New electronic anti-fouling technology to control precipitation fouling

Conference · Tue Jul 01 04:00:00 EDT 1997

OSTI ID:20014394

Fan, C; Cho, Y I

An innovative technology to control fouling in heat exchangers was developed. The technology was based on solenoid-induced molecular agitation and will be referred to in the present study as an electronic anti-fouling (EAF) technology. To validate the EAF technology, a recirculating flow loop was built where a main test tube was heated electrically. A series of accelerated fouling tests were conducted, measuring pressure drop across the heating tube and convective heat transfer coefficient as a function of time. For the accelerated fouling test, artificial hard water of 1,000 ppm as CaCO{sub 3} was used throughout the tests. The pressure drop obtained with the EAF treatment was approximately 51% less than that without the EAF treatment. Furthermore, the asymptotic heat transfer coefficient when the test fluid was treated by EAF unit was approximately 12% larger than that without the EAF treatment.

• Research Organization: Drexel Univ., Philadelphia, PA (US)
• OSTI ID: 20014394
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CALCIUM CARBONATES
ELECTRIC FIELDS
FOULING
HEAT EXCHANGERS
PERFORMANCE TESTING
SCALE CONTROL
SOLENOIDS