Feasibility of ultrasonic and other methods for direct measurement of condenser biofouling

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  • English
U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory , Research Triangle Park, NC
Electric utilities -- Environmental aspects -- United S
StatementC. Richard Reeves, Wayne S. Seames, and Steve L. Winton
ContributionsSeames, Wayne S, Winton, Steve L, Industrial Environmental Research Laboratory (Research Triangle Park, N.C.)
The Physical Object
Pagination6 p. :
ID Numbers
Open LibraryOL14892137M

Get this from a library. Feasibility of ultrasonic and other methods for direct measurement of condenser biofouling. [C Richard Reeves; Wayne S Seames; Steve L Winton; Industrial Environmental Research Laboratory (Research Triangle Park, N.C.)].

@article{osti_, title = {Feasibility of ultrasonic and other methods for direct measurement of condenser biofouling. Final report August October }, author = {Reeves, C.R. and Seames, W.S. and Winton, S.L.}, abstractNote = {The report gives results of a literature review and laboratory studies of the potential of ultrasonic and other methods for in-situ measurement.

@article{osti_, title = {Biofouling detection monitoring devices: status assessment. Final report}, author = {Hillman, R.E. and Anson, D. and Corliss, J.M. and Vigon, B.W. and Gray, R.H. and Bomelburg, H.J.}, abstractNote = {An inventory of devices to detect and monitor biofouling in power plant condenser systems was prepared.

The inventory was developed through a review. physical and biochemical developments in the field of marine biofouling, which involves biofilm formation and macro-organism settlement, are discussed. The major antifouling technologies based on traditional chemical methods, biological methods, and physical methods are by: Biofouling Methods provides a “cook book” for both established workers and those new to the field.

The methods included in this important new book range from tried and tested techniques to those at the cutting edge, encompassing the full diversity of this multidisciplinary : Hardcover. Feasibility of ultrasonic and other methods for direct measurement of condenser biofouling.

Research Triangle Park, NC: U.S. Environmental Protection Agency. A feasibility study on the application of microwaves for online biofilm monitoring in the pipelines. C.R. Reeves, W.S. Seames, S.L. WintonFeasibility of ultrasonic and other methods for direct measurement of condenser by: 9.

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Measurement of biofouling in seawater: some practical tests Presented at the conference on Desalination and the Environment. Sponsored by the European Desalination Society and Center for Research and Technology Hellas (CERTH), Sani Resort, Halkidiki, Greece, April 22–25, Cited by: A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.

Biofouling will substantially increase fuel costs. Slime/Algae is bacteria that adheres to the condenser tube surface. This biofouling will reduce the usable tube surface area, will have a negative effect on heat transfer, will constrict cooling water flow and will significantly decrease plant performance.

Consequently, the economic costs associated with biofouling control are substantial. Conservative estimates are consistently between 5–10% of production costs (equivalent to US$ to 3 billion yr −1), illustrating the need for effective mitigation methods and technologies.

The control of biofouling in aquaculture is achieved through the Cited by: Biofouling in fresh water systems is less pronounced as compared to seawater, which has high salt content and forms a complicated solution, containing majority of the known elements.

The process of biofouling generally begins with the formation of a biochemical conditioning film onto which bacteria and other organisms colonize.

Ultrasonic Pulse Velocity (UPV) is a non destructive technique involve measuring the speed of sound through materials in order to predict material strength, calculate low-strain elastic modulus and/or to detect the presence of internal flaws such as cracking, voids, honeycomb, decay and other technique is applicable where intrusive.

Biofilm culture. Sample coupons were exposed to a liquid culture of Pseudomonas putida (ATCC ) bacteria, then stained, photographed, and analyzed using an image analysis algorithm program written for the purpose.

In parallel, identical coupons were analyzed by a standard method: cell density of the biofilm was measured after removing the cells by Cited by: 6. an average thickness measurement across the sample. Various methods have been utilised in the studying of biofouling, with some notably, Fowler and McKay () developed the radial flow cell (RFC) to study the impact of shear forces on the growth and development of biofilms, and this has recently been used.

Measurement of ATP as an indicator of biomass contents in seawater systems is a quick and simple method. Heterotrophic counts and ATP values can be correlated in water with low organic loads, whereas high organic loads — many types of microorganisms — correlation is.

It is well known from ultrasonic testing in other fields, that space averaging techniques suppress the coherent back-scattering noise effectively. For applying such methods, signals from a large number of measurement points are necessary. They can be obtained in a convenient way by using laser interferometric detection.

Ultrasonic Nondestructive Evaluation Systems: Models and Measurements provides the latest information and techniques available for ultrasonic nondestructive evaluation (NDE) inspections. Using a systems level approach, this book employs aspects of Fourier analysis, linear system theory, and wave propagation and scattering theory to develop a comprehensive model of an.

