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2 edition of Factors affecting accuracy of ichthyoplankton samples used in power plant entrainment studies found in the catalog.

Factors affecting accuracy of ichthyoplankton samples used in power plant entrainment studies

R. R. Bowles

Factors affecting accuracy of ichthyoplankton samples used in power plant entrainment studies

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Published by Dept. of the Interior, Fish and Wildlife Service, Office of Biological Services, Power Plant Project, National Power Plant Team, for sale by the Supt. of Docs. U.S. Govt. Print. Off. in Ann Arbor, Mich .
Written in English

    Subjects:
  • Power-plants -- Environmental aspects.,
  • Aquatic biology -- Research.

  • Edition Notes

    StatementR. R. Bowles, John V. Merriner and John Boreman.
    SeriesTopical briefs, fish and wildlife resources and electric power generation -- no. 7., FWS/OBS ; 76/20.7
    ContributionsMerriner, John V., Boreman, John., U.S. Fish and Wildlife Service. Office of Biological Services. National Power Plant Team.
    The Physical Object
    Pagination12 p. :
    Number of Pages12
    ID Numbers
    Open LibraryOL17537695M


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Factors affecting accuracy of ichthyoplankton samples used in power plant entrainment studies by R. R. Bowles Download PDF EPUB FB2

EXTRINSIC FACTORS AFFECTING RESEARCH Cage Design characteristics Recovery cages Mouse urologic syndrome Randomization of cage location EXTRINSIC FACTORS AFFECTING RESEARCH Cage Design –Rack placement Cage placement on the rack may be important. Rack vendors work hard to make all slots equal, but.

Commission passed upon the accuracy or adequacy of the design and analysis of entrainment studies. South Bay Power Plant entrainment station Figure 9.

Weekly mean larval concentration of kelp, gopher, and black-and- yellow (KGB) rockfish complex larvae at the Morro Bay Power Plant intake. Factors affecting accuracy of ichthyoplankton samples used in power plant entrainment studies / By R.

Bowles, John. Boreman, John V. Merriner, Biological Services Program (U.S.) and Power Plant Project (U.S.) Abstract. Includes bibliographical references (p.

).Mode of access: Internet. Get this from a library. Factors affecting accuracy of ichthyoplankton samples used in power plant entrainment studies. [R R Bowles; John V Merriner; John Boreman; Biological Services Program (U.S.); National Power Plant Team.].

Factors affecting accuracy of ichthyoplankton samples used in power plant entrainment studies FWS/OBS 76/ By: R.R. Bowles, John V. Merriner, and John Boreman. The Facility would consist of three Westinghouse G (or equivalent) advanced combustion turbine generators (CTG), three heat recovery steam generators (HRSG), three steam turbine generators (STG) with associated balance-of-plant systems and facilities.

The primary fuel would be natural gas. Low sulfur (%) fuel oil would be used for back-up. Thermal tolerance studies were conducted at the Facility during the s. The results of these studies generally demonstrate that the more important factors in determining entrainment mortality associated with thermal stress are the exposure.

Factors affecting accuracy of ichthyoplankton samples used in power plant entrainment studies / (Washington: Fish and Wildlife Service, U.S. Dept. of the Interior, ), by R. Bowles, John Boreman, John V. Merriner, Biological Services Program (U.S.), and Power Plant Project (U.S.) (page images at HathiTrust) Technology and use of lignite.

The numerical modeling protocol established in Edinger and Kolluru [14] to estimate the entrainment of ichthyoplankton due to power plant cooling water intakes along a body of water was used as.

Meteorological Parameters. The concentration of pollutants associated with moving vehicles is determined by several factors: the emission rate of pollutants from the vehicle, mixing induced by vehicle motion, wind speed and direction relative to the axis of the highway, intensity of ambient atmospheric turbulence, reactions to or from other chemical species, and rate of removal to the ground.

