Analytical Instrumentation & Environmental Monitoring


Boiler inefficiency can be avoided

May 2014 Analytical Instrumentation & Environmental Monitoring

The cost of buying a boiler is small compared to the amount of money spent operating it year on year, an expense governed by boiler efficiency. Although boiler efficiency is an important parameter when specifying a new boiler, little attention is given to it once it is steaming.

The myth is that the boiler will always generate steam at the rated efficiency. The truth is that one of the most critical parameters in boiler operation is its actual delivered efficiency. What distinguishes one boiler from another is the actual cost at which steam is generated.

Surveys show the true delivered boiler efficiency to be lower by 3-12% than rated. Usually ignored, the boiler continues running at lower efficiency and consuming more fuel than it actually should. Data collected from hundreds of boilers show low operating efficiencies. As the fuel bills mount, it becomes more and more expensive to turn a blind eye to this inefficiency.

Impact of boiler efficiency on steam generation

Consider a typical steam and condensate loop, Figure 1 shows the flow of energy through the system. The impact of a drop in boiler efficiency is seen when a drop in boiler efficiency of 10% results in a consumption increase of 16%.

Figure 1.
Figure 1.

The cost of fuels has increased significantly in the recent past, but rated boiler efficiency has not. This has pushed up the steam generation costs significantly. Also, the basic costs to monitor boiler efficiency have come down recently. Both these factors have made boiler efficiency monitoring economical and beneficial, even for small capacity boilers starting at 1 TPH. Boiler efficiency monitoring has never made as much sense as it does today.

If boiler efficiency is not being measured and optimised, users stand to lose significantly on fuel costs. The clock is ticking and it has become necessary to monitor boiler efficiency on a continuous basis.

Environmental Process Analytics offers a fully comprehensive boiler efficiency monitoring and control system. The Effimax system offers touch screen technology for the instantaneous display of all parameters that impact boiler efficiency. Features include:

* Online boiler efficiency measurement with break-up of losses (as per BS845).

* Graphical analysis of boiler performance metrics.

* Boiler performance diagnostic reports with alarms.

* Web based remote performance monitoring.

For more information contact Stuart Truebody, Environmental Process Analytics, +27 (0)12 661 6656, envirosa@mweb.co.za, www.envirosa.com


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Optimised fuel blending
May 2019, Yokogawa South Africa , Analytical Instrumentation & Environmental Monitoring
This risk has led the refiners to give more than the norms specify, resulting in a giveaway on quality and profit. The use of near infrared (NIR) technology has helped refiners get real-time data to ensure ...

Read more...
Inline analytical technology for liquor process control
May 2019, Morton Controls , Analytical Instrumentation & Environmental Monitoring
One of the most important processes in the pulp and paper industry is the alkaline sulphate process, where lignin is separated from the fibrous material. Recycling of the chemicals used is vital for environmental ...

Read more...
Gas monitors
Africa Automation Fair 2019 Preview , Analytical Instrumentation & Environmental Monitoring
RTS Africa Technologies is exhibiting LaserGas gas monitors from Neo Monitors.    These are ideal for accurate measurement of specific components in gas mixtures such as flue gases. The NEO LaserGas monitor ...

Read more...
Spectrum analysers for RF signals
Africa Automation Fair 2019 Preview, Accutronics , Analytical Instrumentation & Environmental Monitoring
Accutronics is exhibiting the SignalShark real-time spectrum analysers for the detection, analysis, classification and localisation of RF Signals. These are on show at Stand D06. Features include a frequency ...

Read more...
In-situ gas analyser
Africa Automation Fair 2019 Preview, Microsep , Analytical Instrumentation & Environmental Monitoring
Mettler Toledo Ingold’s GPro 500 TDL system is ideal for tough and challenging gas measurement applications and is designed for in-situ petrochemical processes and safety applications. TDL gas analysers ...

Read more...
Process filtration solutions
Africa Automation Fair 2019 Preview , Analytical Instrumentation & Environmental Monitoring
National Separations is showcasing its range of liquid and gas filtration systems supplied by Amazon Filters at Stand B10. Amazon Filters is a global supplier of a comprehensive range of microfiltration ...

Read more...
A huge range of process instrumentation
Africa Automation Fair 2019 Preview, Danntech , Analytical Instrumentation & Environmental Monitoring
Danntech Process Instrumentation’s recently updated Vodex-200A for measuring the velocity of detonation of explosives is on show at Stand F03. Danntech has more than 80 products in local production, with ...

Read more...
A leader in process measurement
Africa Automation Fair 2019 Preview, PREI Instrumentation , Analytical Instrumentation & Environmental Monitoring
PREI Instrumentation is a leading supplier and technical support specialist for on-line, portable and laboratory analysers for the potable, waste and industrial water markets, as well as rotating machinery ...

Read more...
Instruments for the ­monitoring and control of pH
Africa Automation Fair 2019 Preview, Hanna Instruments , Analytical Instrumentation & Environmental Monitoring
Hanna Instruments, a specialist in analytical instrumentation, has on show at Stand C10 a range of instruments for the monitoring and control of pH in water conditioning and industrial effluent applications. ...

Read more...
Online analytical systems for the water industry
Africa Automation Fair 2019 Preview, Swan Instruments , Analytical Instrumentation & Environmental Monitoring
Swan is a global supplier of online analytical systems for the water industry. Visit Stand A08 to find out more about Swan’s product portfolio. This ranges from ultrapure water for pharmaceutical and ...

Read more...