The fermentation system, wireless completely stirred tank air For a change of the yield decrease by 20% causes the NPV IRR and B/C Ratio was lower than a given threshold, as a result, this system is not worth the investment.
The system Anaerobic stirred tank completely. For a change of returns dropped 20 percent, making NPV IRR and B / C Ratio is below a certain threshold. As a result, this system is not worth the investment.
The anaerobic digestion system completely stirred tank For the change of yield decrease 20 makes NPV and IRR B / C Ratio lower criterion. As a result, this system is not worth the investment.