A comprehensive analysis and optimization of coal-biomass mixed fuel for sustainable power generation

Author:

Datta Arghya1,Gajera Bhautik1,Saikia Manmit2,Patra Tapas1,Sarma Anil Kumar1

Affiliation:

1. Sardar Swaran Singh National Institute of Bioenergy

2. North-Eastern Hill University

Abstract

Abstract

Forest biomass in India remains grossly underutilized for bioenergy due to infrastructure, technological limitations, and competing land uses. Meghalaya, a state rich in forest cover, faces a similar issue. Additionally, with low-quality coal reserves available in Meghalaya, co-combustion with abundant forest biomass in thermal plants presents a practical solution for achieving energy independence in the state. A feasibility study explored the co-combustion of Meghalayan coal with pinewood charcoal, pine cone, and pine needle to increase calorific value while minimizing ash, sulphur, and chloride content. A multi-objective genetic algorithm utilising an artificial neural network and a response surface methodology model was developed to identify optimal mixture compositions corresponding to specified output criteria. By maximizing pine needle and pine cone usage while minimizing pinewood charcoal, an optimal mixture comprising 50% coal, 10% pinewood charcoal, 23.49% pine cone, and 16.52% pine needle was obtained. The optimal mixture yielded a maximum calorific value of 3873.70 kcal/kg, with minimum chloride (236.39 mg/kg), ash (32.05%), and sulphur (3444.7 mg/kg) content.

Publisher

Springer Science and Business Media LLC

Reference23 articles.

1. Forest Survey of India India State of Forest Report 2021, https://fsi.nic.in/forest-report-2021-details [accessed 13t March, 2024]

2. Central Electricity Authority Per capita consumption. https://cea.nic.in/dashboard/?lang=en [accessed 13 March 2024]

3. Ministry of Power (2023) All India Electricity Statistics, New Delhi

4. Asian Development Bank Sector Assement in Meghalaya Power Distribution Sector Improvement Project: Report and Recommendation of the President, https://www.adb.org/projects/documents/ind-51308-004-rrp [accessed 13 March 2024]

5. Department of Mining and Geology (2024) Government of Meghalaya, https://megdmg.gov.in/minerals.html [accessed 13

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