skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A method to assess flux hazards at CSP plants to reduce avian mortality (paper).

Abstract

Abstract not provided.

Authors:
;  [1]; ;
  1. (NREL)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1404785
Report Number(s):
SAND2016-10119C
648148
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the SolarPACES 2016 held October 11-14, 2016 in Abu Dhabi, United Arab Emirates.
Country of Publication:
United States
Language:
English

Citation Formats

Ho, Clifford K., Wendelin, Tim, Yellowhair, Julius, and Horstman, Luke. A method to assess flux hazards at CSP plants to reduce avian mortality (paper).. United States: N. p., 2016. Web.
Ho, Clifford K., Wendelin, Tim, Yellowhair, Julius, & Horstman, Luke. A method to assess flux hazards at CSP plants to reduce avian mortality (paper).. United States.
Ho, Clifford K., Wendelin, Tim, Yellowhair, Julius, and Horstman, Luke. 2016. "A method to assess flux hazards at CSP plants to reduce avian mortality (paper).". United States. doi:. https://www.osti.gov/servlets/purl/1404785.
@article{osti_1404785,
title = {A method to assess flux hazards at CSP plants to reduce avian mortality (paper).},
author = {Ho, Clifford K. and Wendelin, Tim and Yellowhair, Julius and Horstman, Luke},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month =
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Abstract not provided.
  • A method to evaluate avian flux hazards at concentrating solar power plants (CSP) has been developed. A heat-transfer model has been coupled to simulations of the irradiance in the airspace above a CSP plant to determine the feather temperature along prescribed bird flight paths. Probabilistic modeling results show that the irradiance and assumed feather properties (thickness, absorptance, heat capacity) have the most significant impact on the simulated feather temperature, which can increase rapidly (hundreds of degrees Celsius in seconds) depending on the parameter values. The avian flux hazard model is being combined with a plant performance model to identify alternativemore » heliostat standby aiming strategies that minimize both avian flux hazards and negative impacts on plant performance.« less
  • This paper presents a study of alternative heliostat standby aiming strategies and their impact on avian flux hazards and operational performance of a concentrating solar power plant. A mathematical model was developed that predicts the bird-feather temperature as a function of solar irradiance, thermal emittance, convection, and thermal properties of the feather. The irradiance distribution in the airspace above the Ivanpah Unit 2 heliostat field was simulated using a ray-trace model for two different times of the day, four days of the year, and nine different standby aiming strategies. The impact of the alternative aiming strategies on operational performance wasmore » assessed by comparing the heliostat slew times from standby position to the receiver for the different aiming strategies. Increased slew times increased a proxy start-up time that reduced the simulated annual energy production. Results showed that spreading the radial aim points around the receiver to a distance of ~150 m or greater reduced the hazardous exposure times that the feather temperature exceeded the hazard metric of 160 degrees C. The hazardous exposure times were reduced by ~23% and 90% at a radial spread of aim points extending to 150 m and 250 m, respectively, but the simulated annual energy production decreased as a result of increased slew times. Single point-focus aiming strategies were also evaluated, but these strategies increased the exposure hazard relative to other aiming strategies.« less