Demonstration of heat recovery system for grain drying bins. Final report
The condensation type heat recovery system shown was installed on the grain drying bin on the Elmer B. Oberbroeckling farm. During the grain drying process 15,500 bu of corn was dried by the continuous drying process with about 6' of corn in the bin. Using the grain drying heat recovery system considerable moisture was condensed out and a 15.89% savings was experienced over the previous year. 5500 bu of corn was dried by the batch process using the heat recovery system and a 22.5% savings was experienced over the previous year. The basis of comparison was cost/point/bu of corn dried. It was intuitively obvious during the demonstration that a heat exchanger twice as large would produce better results. The escaping air was still too hot. It moved too fast through the heat exchanger. It did not have time to release enough of its heat energy to the incoming air through the condenser plate. It is recommended that a larger heat exchanger be obtained and used to demonstrate the full effectiveness of this system.
- Research Organization:
- Oberbroeckling (Elmer B.), New Vienna, IA (USA); Moore (Cecil L.), New Vienna, IA (USA)
- DOE Contract Number:
- FG47-80R701115
- OSTI ID:
- 5343753
- Report Number(s):
- DOE/R7/01115-T1; ON: DE84007722
- Country of Publication:
- United States
- Language:
- English
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