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Experimental Assessment of Energy Potentials from Tea Wastes as a Source of Energy: A Case of Itona Tea Factory in Tanzania

Received: 10 November 2023     Accepted: 1 December 2023     Published: 30 August 2024
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Abstract

Tea processing is an energy-intensive process. However, high agricultural productivity and subsequently the growth of the green revolution have been made possible only by a large amount of energy inputs, especially those from fossil fuels, wood fuels, and electricity. With recent price rise and scarcity of these fuels there has been a trend towards use of alternative energy sources such as waste (agricultural waste) to energy that could solve both energy and environment issues. Moreover, these energy resources have not been able to provide an economically viable solution for agricultural applications so long as they seem to contain amount of energy which can be source of energy to be used in various factories in rural areas through gasification process. A gasifier is normally fuel specific system and it is tailored around a fuel rather than the other way round. Hence, this paper presents an experimental assessment of energy potentials from tea wastes available at Itonaa Tea Factory for tea drying processes as important data for agricultural wastes. The experimental measurement of energy potential from tea wastes was done using bomb calorimeter, muffle furnace and energy balances to determine calorific value moisture content and energy potentials of tea waste respectively. The findings indicate that the combined energy potential of factory and garden tea waste was found to be 2.78x108kWh, and corresponding electrical energy was estimated to be 2.78x107kWh which is enough for tea drying process in tea manufacturing plant. The total energy used in the production of tea was discovered to be equal 3.5 - 7.5 kWh/kg of made tea. Thus, total energy consumption (4.5 kWh/kg of made tea) for processing of 9.6 x 106 kg of tea from 4.5 x 103 hectares of tea plantation in Mufindi for the period of 2021-2022 was 4.32x107 kWh. Thus, with the proper utilization of energy conversion technology of tea waste, part of the energy requirement in processing of tea could be met reducing environmental challenges associated with both wood fuel burning and tea waste disposal.

Published in International Journal of Energy and Power Engineering (Volume 13, Issue 4)
DOI 10.11648/j.ijepe.20241304.11
Page(s) 63-66
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Factory Tea Waste, Potential Energy, Calorific Value, Garden Tea Waste

References
[1] W. C. Reygaert, “Green Tea Catechins: Their Use in Treating and Preventing Infectious Diseases,” vol. 2018, 2018.
[2] B. Debnath, D. Haldar, and M. K. Purkait, “Potential and sustainable utilization of tea waste: A review on present status and future trends,” J. Environ. Chem. Eng., vol. 9, no. 5, p. 106179, 2021,
[3] H. Vishnoi, R. Bodla, R. Kant, and R. B. Bodla, “Green Tea (Camellia Sinensis) and Its Antioxidant Property: a Review,” Artic. Int. J. Pharm. Sci. Res., vol. 9, no. 5, p. 1723, 2018,
[4] J. L. Taulo and A. B. Sebitosi, “Material and energy flow analysis of the Malawian tea industry,” Renew. Sustain. Energy Rev., vol. 56, pp. 1337–1350, 2016,
[5] T. R. Dias, G. Tomás, N. F. Teixeira, M. G. Alves, P. F. Oliveira, and B. M. Silva, “White Tea (Camellia Sinensis (L.)): Antioxidant Properties And Beneficial Health Effects,” Int. J. Food Sci. Nutr. Diet., vol. 2, no. 2, pp. 19–26, 2013.
[6] M. Saeed et al., “Green tea (Camellia sinensis) and L-theanine: Medicinal values and beneficial applications in humans—A comprehensive review,” Biomed. Pharmacother., vol. 95, no. July, pp. 1260–1275, 2017,
[7] J. Xia, Z. Guo, S. Fang, J. Gu, and X. Liang, “Effect of Drying Methods on Volatile Compounds of Burdock,” Foods, vol. 70, no. 868, pp. 1–17, 2021.
[8] K. Teshome, “Effect of tea processing methods on biochemical composition and sensory quality of black tea (Camellia sinensis (L.) O. Kuntze): A review,” J. Hortic. For., vol. 11, no. 6, pp. 84–95, 2019,
[9] K. R. J. Pou, S. K. Paul, and S. Malakar, Industrial processing of CTC black tea. Elsevier Inc., 2019.
[10] J. I. Mwenda, “Analysis of energy utilization and renewable energy potential in KTDA region two tea factories in Kenya kenyatta university,” Master Sci. Degree Energy Technol., 2016.
[11] P. P. Dutta and D. C. Baruah, “Gasification of tea (Camellia sinensis (L.) O. Kuntze) shrubs for black tea manufacturing process heat generation in Assam, India,” Biomass and Bioenergy, vol. 66, pp. 27–38, 2014,
[12] C. R. Muoki, T. K. Maritim, W. A. Oluoch, S. M. Kamunya, and J. K. Bore, “Combating Climate Change in the Kenyan Tea Industry,” Front. Plant Sci., vol. 11, no. March, pp. 1–10, 2020,
[13] S. L. Jayasinghe and L. Kumar, “Potential impact of the current and future climate on the yield, quality, and climate suitability for tea [camellia sinensis (L.) O. Kuntze]: A systematic review,” Agronomy, vol. 11, no. 4, 2021,
[14] R. Gupta and S. K. Dey, “Development of a productivity measurement model for tea industry,” J. Eng. Appl. Sci., vol. 5, no. 12, pp. 16–25, 2010.
[15] A. Chowdhury, S. Sarkar, A. Chowdhury, S. Bardhan, P. Mandal, and M. Chowdhury, “Tea waste management: A case study from West Bengal, India,” Indian J. Sci. Technol., vol. 9, no. 42, 2016,
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  • APA Style

