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Dimension and mechanical structure design of low-cost heliostats in concentrated solar power plants

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

This paper presents the dimension selection of the reflective mirror and the mechanical support structure design of heliostats in concentrated solar power (CSP) plants. To start with, a flowchart for designing a heliostat is presented, followed by a detailed wind load analysis to determine its mirror dimension and electric drive ratings. Specifically, the validity of the employed analytical equations developed by the Sandia National Lab are verified with a computational fluid dynamics simulation of wind pressure on the mirror surface. In addition, three mechanical support structures, with two selected from the recent literature and one proposed in this paper, are presented to assess their mechanical robustness and perform a cost comparison. The result demonstrates all of the mechanical designs are able to withstand the expected maximum wind load during solar tracking, and the rim drive is the most cost-effective structure of the three under the same comparison guidelines and principles.

Original languageEnglish
Title of host publication2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3441-3447
Number of pages7
ISBN (Electronic)9781728103952
DOIs
StatePublished - Sep 2019
Externally publishedYes
Event11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019 - Baltimore, United States
Duration: 29 Sep 20193 Oct 2019

Publication series

Name2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019

Conference

Conference11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Country/TerritoryUnited States
CityBaltimore
Period29/09/193/10/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Concentrated solar power (CSP)
  • Cost comparison
  • Heliostats
  • Mechanical structure
  • Wind load

ASJC Scopus subject areas

  • Mechanical Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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