant Professor, College of Integrated Science and Technology.