Study of thermal energy storage system information for pulp and paper industry: Final report
Two TES systems were identified in the US pulp and paper industry, whereas at least 22 TES systems were being utilized in Scandinavia's pulp and paper mills. Although many Scandinavian TES systems were installed in earlier years, the trend to install these systems continues to this time. The most realistic alternative with which to compare an installed TES system appears to be a power plant with an auxiliary condenser but no accumulator. Mill case study results indicate that a TES system permits oil savings of 0.03 barrels per ton (bbl/t) of mill production. Range of oil savings by energy conservation at the mills was 0.016 to 0.045 bbl/t of production. Factors affecting oil savings by TES system technology are very mill specific. Five mills were studied in detail in the field: four in Scandinavia and one in USA. Oil savings per unit of pulp production realized from a TES system will remain approximately constant at the savings identified above through the remainder of this century. The before-taxes payback time for capital investment of a TES system was between 0.7 and 3.1 years for the mills studied and averaged 2.5 years. The before-taxes return on investment was between 33 and 153% for the case example TES systems. Projected direct oil savings in the US pulp and paper industry resulting from the installation of TES systems was estimated for 1985 to be between 300,000 and 594,000 barrels per year. Similar projected savings for year 2000 ranged from 1,233,000 to 1,576,000 barrels per year. These calculated oil savings do not include the additional benefits in oil savings that can be realized when hog fuel is substituted for oil.
- Research Organization:
- Edde (Howard), Inc., Bellevue, WA (USA); Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 7051627
- Report Number(s):
- ORNL/Sub-86X-95003/81; ON: DE87005910
- Country of Publication:
- United States
- Language:
- English
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250600 -- Energy Storage-- Thermal
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320300* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes
ECONOMIC ANALYSIS
ECONOMICS
ENERGY CONSERVATION
ENVIRONMENTAL IMPACTS
EQUIPMENT
INDUSTRY
PAPER INDUSTRY
PAYBACK PERIOD
SURVEYS
THERMAL ENERGY STORAGE EQUIPMENT
USES
WOOD PRODUCTS INDUSTRY