Low Temperature Grain Drying with Solar Heat

1978 ◽  
Vol 21 (1) ◽  
pp. 0170-0175 ◽  
Author(s):  
H. H. Converse ◽  
G. H. Foster ◽  
D. B. Sauer
Keyword(s):  
Low Temperature ◽  
Solar Heat ◽  
Grain Drying

Heat Pump for Low-Temperature Grain Drying

1983 ◽  
Vol 26 (4) ◽  
pp. 1234-1238 ◽  
Author(s):  
M. R. Hogan ◽  
D. L. Ayers ◽  
R. E. Muller ◽  
Jr. ◽  
G. H. Foster ◽  
...  
Keyword(s):  
Low Temperature ◽  
Heat Pump ◽  
Grain Drying

scholarly journals Assessment of a Low Temperature Closed-Cycle Grain Drying System

2019 ◽  
Vol 8 (2) ◽  
pp. 80
Author(s):  
Mingjun Ma ◽  
Kurt A. Rosentrater
Keyword(s):  
Seed Germination ◽  
Low Temperature ◽  
Drying Methods ◽  
Water Removal ◽  
Closed Cycle ◽  
Pump System ◽  
Heat Pump System ◽  
Grain Drying ◽  
Drying System ◽  
Drying Efficiency

This study analyzed the drying efficiency of a prototype low temperature closed-cycle grain drying system. The main principle of this drying system was the heat pump system working as a dehumidifier. The main component of this drying equipment included a compressor, a condenser, twin evaporators, and a fan. Two drying studies (denoted as trial 1 and trial 2) were conducted to assess the overall drying performance of this low temperature drying system. To calculate the drying efficiency, the total energy consumption was divided by the amount of water removal for each trial; the drying efficiency was reported in the form of Btu/lb of water removal. We also tested corn seed germination to determine if this drying process had an effect on seed germination performance. The drying efficiency results for trial 1 and 2 were 1036 Btu/lb water removal and 869 Btu/lb water removal, respectively; compared to other on-farm drying methods this drying system had fairly high drying efficiency. The germination test results showed that this drying system had no adverse effect on germination performance.

Cooling roofs through low temperature solar-heat transformations in hydrophilic porous materials

2013 ◽  
Vol 7 (2) ◽  
pp. 235-243 ◽  
Author(s):  
D. Karamanis ◽  
E. Kyritsi ◽  
S. Krimpalis ◽  
Ε. Vardoulakis ◽  
G. Gorgolis ◽  
...  
Keyword(s):  
Low Temperature ◽  
Porous Materials ◽  
Solar Heat

Energy Usage for Low Temperature Grain Drying with Optimized Management

1983 ◽  
Vol 26 (2) ◽  
pp. 0594-0600 ◽  
Author(s):  
D. G. Colliver ◽  
R. M. Peart ◽  
R. C. Brook ◽  
J. R. Barrett ◽  
Jr.
Keyword(s):  
Low Temperature ◽  
Energy Usage ◽  
Grain Drying

scholarly journals Economic analysis of low-temperature grain drying

2020 ◽  
pp. 930
Author(s):  
Pricila Araújo Santana ◽  
Daniela de Carvalho Lopes ◽  
Antonio José Steidle Neto
Keyword(s):  
Low Temperature ◽  
Economic Analysis ◽  
Net Present Value ◽  
Cost Effective ◽  
Economic Feasibility ◽  
Cost Ratio ◽  
Labor Costs ◽  
Benefit Cost Ratio ◽  
Furnace Fuel ◽  
Grain Drying

The main objective of this study was to simulate the economic feasibility of low-temperature grain drying systems considering Brazilian conditions and using three drying capacities, seven grain types and two furnace fuels. For this, 42 scenarios were simulated and compared among themselves by using an economic analysis based on the cash flow model with project lifetime of 20 years. The indices net present value, payback period, benefit-cost ratio and internal rate of return were applied during the analyses. Simulations showed that drying of coffee and beans in large systems presented higher economic feasibility, regardless of the furnace fuel used. All simulated scenarios were cost-effective provided that at least two drying cycles are performed per year. Labor costs, social taxes, grain type and drying capacity most affected the profitability of this kind of investment, while the furnace fuel less influenced the evaluated economic indices.

scholarly journals Study of kinetics of grain drying in a warehouse

2020 ◽  
pp. 87-89
Author(s):  
Mikhail Gennadievich Zagoruyko ◽  
Sergey Anatolyevich Pavlov
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Cooling Zone ◽  
Moisture Removal ◽  
Drying Method ◽  
Grain Drying ◽  
The Usa ◽  
Low Temperature Drying ◽  
Kinetics Of ◽  
Corn Grain

The article discusses a two-stage drying method, including high-temperature and low-temperature drying, is widely used in the USA, France, Italy, especially for corn grain. In this case, the cooling zone in high-temperature dryers is transferred to a drying room, and cooling is carried out in special coolers: in active ventilation bins, platforms or in warehouses. To increase the efficiency of this method, the calculation of the supply of heated grain, the number of mobile fans was performed, and the duration of cooling and moisture removal were experimentally determined.

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