Cover Image

Flow Simulation Of Ammonia Reactant Gases Via Micromixer

The conventional method to produce ammonia employs the Haber–Bosch process at extremely high temperature and pressure. These working conditions not only consumes tremendous amount of energy, it has higher safety risk and yields very low conversion. Prior to study on microreactor, it is essential to...

Full description

Saved in:
Bibliographic Details
Main Author: MOHD RADZANI, AHMAD SHAHIR
Format: Final Year Project
Language:English
Published: IRC 2014
Subjects:
TP Chemical technology
Online Access:http://utpedia.utp.edu.my/14513/1/DISSERTATION_FINAL.pdf
http://utpedia.utp.edu.my/14513/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my-utp-utpedia.14513
record_format eprints
spelling my-utp-utpedia.145132017-01-25T09:36:46Z http://utpedia.utp.edu.my/14513/ Flow Simulation Of Ammonia Reactant Gases Via Micromixer MOHD RADZANI, AHMAD SHAHIR TP Chemical technology The conventional method to produce ammonia employs the Haber–Bosch process at extremely high temperature and pressure. These working conditions not only consumes tremendous amount of energy, it has higher safety risk and yields very low conversion. Prior to study on microreactor, it is essential to understand the hydrodynamics of flow in microchannel. The results will serve as a stepping point to design a microreactor for the ammonia synthesis in a very economical, energy saving, safer and achieving higher conversion and yield than the conventional Haber–Bosch process. At low gas flowrates, mixing of nitrogen and hydrogen gases are less effective as the flow regime within a microchannel is largely laminar. This work aims to enhance mixing of flow as well as shortening the residence time for reaction to occur by investigating the hydrodynamics of the mixing of nitrogen and hydrogen gases in different geometry configurations of a microchannel in order. Three geometry configurations were developed and tested via Computational Fluid Dynamics simulation. Velocity and Pressure distribution of the microsystem was analysed extensively contributed to approximating the mixing efficiency for ammonia reactant gases. The study had found that in all models, the pressure in micromixers ranged from approximately minimum 100 kPa abs. to 102.5 kPa abs. maximum and mostly working pressure is established at 101.3 kPa which conformed to desired atmospheric pressure. The flow of Nitrogen gas was found to be uniform across the micromixer gaining maximum speed at most intersections as it had less volume fraction. Velocity distribution for Hydrogen has wider spectrum which reflected good mixing strategies in many sections of the micromixer as well as center of mixing chambers IRC 2014-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/14513/1/DISSERTATION_FINAL.pdf MOHD RADZANI, AHMAD SHAHIR (2014) Flow Simulation Of Ammonia Reactant Gases Via Micromixer. IRC, Universiti Teknologi PETRONAS. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
MOHD RADZANI, AHMAD SHAHIR
Flow Simulation Of Ammonia Reactant Gases Via Micromixer
description The conventional method to produce ammonia employs the Haber–Bosch process at extremely high temperature and pressure. These working conditions not only consumes tremendous amount of energy, it has higher safety risk and yields very low conversion. Prior to study on microreactor, it is essential to understand the hydrodynamics of flow in microchannel. The results will serve as a stepping point to design a microreactor for the ammonia synthesis in a very economical, energy saving, safer and achieving higher conversion and yield than the conventional Haber–Bosch process. At low gas flowrates, mixing of nitrogen and hydrogen gases are less effective as the flow regime within a microchannel is largely laminar. This work aims to enhance mixing of flow as well as shortening the residence time for reaction to occur by investigating the hydrodynamics of the mixing of nitrogen and hydrogen gases in different geometry configurations of a microchannel in order. Three geometry configurations were developed and tested via Computational Fluid Dynamics simulation. Velocity and Pressure distribution of the microsystem was analysed extensively contributed to approximating the mixing efficiency for ammonia reactant gases. The study had found that in all models, the pressure in micromixers ranged from approximately minimum 100 kPa abs. to 102.5 kPa abs. maximum and mostly working pressure is established at 101.3 kPa which conformed to desired atmospheric pressure. The flow of Nitrogen gas was found to be uniform across the micromixer gaining maximum speed at most intersections as it had less volume fraction. Velocity distribution for Hydrogen has wider spectrum which reflected good mixing strategies in many sections of the micromixer as well as center of mixing chambers
format Final Year Project
author MOHD RADZANI, AHMAD SHAHIR
author_facet MOHD RADZANI, AHMAD SHAHIR
author_sort MOHD RADZANI, AHMAD SHAHIR
title Flow Simulation Of Ammonia Reactant Gases Via Micromixer
title_short Flow Simulation Of Ammonia Reactant Gases Via Micromixer
title_full Flow Simulation Of Ammonia Reactant Gases Via Micromixer
title_fullStr Flow Simulation Of Ammonia Reactant Gases Via Micromixer
title_full_unstemmed Flow Simulation Of Ammonia Reactant Gases Via Micromixer
title_sort flow simulation of ammonia reactant gases via micromixer
publisher IRC
publishDate 2014
url http://utpedia.utp.edu.my/14513/1/DISSERTATION_FINAL.pdf
http://utpedia.utp.edu.my/14513/
_version_ 1739832011312332800
score 13.211869

Similar Items