    Mwampulo, A. S., Omari, A. M., Mwakipesile, D. (2024). Experimental Assessment of Energy Potentials from Tea Wastes as a Source of Energy: A Case of Itona Tea Factory in Tanzania. International Journal of Energy and Power Engineering, 13(4), 63-66. https://doi.org/10.11648/j.ijepe.20241304.11

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    ACS Style

    Mwampulo, A. S.; Omari, A. M.; Mwakipesile, D. Experimental Assessment of Energy Potentials from Tea Wastes as a Source of Energy: A Case of Itona Tea Factory in Tanzania. Int. J. Energy Power Eng. 2024, 13(4), 63-66. doi: 10.11648/j.ijepe.20241304.11

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    AMA Style

    Mwampulo AS, Omari AM, Mwakipesile D. Experimental Assessment of Energy Potentials from Tea Wastes as a Source of Energy: A Case of Itona Tea Factory in Tanzania. Int J Energy Power Eng. 2024;13(4):63-66. doi: 10.11648/j.ijepe.20241304.11

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  • @article{10.11648/j.ijepe.20241304.11,
      author = {Andrew Stephen Mwampulo and Arthur Mngoma Omari and Duncan Mwakipesile},
      title = {Experimental Assessment of Energy Potentials from Tea Wastes as a Source of Energy: A Case of Itona Tea Factory in Tanzania
    },
      journal = {International Journal of Energy and Power Engineering},
      volume = {13},
      number = {4},
      pages = {63-66},
      doi = {10.11648/j.ijepe.20241304.11},
      url = {https://doi.org/10.11648/j.ijepe.20241304.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20241304.11},
      abstract = {Tea processing is an energy-intensive process. However, high agricultural productivity and subsequently the growth of the green revolution have been made possible only by a large amount of energy inputs, especially those from fossil fuels, wood fuels, and electricity. With recent price rise and scarcity of these fuels there has been a trend towards use of alternative energy sources such as waste (agricultural waste) to energy that could solve both energy and environment issues. Moreover, these energy resources have not been able to provide an economically viable solution for agricultural applications so long as they seem to contain amount of energy which can be source of energy to be used in various factories in rural areas through gasification process. A gasifier is normally fuel specific system and it is tailored around a fuel rather than the other way round. Hence, this paper presents an experimental assessment of energy potentials from tea wastes available at Itonaa Tea Factory for tea drying processes as important data for agricultural wastes. The experimental measurement of energy potential from tea wastes was done using bomb calorimeter, muffle furnace and energy balances to determine calorific value moisture content and energy potentials of tea waste respectively. The findings indicate that the combined energy potential of factory and garden tea waste was found to be 2.78x108kWh, and corresponding electrical energy was estimated to be 2.78x107kWh which is enough for tea drying process in tea manufacturing plant. The total energy used in the production of tea was discovered to be equal 3.5 - 7.5 kWh/kg of made tea. Thus, total energy consumption (4.5 kWh/kg of made tea) for processing of 9.6 x 106 kg of tea from 4.5 x 103 hectares of tea plantation in Mufindi for the period of 2021-2022 was 4.32x107 kWh. Thus, with the proper utilization of energy conversion technology of tea waste, part of the energy requirement in processing of tea could be met reducing environmental challenges associated with both wood fuel burning and tea waste disposal.
    },
     year = {2024}
    }
    

