Work

Study on the Co-atomization of immiscible liquids by a superheated steam jet

Year: 2025

Type: article

Abstract: This article presents the results of an experimental investigation into the co-atomization of immiscible liquids, exemplified by diesel fuel and water, using a jet of superheated steam. A digital visualization method employing a fluorescent dye was used to analyze spray characteristics, enabling separate detection of water and fuel droplets. The results demonstrated effective atomization of both liquids, with a predominant droplet size range of 10–40 μm. Combustion studies conducted using a low-emission laboratory-scale burner equipped with a steam-assisted injector showed that the addition of water led to a reduction in flame temperature by 300–400 °C and a decrease in nitrogen oxide (NOx) emissions by 30–50%. However, increasing the water flow rate resulted in a rise in carbon monoxide (CO) and hydrocarbon (CnHm) concentrations, as well as combustion instability. The findings confirm the potential of the co-atomization method for reducing harmful emissions but indicate the need for optimizing the fuel-to-water ratio to minimize adverse effects.

Source: Case Studies in Thermal Engineering

DOI: 10.1016/j.csite.2025.107569

Authors: A.T. Baidildina, A.T. Nurgaliyeva, E.B. Butakov, E.P. Kopyev, I.S. Sadkin, E. Yu Shadrin

Institutions: D. Serikbayev East Kazakhstan State Technical University, Novosibirsk State University, Institute of Thermophysics

Language: English

Topic: Fluid Dynamics and Heat Transfer

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: gold

Estimated APC paid: $1,620