Energy Use for Field Operations, Crop Drying, and Swine Housing on University Farms Hanna, H. Mark Hanna, H. Mark Harmon, Jay Schweitzer, Dana Harmon, Jay
dc.contributor.department Agricultural and Biosystems Engineering 2018-02-18T09:34:00.000 2020-06-29T22:42:44Z 2020-06-29T22:42:44Z Fri Jan 01 00:00:00 UTC 2016 2016-01-01
dc.description.abstract <p>Energy is an input to agricultural production. Knowing typical values can help farmers to evaluate management options. Diesel, propane, and electrical energy used on the farm during selected field operations, crop drying, and in swine housing were measured on Iowa State University research and demonstration farms. Baseline values were measured and tractor operation management styles were compared.</p> <p>Strategies for saving fuel were confirmed in 43 of 48 tractor operation comparisons. Comparisons of tillage depth, gear/engine speed, travel speed, and use of front-wheel-assist averaged 28%, 25%, 17%, and 13% more energy used than the fuel-saving alternative. Single-drive wheels used 8% more energy than duals, but results were mixed when comparing different tire inflation pressures.</p> <p>Energy used in high-temperature drying in bins ranged from 4.67 to 7.70 MJ kg<sup>-1</sup> (2010 to 3310 Btu lb<sup>-1</sup>). Most of the energy was from propane (96%). Propane use averaged 0.0027 L kg<sup>-1</sup> (0.018 gal bu<sup>-1</sup>) per percentage point of moisture removed.</p> <p>Minimum ventilation fans had the highest duty cycle in a curtain-sided swine finishing barn. Electrical use was greater in tunnel-ventilated than curtain-sided barns (29.0 vs. 20.9 kWh pig space<sup>-1</sup> yr<sup>-1</sup>) and propane use was greater in wean-to-finish than finish-only operations (10.6 L vs. 2.5 L pig space<sup>-1</sup> yr<sup>-1</sup>, 2.8 gal vs. 0.67 gal pig space<sup>-1</sup> yr<sup>-1</sup>).</p>
dc.description.comments <p>This article is from Applied Engineering in Agriculture. 32(6): 769-781. (doi: <a href="" target="_blank">10.13031/aea.32.11720</a>). Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 2080
dc.identifier.contextkey 10090244
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/798
dc.language.iso en
dc.source.bitstream archive/|||Sat Jan 15 01:57:07 UTC 2022
dc.source.uri 10.13031/aea.32.11720
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Energy efficiency
dc.subject.keywords Fuel consumption
dc.subject.keywords Grain drying
dc.subject.keywords Machinery management
dc.subject.keywords Tractor
dc.subject.keywords Ventilation
dc.title Energy Use for Field Operations, Crop Drying, and Swine Housing on University Farms
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 732298de-2ea9-4502-8fcf-3418080016e1
relation.isAuthorOfPublication 863ffed7-5274-46d6-95cc-47c7d0d5b6ab
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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