Frequency response analysis of fluid control systems for parabolic trough solar collectors

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Previous studies of solar collector fluid control systems have utilized computer simulations of collector and piping dynamics to evaluate stability and response characteristics. To obtain reasonable simulation accuracy requires substantial computer memory and time, and is well beyond the capability of small desk-top computers. Here a linearized steady state frequency response is derived for parabolic trough collectors and for connecting piping, which can be used in standard gain-phase analyses to evaluate system stability and closed loop frequency response. The frequency response characteristics of a typical collector string and piping are used in a gain-phase analysis to get some insight into ... continued below

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Pages: 27

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Schindwolf, R. January 1, 1980.

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Description

Previous studies of solar collector fluid control systems have utilized computer simulations of collector and piping dynamics to evaluate stability and response characteristics. To obtain reasonable simulation accuracy requires substantial computer memory and time, and is well beyond the capability of small desk-top computers. Here a linearized steady state frequency response is derived for parabolic trough collectors and for connecting piping, which can be used in standard gain-phase analyses to evaluate system stability and closed loop frequency response. The frequency response characteristics of a typical collector string and piping are used in a gain-phase analysis to get some insight into the effect on system stability of various system parameters such as controller gain, sensor and controller time constants, and sensor location.

Physical Description

Pages: 27

Notes

NTIS, PC A03/MF A01.

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  • ASME winter annual meeting, Chicago, IL, USA, 16 Nov 1980

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  • Report No.: SAND-80-0385C
  • Report No.: CONF-801102-5
  • Grant Number: AC04-76DP00789
  • Office of Scientific & Technical Information Report Number: 5040961
  • Archival Resource Key: ark:/67531/metadc1056246

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1980

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 2, 2018, 1:19 p.m.

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Schindwolf, R. Frequency response analysis of fluid control systems for parabolic trough solar collectors, article, January 1, 1980; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc1056246/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.