Investigation of thermal concentration effect in a modified solar chimney

Khidhir, Dara Khalid; Atrooshi, Soorkeu A.

doi:10.1016/j.solener.2020.06.011

Cited by 17 publications

(3 citation statements)

References 25 publications

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“…The data found from Computational fluid dynamics are compared from the ridiculously simplistic THBM established. 2020 (Khidhir & Atrooshi) [4] The impact of concentrated solar density was applied to an altered solar air heater layout in this study. The exploratory rig's rather unusual configuration was designed to test a number of factors, which include design features, reduced size, and implementation in areas with limited natural land inclination.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimization of Heat Transfer Rate of Thermal Chimney by Variation in Geometry

Dehariya¹,

Chatruvedi²

2022

IJOSCIENCE

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A solar chimney is a type of thermal ventilation system that is powered by the sun. It is a strategy for enhancing natural ventilation and also supplying heating and cooling inside a constructing by leveraging energy from the sun to enhance natural stack effect ventilation throughout a building. It can also be used to generate renewable energy. This paper describes the designing of thermal chimney and effect of temperature, velocity and pressure in the three different scenarios

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Section: Literature Reviewmentioning

confidence: 99%

Optimization of Heat Transfer Rate of Thermal Chimney by Variation in Geometry

Dehariya¹,

Chatruvedi²

2022

IJOSCIENCE

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“…To increase the attractiveness of the SCPP technology for commercial use, increasing the system efficiency has been the end goal in all ongoing research. Research has shown that largescale SCPP systems are needed to produce a desirable output (Mullett 2011;Khidhir & Atrooshi 2020). Apart from the overall scale, the design of each component in the system is an important aspect to be optimized.…”

Section: Introductionmentioning

confidence: 99%

Critical interpretation and analysis to correlate the canopy height to collector diameter ratio for optimized design of solar chimney power plants

Abdul Jamil,

Al-Kayiem,

Al-Azawiey

et al. 2023

Int. J. Renew. Energy Dev.

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The collector's periphery height determines the entrance size to the solar chimney power plant. There is inconsistency in the published experimental and numerical results on the optimum collector inlet height for different collector diameters. This paper aims to analyze the available data to identify the best collector inlet height-to-diameter ratio and to introduce a design guide for an optimized performance of solar chimney power plants. The experimental data reported in previous works have been clustered and manipulated to produce a comparative argument on the collector inlet height-to-diameter. In addition, a numerical model is developed to support the literature conclusions and to produce further data to decide the optimum collector inlet height-to-diameter ratio. For a 6.6-m collector diameter, four different inlets have been investigated, namely, 0.05, 0.1, 0.15, and 0.2 m. The best performance in terms of air velocity and temperature rise is obtained with the 0.05-m inlet height, where it shows an improvement of up to 35.35% compared to the larger inlet heights. The lower collector inlet height allows a more effective heat transfer from the ground and the collector to the air. It is concluded that the optimum collector inlet height-to-diameter design ratio for solar chimneys with collector diameters larger than 3 m is 0.0075±0.0005. For small-scale solar chimney models with less than 3 m collector diameter, the best collector inlet height-to-diameter ratio ranges between 0.015 and 0.03.

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“…Khidhir considered the airflow inside the collector as an extended radial flow between the two parallel disks in order to obtain the heat transfer coefficient of the solar chimney collector. In this study, the required analytical equations were presented to estimate the coefficients of heat transfer and pressure drop obtained from friction [13]. Galia studied the performance of the turbine used in the solar chimney power plant [14].…”

Section: Introductionmentioning

confidence: 99%

Modeling the Thermal Performance for Different Types of Solar Chimney Power Plants

2022

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Nowadays, due to restrictions on fossil fuels, the use of renewable energies is increasing day by day. Among renewable energies, solar energy has received more attraction due to its availability in all places. Among solar energy technologies, the solar tower has been welcomed due to its high power generation of electrical energy. For accurate modeling of the studied system, each component of the system has been evaluated and modeling has been done. Therefore, in this research, solar tower modeling has been conducted to achieve high electrical energy production, and to better compare the production rate, 5 cities in Iran with different weather conditions have been considered. According to the results, it can be mentioned that the highest production power by the studied system is related to Shiraz city with an average production of 20 kW/m2, and among the cities studied, the lowest rate is related to Mashhad with a production power of 15 kW/m2.

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Investigation of thermal concentration effect in a modified solar chimney

Cited by 17 publications

References 25 publications

Optimization of Heat Transfer Rate of Thermal Chimney by Variation in Geometry

Optimization of Heat Transfer Rate of Thermal Chimney by Variation in Geometry

Critical interpretation and analysis to correlate the canopy height to collector diameter ratio for optimized design of solar chimney power plants

Modeling the Thermal Performance for Different Types of Solar Chimney Power Plants

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