Hydraulic shock (colloquial: water hammer; fluid hammer) is a pressure surge or wave caused when a fluid, usually a liquid but sometimes also a gas, in motion is forced to stop or change direction suddenly; a momentum change.

This phenomenon commonly occurs when a valve closes suddenly at an end of a pipeline system, and a pressure wave propagates in the pipe. This process, called entrainment, may affect a wide variety of small plants (phytoplankton), invertebrates (zooplankton), fish eggs, and larvae (ichthyoplankton).

Entrainment mortality is variable. Conditions at some plants with once-through cooling may result in relatively low levels of mortality, although at such plants the volumes of water. Atmospheric dispersion modeling is the mathematical simulation of how air pollutants disperse in the ambient is performed with computer programs that include algorithms to solve the mathematical equations that govern the pollutant dispersion.

The dispersion models are used to estimate the downwind ambient concentration of air pollutants or toxins emitted from sources such as. These data are used to make decisions about visitor access, harvesting of resources, and development of the park resource. As another example, the program conducted by Occidental College for Southern California Edison was originally related to monitoring the effects of waste heat discharge from coastal power plants.

Associations in some studies are very strong and, in a number of studies, are based on a linkage system which minimizes potential self-report bias (at the risk of loss of statistical power). These studies confirm associations for a broad range of psychological strain outcomes: moderately severe forms of depression, exhaustion, drug consumption.

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. Changes in the power plant operation can affect desalination plant influent water temperature and concentrate blending ratios.

Depending on the amount of cooling water being passed through the power plant, desalination pro- duction may have to be adjusted to maintain NPDES permit compliance for concentrate dilution and discharge. Proper sample orientation and preparation are critical aspects of microstructural analysis.

The orientation of the sectioning is determined by the specific failure characteristics of the case. After careful selection, metal specimens are cut with a power hacksaw or an abrasive cut-off. An illustration of an open book. Books. An illustration of two cells of a film strip.

Video An illustration of an audio speaker. Full text of "Field distribution and entrainment of fish larvae and eggs at the Donald C. Cook Nuclear Power Plant.

Electric power plants use a variety of prime movers to generate electricity. The type of prime mover used at a given plant is determined based on the type of load the plant is designed to serve, the availability of fuels, and energy requirements.

Most prime movers use fossil fuels (coal, oil, and natural gas) as an energy source and. The current state of development in Europe will now be described. Factors Affecting Ultrasonic Precision. Conventional pulse-echo timing errors 4. Most non-destructive testing equipments contain circuitry for measuring the pulse-echo delay times, and equipment of similar kind was used for both the SNR and PFR tests.

Some relevant aspects of institutional policies affecting hood use and design are in Box The number and size of necessary hoods will vary considerably with the type of laboratory. For example, biochemistry laboratory experiments involve minute quantities of chemicals and are.

Since that time chlorination for biofouling control in power plants has enjoyed widespread use. The basic power plant consists of a boiler, turbine/generator and cool- ing system. A simplified diagram of this basic system is shown in Figure 2.

In summary, the location of a power plant, or other cooling water use, coupled with the associated Intake structure design, construction, and capacity results in a unique situation. While generalities may be useful, the optimal combination of measures effectively minimizing adverse Impact on the biota is site and plant.

@article{osti_, title = {The distribution of ichthyoplankton in thermal and non-thermal creeks and swamps on the Savannah River Plant, February-July }, author = {Paller, M H and Saul, B M and Hughes, D W}, abstractNote = {The report deals with the distribution of ichthyoplankton in the Savannah River tributary streams and associated swamps located on the SRP during the.

The paper discusses other factors affecting the accuracy of the calculations, in particular, the mesh density and underexpanded injection conditions.

Simulations are then used to determine the impact of chamber turbulence, injection duration, and wall contact on transient jet penetration. longer than 5 mm) taken from a coastal power plant intake was significantly higher in pump samples than in concurrent samples taken with m and m plankton nets.

