The Combustion of a Diesel Oil-Based/Coal/Water Slurry in a Horizontal Cylindrical Furnace: An Experimental Investigation

Abstract

The current work investigates the use of a coal/oil/water slurry as an alternative fuel in boilers and industrial furnaces. Experiments were carried out on chosen flames with constant input heat throughput and variable air/fuel ratios for three major oil/coal/water mixtures (on a mass basis) as follows: (Case1: pure oil; reference case), (Case2: 80%, 10 %, 10 %) and (Case3: 70%, 15%, 15%). The results showed that case 2 had a significant improvement in both heat transfer to the cooling jacket and combustion efficiency, which was accompanied by a decrease in NOx emissions. Further increase in the ratio of coal and water in the fuel mixture (case 3) produced a significant degradation in the overall combustion characteristics, referring to an upper limit of coal and water loading ratios of only 10%. Oil-coal-water slurries are considered a significant alternative source of energy.

Cofiring of Oil and Gaseous Fuels Through an Innovative Coaxial, Double Swirl Burner

“…The combustor shown in Fig. ( 1) is the same as in [9] and is made of a thick metal sheet with a 0.7 cm thickness and has a horizontal, cylindrical, water-cooled flame tube with an internal diameter of 40 cm and a length of 2 m. The 500 mm outside diameter water jacket that is split into 9 contiguous segments with increasingly longer lengths along the flame tube cools the flame tube. Each segment receives cooling water from the main cooling water header at the bottom of the combustor through a pipe.…”

An investigation on the behavior of the torch flame in the LBGE combustion process

“…Burning fossil fuel for our vehicles, trucks, ships, trains, and planes is the primary source of greenhouse gas emissions from transportation [2,3]. From 1990 to 2020, the GHG emissions from the transportation sector grew by 92% [4].…”