Oxy-hydrogen gas as a sustainable fuel for the welding industry: Alternative for oxy-acetylene gas

Juliet Attah , Latifatu Mohammed , Andrew Nyamful , Paulina Donkor , Anita Asamoah , Mohammed Nafiu Zainudeen , John Adjah , Charles K. Klutse , Sylvester Attakorah Birikorang , Frederick Agyemang , Owiredu Gyampo
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Abstract

The urgent need to address climate change has prompted researchers to explore sustainable power generation methods using low or net-zero fuels and energy storage. Historically, gases derived from acetylene or LPG have been used for welding in factories. Despite its negative effects on the environment and human health, acetylene gas remains widely used. Examples of pollutants released from acetylene gas include carbon dioxide and carbon monoxide, both of which contribute to the greenhouse effect and global warming. There is a need for an alternative gas that is environmentally friendly, economically viable, and readily available. Hydrogen gas is currently used across various industries and is increasingly considered a potential primary fuel source for the future. In this study, a hydrogen fuel cell was used to produce HHO (brown) gas as a replacement for acetylene through electrolysis. The HHO gas was used to weld a randomly selected test piece, which was then evaluated alongside an acetylene-welded test piece. The integrity of both welds was assessed using dye-penetrant and radiographic testing, showing that welds from both gases were strong. Welding with HHO gas, followed by non-destructive inspection, also proved effective, with any defects attributed to inexperience in welding. The adoption of HHO gas in the welding industry is recommended due to its potential socio-economic benefits, health advantages, and environmental friendliness. Challenges related to initial investment costs may be mitigated as technology advances. Further research should focus on qualitative weld testing, economic and environmental impact assessments, and developing a business model for HHO systems.

Abstract Image

氧-氢气作为焊接工业的可持续燃料:氧-乙炔气体的替代品
应对气候变化的迫切需要促使研究人员探索使用低碳或净零燃料和储能的可持续发电方法。从历史上看,从乙炔或液化石油气中产生的气体被用于工厂的焊接。尽管对环境和人类健康有负面影响,但乙炔气体仍被广泛使用。乙炔气体释放的污染物包括二氧化碳和一氧化碳,这两种气体都会导致温室效应和全球变暖。我们需要一种环保、经济可行、容易获得的替代气体。氢气目前被广泛应用于各个行业,并且越来越被认为是未来潜在的主要燃料来源。在本研究中,利用氢燃料电池通过电解产生HHO(棕色)气体作为乙炔的替代品。HHO气体用于焊接随机选择的试件,然后与乙炔焊接试件一起进行评估。使用染料渗透和射线检测评估了两个焊缝的完整性,表明两种气体的焊缝都很牢固。用HHO气体焊接,随后进行无损检测,也证明是有效的,任何缺陷都归因于焊接经验不足。由于其潜在的社会经济效益、健康优势和环境友好性,建议在焊接行业采用HHO气体。随着技术的进步,与初始投资成本相关的挑战可能会得到缓解。进一步的研究应集中在定性焊接试验、经济和环境影响评估以及开发HHO系统的商业模式。
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