Fuel oil is used to heat and/or power large commercial and institutional buildings. The problem for plant and facility managers is the variable viscosity of delivered oil, as. inefficient burning of fuel can result if the oil does not properly atomize during combustion.
The Brookfield AST-100 inline process viscometer is designed for use in pressurized fuel oil delivery systems. Plant managers at these facilities purchase variable grades of #5 and #6 fuel oil from many diverse spot markets around the globe. Steam or electric heat exchangers are used to preheat the oil prior to combustion. Proper atomization ensures the best combustion efficiency which requires continuous and accurate viscosity measurement and control.
To burn fuel oil at the high volume flow rates demanded of modern boiler units, the oil must be atomized (i.e. dispersed into the furnace as a fine mist). This assures high speed vaporization and ignition. Most burners atomize oil by shearing the oil into small droplets. Burner manufacturers recommend that the oil be supplied to the burners at a specific viscosity to maintain consistent atomization. Failure to maintain proper atomization results in:
The Brookfield AST-100 inline process viscometer accurately monitors and controls viscosity and temperature in pressurized oil delivery systems. Accurate viscosity measurements are necessary to maximize the efficient atomization and delivery of a variety of paraffin-based oils, asphaltic-based oils, as well as #5 and #6 heating fuels. The AST-100 process viscometer also ensures that no fluctuations in temperature and viscosity occur. The AST-100 solution includes the following design considerations: