Nova Analytical Systems: October 2013

Wednesday, October 23, 2013

#147 - Hydrogen - Nova Model 380 for Generator Monitoring

Many large power generators use hydrogen gas as a coolant. Hydrogen has low density and very good thermal conductivity. It can carry away the heat produced in a generator and therefore allow the generator to operate at a higher power output.

The Nova Model 380 is an excellent choice for monitoring the hydrogen atmosphere in a generator. It offers the following analysis ranges:

Range 1: 0-100% Hydrogen in Air
Range 2: 0-100% Hydrogen in CO2
Range 3: 0-100% Air in CO2

The ranges mentioned above are designed to allow monitoring of the purge procedure that is implemented during a generator shutdown. However, not all purge procedures are exactly the same for each generator. We have been asked recently by some power companies to consider offering some additional capabilities to the Nova Model 380.

Would these features be of interest to you?

- We can produce a variation of Model 380 that allows it to be used on generators that are purged with Nitrogen (N2) instead of CO2.

- We can also produce a Model 380 that is set up for Argon (Ar) instead of CO2.

- We can also add dew point analysis and hydrogen pressure indication to Model 380.

If any of these options are of interest to you, contact us here about these options.

For information on Nova gas analyzer systems, give Mike or Dave at Nova a call, or send us an e-mail.

1-800-295-3771

sales at nova-gas dot com

websales at nova-gas dot com

http://www.nova-gas.com/

https://twitter.com/NOVAGAS

http://www.linkedin.com/company/nova-analytical-systems-inc-

http://www.tenovagroup.com/

Thursday, October 17, 2013

#146 - Tenova Goodfellow Introduces Velocity Measurement for High Intensity Industrial Gas Streams

Tenova Goodfellow has developed a new gas velocity sensor that is able to continuously measure the velocity of a hot and dusty gas stream.

This system can accurately measure the velocity of gases that are in excess of 600 degrees C. Other methods of velocity measurement will not survive in such harsh environments.

We posted some additional information along with a brochure on the website. Check it out at: http://www.nova-gas.com/OVM%20-%20Landing%20page.html

Wednesday, October 2, 2013

#145 - Nova Analyzers from the Field – Episode 1

Intro - We frequently see old Nova equipment still in use all over the world. It’s amazing how long some pieces of sensitive analytical equipment can last in the right application. Every once in a while, I will try to post a picture and a short blurb about one of these older pieces that crosses our path. Here’s the first one:

We were sent a picture recently of an early model Nova portable analyzer. It is being used in a lab somewhere in Quebec, Canada by a company that manufactures furnaces.

This unit is approximately 27yrs old and is apparently still ticking.

The actual model number of this unit is no longer in circulation. And the serial number is so old that I couldn’t locate the original hand-written production file. However, some of the features of the front panel suggest that it is similar to our current Model 375.

The picture indicates that this instrument will do analysis of oxygen, carbon monoxide, carbon dioxide.

There is an illuminated push-button for ‘CO RANGE’ which probably allows the user to switch between a coarse and fine scale. The reason for this usually has to do with the operation of tuning a boiler or furnace. When the furnace is out of tune, it will produce higher amounts of carbon monoxide. Improving the fuel to air ratio will result in lower CO levels.

The high CO range on the analyzer will allow the technician to ‘see’ the CO analysis during the out-of-tune condition. After the coarse adjustments are made, the technician can switch to the fine CO scale for further tuning.

In the newer models, the ranges are as follows:

0-25.0% Oxygen

0-2000 PPM and 0-4.00% CO - switch selectable

0-20.0% CO2

Here is a link to the current model.