Outdoor Storage Characteristics of Single-Pass Large Square Corn Stover Bales in Iowa

dc.contributor.author Shah, Ajay
dc.contributor.author Darr, Matthew
dc.contributor.author Webster, Keith
dc.contributor.author Hoffman, Christopher
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T07:37:04.000
dc.date.accessioned 2020-06-29T22:38:57Z
dc.date.available 2020-06-29T22:38:57Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.embargo 2013-03-22
dc.date.issued 2011-10-21
dc.description.abstract <p>Year-round operation of biorefineries can be possible only if the continuous flow of cellulosic biomass is guaranteed. If corn (<em>Zea mays</em>) stover is the primary cellulosic biomass, it is essential to recognize that this feedstock has a short annual harvest window (≤1–2 months) and therefore cost effective storage techniques that preserve feedstock quality must be identified. This study evaluated two outdoor and one indoor storage strategies for corn stover bales in Iowa. High- and low-moisture stover bales were prepared in the fall of 2009, and stored either outdoors with two different types of cover (tarp and breathable film) or within a building for 3 or 9 months. Dry matter loss (DML), changes in moisture and biomass compositions (fiber and ultimate analyses) were determined. DML for bales stored outdoor with tarp and breathable film covers were in the ranges of 5–11 and 14–17%, respectively. More than half of the total DML occurred early during the storage. There were measurable differences in carbon, hydrogen, nitrogen, sulfur, oxygen, cellulose, hemi-cellulose and acid detergent lignin for the different storage treatments, but the changes were small and within a narrow range. For the bale storage treatments investigated, cellulose content increased by as much as 4%s from an initial level of ~41%, hemicellulose content changed by −2 to 1% from ~34%, and acid detergent lignin contents increased by as much as 3% from an initial value of ~5%. Tarp covered bales stored the best in this study, but other methods, such as tube-wrapping, and economics need further investigation.</p>
dc.description.comments <p>This article is from <em>Energies </em>4, no. 10 (2011): 1687–1695, doi:<a href="http://dx.doi.org/10.3390/en4101687" target="_blank">10.3390/en4101687</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/331/
dc.identifier.articleid 1615
dc.identifier.contextkey 3946806
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/331
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1086
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/331/2011_ShahA_OutdoorStorageCharacteristics.pdf|||Fri Jan 14 23:38:40 UTC 2022
dc.source.uri 10.3390/en4101687
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords single-pass corn stover large square bales
dc.subject.keywords dry matter loss (DML)
dc.subject.keywords outside storage characteristics
dc.title Outdoor Storage Characteristics of Single-Pass Large Square Corn Stover Bales in Iowa
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 25d24836-9259-4619-a6e1-971f2049e041
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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