Numerical investigation on packing density and inlet configurations of hollow fibres and their effects on flow
Journal Title: Scientific Journal of Environmental Sciences - Year 2016, Vol 5, Issue 11
Abstract
This study aims to investigate the changes in output permeate flowrate of ultrafiltration hollow fibres with double - end configuration. Different parameters such as packing density, feed pressure and location of feed inlet are studied using Computational Fluid Dynamics (CFD). This study adopts the numerical approach to predict how each of the factors influence the output (i.e. flowrate) of the filtration process. Preliminary studies were done to validate the numerical predictions against existing literature, showing good agreement with available data. The effect of packing density on hollow fibre with double-end configuration was then investigated. The ratio of allowable spaces between fibres, denoted by ε, was used to quantify the packing density. 2 sets of numerical model for double-end hollow fibre with ε ranging from 0.2 to 0.8 were simulated for fibre length of 1 metre and 2 metre respectively. Results showed that a higher ε value used in for the packing of hollow fibres lead to higher permeate flowrate. However, this increment stagnates even as ε is increased beyond 0.6. Other factors such as inlet positioning and fibre length, which affects feed pressure distribution were also investigated. Simulation results concluded that feed pressure distribution and output flowrate varies depending on where the inlet is situated. The proposed new inlet located along the fibre length also improves the uniformity of the feed pressure distribution along hollow fibres. This makes positioning of the inlet crucial to the overall performance of the ultrafiltration module.
Authors and Affiliations
Keng Boon Lim| Professional Officers’ Division, Singapore Institute of Technology, Singapore., Peng Cheng Wang| Engineering, Singapore Institute of Technology, Singapore., Hui An| Engineering, Singapore Institute of Technology, Singapore.
Keywords
Related Articles
- EP ID EP12
- DOI 10.14196/sjes.v5i11.2292
- Views 810
- Downloads 73
Mathematical modeling to monitor physiochemical interaction with e. coli transport in homogeneous fine sand on the application of colloid filtration method in port harcourt, Niger delta of Nigeria
Excessive usage of different types of chemical constituents through the activities of man has caused a lot of pollution in soil and water environment. The deltaic environment are not left behind, in fact it is an area to...
Ground water quality in some rural area of khathumar thesile at alwar distrit Rajasthan, India
Wateris a resource basic amenity and Universal Solvent is Shared by population. Thephysic-chemical quality study of Khathumer Thesil of some rural area. The waterquality of 5 Hand pumps of 5 villages. Water Sampal were a...
Numerical investigation on packing density and inlet configurations of hollow fibres and their effects on flow pattern within ultrafiltration modules
This study aims to investigate the changes in output permeate flowrate of ultrafiltration hollow fibres with double - end configuration. Different parameters such as packing density, feed pressure and location of feed in...
Negative externality issues from the operations of home based enterprises (HBEs) in Aba Urban, Abia State, Nigeria
Home Based Enterprises (HBEs) are seen as having potential for providing employment for the urban poor. They demonstrate evidence of entrepreneurship among urban residents and a wide range of trades come within the umbre...
Demand for clean energies efficient development in buildings technologies
The increased availability of reliable and efficient energy services stimulates new development alternatives. This article discusses the potential for such integrated systems in the stationary and portable power market i...