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Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow

Thermal discharges such as from power stations or industries into rivers causing degradation of water quality. A study was conducted in the laboratory to investigate the changes of the ambient temperature caused by thermal effluent discharged into the flow. A cross–flow thermal effluent is discharge...

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Main Authors:	Ibrahim, Zulkiflee, Abdul Latiff, Abd. Aziz, Hashim, Noor Baharim, Halim, Herni, Mokhtar Kamal, Nurul Hana, Haron, Nuryazmeen Farhan
Format:	Article
Language:	English
Published:	Universiti Teknologi Malaysia 2009
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/36238/2/Experimental-Investigation-On-Behaviour-Of-Cross-Flow-Thermal-Effluent-Discharge-In-Free-Surface-Flow.pdf http://eprints.utm.my/id/eprint/36238/
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spelling	my.utm.362382017-02-15T00:31:50Z http://eprints.utm.my/id/eprint/36238/ Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow Ibrahim, Zulkiflee Abdul Latiff, Abd. Aziz Hashim, Noor Baharim Halim, Herni Mokhtar Kamal, Nurul Hana Haron, Nuryazmeen Farhan TA Engineering (General). Civil engineering (General) Thermal discharges such as from power stations or industries into rivers causing degradation of water quality. A study was conducted in the laboratory to investigate the changes of the ambient temperature caused by thermal effluent discharged into the flow. A cross–flow thermal effluent is discharged from the bed of the channel. Thermal effluent flow rates of 0.133 liter/s and 0.05 liter/s and ambient flow rates of 20 liter/s and 10 liter/s were used in the study. Observation of thermal mixing process in the channel is concentrated in the near-field zone. The thermal dispersion patterns were observed along the channel through the isothermal lines; while the changes of ambient temperature are studied from the experimental data. The results indicate that the temperature changes are drastic in the near-field mixing zone. Then it gradually reduces along the channel until reaches the far-field mixing zone. Lower layer of the flow experiences high excess temperature compared to middle and upper layers of the flow. Meanwhile, larger effluent flow rate produces higher excess temperature in the receiving water body than small effluent flow rate. Based on experimental data, equations of excess temperature and dispersion were established Universiti Teknologi Malaysia 2009 Article PeerReviewed text/html en http://eprints.utm.my/id/eprint/36238/2/Experimental-Investigation-On-Behaviour-Of-Cross-Flow-Thermal-Effluent-Discharge-In-Free-Surface-Flow.pdf Ibrahim, Zulkiflee and Abdul Latiff, Abd. Aziz and Hashim, Noor Baharim and Halim, Herni and Mokhtar Kamal, Nurul Hana and Haron, Nuryazmeen Farhan (2009) Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow. Malaysian Journal of Civil Engineering, 21 (1). pp. 82-97. ISSN 1823-7843
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Ibrahim, Zulkiflee Abdul Latiff, Abd. Aziz Hashim, Noor Baharim Halim, Herni Mokhtar Kamal, Nurul Hana Haron, Nuryazmeen Farhan Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow
description	Thermal discharges such as from power stations or industries into rivers causing degradation of water quality. A study was conducted in the laboratory to investigate the changes of the ambient temperature caused by thermal effluent discharged into the flow. A cross–flow thermal effluent is discharged from the bed of the channel. Thermal effluent flow rates of 0.133 liter/s and 0.05 liter/s and ambient flow rates of 20 liter/s and 10 liter/s were used in the study. Observation of thermal mixing process in the channel is concentrated in the near-field zone. The thermal dispersion patterns were observed along the channel through the isothermal lines; while the changes of ambient temperature are studied from the experimental data. The results indicate that the temperature changes are drastic in the near-field mixing zone. Then it gradually reduces along the channel until reaches the far-field mixing zone. Lower layer of the flow experiences high excess temperature compared to middle and upper layers of the flow. Meanwhile, larger effluent flow rate produces higher excess temperature in the receiving water body than small effluent flow rate. Based on experimental data, equations of excess temperature and dispersion were established
format	Article
author	Ibrahim, Zulkiflee Abdul Latiff, Abd. Aziz Hashim, Noor Baharim Halim, Herni Mokhtar Kamal, Nurul Hana Haron, Nuryazmeen Farhan
author_facet	Ibrahim, Zulkiflee Abdul Latiff, Abd. Aziz Hashim, Noor Baharim Halim, Herni Mokhtar Kamal, Nurul Hana Haron, Nuryazmeen Farhan
author_sort	Ibrahim, Zulkiflee
title	Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow
title_short	Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow
title_full	Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow
title_fullStr	Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow
title_full_unstemmed	Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow
title_sort	experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow
publisher	Universiti Teknologi Malaysia
publishDate	2009
url	http://eprints.utm.my/id/eprint/36238/2/Experimental-Investigation-On-Behaviour-Of-Cross-Flow-Thermal-Effluent-Discharge-In-Free-Surface-Flow.pdf http://eprints.utm.my/id/eprint/36238/
_version_	1643649933357613056
score	13.211869

Experimental investigation on behaviour of cross-flow thermal effluent discharge in free surface flow

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