Cover Image

Modeling the release of urea from coated urea: The constant release stage

Controlled release fertilizer (CRF) plays an important role in nutrient loss prevention by plants and its utilization enhancement. This study uses multi-diffusion model to simulate the release of urea for two coating materials: modified polyolefin (MPO) and latex film, based on COMSOL Multiphysics s...

Full description

Saved in:
Bibliographic Details
Main Authors: Trinh, T.H., KuShaari, K., Shuib, A.S., Bin Ismail, L., Basit, A., Azeem, B.
Format: Article
Published: Trans Tech Publications Ltd 2014
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904178938&doi=10.4028%2fwww.scientific.net%2fAMR.970.166&partnerID=40&md5=dd1140d1e0dcd9359efa04c4c5e47113
http://eprints.utp.edu.my/32329/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utp.eprints.32329
record_format eprints
spelling my.utp.eprints.323292022-03-29T05:03:57Z Modeling the release of urea from coated urea: The constant release stage Trinh, T.H. KuShaari, K. Shuib, A.S. Bin Ismail, L. Basit, A. Azeem, B. Controlled release fertilizer (CRF) plays an important role in nutrient loss prevention by plants and its utilization enhancement. This study uses multi-diffusion model to simulate the release of urea for two coating materials: modified polyolefin (MPO) and latex film, based on COMSOL Multiphysics software. Effective diffusivity and lag time (t0) are determined based on experimental data. Modeling results well simulate the experimental data of "constant release" stage. Standard error of estimate (SEE) ranges from 0.012 - 0.017 for MPO and 0.0316 for Latex film. The validated model is then utilized to study the effect of coating thickness (l), saturated urea concentration (Csat) and effective diffusivity (De) on the urea release profile. Release time increase with increasing coating thickness or decreasing saturated urea concentration, effective diffusivity. In addition, a change in effective diffusivity does not make significant change in percentage of urea at the end of "constant release" stage. © (2014) Trans Tech Publications, Switzerland. Trans Tech Publications Ltd 2014 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904178938&doi=10.4028%2fwww.scientific.net%2fAMR.970.166&partnerID=40&md5=dd1140d1e0dcd9359efa04c4c5e47113 Trinh, T.H. and KuShaari, K. and Shuib, A.S. and Bin Ismail, L. and Basit, A. and Azeem, B. (2014) Modeling the release of urea from coated urea: The constant release stage. Advanced Materials Research, 970 . pp. 166-171. http://eprints.utp.edu.my/32329/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Controlled release fertilizer (CRF) plays an important role in nutrient loss prevention by plants and its utilization enhancement. This study uses multi-diffusion model to simulate the release of urea for two coating materials: modified polyolefin (MPO) and latex film, based on COMSOL Multiphysics software. Effective diffusivity and lag time (t0) are determined based on experimental data. Modeling results well simulate the experimental data of "constant release" stage. Standard error of estimate (SEE) ranges from 0.012 - 0.017 for MPO and 0.0316 for Latex film. The validated model is then utilized to study the effect of coating thickness (l), saturated urea concentration (Csat) and effective diffusivity (De) on the urea release profile. Release time increase with increasing coating thickness or decreasing saturated urea concentration, effective diffusivity. In addition, a change in effective diffusivity does not make significant change in percentage of urea at the end of "constant release" stage. © (2014) Trans Tech Publications, Switzerland.
format Article
author Trinh, T.H.
KuShaari, K.
Shuib, A.S.
Bin Ismail, L.
Basit, A.
Azeem, B.
spellingShingle Trinh, T.H.
KuShaari, K.
Shuib, A.S.
Bin Ismail, L.
Basit, A.
Azeem, B.
Modeling the release of urea from coated urea: The constant release stage
author_facet Trinh, T.H.
KuShaari, K.
Shuib, A.S.
Bin Ismail, L.
Basit, A.
Azeem, B.
author_sort Trinh, T.H.
title Modeling the release of urea from coated urea: The constant release stage
title_short Modeling the release of urea from coated urea: The constant release stage
title_full Modeling the release of urea from coated urea: The constant release stage
title_fullStr Modeling the release of urea from coated urea: The constant release stage
title_full_unstemmed Modeling the release of urea from coated urea: The constant release stage
title_sort modeling the release of urea from coated urea: the constant release stage
publisher Trans Tech Publications Ltd
publishDate 2014
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904178938&doi=10.4028%2fwww.scientific.net%2fAMR.970.166&partnerID=40&md5=dd1140d1e0dcd9359efa04c4c5e47113
http://eprints.utp.edu.my/32329/
_version_ 1738657372002320384
score 13.211869

Similar Items