Coal-Fired Boilers at Navy Bases, Navy Energy Guidance Study, Phase II and III.
Final rept. for period ending May 79,
BECHTEL NATIONAL INC SAN FRANCISCO CA
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Conceptual design and parametric cost studies of steam and power generation systems using coal-fired stoker boilers and stack gas scrubbers in several sizes were performed. Central plants containing four equal-sized boilers and central flue gas desulfurization facilities were shown to be less expensive than decentralized facilities with the four boilers plus scrubbers at diverse sites. Life-cycle costs of steam generation in new central coal-fired facilities were shown to be lower than those for continued burning of fuel oil in existing boilers, when coal costs 30ton 1.41 Btu and oil costs 3.16million Btu. It is cost-effective to add extra facilities to cogenerate electric power along with steam in new coal-fired systems, compared to purchasing electricity at a price of 0.033 33 mills per kilowatt-hour, because ofthe low cost per unit of coal energy. High steam-transmission pressures 600 psia lead to lower-cost piping systems than lower pressures 300 psia and 100 psia. Coal and waste haul costs are small compared to other system costs. Author
- Electric Power Production and Distribution
- Air Conditioning, Heating, Lighting and Ventilating