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CRUST PREVENTION ON HEAT TRANSFER SURFACES USING COMBINED MAGNETIC AND ULTRASONIC METHODS

Petre Pena
RUPS - Brazi, Romania

Ovidiu Georgescu
RUPS - Brazi, Romania

Stefan Ivascan
"Gh. Asachi" Technical University B-dul Mangeron No.59, Iasi, Romania

Viorel Iacob
SNP PETROM,INCERP-Cercetare Subsidiary, B-dul Republicii No.291A, Ploiesti-Romania

Abstract

It is widely recognized that the heat transfer is decreasing at the air compression plants due to deposits yielded by the cooling water.
Besides the chemical and mechanical conventional methods, the literature quotes trials of preventing these phenomena using magnetic and/or ultrasonic methods.
The paper presents a case study using a water-air heat exchanging system in an air compression plant to which a magnetic field and ultrasounds were applied. The heat transfer indexes are computing starting from the equipment's geometry and working conditions. Correspondingly, deposit microstructures in various working regimes and conditions and the treatment method efficiencies are shown as well.

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