Proximate analysis of Lakhra coal power plant and its health and environmental impact

Jatoi, Wahid Bux; Khokhar, Cyril Maqsood; Dewani, Vinod Kumar; Khaskheli, Mazhar Iqbal; Shar, Ghulam Qadir; Jakhrani, Mushtaque Ali; Sirohi, Muzafar Hussain; Memon, Irum Naz; Jatoi, Ashique Hussain

doi:10.1080/15567036.2019.1695980

Cited by 1 publication

(1 citation statement)

References 15 publications

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“…The flame temperature of Coal C is evenly distributed at the centre of the furnace with shorter flame length as compared to Coal A and B. Even though the calorific value of Coal C is higher than Coal B, the predicted temperature for Coal C is lower than the Coal B. Theoretically, coals with higher fixed carbon and calorific value might result in higher temperature during the combustion process [17]. However, other parameter such as fuel ratio could also play significant role in the combustion behaviour [18].…”

Section: Flame Temperature Velocity O2 and Co Mass Fractionmentioning

confidence: 92%

CFD Analysis on the Effects of Different Coal on Combustion Characteristics in Coal-fired Boiler

Noor

Hasini

Samsuri

et al. 2020

CFDL

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Coal quality is essential for the optimum functioning of coal-fired power plants. One of the issues associated with coal quality deterioration is poor combustion behaviour which could result in ash deposition and environmental issues. This paper presents a CFD investigation of flow and combustion process in a full-scale furnace. Three different sub-bituminous coals with different properties were tested namely Coal A, B and C. The aim is to predict the combustion performance of these coals by observing its flow, temperature and species concentration inside the furnace. The exact boiler furnace geometry obtained from boiler operator was translated into CFD model with very little modification made for optimizing mesh. Grid dependency test carried out prior to the work shows the current mesh scheme is sufficient to accurately resolve the flow field. The results of the study show that combustion temperature for Coal B is the highest at approximately 1400°C. Coal C is predicted to give the highest velocity peak at certain regions of the furnace and interestingly enough, the same coal shows the shortest flame length and thus requiring additional flow to achieve the same penetration compared to other coals. Tracing of oxygen concentration inside the furnace show minimum oxygen left in the rear pass given by Coal A, indicating optimum combustion.

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Section: Flame Temperature Velocity O2 and Co Mass Fractionmentioning

confidence: 92%