Mathematical modeling of passive dry cooling for power plants in arid land

Olwi, Ibrahim; Sabbagh, J. A.; Khalifa, A.M.A.

doi:10.1016/0038-092x(92)90055-f

Cited by 12 publications

(3 citation statements)

References 11 publications

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“…A CSP plant operating at a maximum temperature of 80-100 • C, can experience the efficiency gain of 50-100% with a condenser using night sky cooling [128]. Olwi et al [129] proposed the concept of a pond covered by a radiator plate which can be used to cool the hot water coming from a power plant condenser. Figure 8 shows a schematic for such a system [129].…”

Section: Principlementioning

confidence: 99%

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A Review of Underground Soil and Night Sky as Passive Heat Sink: Design Configurations and Models

Vidhi

2018

Energies

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Energy consumption for heating and cooling constitute the majority of the energy use for building loads. Using passive cooling systems to reduce the energy consumption or to make the process more efficient can be very beneficial. Ground coupled heat exchangers and night sky radiative cooling systems have been used for centuries to achieve cooling and ice making. Ground coupled heat exchangers use the temperature difference between underground soil and ambient air or water for heat transfer between the soil and the fluid passing through buried pipes. Night sky radiative cooling takes advantage of the night sky as the coldest heat sink available for heat transfer with any surface. Use of these simple designs with the modern cooling/heating systems has the potential for a major impact on the heating and cooling needs. This review paper describes the various designs, configurations and applications of these systems as well as determining the parameters that impact their performance.

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Section: Principlementioning

confidence: 99%

“…Olwi et al [129] proposed the concept of a pond covered by a radiator plate which can be used to cool the hot water coming from a power plant condenser. Figure 8 shows a schematic for such a system [129]. The hot water coming from a power plant condenser enters the pond close to its surface.…”

Section: Principlementioning

confidence: 99%

A Review of Underground Soil and Night Sky as Passive Heat Sink: Design Configurations and Models

Vidhi

2018

Energies

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“…An average radiative heat flux of 50 W/m 2 was measured for their experimental setup during the night. Finding an efficient dry cooling method is significant for solar thermal power plants [8].…”

Section: Introductionmentioning

confidence: 99%

Estimation of the Radiative Sky Cooling Potential through Meteorological Data: A Case Study in Tropical Climate

2021

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In search of thermal comfort, over the years, various techniques have been developed to adapt to the conditions of the enclosures, depending on the region and the activity carried out. Thus, this project seeks to evaluate the radiative sky cooling potential for various areas of Panama. This evaluation will be carried out by developing a simplified mathematical model based on meteorological data. An uncertainty-sensibility analysis of the model was also carried out to highlight the critical parameters. Radiative sky cooling systems have been shown to be susceptible to cloudiness and humidity. With a tropical climate, Panama is critical to consider these two variables when developing the simplified mathematical model. Another aspect to consider when estimating the cooling potential will be the hours of the day when there is no solar radiation.

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Advanced passive daytime radiative cooling: from material selection and structural design to application towards multifunctional integration

Li,

Zhang,

Liu

et al. 2024

Adv Compos Hybrid Mater

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Mathematical modeling of passive dry cooling for power plants in arid land

Cited by 12 publications

References 11 publications

A Review of Underground Soil and Night Sky as Passive Heat Sink: Design Configurations and Models

A Review of Underground Soil and Night Sky as Passive Heat Sink: Design Configurations and Models

Estimation of the Radiative Sky Cooling Potential through Meteorological Data: A Case Study in Tropical Climate

Advanced passive daytime radiative cooling: from material selection and structural design to application towards multifunctional integration

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