Stauffer () tested three pump designs for collecting lake trout eggs and early life stages and reported adequate collections only with a system incorporating. Cylindrical wedgewire screens are a technology that has potential for effectively reducing the entrainment and impingement of ichthyoplankton at power plant cooling water intakes; however.

a power plant study in Connecticut (Gentile et al., ). These studies show that power plant effects are difficult to generalize and must be assessed on the basis of individual plant location and operational characteristics.

Factors commonly associated with coastal power plants, such as the proportionately small percentage of available water.

Actual discharge temperatures should be relatively steady unless the power plant has sev- eral different condenser designs in which case the discharge temperature will vary with the plant load. Use of the theory requires that a con- stant value of ATQ be specified, the choice being based on the likely steady value of the discharge temperature.

Samples collection and analyses. Surface water and zooplankton samples were collected from the three stations around thermal power plant monthly between January and December (Fig. 1).Zooplankton samples were collected at monthly intervals through horizontal surface tows (nearly 5–10 m depth) using a typical zooplankton net with m diameter and μm.

The result is the need to establish criteria for accurate, continuously regulated bypass flows, fish passage both upstream and downstream fish entrainment prevention, and other environmental mitigation.

These measures often reduce the head and flow available for power generation and can seriously affect the economic feasibility of a project. It is estimated that yellow perch larval losses attributable to the power plant in were betweenand 2, The percentage loss of recruitment of yellow perch into the young-of- year stage due to entrainment mortality at the Monroe plant is estimated to be percent for and percent inconsidering Michigan waters only.

EPA/ August PRODUCTION, MORTALITY, AND POWER PLANT ENTRAINMENT OF LARVAL YELLOW PERCH IN WESTERN LAKE ERIE by Richard L. Patterson Large Lakes Research Station Environmental Research Laboratory-Duluth Grosse lie, Michigan and School of Natural Resources University of Michigan Ann Arbor, Michigan.

Hydrodynamic models coupled with particle tracking models have been used to simulate egg and larval advection or entrainment through marine (White et al. ) and estuarine environments (North et al.

; Blumberg et al. ).While many studies have estimated rates of entrainment (Boreman et al. ) or explored behaviors that modulate entrainment (Culberson et al. ), further. The Electric Power Research Institute (EPRI) conducts research, development, and demonstration projects for the benefit of the public in the United States and internationally.

As an independent, nonprofit organization for public interest energy and environmental research, we focus on electricity generation, delivery, and use in collaboration with the electricity sector, its stakeholders and.

The U.S. Department of Energy's Office of Scientific and Technical Information. The results of the modeling are estimates of the ichthyoplankton abun- dance that would reach the juvenile stage with and without entrainment by the power plant.

Sensitivity analyses are used to estimate the responses of the model to uncertainties in the age of entrainment vulnerability, in active movement rates of larvae, in avoidance of the. With the exception of Brandon Shores, Vienna, and two of the four units at Chalk Point, all of Maryland’s steam-generating power plants identified in Fig.

1 use once-through cooling systems. Once-through systems require large volumes of water — a fossil fuel fired plant uses about million gallons of cooling water per day for each megawatt of electricity produced.

Amongst the above-mentioned studies, Valencia et al. () carried out monthly ichthyoplankton surveys, during andwith the objective of identifying the principal factors affecting egg and larval distribution; this took place at four sampling stations, along a transect in front of Pasaia, with increasing water depth (for details.

The impact of ichthyoplankton entrainment in lacusterine environments has been difficult to ascertain because the total number produced is usually unknown. Additionally, larvae in lakes are vulnerable to entrainment for varying periods of time, not just instantaneously as when transported past cooling water intakes located on rivers.This model was first developed for use with power plants entraining water from rivers, but MacCall et al.

() used the same general approach for entrainment assessments at power plants on the.A high volume pump ( m3/min capacity at 6 m head) and conventional plankton nets ( and m diam) were operated side by side in two tests to evaluate the efficiency of each gear for.