Cover Image

Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions

MLNG-Tiga of Bintulu decided to change their aging mixing-tee configuration in one of their natural gas regenerative heat cycle piping.In the original converging T-junction, hot gas is flowed in the main pipe with cold gas intersecting midway, resulted in thermal mixing.Even though the new design st...

Full description

Saved in:
Bibliographic Details
Main Authors: Pao, W., Zamri, H.
Format: Article
Published: 2023
Online Access:http://scholars.utp.edu.my/id/eprint/34197/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140769472&doi=10.1007%2f978-981-19-1939-8_9&partnerID=40&md5=ffdcfd3cebce2c84ad5c2c2c5dc104f0
Tags: Add Tag
No Tags, Be the first to tag this record!
id oai:scholars.utp.edu.my:34197
record_format eprints
spelling oai:scholars.utp.edu.my:341972023-01-04T02:51:24Z http://scholars.utp.edu.my/id/eprint/34197/ Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions Pao, W. Zamri, H. MLNG-Tiga of Bintulu decided to change their aging mixing-tee configuration in one of their natural gas regenerative heat cycle piping.In the original converging T-junction, hot gas is flowed in the main pipe with cold gas intersecting midway, resulted in thermal mixing.Even though the new design still utilized the concept of converging T-junction, the hot and cold gas are routed to collide with each other before exiting as mixed gas.Since the thermal mixing efficiency is not known, the relative performance of these two mixing-Tee could not be evaluated.The present study focused on the evaluation of thermal mixing of two different T-junctions, namely an intersecting Tee and a colliding Tee, both operated within limited parameters, with the intention to understand the thermal performance.The influence of different configurations of inlets and outlet was investigated numerically using the standard K-ε turbulence model with Liquified Natural Gas (LNG) as the working fluid.Literature survey revealed that a lot of research on T-junction has been conducted on geometric factors such as diameter ratios and different fluid properties, surprisingly, a comparative study on the effects of different flow configuration is yet to be found.The present research showed that due to different impact configurations, the colliding tee offered better thermal mixing compared to the intersecting tee, resulting in higher level of turbulent.Consequently, colliding tee will experience higher temperature fluctuation at 0.25D downstream of the mixing intersection, with possibility of shortening of its service life. © 2023, Institute of Technology PETRONAS Sdn Bhd. 2023 Article NonPeerReviewed Pao, W. and Zamri, H. (2023) Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions. Lecture Notes in Mechanical Engineering. pp. 91-106. https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140769472&doi=10.1007%2f978-981-19-1939-8_9&partnerID=40&md5=ffdcfd3cebce2c84ad5c2c2c5dc104f0 10.1007/978-981-19-1939-8₉ 10.1007/978-981-19-1939-8₉
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 MLNG-Tiga of Bintulu decided to change their aging mixing-tee configuration in one of their natural gas regenerative heat cycle piping.In the original converging T-junction, hot gas is flowed in the main pipe with cold gas intersecting midway, resulted in thermal mixing.Even though the new design still utilized the concept of converging T-junction, the hot and cold gas are routed to collide with each other before exiting as mixed gas.Since the thermal mixing efficiency is not known, the relative performance of these two mixing-Tee could not be evaluated.The present study focused on the evaluation of thermal mixing of two different T-junctions, namely an intersecting Tee and a colliding Tee, both operated within limited parameters, with the intention to understand the thermal performance.The influence of different configurations of inlets and outlet was investigated numerically using the standard K-ε turbulence model with Liquified Natural Gas (LNG) as the working fluid.Literature survey revealed that a lot of research on T-junction has been conducted on geometric factors such as diameter ratios and different fluid properties, surprisingly, a comparative study on the effects of different flow configuration is yet to be found.The present research showed that due to different impact configurations, the colliding tee offered better thermal mixing compared to the intersecting tee, resulting in higher level of turbulent.Consequently, colliding tee will experience higher temperature fluctuation at 0.25D downstream of the mixing intersection, with possibility of shortening of its service life. © 2023, Institute of Technology PETRONAS Sdn Bhd.
format Article
author Pao, W.
Zamri, H.
spellingShingle Pao, W.
Zamri, H.
Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions
author_facet Pao, W.
Zamri, H.
author_sort Pao, W.
title Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions
title_short Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions
title_full Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions
title_fullStr Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions
title_full_unstemmed Preliminary Numerical Evaluation of Temperature Fluctuation in Two Different Converging Mixing-Tee Junctions
title_sort preliminary numerical evaluation of temperature fluctuation in two different converging mixing-tee junctions
publishDate 2023
url http://scholars.utp.edu.my/id/eprint/34197/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140769472&doi=10.1007%2f978-981-19-1939-8_9&partnerID=40&md5=ffdcfd3cebce2c84ad5c2c2c5dc104f0
_version_ 1754532140543901696
score 13.211869

Similar Items