A Numerical Investigation of the Plunging Phenomenon of Cold Water Discharged from Ocean Thermal Energy Conversion Systems

The main role of cold water discharged from ocean thermal energy conversion (OTEC) systems is that deep ocean water, which is dense and nutrient-rich, is released through the condenser and discharged into the ocean surface. We present a numerical simulation in which a cold-water is discharged into a...

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Main Authors: Dan Hua, Takeshi Yasunaga, Yasuyuki Ikegami
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/8/3/155
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author Dan Hua
Takeshi Yasunaga
Yasuyuki Ikegami
author_facet Dan Hua
Takeshi Yasunaga
Yasuyuki Ikegami
author_sort Dan Hua
collection DOAJ
description The main role of cold water discharged from ocean thermal energy conversion (OTEC) systems is that deep ocean water, which is dense and nutrient-rich, is released through the condenser and discharged into the ocean surface. We present a numerical simulation in which a cold-water is discharged into a temperature-stratified fluid. A semi-empirical formula relating the outlet flow and the plunging depth was obtained by model analysis, and the k multiplier was 1.15. The model results are consistent with the experimental data.
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spelling doaj.art-db46069e6257407888e2c3b8a95b168b2022-12-21T19:37:52ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-02-018315510.3390/jmse8030155jmse8030155A Numerical Investigation of the Plunging Phenomenon of Cold Water Discharged from Ocean Thermal Energy Conversion SystemsDan Hua0Takeshi Yasunaga1Yasuyuki Ikegami2Institute of Ocean Energy, Saga University, 1-Honjomachi, Saga 840-8525, JapanInstitute of Ocean Energy, Saga University, 1-Honjomachi, Saga 840-8525, JapanInstitute of Ocean Energy, Saga University, 1-Honjomachi, Saga 840-8525, JapanThe main role of cold water discharged from ocean thermal energy conversion (OTEC) systems is that deep ocean water, which is dense and nutrient-rich, is released through the condenser and discharged into the ocean surface. We present a numerical simulation in which a cold-water is discharged into a temperature-stratified fluid. A semi-empirical formula relating the outlet flow and the plunging depth was obtained by model analysis, and the k multiplier was 1.15. The model results are consistent with the experimental data.https://www.mdpi.com/2077-1312/8/3/155numerical simulationtemperature stratified fluidotec
spellingShingle Dan Hua
Takeshi Yasunaga
Yasuyuki Ikegami
A Numerical Investigation of the Plunging Phenomenon of Cold Water Discharged from Ocean Thermal Energy Conversion Systems
Journal of Marine Science and Engineering
numerical simulation
temperature stratified fluid
otec
title A Numerical Investigation of the Plunging Phenomenon of Cold Water Discharged from Ocean Thermal Energy Conversion Systems
title_full A Numerical Investigation of the Plunging Phenomenon of Cold Water Discharged from Ocean Thermal Energy Conversion Systems
title_fullStr A Numerical Investigation of the Plunging Phenomenon of Cold Water Discharged from Ocean Thermal Energy Conversion Systems
title_full_unstemmed A Numerical Investigation of the Plunging Phenomenon of Cold Water Discharged from Ocean Thermal Energy Conversion Systems
title_short A Numerical Investigation of the Plunging Phenomenon of Cold Water Discharged from Ocean Thermal Energy Conversion Systems
title_sort numerical investigation of the plunging phenomenon of cold water discharged from ocean thermal energy conversion systems
topic numerical simulation
temperature stratified fluid
otec
url https://www.mdpi.com/2077-1312/8/3/155
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