Flue Gas and Emissions Analyzers
Furnaces, heaters, and boilers burn fuel in the presence of oxygen to produce heat. Achieving an intelligent balance of fuel and air will provide the most efficient combustion and highest cost savings.
Measuring the exhaust gas is an excellent way to optimize fuel and air input. Nova manufactures continuous and portable analyzers for this purpose. A Nova flue gas analyzer will enable you to measure the concentrations of various gases and adjust burners on a boiler to help achieve optimal combustion.
Efficient combustion also reduces emission of pollutants such as nitric oxide (NO), nitrogen dioxide (NO2), sulfur dioxide (SO2), and particulate matter. A gas analyzer will also help measure various gas pollutants in the exhaust for environmental reasons.
Flue Gas Analyzer Models
Nova portable and continuous flue gas analyzer systems have been a preferred choice by professionals for nearly 35 years. Technicians and facilities choose Nova Systems because they're versatile, intuitive and easy-to-use, and durable.
Flue gas analysis using a Nova flue gas analyser will enable you to measure the concentrations of pollutants present and adjust burners on a boiler for optimal combustion. Nova exhaust gas analysers are useful for environmental control, for general boiler maintenance, and also as a tool for reducing fuel costs.
Nova gas monitor systems feature these high quality flue gas analyzer models:
- 300 Series Portable Flue Gas Analyzers
- 5000 Series Portable Flue Gas Analysers
- 7200 Continuous Flue Gas Analyzer System for Clean Gas
- 7300 Continuous Flue Gas Analyser System for Acidic Gases
- 7240 Heated Probe & Filter System
Nova Analytical Systems is dedicated to quality, safety, and reliability. Our continuous flue gas analyzers are sturdy and weather-proof. They are able to function in temperatures from -22 F to over 100 F with the appropriate weather package options. All of our models come fully calibrated directly from the factory, right out of the box. They can also be modified with extra filtration devices for improved sample quality.
Both our continuous and portable exhaust analyzers measure Oxygen, Carbon Monoxide, Carbon Dioxide and temperature. Ask us about customization packages made to measure Nitrogen Oxide, Nitrogen Dioxide, and Sulfur Dioxide gases.
Nova's analyzers use reliable high volume pumps for quicker reaction times. In our stack gas analyzers, the detectors and sensors can reach 90% of reading in less than 20-30 seconds in most cases. (Sample line lengths will add to response time.)
Other features of the Nova Flue Gas Analyzer Systems:
Click for Flu Gas Analyzer FAQs
Optional stack temperature readout range of 32-1800 F.
A variety of available cabinet packages allow for easy installation in different climates.
Our continuous exhaust analyzers can be customized to include multiple sample extraction points.
Hazardous area purge kits available by request.
Most of our portable analyzers can be connected to a personal computer with an optional Serial Output Package that includes a USB connection and data-logging software.
Most continuous flue gas analyzers can be outfitted with optional Serial Output Package with a USB, RS-232, Ethernet, or RS-485 connection.
Stationary Engine Exhaust Analysis
It is quite common to see landfill or biogas sites equipped with stationary engines being fueled by the produced gas. The produced gas needs to be cleaned of contaminants to avoid fouling the engine. A scrubber may be installed on the site for this purpose. A biogas analyzer may be used to evaluate the efficiency of the scrubber equipment.
Some sites may require analysis of the engine exhaust for diagnostic reasons or emissions reporting. The models mentioned above may be used for this purpose. On most engines, the extraction probe may be mounted on the exhaust stack and include an inverted pre-filter for light particulate removal. Multiple engines may be sampled on a time-cycled basis using an auto-sequencer.
- 7200 Continuous Flue Gas Analyzer System for Clean Gas
- 7300 Continuous Flue Gas Analyser System for Acidic Gases
- 7240 Heated Probe & Filter System
Portable Engine Exhaust Analyzers
Analysis of exhaust gas from combustion engines can help evaluate engine performance and diagnose problems.
A Nova portable engine exhaust gas analyzer can measure Oxygen (O2), Carbon Monoxide (CO), Carbon Dioxide (CO2), Nitrogen Oxide (NO), Nitrogen Dioxide (NO2), and Hydrocarbons (HC's).
Oxygen: Filtered ambient air enters the engine and forms part of he fuel mixture. Ambient air contains 20.9% O2. Ideally, in most engine types, this O2 should be consumed as the fuel is burned. Oxygen levels analyzed at the tailpipe indicate unburned O2, and represent a lean air/fuel mixture.
Hydrocarbons: the HC's channel is calibrated as hexane or propane depending on the vehicle type the analyzer is to be used on. The measurement itself represents unburned fuel and is measured in the ppm (parts per million). Modern automobiles in good running order frequently show 10ppm or less. Trucks and forklifts may have higher levels due to fuel type or engine style.
Carbon Dioxide: the level of CO2 is a product of combustion and represents the amount of fully burned fuel. Therefore, a higher CO2 level indicates a higher engine efficiency. Many fuel injection engines will show approximately 15% CO2.
Carbon Monoxide: Partially burned fuel results in CO. High CO levels indicate a 'rich' fuel mixture. A perfect fuel mixture meters in exactly enough fuel to consume all of the O2 entering the engine. A perfect ratio is not sustainable in real-life operation. A fuel mixture that contains excess fuel is usually referred to as a 'rich' condition. A 'lean' condition refers to an excess of O2.
NOx: NOx generally refers to NO and NO2 (nitric oxide and nitrogen dioxide). This measurement is in ppm and represents the combustion products of burning nitrogen. This occurs at the higher engine temperatures associated with a lean fuel mixture or being under load. Of the NOx output of a typical engine, the NO component will usually make up the highest proportion. Diesel engines are generally associated with higher NOx and particulate emissions.
Nova can provide reasonably-priced portable gas analyzers for engine exhaust analysis. The following gas analyses are available:
- Oxygen (O2)
- Carbon Monoxide (CO) (in percent or ppm)
- Carbon Dioxide (CO2)
- Nitrogen Oxide (NO)
- Nitrogen Dioxide (NO2)
- Hydrocarbons (calibrated as hexane or propane)
The Nova analyzer can be used for checking engine exhaust emissions from diesel, gasoline, propane, or natural gas powered 2 and 4 cycle engines. This includes small engines, cars, trucks, fork lift trucks, tractors, etc.
This analyzer comes in a sturdy suitcase-type enclosure which is weather-proof when closed. It can be used in the shop or taken on the road. It has an internal rechargeable battery, or it can be powered by the 12VDC power outlet on most cars.
An optional printer is available which can be activated using a corded remote-control switch. This allows the operator to print a receipt containing all gas readings and VIN number without leaving the engine.
This analyzer is also frequently supplied with 4-20mA recorder output for each gas reading. An optional digital serial output package is available with computer software. The software allows the user to view and log the analyzer output data on a personal computer.
Nova 7460 Series Engine Exhaust Analyzers
See also this post and this post from Nova's blog for additional information on the engine exhaust analyzers.
If you are interested in engine exhaust analysis and need more information on this instrument, you can make your request here or here.
For gas analyzers, contact Nova Analytical Systems toll-free at (800) 295 3771
Email us at sales@nova-gas.com OR
Email us at websales@nova-gas.com