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  • TY  - JOUR
    T1  - Experimental Assessment of Energy Potentials from Tea Wastes as a Source of Energy: A Case of Itona Tea Factory in Tanzania
    
    AU  - Andrew Stephen Mwampulo
    AU  - Arthur Mngoma Omari
    AU  - Duncan Mwakipesile
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    N1  - https://doi.org/10.11648/j.ijepe.20241304.11
    DO  - 10.11648/j.ijepe.20241304.11
    T2  - International Journal of Energy and Power Engineering
    JF  - International Journal of Energy and Power Engineering
    JO  - International Journal of Energy and Power Engineering
    SP  - 63
    EP  - 66
    PB  - Science Publishing Group
    SN  - 2326-960X
    UR  - https://doi.org/10.11648/j.ijepe.20241304.11
    AB  - Tea processing is an energy-intensive process. However, high agricultural productivity and subsequently the growth of the green revolution have been made possible only by a large amount of energy inputs, especially those from fossil fuels, wood fuels, and electricity. With recent price rise and scarcity of these fuels there has been a trend towards use of alternative energy sources such as waste (agricultural waste) to energy that could solve both energy and environment issues. Moreover, these energy resources have not been able to provide an economically viable solution for agricultural applications so long as they seem to contain amount of energy which can be source of energy to be used in various factories in rural areas through gasification process. A gasifier is normally fuel specific system and it is tailored around a fuel rather than the other way round. Hence, this paper presents an experimental assessment of energy potentials from tea wastes available at Itonaa Tea Factory for tea drying processes as important data for agricultural wastes. The experimental measurement of energy potential from tea wastes was done using bomb calorimeter, muffle furnace and energy balances to determine calorific value moisture content and energy potentials of tea waste respectively. The findings indicate that the combined energy potential of factory and garden tea waste was found to be 2.78x108kWh, and corresponding electrical energy was estimated to be 2.78x107kWh which is enough for tea drying process in tea manufacturing plant. The total energy used in the production of tea was discovered to be equal 3.5 - 7.5 kWh/kg of made tea. Thus, total energy consumption (4.5 kWh/kg of made tea) for processing of 9.6 x 106 kg of tea from 4.5 x 103 hectares of tea plantation in Mufindi for the period of 2021-2022 was 4.32x107 kWh. Thus, with the proper utilization of energy conversion technology of tea waste, part of the energy requirement in processing of tea could be met reducing environmental challenges associated with both wood fuel burning and tea waste disposal.
    
    VL  - 13
    IS  - 4
    ER  - 

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Author Information
  • Department of Electrical and Power Engineering, Mbeya University of Science and Technology, Mbeya, Tanzania

  • Department of Electrical and Power Engineering, Mbeya University of Science and Technology, Mbeya, Tanzania

  • Department Mechanical and Industrial Engineering, Mbeya University of Science and Technology, Mbeya, Tanzania

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