Analysis of a solar chimney power plant in the Arabian Gulf region

Hamdan, Mohammad O.

doi:10.1016/j.renene.2010.05.002

Cited by 107 publications

(28 citation statements)

References 16 publications

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“…A schematic diagram (Hamdan, 2010) of the solar chimney power plant is presented in Figure 3. A simplified model describes the power plant including the three major components; the solar collector, the chimney and wind turbine.…”

Section: South African Journal Of Geology 48mentioning

confidence: 99%

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Development and performance investigation of a novel solar chimney power generation system

Beneke

Fourie

Huan

2016

South African Journal of Geology

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South Africa generates 77% of its electricity in coal-fired power stations, with the remaining 23% from the smaller hydropower and Koeberg nuclear stations (Eskom, 2010). Secure electricity supply continues to be a significant factor in the economic Development and performance investigation of a novel solar chimney power generation system Abstract South Africa has limited reserve electricity resources and many parts of the country have limited access to electricity. Predictions suggest South Africa will have a serious electricity allocation problem in the very near future, and current rolling blackouts in many of our cities can attest to the looming problem. The energy crisis in South Africa has highlighted the need to increase electricity generation capacity and to search for alternative energy sources.Solar chimney plants could form part of the solution in the near future in South Africa to create additional power. Solar radiation energy is abundant in South Africa, while wind sources are limited mainly to coastal regions. Presently, wind turbine technology is more efficient than solar voltaic cells. This study develops a wind generation system in areas where wind is absent. A solar chimney power plant is expected to provide remote areas in South Africa with electric power, or complement the current electricity grid. Solar energy and the psychometric state of the air are important to encourage the full development of a solar chimney power plant for the thermal and electrical production of energy for various uses. A solar chimney power plant consists of a greenhouse roof collector, and the chimney is located at the centre. The chimney is used to direct and vent the low density air through a wind turbine which in turn converts the air enthalpy into mechanical energy. The main advantage of a solar chimney system lies in its low maintenance cost, the simplicity to operate and the durability of the system.Research of a design within the South African context and particularly on increasing the effectiveness of the solar chimney power plant technology is lacking. Several simulations were performed to find the optimum design configuration to focus the research. The results from the simulations were used to design the best configuration for a pilot plant.

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Section: South African Journal Of Geology 48mentioning

confidence: 99%

“…Dubos had the North African Atlas Mountains in mind. The mountain could be a large heat source and an ascending SOUTH AFRICAN JOURNAL OF GEOLOGY 49 (Hamdan, 2010). Isidoro Cabanyes in 1903(after Cabanyes, 1903.…”

Section: Previous Workmentioning

confidence: 99%

Development and performance investigation of a novel solar chimney power generation system

Beneke

Fourie

Huan

2016

South African Journal of Geology

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“…3) Air is an ideal gas and the flow is incompressible across the chimney since Mach number is below 0.3 (Hamdan, 2011).…”

Section: Mathematical Analysismentioning

confidence: 99%

Analysis Study of Solar Tower Power Plant & Its Configuration Effects on Its Performance in Iraq (Baghdad City)

Ali¹

2013

MAS

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A solar chimney power plant model, consisting of a solar collector to produce a hot air when the incident solar radiation hit it, a solar chimney and a wind turbine with generator was investigated in this study. The mathematical model as a tool was used to study and analyze the performance of the power plant for electrical production in Baghdad city of Iraq as a result a mathematical equation was obtained for the hot air outlet temperature from the collector as a function of collector’s area and solar radiation. The Manzanares model was used in this study and the results obtained from the proposed model of solar tower, having the height 195 m, diameter of 10 m, and the solar collector diameter of 244 m were compared with the results obtained when the solar tower configuration is changed. The results indicate that the significant impact to improve the output power is by increasing the collector’s diameter from 244 m to 300 m. It is also found that output power is effectively dependent on the chimney’s height, it yields moderate increasing in power output when the height is increased from 195 m to 300 m, and the chimney’s diameter has a lower impact on solar tower output power in comparison with the other configuration of solar tower when it increases from 10 m to 20 m.

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“…As the air flows through the heat exchanger, it will absorb heat and its velocity is also the velocity input into the bottom of the chimney. Due to their specific structure, thermal chimneys have been frequently used in the power generation systems [6]. The shape of the chimney will focuses the rising heated air through its decreasing cross section, thus the air velocity will further increase until it is passed through a vertically mounted shrouded wind turbine which can convert this steady fast moving flow of air into mechanical work.…”

Section: Open Accessmentioning

confidence: 99%

Toward a Heat Recovery Chimney

Zhang¹,

Yang²,

Pan³

et al. 2011

Sustainability

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Abstract:The worldwide population increase and subsequent surge in energy demand leads electricity producers to increase supply in an attempt to generate larger profit margins. However, with Global Climate Change becoming a greater focus in engineering, it is critical for energy to be converted in as environmentally benign a way as possible. There are different sustainable methods to meet the energy demand. However, the focus of this research is in the area of Waste Heat Recovery. The waste heat stored in the exiting condenser cooling water is delivered to the air flow through a water-air cross flow heat exchanger. A converging thermal chimney structure is then applied to increase the velocity of the airflow. The accelerated air can be used to turn on the turbine-generator installed on the top the thermal chimney so that electricity can be generated. This system is effective in generating electricity from otherwise wasted heat.

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Analysis of a solar chimney power plant in the Arabian Gulf region

Cited by 107 publications

References 16 publications

Development and performance investigation of a novel solar chimney power generation system

Development and performance investigation of a novel solar chimney power generation system

Analysis Study of Solar Tower Power Plant & Its Configuration Effects on Its Performance in Iraq (Baghdad City)

Toward a Heat Recovery Chimney

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