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Thursday, May 14, 2020 | History

2 edition of Abatement of biofouling and corrosion in OTEC heat exchangers using low energy surfaces ... found in the catalog.

Abatement of biofouling and corrosion in OTEC heat exchangers using low energy surfaces ...

United States. Dept. of Energy. Division of Geothermal Energy.

Abatement of biofouling and corrosion in OTEC heat exchangers using low energy surfaces ...

by United States. Dept. of Energy. Division of Geothermal Energy.

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  • 24 Currently reading

Published by Energy Research and Development Administration, Technical Information Center, for sale by the National Technical Information Service in Oak Ridge, Tenn, Springfield, Va .
Written in English

    Subjects:
  • Heat exchangers.

  • Edition Notes

    ContributionsOstrozynski, Robert L., Jones, Philip E.
    The Physical Object
    Paginationiv, 330 p. :
    Number of Pages330
    ID Numbers
    Open LibraryOL15220079M

    Biofouling of surfaces involves living matter--either mi- cro- or macroorganisms. The former are small, often single cell entities (e.g., bacteria, fungi, or algae), and the latter are larger creatures (such as mussels and barnacles). In heat exchangers, the problem of biofouling especially. EFFECTS OF OPERATING AND GEOMETRIC PARAMETERS ON CASO 4 CRYSTALLIZATION FOULING IN PLATE HEAT EXCHANGERS K.S. SONG1, S.W. KIM1, H. KANG2, C.H. BAEK2 and Y. KIM2* 1Graduate School of Mechanical Engineering, Korea University, Seoul , Korea.

    Environmental Impact of Fouling in Heat Exchangers The environmental impact of Heat Exchanger fouling is equally as important as the economic impact. Worldwide treaties on the reduction of environmental pollution have resulted in a dramatic increase of our collective consciousness on this issue over recent years. Deposition of corrosion products on primary and secondary side heat transfer surfaces (e.g., fouling of steam generator (SG) tubes, fuel rods, heat exchanger surfaces) decreases heat-transfer efficiency and increases the susceptibility to (and likelihood of) corrosion degradation. Field activities to.

    REVIEW ARTICLE Fouling corrosion in aluminum heat exchangers Su Jingxin a,*, Ma Minyu a, Wang Tianjing b, Guo Xiaomei b, Hou Liguo b, Wang Zhiping a a Tianjin Key Laboratory for Civil Aircraft Airworthiness and Maintenance, Civil Aviation University of China, Tianjin , China b Aircraft Maintenance and Engineering Corporation, Beijing Capital International Airport, Beijing , China. Fouling of heat exchangers in dairy industries is still quite a severe problem both technically and economically. Altering the surface properties of the heating surfaces would be a way of solving this issue. Modified steel surfaces were tested in an Alfa Laval V2 plate .


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Abatement of biofouling and corrosion in OTEC heat exchangers using low energy surfaces .. by United States. Dept. of Energy. Division of Geothermal Energy. Download PDF EPUB FB2

Get this from a library. Abatement of biofouling and corrosion in OTEC heat exchangers using low energy surfaces. [Robert L Ostrozynski; Philip E Jones; United States.

Department of Energy. Division of Geothermal Energy.]. Efficiency assessment of heat exchangers ensures appropriate use of the available energy. This article presents the concept of a heat exchanger on-line expert system based on qualitative reasoning.

Abatement of biofouling and corrosion in OTEC heat exchangers using low energy surfaces. Final technical report, May 1, Febru Technical Report Ostrozynski, R.L. ; Jones, P.E. Ji-Dong Gu, in Handbook of Environmental Degradation of Materials (Second Edition), Summary.

Biofouling is a natural phenomenon affecting a wide range of industries of our society. Conventional preventive strategies are chemical-based, but recent new understanding of biofouling mechanisms has shown that biotechnological approaches involving the utilization of microorganisms.

In book: Biofouling: Types, Impact and Anti-Fouling the reduction or removing of fouling located on the heat transfer surfaces or at least to. • corrosion products of heat exchangers. BIOFOULING CONTROL IN HEAT EXCHANGERS USING HIGH VOLTAGE CAPACITANCE BASED TECHNOLOGY.

Romo1, M. M Pitts 1 and N. Handagama2 1 Zeta Corporation, N. Forbes Blvd., SuiteTucson, AZ USA [email protected]; [email protected] 2Tennessee Valley Authority, W. Summit Hill Dr., WT 9C/10C, Knoxville, TN USA. Electrochemical measurements of corrosion and biofouling films have been performed using a recently developed technique called Electrode Impedance Spectroscopy (EIS).

EIS is based on the hypothesis that corrosion and biofouling films can be characterized by observing the steady-state response to a small amplitude sinusoidal perturbing potential Cited by: 2. Full text of "Corrosion and biofouling on the non-heat-exchanger surfaces of an ocean thermal energy conversion power plant: a survey" See other formats.

