Table 8 Economic parameters of the DAVD for drying Sage leaves.
From: Automated vacuum drying kinetics, thermodynamics, and economic analysis of sage leaves
Economic analysis | Drying temperature, °C & operating pressure, kPa | ||||||||
|---|---|---|---|---|---|---|---|---|---|
40 °C | 50 °C | 60 °C | |||||||
atm | −5 kPa | −10 kPa | atm | −5 kPa | −10 kPa | atm | −5 kPa | −10 kPa | |
Specific energy consumption, KJ/kg | 7344 | 5091.72 | 4095 | 5148 | 4728.4 | 3383.5 | 4006.8 | 3844.8 | 2160 |
Quantity of dried sage leaves, kg/year | 823.6 | 1400 | 2000 | 1400 | 1750 | 2333.3 | 2000 | 2800 | 4666.7 |
Saving after 1 year | 617.65 | 1050 | 1500 | 1050 | 1312.5 | 1750 | 1500 | 2100 | 3500 |
Payback period, year | 0.509 | 0.301 | 0.211 | 0.301 | 0.241 | 0.181 | 0.211 | 0.151 | 0.091 |
