Computer model for estimating cogeneration system performance and economic feasibility Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/nv935529k

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  • Cogeneration is the simultaneous generation and use of both electricity (or mechanical power) and thermal energy from a single fuel source. It is a technology that has been used for years by industries, commercial institutions, and municipalities that need both heat and electrical power. An analytical approach has been developed to determine cogeneration feasibility. The analysis is designed to estimate economic feasibility based on the performance characteristics of different types of equipment, including wood-fired boilers. It can be used to compare several options for cogeneration systems. The economic analysis is based on simple payback. A microcomputer spreadsheet application program performs the technical analysis. The program offers many features that are designed to improve and simplify prediction of cogeneration system performance: 1) Available energy calculation for wood fuel based on species and moisture content. Also uses natural gas and fuel oils. 2) Hourly steam and electrical load profiles for up to 6 typical operating days per year. 3) Three steam turbine types: Condensing, Backpres sure, Autoextraction. 4) Full and part load performance modelling. 5) Three operating modes: Thermal load following, Electrical load following, Constant load operation. 6) Steam enthalpy calculation for any operating conditions. 7) User-defined utility rate structure. 8) Independent value for excess electricity sold. Our approach is to compare the annual cost of providing thermal and electrical power separately and independently (i.e., electric utility power and a steam boiler) to that of producing the required power simultaneously (cogeneration). This requires an understanding of the power requirements, the utility rate structures, fuel costs, operation and maintenance costs, and available technology for power production. The program calculates fuel requirements, electrical energy and power production, costs, equipment size and cost, total cost savings, and simple payback for several cogeneration alternatives.
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  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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  • description.provenance : Made available in DSpace on 2012-08-24T16:41:41Z (GMT). No. of bitstreams: 1 SimondsJohn1991.pdf: 447206 bytes, checksum: 96277097019f9288f46a8030118a79ec (MD5) Previous issue date: 1990-07-18
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-08-24T16:40:01Z (GMT) No. of bitstreams: 1 SimondsJohn1991.pdf: 447206 bytes, checksum: 96277097019f9288f46a8030118a79ec (MD5)
  • description.provenance : Submitted by Erin Clark (ecscannerosu@gmail.com) on 2012-08-24T16:36:08Z No. of bitstreams: 1 SimondsJohn1991.pdf: 447206 bytes, checksum: 96277097019f9288f46a8030118a79ec (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-08-24T16:41:41Z (GMT) No. of bitstreams: 1 SimondsJohn1991.pdf: 447206 bytes, checksum: 96277097019f9288f46a8030118a79ec (MD5)

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