The term biofouling encompasses a strictly biological aspect, furthermore from the other point of view of industrial activity has a large economical incidence, which is, the fouling of the equipment of the heat exchanger and condensers or surfaces in contact with seawater.

In heat exchangers-condensers, the development of the fouling film, in. biofouling. The corrosion and weathering caused by this biofilm can lead to considerable damage, ranging from contamination of pharmaceutical or microelectronic products, to reduced efficacy of heat exchangers, unexpected corrosion of stainless steel, and premature destruction of mineral materials.

Fouling in general and biofouling in specific is a problem concerning many industries. Biofouling occur in environments favorable for biological growth. As an example, i ndustries using cooling water have problems with biofouling. The problem is apparent on heat exchangers as biofilm reduces the heat transfer and thus the performance.

This study, conducted with the dynamic simulation equipment under constant conditions of water temperature 30°C and flow rate m.s-1, is intended to simulate dynamically the fouling process on stainless steel tube heat exchanger of three types of fouling microorganisms, iron bacteria (IB), sulfate-reducing bacteria (SRB) and slime forming bacteria (HB), which are isolated from the slime in Cited by: 3.

Citation: Cao S, Wang J D, Chen H S, et al. Progress of marine biofouling and antifouling technologies. Chinese Sci Bull,–, doi: /s In the marine industry, the accumulation of living organ-isms on artificial surfaces by adhesion, growth and repro-duction is known as biofouling.

Biofouling is a particularCited by: On-line cleaning technique for mitigation of biofouling in heat exchangers: A case study of a hydroelectric power plant in Brazil Fouling is a resistance to energy transfer between fluids in process equipment.

It reduces the heat recovery and restricts the fluid flow in a heat exchanger by narrowing the flow area.

The cause of biofilm Cited by: Ocean Thermal Energy Conversion (OTEC) power plant plate heat exchanger system (Sriyutha Murthy ). The chlorine gas and sodium hypochlorite for antifouling treatments has been banned in the Venice lagoon and the industries were instructed to identify novel methods to control the biofouling without using dangerous.

Biofouling or biological fouling is the undesirable accumulation of micro-organisms, algae and diatoms, plants, and animals on surfaces, for example ships' hulls, or piping and reservoirs with untreated can be accompanied by microbiologically influenced corrosion (MIC).

Bacteria can form biofilms or slimes. Thus the organisms can aggregate on surfaces using colloidal hydrogels of. Thermodynamics, heat transfer and fluid flow-- tubular heat exchangers-- plate heat exchangers-- elements of thermal design-- elements of mechanical design-- high-and-low-temperature systems-- degradation of performance-- buying a heat exchanger-- codes and standards-- computer analysis of heat exchangers.

(source: Nielsen Book Data). Keywords: on-line cleaning technique, assessment of antifouling technique, biofouling, mitigation, plate heat exchangers.

Introduction Fouling is a resistance to energy transfer between fluids in process equipment [1]. It reduces the heat recovery and restricts fluid flow in.

1 Preventing corrosion of seawater heat exchangers made with Copper alloys 16th Dec, Mechanical Availability R&D Group, Fuels Research Laboratory Takanori KawanishiFile Size: 1MB.

The production of thin films (nanocoatings) is a technological field with many applications to elaborate materials with new properties to be used as corrosion protection of traditional metals. Hydrophobicity is an example of such properties. In this chapter, an example of two hydrophobic corrosion coatings for possible use over aluminum heat exchanger geothermal power plants is : Alba Covelo, Carmina Menchaca, Miriam Flores, Pilar Rodríguez‐Rojas, Miguel Hernandez‐Gallegos, Este.

Marine Renewable Energy (MRE) infrastructure offers unique challenges in terms of biofouling management. The harsh operational conditions and high fouling pressure can result in rapid failure and loss of efficiency, whilst maintenance in these scenarios is difficult and expensive.On-line cleaning technique for mitigation of biofouling in heat exchangers: A case study of a hydroelectric power plant in Brazil M.N.

Frotaa,⇑, E.M. Ticonaa, A.V. Nevesa, R.P. Marquesc, S.L. Bragaa,b, G. Valented a Postgraduate Metrology Programme, Catholic University of Rio de Janeiro, Brazil bDepartment of Mechanical Engineering, Catholic University of Rio de Janeiro, Rua Marquês de São.P.I.: Assoc.

Prof. Guangyi Wang, Department of Oceanography Objectives: Explore Biocorrosion and Biofouling of Aluminum Alloys using molecular methods to identify the composition of fouling communities. Presently: Marine installations are vulnerable to biocorrosion which is a serious problem for power generation facilities and the offshore oil and gas industry.