Logo

Use of Multi-Diffusion Model to Study the Release of Urea from Urea Fertilizer Coated with Polyurethane-Like Coating (PULC)

Trinh, Thanh and Ku Shaari, Ku Zilati and Basit, Abdul and Azeem, Babar and Shuib, Anis (2013) Use of Multi-Diffusion Model to Study the Release of Urea from Urea Fertilizer Coated with Polyurethane-Like Coating (PULC). [Citation Index Journal] (In Press)

[img]
Preview
PDF
1311Kb

Abstract

Controlled release fertilizer (CRF) play an important role in nutrient loss prevention and plant's uptake efficiency. This study uses a multi-diffusion model to simulate urea release from urea fertilizers coated with polyurethane-like coating (PULC). In this model, finite element method (FEM) and 2D geometry are applied for three sizes of urea granule using COMSOL Multiphysics software. Modeling results are in agreement with the experimental data for the "constant release" stage. Standard error of estimate (SEE) ranges from 0.00417 to 0.02084 in these simulations. Besides, relationship of coating thickness with release time and percent of urea released at the end of "constant release" stage has also been established.

Item Type:Citation Index Journal
Subjects:T Technology > T Technology (General)
Academic Subject One:Academic Department - Chemical Engineering - Process System Engineering
Departments / MOR / COE:Departments > Chemical Engineering
Research Institutes > Energy
Research Institutes > Institute for Health Analytics
ID Code:10903
Deposited By: Anis Shuib
Deposited On:16 Dec 2013 23:48
Last Modified:16 Dec 2013 23:48

Repository Staff Only: item control page

Document Downloads

More statistics for this item...