Control system analysis for off-peak auxiliary heating of passive solar systems

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A computer simulation method is presented for the design of an electrical auxiliary energy system for passive solar heated structures. The system consists of electrical mats buried in the ground underneath the structure. Energy is stored in the ground during utility off-peak hours and released passively to the heated enclosure. An optimal control strategy is used to determine the system design parameters of depth of mat placement and minimum instaled electrical heating capacity. The optimal control applies combinations of fixed duration energy pulses to the heater, which minimize the room temperature error-squared for each day, assuming advance knowledge of the ... continued below

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Pages: 5

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Murray, H.S.; Melsa, J.L. & Balcomb, J.D. January 1, 1980.

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Description

A computer simulation method is presented for the design of an electrical auxiliary energy system for passive solar heated structures. The system consists of electrical mats buried in the ground underneath the structure. Energy is stored in the ground during utility off-peak hours and released passively to the heated enclosure. An optimal control strategy is used to determine the system design parameters of depth of mat placement and minimum instaled electrical heating capacity. The optimal control applies combinations of fixed duration energy pulses to the heater, which minimize the room temperature error-squared for each day, assuming advance knowledge of the day's weather. Various realizable control schemes are investigated in an attempt to find a system that approaches the performance of the optimal control system.

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Pages: 5

Notes

Dep. NTIS, PC A02/MF A01.

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  • Systems simulation and economics analysis conference, San Diego, CA, USA, 23 Jan 1980

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  • Report No.: LA-UR-80-246
  • Report No.: CONF-800101-7
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5625298
  • Archival Resource Key: ark:/67531/metadc1090997

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1980

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  • Feb. 10, 2018, 10:06 p.m.

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  • May 30, 2018, 12:34 p.m.

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Murray, H.S.; Melsa, J.L. & Balcomb, J.D. Control system analysis for off-peak auxiliary heating of passive solar systems, article, January 1, 1980; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1090997/: accessed July 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.