Historic and recent progress in solar chimney power plant enhancing technologies

Al-Kayiem, Hussain H.; Aja, Ogboo Chikere

doi:10.1016/j.rser.2015.12.331

Cited by 97 publications

(31 citation statements)

References 81 publications

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“…On the other hand, it is the fact that the overall energy conversion efficiency of the STWT plant is so low that the plant has to demand a very wide space for producing a sufficient amount of energy [1][2][3][4][5]. The size of the plant for large scale STWT power generation system (height of the tower and the diameter of the collector) becomes really considerable; the capital cost of the power plant cannot be underestimated, and an investment for this technology might be risky for investors.…”

Section: Introductionmentioning

confidence: 99%

A Feasibility Study on Power Generation from Solar Thermal Wind Tower: Inclusive Impact Assessment Concerning Environmental and Economic Costs

Elsayed

Nishi

2018

Energies

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A solar thermal wind tower (STWT) is a low-temperature power generation plant that mimics the wind cycle in nature, comprising a flat plate solar air collector and central updraft tower to produce thermal wind that drives turbines to generate electricity. The development of power generation systems toward a sustainable future needs to be made taking into account the balance between environmental impact and economic feasibility. We examine the sustainability of STWT power generation technology using the inclusive impact index light (Triple I-light), which estimates whether it is good to do the project, including both the negative environmental impact and the economic aspect. Environmental disadvantages are discussed by performing a CO2 inventory analysis for the life-cycle of the STWT power plant. Evaluation of the economic feasibility is done by calculating the levelized electricity cost (LEC), which is the cost per unit of electricity generated. From the calculations, it is found that overall system efficiency is increased by enlarging the capacity, the negative environmental impact by the STWT plant comes mainly from manufacturing stage (more than 60%), and the levelized electricity cost is dramatically decreased by enlarging the capacity of the system (about 50% reduction). A negative value of Triple I (meaning it is sustainable) can be achieved for high power generation capacity (above 100 MW). Moreover, this paper discusses the implementation and the potential of constructing offshore STWTs.

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Section: Introductionmentioning

confidence: 99%

A Feasibility Study on Power Generation from Solar Thermal Wind Tower: Inclusive Impact Assessment Concerning Environmental and Economic Costs

Elsayed

Nishi

2018

Energies

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“…Convection in water and air is a mechanical flux. People use horizontal mechanical fluxes (winds and currents), but underuse the vertical ones [24,25,26]. Some of the future fuelless generators can float in water and air to harvest the convective fluxes, see Figure 5.…”

Section: Underused Flux Powermentioning

confidence: 99%

“…The cost of an additional energy might be reasonable, if one augments a solar PV field by wind generators; one can also consider thermal [8,9,10,23], convective [25,26,28], and other types of additional generators. Figure 5 shows a model of a floating fuelless electric complex, which generates electricity from sunlight [29,30], wind [24], water current [31], waves [7,32], convection in the air [26] and water, temperature differences [8,9], and probably even the salinity difference between the rain fresh water and ocean salt water (see Figure 4). As a cherry on a pie, one can add a conductive loop around the perimeter, which will generate voltage from fluctuating geomagnetic field.…”

Section: Complex Use Of Environmental Energymentioning

confidence: 99%

Electricity without Fuel

Zarkevich¹

2019

jept

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Most power plants produce electricity by converting a mechanical motion into alternating current (AC). Photovoltaic solar panels convert an electromagnetic flux of light into direct current (DC). In general, electric energy can be harvested from a flux in the environment or from a change of the environment itself. One can produce electricity from mechanical, chemical, thermal, electromagnetic (light), or another physical flux, or from a change of temperature, chemical composition, or a physical field: gravitational, magnetic, electric, mechanical stress and strain, etc. Flux examples are mechanical motions of air and water, surface waves and tides, heat fluxes due to a temperature gradient, solar light, and a chemical flux (such as humidity propagation in the atmospheric air or diffusion of salt in water due to a gradient of salinity at the mouth of a fresh-water river flowing into an ocean). Environmental changes are under-used in energy production, although people are exposed to daily and seasonal changes of the environment, which include changing air temperature, pressure, humidity, and composition, tidal changes of the gravitational field, and less periodic changes of the geo-magnetic and electric fields. Production of electricity without fuel from the environmental changes and fluxes requires a durable infrastructure for a costeffective utilization of the "semi-perpetual" energy resources.

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“…Moreover, the need of electrical energy is going up by increasing technology, such as solar chimney technology is a very promising solar thermal electricity generating skill. Renewable energy can execute as necessary sources instead of huge element of fossil fuels [41][42][43][44][45][46]. The progress of solar photovoltaic is the main idea to manage the daily gained average solar energy.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study of Ground Measurement and Satellite‐Derived Data of Global and Diffuse Radiation

Mahima

Karakoti

Pathak

et al. 2018

Env Prog and Sustain Energy

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The comparative study of measured and calculated data of India Meteorological Department (IMD) and National Aeronautics and Space Administration (NASA) for 23 locations of India for 15 years (1986–2000) is presented. Global and diffuse radiation data are used in the study and to make the study comprehensive, three statistical predictors, viz., mean percentage error (MPE), root mean square error (RMSE), and mean bias error (MBE) are used for the comparison. The results show that for global radiation, MPE is maximum of −36.65% for Shillong and minimum of 0.93% for New Delhi. MBE is found to be maximum of 1.63 kWh/m2 for Shillong while it is minimum (0.04 kWh/m2) for Nagpur. RMSE is maximum (2.14 kWh/m2) for Shillong and minimum for Ranchi (0.19 kWh/m2). For diffuse radiation, MPE is highest for Bhavnagar (100%) and lowest for Hyderabad (81.33%). MBE is maximum of −7.73 kWh/m2 and minimum of −4.62 kWh/m2 for Srinagar. RMSE is maximum for Bhavnagar (8.26 kWh/m2) and minimum for Srinagar (4.73 kWh/m2). © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13060, 2019

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Historic and recent progress in solar chimney power plant enhancing technologies

Cited by 97 publications

References 81 publications

A Feasibility Study on Power Generation from Solar Thermal Wind Tower: Inclusive Impact Assessment Concerning Environmental and Economic Costs

A Feasibility Study on Power Generation from Solar Thermal Wind Tower: Inclusive Impact Assessment Concerning Environmental and Economic Costs

Electricity without Fuel

A Comprehensive Study of Ground Measurement and Satellite‐Derived Data of Global and Diffuse Radiation

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