Marine microfouling on aluminum and titanium heat exchanger surfaces at the CEER OTEC Puerto Rico facility

Conference · Mon Dec 01 04:00:00 EST 1980 · Alternative Energy Sources; (United States)

OSTI ID:6817776

Tosteson, T R; Axtmayer, R W; Ballantine, D L; Imam, S; Morgon, T; Revuelta, R; Sasscer, D S; Zaidi, B R

Since 30 January, 1980, an OTEC biofouling experiment has been in progress off the southeast coast of Puerto Rico. The initiation and accumulation of microfouling on aluminum and titanium surfaces has been analyzed over a period of 143 days. Microfouling was assessed by determining the surface residue weight, organic carbon and nitrogen contents of this residue, the wet film thickness and the ATP content of this film. The development of biofouling on the aluminum and titanium surfaces appears to be different with respect to the relationship seen between biomass cycle and the bulk growth of the wet film on the respective surfaces. The increase in thermal resistance (R /SUB f/ ) of the aluminum and titanium heat exchanger tubes during the period of this experiment is correlated with the increase in the wet film volume associated with these test surfaces.

• Research Organization: Department of Marine Sciences University of Puerto Rico Mayaguez
• OSTI ID: 6817776
• Report Number(s): CONF-801210-
• Conference Information: Journal Name: Alternative Energy Sources; (United States) Journal Volume: 4
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140800* -- Solar Energy-- Ocean Energy Systems
ALUMINIUM
BIOLOGICAL FOULING
CORROSIVE EFFECTS
ELEMENTS
FEDERAL REGION II
FOULING
GREATER ANTILLES
HEAT EXCHANGERS
ISLANDS
METALS
MICROORGANISMS
NORTH AMERICA
OCEAN THERMAL POWER PLANTS
PHYSICAL PROPERTIES
POWER PLANTS
PUERTO RICO
SOLAR POWER PLANTS
SURFACES
THERMAL CONDUCTIVITY
THERMAL POWER PLANTS
THERMODYNAMIC PROPERTIES
TITANIUM
TRANSITION ELEMENTS
TUBES
USA
WEST INDIES