Contents
Do I need a flue gas analyser?
A flue gas analyser (FGA) is a vital tool for any Gas Safe Register, OFTEC or HETAS qualified engineer when installing, commissioning, fault finding, repairing or servicing heating appliances. On modern gas appliances you can not see the burner flame.
What instrument measures flue gas?
Explanation: Hand held Flue Gas Analyser (FGA) A handheld FGA will typically measure O2 and/or CO2 and sometimes other toxic gases such as Nitric Oxide (NO) and Carbon Monoxide (CO). Various technologies are used for the gas measurement e.g. Catalytic, Infrared and others.
What is the ideal CO2 content of flue gas?
approximately 10%
Carbon dioxide – CO2 – is a combustion product and the content of CO2 in a flue gas is an important indication of the combustion efficiency. Optimal content of carbon dioxide CO2 after combustion is approximately 10% for natural gas and approximately 13% for lighter oils.
What does flue gas contain?
Flue gas (sometimes called exhaust gas or stack gas) is the gas that emanates from combustion plants and which contains the reaction products of fuel and combustion air and residual substances such as particulate matter (dust), sulfur oxides, nitrogen oxides, and carbon monoxide (Table 3.7).
Which flue gas Analyser is best?
Testo 310
Testo 310. If you’re looking for a simple and easy to use flue analyser, the Testo 310 is the perfect choice. It allows heating engineers to take all basic measurements from heating systems, as well as more complex combustion measurements. This includes Direct O2, CO, flue gas and ambient temperature.
How is flue gas temperature measured?
The flue gas temperature is measured in the hot spot of the flue gas where the temperature is highest. The ambient temperature is measured at the intake opening of the burner or in the supply pipe of systems independent of ambient air.
How is the net flue gas temperature determined?
The “net stack temperature” is the difference between the flue gas inside the chimney and the room temperature outside the burner. Net stack temperatures above 700oF (370oC) are in general to high. Typical values are between 330 – 500oF (160 – 260oC).
Is flue gas dangerous?
Boiler flues are a crucial part of your heating system. If your boiler isn’t burning the gas correctly, carbon monoxide could be produced too. Boilers are made to be safe, and these gases shouldn’t harm you. However, a blocked flue can mean the gases become trapped in your home, causing you to breathe them in.
What does a portable flue gas analyser do?
What is a Portable Flue Gas Analyser? A portable electronic device, a flue gas analyser measures and displays the products of combustion from both domestic and commericial fossil fuelled appliances. Additionally, they can measure the ambient air quality in rooms or buildings.
How are flue gases measured in an appliance?
Appliance testing. A Flue gas analyser measures flue gases – You place its’ probe in the chimney or appliance exhaust and see what levels of Oxygen (O2), Carbon Monoxide (CO), Carbon Dioxide (CO2) and flue gas temperatures are present.
How is flue gas analysis done in a boiler?
Operation. Flue Gas Analysis is performed by inserting a probe into the flue of the furnace, boiler, etc., between the last heat exchanger and draft diverter or any source of make-up air that could enter the flue that did not pass through the combustion process. This is known as ‘in-situ’ testing.
Why do you need a Nova flue gas analyzer?
Flue gas analysis using a Nova flue gas analyzer will enable you to measure the concentrations of pollutants present and adjust burners on a boiler for optimal combustion. Nova exhaust gas analyzers are useful for environmental control, for general boiler maintenance, and also as a tool for reducing fuel costs.