Thermal pollution zones on the aquatic environment from the coastal power plant: Numerical study

Issakhov, Alibek; Zhandaulet, Yeldos

doi:10.1016/j.csite.2021.100901

Cited by 10 publications

(3 citation statements)

References 49 publications

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“…Numerical models are one of the approaches used to solve this problem. Reference [8] investigated thermal contamination from a power plant utilizing the Irtysh River for cooling. A 2D numerical model was employed to simulate heated water discharge characteristics, demonstrating good alignment with the measured results.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Water Quality Monitoring: Using Satellite Images for Temporal and Spatial Monitoring of Thermal Pollution in Water Resources

Naimaee,

Kiani,

Jarahizadeh

et al. 2024

Sustainability

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Thermal pollution reduces water quality through any process that leads to a change in the water’s ambient temperature. Karun is one of the most relevant sources of water supply in Iran, and its pollution, created by industrial, urban, and agricultural issues, has been one of the most critical challenges throughout the last few years. As the water temperature rises, the amount of dissolved oxygen in it decreases, thereby affecting the entire ecosystem associated with it. Drainage of urban and industrial runoff into surface water sources can increase the water temperature. Dams also constitute a significant part, modifying spatial patterns of temperature along river routes and causing thermal contamination. In this paper, the thermal pollution of the Karun River was assessed, and regions along this river with unusually raised water temperatures were identified and compared over 20 years. By analyzing the results, it can be found that the thermal pollution from dams has a significant impact on the downstream river environment and ecology that is considerably relevant during summer periods, showing average decreases of 3 degrees Celsius immediately beyond the dams’ locations (from 41 degrees Celsius upstream dams to 38 degrees Celsius beyond them) or even bigger (reductions of 13 degrees Celsius in one of the studied dams). Hence, our results showed that water temperature is colder downstream in the hot seasons of the year than upstream of the dams. The results suggest that the usage of remote sensing data effectively could complement collected data from ground-based sensors to estimate water temperature and to identify pollution areas. It provides experts with spatially extensive and highly synchronized data.

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Section: Introductionmentioning

confidence: 99%

Long-Term Water Quality Monitoring: Using Satellite Images for Temporal and Spatial Monitoring of Thermal Pollution in Water Resources

Naimaee,

Kiani,

Jarahizadeh

et al. 2024

Sustainability

View full text Add to dashboard Cite

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“…Prior research that explored heat diffusion patterns mainly focused on power plants and examined the temperature and flow fields of warm water drainage. Most of these studies used numerical simulation techniques to analyze the water temperature shifts caused by power plants' inlet and outlet waters [22][23][24]. Nevertheless, the impact of WSHP tail drainage on the water environment has not been sufficiently examined.…”

Section: Introductionmentioning

confidence: 99%

Temperature Drainage and Environmental Impact of Water Source Heat Pump Energy Station

Ren,

Yang,

Zhang

et al. 2024

Water

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The discharge of warm water from water source heat pump (WSHP) energy stations can cause local changes in the water temperature, leading to changes in the water quality around and downstream of the discharge outlet, resulting in a cumulative effect that alters the aquatic habitat elements and affects the ecosystem stability. This study took the demonstration project of the water source heat pump energy station in the Hankou Binjiang International Business District of Wuhan City as an example. Based on measured data, this study established the control equation for the warm water discharge of the project and used FLUENT 2022 R1 software to establish a numerical model of warm water diffusion. This study analyzed the changes in discharge water temperature during unfavorable conditions in both summer and winter during dry and wet seasons by using four parameters: equal area surface, volume, length, and width of the area of influence. The results suggest that the impact of the project’s warm water discharge on the temperature of the river body will quickly decay and its impact range will be limited. Hence, the project will not have adverse effects on the water and ecological environment in the mid–lower reaches of the Yangtze River.

