The Interphase Mass Transfer Analysis of Enveloped ControlledRelease Fertilizer’Nutrition Release
[1]ZHANG Baolin,LI Yansheng,LI Hongping.The Interphase Mass Transfer Analysis of Enveloped ControlledRelease Fertilizer’Nutrition Release[J].Journal of Zhengzhou University (Engineering Science),2009,30(03):118-121.
Copy
Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
30卷
Number of periods:
2009年03期
Page number:
118-121
Column:
Public date:
1900-01-01
- Title:
- The Interphase Mass Transfer Analysis of Enveloped ControlledRelease Fertilizer’Nutrition Release
- Keywords:
- controlled-release fertilizers; spherical coordinates; modified double membrane theory; life distribution function; Nutrient release rate
- CLC:
- -
- DOI:
- -
- Abstract:
- The envelope film was treated as controlled release film one and the imaginary film at the interfaceof the fertilizer and the water of the soil was treated as controlled release film two．The model of inter masstransfer of nutrition was constructed in spherical C00rdinates based on Fick’S law．combined with improveddouble films theorem of mass transfer and liquid film lire function．The equations system was solved with Laplace transform method and the expression of nutrition release rate was obtained with the unification of Laplacetransform and liquid film life distribution function without the employment of the inverse Laplace transform．The theoretical basis was provided for further research of nutrition release of controlled release fertilizers，meanwhile a method of computing mass transfer rate in spherical coordinates was given．
- References:
- -
- Similar References:
Memo
-
Last Update:
1900-01-01