Description Feasibility of ultrasonic and other methods for direct measurement of condenser biofouling PDF

No one book has integrated these aspects into a treatment that is both self-contained and up-to-date. Ultrasonic Nondestructive Evaluation: Engineering and Biological Material Characterization brings together the principles, equations, and applications of ultrasonic NDE, both traditional and state-of-the-art, in a single, authoritative : Tribikram Kundu.

Acoustic methods for biofouling control: A review Biological fouling is a significant problem to the shipping industry causing significant increases in fuel, maintenance, and downtime costs.

Environmental concerns associated with toxic antifouling coatings have led to studies on alternative methods of biofouling control.

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit to get more information about this book, to buy it in print, or to download it as a free PDF. Field Demonstration of a Novel Biofouling Control Technology for Micro-Channel Flow Cells Carlton D HuntCarlton D.

Hunt1, Derek MichelinDerek Michelin1,Henry PateHenry Pate3, Brian Sikorski2,Michael Neal2, Caleb Chitwood2, Harry Nelson4 – 1Battelle. Feasibility Evaluation of a Novel Ultrasonic Method for Prosthetic Control ECE/3 Senior Design Project Fall Electrical and Computer Engineering Department Volgenau School of Engineering George Mason University Fairfax, VA Team members: Abdullah Al-Imran, Ira Augustus Hunt IV, and Andrew J.

Nelson. Biofouling in recirculating water systems may be controlled by admixing or otherwise providing 1-bromochloro-5, 5-dimethylhydantoin ("BCDMH") to the water at a level effective to control biological film-forming organisms and thereafter maintaining the BCDMH concentration at a level sufficient substantially to inhibit regrowth of such by: each other, the under-/over-estimation of wall thickness could still be as great as ±14 mils for UT image averages.

Such temperature variation is, therefore, indicated to be a considerably larger contributor to UT measurement variability and/or bias than the measurement factors in. advances of ultrasonic methods applied to materials and structures (including biological ones), exploring the broad applications of these emerging inspection technologies to civil engineering and medicine.

In confirmation of this trend, some results of an experimental research carried out involving both destructive and non-destructiveFile Size: KB. Mechanism of Concrete Corrosion S= Step 1 – Aerobic bacteria deplete available oxygen O 2 SO 4 = Step 2 – Anaerobic bacteria convert sulfate to sulfide Step 3 – Sulfide combines with wastewater acidity to form hydrogen sulfide H 2 S H+ Step 4 – Insoluble hydrogen sulfide escapes to headspace Step 5 – Hydrogen sulfide is biologically oxidized to sulfuric acid.

Nondestructive Evaluation Sciences Branch Composite Characterization using Ultrasonic Wavefield Techniques Dr. Cara A.C. Leckey 1, Peter D. Juarez, Jeffrey P. Seebo2 1Nondestructive Evaluation Sciences Branch, NASA Langley Research Center 2Analytical Mechanics Associates, NASA LaRC Aircraft, Airworthiness, & Sustainment ConferenceFile Size: 2MB.

s on DC 6' August Chlorine Minimization/ JA/ 0 Optimization for Condenser Biofouling Control: Final Report by "5»- *> R.D. Moss, H.B: Flora, II, § R.A.

Hiltunen, and C.V. Seaman O— •3- CS TVA, Energy Demonstrations and Technology ^ 1 Chestnut Street,Tower II ^ Chattanooga, Tennessee Interagency Agreement No. EPA-IAG-D5-E Program. TVA EPA Tennessee Valley Authority Energy Demonstrations and Technology Chattanooga TN U.S.

Environmental Protection Agency Industrial Environmental Research EPA/ Office of Research and Development Laboratory August Research Triangle Park NC Chlorine Minimization/ Optimization for Condenser Biofouling Control (Phases I and II).

Details Feasibility of ultrasonic and other methods for direct measurement of condenser biofouling FB2

Several methods and strategies for membrane biofouling control have been developed over the last two decades. This paper provides a review of the role of extracellular polymeric substances (EPS) in membrane biofouling and recent advancements in the development of methods for monitoring and controlling Size: KB.Advanced ultrasonic measurement methodology for non-invasive interrogation and identification of fluids in sealed containers Brian J.

Tucker* 1, Aaron A. Diaz 1, and Brian A. Eckenrode 2 1Pacific Northwest National Laboratory, P.O. BoxMS K, Richland, WA 2FBI Academy, Quantico, VA ABSTRACT.Materials and methods Study site and community The study was conducted from April through September and in Elkhorn Slough, Monterey Bay, in central California, USA.

The maximum tidal height is 2m and the minimum height is m. The light and temperature manipulation experiments were con-ducted, in both years, in an intertidal mudflat.