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“…NNT, 1997). Namun demikian, selama proses ini dapat menyebabkan air ini menjadi lebih hangat dari air yang awalnya dialirkan ke pembangkit listrik (Issakhov & Zhandaulet, 2021). Terlebih lagi jika terjadi adanya kerusakan pada pipa pembuangan.…”

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Simulasi Pemodelan Sebaran Suhu Akibat Limbah Air Panas Power Plant PT. Amman Mineral Nusa Tenggara di Teluk Benete, Sumbawa Barat

Sukmawanty

Kunarso

Maslukah

et al. 2022

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Power Plant PT. Amman Mineral Nusa Tenggara is a thermal power station (PLTU) that supplies electricity located in West Sumbawa Regency. The power plant utilizes seawater from Benete Bay as cooling water for the condenser, which produces hot water waste (heat) that released back into the water. The hot water waste that generated must pass the cooling stage so the temperature of the hot water waste can close to the normal temperature of the water. The objective of this research is to determine the temperature distribution due to hot water waste released by the power plant and predict the temperature distribution in the event of a cooling system failure. To carry out the study used several data include temperature, currents, bathymetry, tides, and the discharge of heat water. The research method used is advection-dispersion hydrodynamic modeling by Delft3D software. The results of hydrodynamic modelling showed that the distribution of hot water waste in normal conditions and in the cooling system where there is a damage, are leading to the east and west according to the direction of tidal current. Result of measurement to the water around the outlet shows the average temperature in the water coloumn is 28,5oC. The temperature increase due to hot water waste reaches 2,5oC in normal conditions, and 3,5oC in conditions if there is damage to the cooling system. In normal conditions, the dispersion area of hot water waste is 25,39 Ha during spring tide, and 9,31 Ha during neap tide. In the damaged condition of cooling system, the dispersion area during spring tide is 41,95 Ha and 35,61 Ha during neap tide.Keywords: Distribution, Waste Heat, Temperature, Delft3DABSTRAKPower Plant PT. Amman Mineral Nusa Tenggara yang terletak di Kabupaten Sumbawa Barat merupakan PLTU yang mensuplai kebutuhan listrik untuk operasional perusahaan. Power plant memanfaatkan air laut dari Teluk Benete sebagai media pendingin untuk kondensor yang hasil akhirnya berupa limbah air panas (bahang) yang dikeluarkan kembali ke perairan. Limbah air panas yang akan dikeluarkan harus melewati tahap pendinginan sehingga suhu limbah air panas dapat mendekati suhu normal perairan. Penelitian ini bertujuan untuk mengetahui sebaran suhu akibat limbah air panas yang dikeluarkan oleh power plant dan memprediksi sebaran suhu apabila terjadi kerusakan sistem pendingin. Data primer yang digunakan dalam penelitian ini adalah data temperatur dan arus laut. Sedangkan data sekunder yang digunakan adalah data batimetri, pasang surut, dan debit limbah air bahang. Metode yang digunakan dalam penelitian ini adalah pemodelan hidrodinamika adveksi-dispersi dengan software Delft3D. Hasil penelitian menunjukkan sebaran limbah air panas pada kondisi normal maupun apabila terjadi kerusakan sistem pendingin mengarah ke arah timur dan barat, sesuai dengan arah pergerakan arus. Kenaikan suhu akibat limbah air bahang mencapai 2,5oC pada kondisi normal, dan 3,5oC pada kondisi apabila terjadi kerusakan sistem pendingin dari suhu rata- rata perairan sebesar 28,5 oC. Pada kondisi normal, luas sebaran pada saat pasang purnama sebesar 25,39 Ha dan pada saat pasang perbani sebesar 9,31 Ha, sedangkan pada kondisi apabila terjadi kerusakan sistem pendingin luas sebaran limbah saat pasang purnama sebesar 41,95 Ha dan ketika pasang perbani sebesar 35,61 Ha.Kata Kunci: Sebaran, Limbah Air Panas, Temperatur, Delft3D

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Thermal pollution zones on the aquatic environment from the coastal power plant: Numerical study

Cited by 10 publications

References 49 publications

Long-Term Water Quality Monitoring: Using Satellite Images for Temporal and Spatial Monitoring of Thermal Pollution in Water Resources

Long-Term Water Quality Monitoring: Using Satellite Images for Temporal and Spatial Monitoring of Thermal Pollution in Water Resources

Temperature Drainage and Environmental Impact of Water Source Heat Pump Energy Station

Simulasi Pemodelan Sebaran Suhu Akibat Limbah Air Panas Power Plant PT. Amman Mineral Nusa Tenggara di Teluk Benete, Sumbawa Barat

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