The Journal of Engineering and Exact Sciences – jCEC, Vol. 10 N. 03 (2024) journal homepage: https://periodicos.ufv.br/jcec eISSN: 2527-1075 ISSN: 2446-9416 1 Enhanced Carbon Neutral and Performance Characteristics Cookstove for Energy Sustainability Article Info: Article history: Received 2024-01-05 / Accepted 2024-03-27 / Available online 2024-03-27 doi: 10.18540/jcecvl10iss3pp18459 Samson Kolawole Fasogbon ORCID: https://orcid.org/0000-0001-8023-9369 University of Ibadan, Ibadan, Oyo State, Nigeria E-mail: sk.fasogbon@ui.edu.ng Emmanuel Segun Durowoju ORCID: https://orcid.org/0009-0003-7892-7121 Texas A&M University, Kingsville, Texas, USA E-mail: durowojues@gmail.com Theophilus Chibuzo Uzoh ORCID: https://orcid.org/0009-0001-4363-0171 Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria E-mail: uzohtheophilus@yahoo.com Kubiat Edeheudim George ORCID: https://orcid.org/0000-0002-5906-3175 University of Louisiana, Lafayette, Louisiana, USA E-mail: kubi4all@gmail.com Mark Onons Ikhifa ORCID: https://orcid.org/0009-0001-6762-4390 University of Louisiana, Lafayette, Louisiana, USA E-mail: markoatdetop@yahoo.com Timilehin Daniel Adegoke ORCID: https://orcid.org/0009-0004-5300-0925 University of Ibadan, Ibadan, Oyo state, Nigeria E-mail: timilehindaniel8888@gmail.com Ibrahim Ademola Fetuga ORCID: http://orcid.org/0000-0002-1943-4234 University of Lagos, Akoka, Lagos, Nigeria E-mail: fetugaebraheem@gmail.com Abstract Open fire cooking, which consists of either three stones arrangement in a triangular shape or iron three legs fabricated stove (Adogan), is a common way of cooking in developing and underdeveloped countries. This method of cooking is simple, but comes with its inherent problems that threaten energy sustainability concept; in a way of its harmful gases emissions, high cost; as occasioned by thermal inefficiency which also culminates in to high depletion rate; and ultimately deforestation. These energy sustainability factors and time wastages on wood fetching; had led significant number of researchers to investigate improvement process of the traditional cookstove; and have therefore developed some enhanced cookstoves for use. The article is aimed at designing an enhanced carbon neutral and performance characteristics cookstove for energy sustainability. Analytical basis, experimental studies and performance testing were conducted on existing improved traditional stove; with three burners of orifice sizes 0.8 cm, 1.0 cm, and 1.2 cm. The model with burner orifice size 1.2cm presented highest thermal efficiency, lowest specific fuel