SOLAR, INDUSTRIAL PROCESS-HEAT APPLICATIONS IN SELECTED TURKISH INDUSTRIES

We discuss the potential and economic feasibility of solar, industrial process-heat applications in the Turkish food, textile and chemical i ndustries. The study covers 18 sites and end-use temperatures up to 12 0 and 150-degrees-C. A solar system composed of parabolic troughs but without thermal storage and to be backed up by the existing convention al boiler is chosen. The system-size range investigated is 500-20,000 m2. The economic criteria applied are net present value analysis and t he determination of internal rate of return. Break-even net fuel price s and break-even system sizes, which make the net present value equal to zero, are also calculated. Levelized energy-costs analysis and the method of the discounted pay-back period have been included in the stu dy.