Performance analysis of a waste heat recovery solar chimney for nocturnal use

Pandey, Mukundjee; Padhi, Biranchi Narayana; Mishra, Ipsita

doi:10.1016/j.jestch.2020.11.009

Cited by 13 publications

(4 citation statements)

References 22 publications

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“…The great advantage of polymer films is the ability to cover monolithic structures of various shapes, shapes and orientations. Horizontal and inclined structuresroads, irrigation channels, airfield surfaces, industrial facilities sites-are directly covered with a film [6].…”

Section: Methodsmentioning

confidence: 99%

Prospects for the use of solar energy to accelerate the hardening of concrete in the construction of monolithic structures in Russia

et al. 2021

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This article addresses the issue of solving the problem of using the solar energy, that allows decreasing of the unit costs, or even avoiding using of the traditional energy resources for performance of the concrete in the southern regions of Russian. Researches that were carried out allow developing more contemporary methods of monolithic construction’s concrete curing. Various types of methods of solar energy using in case to produce precast concrete or reinforced concrete items found vast distribution and implementation in construction industry.

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Section: Methodsmentioning

confidence: 99%

Prospects for the use of solar energy to accelerate the hardening of concrete in the construction of monolithic structures in Russia

et al. 2021

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“…Thus, the desired efficiency increase was achieved with the further increase in fluid air velocity. 17 Pandey et al (2021), In this study, a recovery heat exchanger system was designed to utilize the waste heat. The usability of this designed system was examined by CFD analysis, and it was reported that an efficiency increase of 5% was achieved compared to solar chimneys operating under normal day conditions.…”

Section: Introductionmentioning

confidence: 99%

“…The usability of this designed system was examined by CFD analysis, and it was reported that an efficiency increase of 5% was achieved compared to solar chimneys operating under normal day conditions. 18 Noorollahi et al ( 2023), in their study, modeled the geothermal-solar chimney power plant (GSCPP) performance using the computational fluid dynamics (CFD) approach. Thus, the efficiency of the integrated system increased by around 17% compared to the first model, while the power generation capacity increased from 263.9 MWh to 319.5 MWh.…”

Section: Introductionmentioning

confidence: 99%

A genetic programming approach for the prediction of solar chimney power plant power

Kallioğlu,

Avcı,

Yılmaz

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part A:

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This study empirically examines the effectiveness of the solar chimney power plants (SCPP), which is an innovative method for the use of solar energy, in the middle latitude region (37.88° N) in the northern hemisphere. Experimental measurement parameters of temperature, velocity, and radiation obtained from four cardinal directions (north, south, east, and west) and from 26 different locations were recorded throughout the day (08:00 am-07:30 pm). These measurements were used to calculate and estimate the power values used to measure the energy efficiency of the solar chimney. In the study, the genetic programming method was used to estimate the power value. In the five different forecast models developed, 15 different parameters were used diagonally. The obtained power estimation equations were cross-checked using statistical methods. Determination coefficient value is higher than >0.90 in all equations and is close to the ideal. In the comparison of all statistical models, the Global Performance Indicator (GPI) was used, with the best result obtained from Model 2. The results of this model are MAPE:6.5233, MBE: −0.0124, RMSE:1.1036 ve t-stat:0.0374, which is quite close to zero. In addition, the power values obtained from both the calculated and developed models were dimensioned and compared over the power-time factor of eight different studies in the literature. The mean relative error value nof the values calculated as a result of this comparison varies between 2.3% and 21.3%. This study provides a model for the different geometries of solar chimney prototypes and provides an example for measuring the design and performance of solar chimney systems to be installed in the middle latitudes and in regions with “Csa” climate characteristics, and is recommended for academic and industrial users. The mathematical models developed can be considered as a step to increase the efficiency of the solar chimney power plants.

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“…Many published works focus on studying or improving the canopy, the ground, or both at once. These works can be divided into notable themes, which include analysis of the heat transfers and losses in and around the collector (Pastohr, Kornadt, & Gürlebeck 2004;Larbi, Bouhdjar, & Chergui 2010;Sangi, Amidpour, & Hosseinizadeh 2011;Duffie & Beckman 2013;Ming et al 2013;Niroomand & Amidpour 2013;Pretorius 2004;), enhancement of the ground thermal storage mediums to extend the operability of the plant, and geometry optimization of the transparent collector canopy (Fasel et al 2013;Ismaeel et al 2016;Méndez & Bicer 2021;Pandey, Padhi, & Mishra 2021).…”

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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Performance analysis of a waste heat recovery solar chimney for nocturnal use

Cited by 13 publications

References 22 publications

Prospects for the use of solar energy to accelerate the hardening of concrete in the construction of monolithic structures in Russia

Prospects for the use of solar energy to accelerate the hardening of concrete in the construction of monolithic structures in Russia

A genetic programming approach for the prediction of solar chimney power plant power

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

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