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ID 16599
file
title alternative
The influence of water heat energy use on stream temperature in urban rivers under tidal variation
creator
Kinouchi, Tsuyoshi
Suetsugi, Tadashi
Kobayashi, Hiroaki
subject
Stream temperature
tidal variation
urban river
heat energy
district heating and coolirzg system
field measurement
one-dimensional modeling
NDC
Construction. Civil engineering
abstract
To predict the water temperature in lower reaches of urban rivers, field measurements and model development were performed for simultaneous transport of water and heat in a stream. Detailed information on river flow and heat transport under tidal motion was obtained through an intensive measurement in the lower reach of the Ara River. Based on the knowledge of time variations and cross-sectional profiles of the flow and the stream temperature, a one-dimensional dynamic model is developed to predict flow and water temperature in tidally affected urban streams. The model takes into account of tidal motion, longitudinal dispersion, water exchange with tributaries, wastewater effluent and the heat exchange between the atmosphere and the stream water. Using the calibrated model, effects of heated water discharge on the stream temperatures due to the district heating and cooling system were estimated for a possible scenario in which the river thermal energy is used through the water heat pump technology.
journal title
水工学論文集
volume
Volume 44
start page
1017
end page
1022
date of issued
2000-02
publisher
土木学会
issn
0916-7374
ncid
language
jpn
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Engineering