Abstract

This chapter presents an economic analysis of a passive solar distillation unit. The net present worth (NPW), benefit-cost ratio, payback period (PP), and internal rate of return (IRR) of a solar distillation unit were calculated using initial and maintenance expenses, system life, and estimations of the cost of unit mass of distilled water. Solar distillation is a low-carbon technique that is both easy and cost-effective. The Net Present Value (NPW), Benefit-Cost Ratio (BCRR), Payback Period (PP), and Internal Rate of Return (IRR) were calculated and determined to be Rs. 26945.72, 1.5632, 1.538 year, and 50%, respectively. Solar energy was shown to be one of the most appealing sources of energy for producing distilled water in this study.

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