An Experimental Comparative Study of Large-Sized Direct Solar Fryers for Injera Baking Applications

被引:0
作者
Hailu, Mesele Hayelom [1 ,2 ]
Kahsay, Mulu Bayray [1 ,2 ]
Tesfay, Asfafaw Haileslassie [1 ,2 ]
Nydal, Ole Jorgen [1 ]
机构
[1] Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, Varmetekn lab, Kolbjorn Hejes V 1B,Floor 3, NO-7034 Trondheim, Norway
[2] Mekelle Univ, Ethiopian Inst Technol Mekelle EiT M, Sch Mech & Ind Engn, POB 231, Mekelle, Ethiopia
关键词
solar fryers; injera baking; solar frying; direct solar frying; large-sized solar fryers; PERFORMANCE; ETHIOPIA; DESIGN; TECHNOLOGIES; QUALITY; MITAD;
D O I
10.3390/en17194949
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This research experimentally demonstrates the practicability of using large-sized direct solar frying as an alternative technology for the predominantly biomass-based injera baking method. The system was designed and developed with fryers 40, 50, and 55 cm in diameter and two operational options: continuous mode and alternating mode. Extensive experimental testing was conducted on each prototype to demonstrate solar frying and determine the relative performance. The findings indicate that the 2 kW heating capacity of the 40 cm-sized solar fryer model conducted baking processes at a relatively lower system temperature in both application modes compared to the larger-sized fryers. As a result, this system maintained a consistent average fryer temperature distribution and shorter initial heating time, without the requirement of a reheating process during the subsequent baking cycles. The experimental testing also demonstrated that alternating-mode applications were more practical for the 40 cm-sized fryers than for the larger ones. Overall, direct solar frying is more efficient and convenient for the 40 cm-sized solar fryers. In contrast, the larger-sized systems required a larger fryer thermal storage capacity coupled with larger-size solar concentrators to maintain equivalent stable operational conditions, conversely leading to a lack of application simplicity and higher system costs.
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页数:16
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共 30 条
  • [1] A reviewof injera baking technologies in Ethiopia: Challenges and gaps
    Adem, Kamil Dino
    Ambie, Demiss Alemu
    [J]. ENERGY FOR SUSTAINABLE DEVELOPMENT, 2017, 41 : 69 - 80
  • [2] Status and Benefits of Renewable Energy Technologies in the Rural Areas of Ethiopia: A Case Study on Improved Cooking Stoves and Biogas Technologies
    Alemayehu, Yitayal Addis
    [J]. INTERNATIONAL JOURNAL OF RENEWABLE ENERGY DEVELOPMENT-IJRED, 2015, 4 (02): : 103 - 111
  • [3] A review of recent advances in solar cooking technology
    Aramesh, Mohamad
    Ghalebani, Mehdi
    Kasaeian, Alibakhsh
    Zamani, Hosein
    Lorenzini, Giulio
    Mahian, Omid
    Wongwises, Somchai
    [J]. RENEWABLE ENERGY, 2019, 140 : 419 - 435
  • [4] The current status, challenges and prospects of using biomass energy in Ethiopia
    Benti, Natei Ermias
    Gurmesa, Gamachis Sakata
    Argaw, Tegenu
    Aneseyee, Abreham Berta
    Gunta, Solomon
    Kassahun, Gashaw Beyene
    Aga, Genene Shiferaw
    Asfaw, Ashenafi Abebe
    [J]. BIOTECHNOLOGY FOR BIOFUELS, 2021, 14 (01)
  • [5] Performance improvement of an electric injera baking pan (Mitad) using copper powder as additive material
    Berhanu, Hiwot
    Bekele, Addisu
    Venkatachalam, Chandraprabu
    Sivalingam, Suyambazhahan
    [J]. ENERGY FOR SUSTAINABLE DEVELOPMENT, 2022, 68 : 242 - 257
  • [6] Beyene GE., 2018, Opportunities for transition to clean household energy in Ethiopia: application of the household energy assessment rapid tool-HEART
  • [7] A comprehensive review on solar cookers
    Cuce, Erdem
    Cuce, Pinar Mert
    [J]. APPLIED ENERGY, 2013, 102 : 1399 - 1421
  • [8] Occupational exposure to indoor air pollution among bakery workers in Ethiopia; A comparison of electric and biomass cookstoves
    Downward, George S.
    van der Zwaag, Hugo P.
    Simons, Leon
    Meliefste, Kees
    Tefera, Yifokire
    Carreon, J. Rosales
    Vermeulen, Roel
    Smit, Lidwien A. M.
    [J]. ENVIRONMENTAL POLLUTION, 2018, 233 : 690 - 697
  • [9] Energy choice and fuel stacking among rural households of Southern Ethiopia
    Dumga, Kassahun Trueha
    Goswami, Kishor
    [J]. ENERGY FOR SUSTAINABLE DEVELOPMENT, 2023, 76
  • [10] Evaluation of performance of household solar cookers
    Ebersviller, Seth M.
    Jetter, James J.
    [J]. SOLAR ENERGY, 2020, 208 (208) : 166 - 172