Solar production of intermediate temperature process heat. Phase I design. Final report. [For sugarcane processing plant in Hawaii]

Technical Report · Fri Aug 01 04:00:00 EDT 1980

DOI:https://doi.org/10.2172/5035695· OSTI ID:5035695

This report is the final effort in the Phase I design of a solar industrial process heat system for the Hilo Coast Processing Company (HCPC) in Pepeekeo, Hawaii. The facility is used to wash, grind and extract sugar from the locally grown sugarcane and it operates 24 hours a day, 305 days per year. The major steam requirements in the industrial process are for the prime movers (mill turbines) in the milling process and heat for evaporating water from the extracted juices. Bagasse (the fibrous residue of milled sugarcane) supplied 84% of the fuel requirement for steam generation in 1979, while 65,000 barrels of No. 6 industrial fuel oil made up the remaining 16%. These fuels are burned in the power plant complex which produces 825/sup 0/F, 1,250 psi superheated steam to power a turbogenerator set which, in addition to serving the factory, generates from 7 to 16 megawatts of electricity that is exported to the local utility company. Extracted steam from the turbo-generator set supplies the plant's process steam needs. The system consists of 42,420 ft./sup 2/ of parabolic trough, single axis tracking, concentrating solar collectors. The collectors will be oriented in a North-South configuration and will track East-West. A heat transfer fluid (Gulf Synfluid 4cs) will be circulated in a closed loop fashion through the solar collectors and a series of heat exchangers. The inlet and outlet fluid temperatures for the collectors are 370/sup 0/F and 450/sup 0/F respectively. It is estimated that the net useable energy delivered to the industrial process will be 7.2 x 10/sup 9/ Btu's per year. With an HCPC boiler efficiency of 78% and 6.2 x 10/sup 6/ Btu's per barrel of oil, the solar energy system will displace 1489 barrels of oil per year. (WHK)

• Research Organization: Team, Inc., Tucson, AZ (USA)
• Sponsoring Organization: USDOE Assistant Secretary for Conservation and Solar Application
• DOE Contract Number: FC03-79CS30311
• OSTI ID: 5035695
• Report Number(s): DOE/CS/30311-T1
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140704* -- Solar Thermal Power Systems-- Total Energy & Hybrid Systems-- (1980-)
140905
BOILERS
CARBOHYDRATES
COGENERATION
CONCENTRATING COLLECTORS
CONTROL SYSTEMS
COST
DESIGN
DEUS
DIAGRAMS
DISACCHARIDES
DISTRIBUTED COLLECTOR POWER PLANTS
ECONOMIC ANALYSIS
ECONOMICS
ENERGY
ENVIRONMENTAL IMPACTS
EQUIPMENT
FLUIDS
FOOD INDUSTRY
GRAMINEAE
GRASS
HAWAII
HEAT
HEAT TRANSFER FLUIDS
HEATING
INDUSTRIAL PLANTS
INDUSTRY
INSOLATION
MANAGEMENT
NORTH AMERICA
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
PARABOLIC COLLECTORS
PARABOLIC TROUGH COLLECTORS
PAYBACK PERIOD
PERFORMANCE
PIPES
PLANTS
POWER GENERATION
POWER PLANTS
PROCESS HEAT
PRODUCTION
SACCHARIDES
SACCHAROSE
SAFETY
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR POWER PLANTS
SOLAR PROCESS HEAT
SOLAR THERMAL POWER PLANTS
SOLAR TRACKING
SPECIFICATIONS
STEAM GENERATION
STEAM GENERATORS
SUGAR CANE
SUPERHEATING
THERMAL POWER PLANTS
TOTAL ENERGY SYSTEMS
USA
VAPOR GENERATORS
WESTERN REGION