Research Article
Modeling the Feasibility of Using Solar Thermal Systems for Meeting the Heating Requirements at Corn Ethanol Production Facilities
Figure 6
Modeled cumulative cost savings (in United States dollars) of a standard flat plate solar array for selected ethanol plant locations. Model input values: = 0.72, = 4.5 W/m2-°C, = 30°C, = $4.74/GJ (initial price of natural gas), = 3.3% (annual increase in price of fuel), = $220/m2.