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Title: Feasibility evaluation: solar heated textile process water. Volume I. Program results. Final report

Technical Report ·
DOI:https://doi.org/10.2172/5234759· OSTI ID:5234759

A feasibility study was conducted to evaluate the technical and economic constraints associated with the use of solar heating to produce process water for the textile industry. The study developed energy-use data based upon actual plant processes to (1) determine current water needs for the industry by temperature level, and (2) to assess the probable future impact of conservation schemes upon possible solar concepts. A realistic weather and solar-flux-environment definition was made based upon analysis of actual weather data for the southeast Piedmont region, where most of the textile-finishing plants are located. Collector-area requirements to meet textile water demands of varying amounts and temperatures were generated, using assembled test data for six collector types ranging from simple flat-plate areas to tracking-concentrator configurations. Energy-collection densities for various types of collectors operating in a representative Southeast environment and producing process water of varying temperatures were generated. Using the assembled test data and performance predictions for various collector types and for various textile-process water-temperature levels, an after-taxes, rate-of-return economic analysis was performed, envisioning possible future energy-price scenarios, to determine allowable installed-collector costs per square foot. These ROR calculations indicate the cost levels at which collector configurations would provide incentive to industry to heat by solar processes as opposed to fossil fuels. Additionally, studies were conducted to determine the effects of possible Federal inducements to solar conversion in the form of investment-tax-credit changes. Lastly, the effect upon economic viability of solar concepts due to the establishment of a leasing industry was evaluated.

Research Organization:
Clemson Univ., S.C. (USA). Coll. of Engineering
Sponsoring Organization:
USDOE
DOE Contract Number:
EY-76-S-09-0885
OSTI ID:
5234759
Report Number(s):
SRO/0885-77/2/1
Country of Publication:
United States
Language:
English