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Electronic Resource
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SAND Report: SAND78-8195, June 1979.
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Library's review
ABSTRACT:
This report documents the work performed during the second phase of an assessment of the use of chemical reaction systems (CRS) as a means to store or transport thermal energy. The Phase I study, which was carried out under contract with EPRI, resulted in a catalogue of potential heat
This report documents the work performed during the second phase of an assessment of the use of chemical reaction systems (CRS) as a means to store or transport thermal energy. The Phase I study, which was carried out under contract with EPRI, resulted in a catalogue of potential heat
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sources, end users, and a number of candidate chemical reaction systems. Four promising combinations of source/reaction/user were selected and the final result was a conceptual design and major equipment cost estimate for each system. The Phase I study is documented in EPRI RP 1086-1. In the current Phase II study, technical and economic assessment of three CRSs were continued under contract with Sandia Laboratories. The objectives were to estimate the life cycle cost of storing or transporting waste heat via these CRSs and to compare it with the cost of heat recovery via conventional technologies. This latter objective was approached by selection and design of a commercially available alternative system for each CRS, as a basis for evaluating attractiveness of CRS. Estimation of total capital, operating and maintenance costs, and calculation of life cycle cost were then carried out for all systems. In addition, cost sensitivities with respect to system capacity, transmission distance, and plant life were analyzed. Finally, each CRS was contrasted with its conventional alternative and was analyzed for its market potential. It was found that none of the CRSs studied were economically competitive against a commercially available alternative system nor against fuels (natural gas and oil) at current prices. However, one of the CRSs has the potential for becoming economical in selected applications within the 1980-2000 period. should fuel costs escalate considerably above current levels. In general, CRS appears to have the best potential when coupled with a large, continuous heat source for transport applications within relatively short distances. Show Less