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65 Cards in this Set

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An on-line analyzer provides as accurate results as lab analyzers do.

F

T o F

In a NDIR analyzer, it can also use a luft-type sensor

T

T o F

A combustion analyzer is used to measure the composition of boiler combustion gases

T

T o F

The measurement of oxygen is not very important, since it is not used very much in the chemical process.

F

T o F

Electrochemical oxygen analyzers need to have the electrolyte checked on a regular basis.

T

T o F

Opacity is measured by the amount of light that is received at the detector

T

T o F

All gases conduct heat

Yes

Y o N

_ is the process of measuring the physical, chemical, or electrical properties of chemical compounds so that the composition and quantities of the components can be determined.

Analysis

An _ is an instrument used to provide an analysis of a sample from the process

Analyzer

An _ is an instrument that is located in the process area and obtain frequent or continuous samples from the process.

Online Analyzer

A _ is an instrument that measures the concentration of an individual gas in a gaseous sample

Gas analyzer

A _ is a gas analyzer that measures the concentration of a single gas in a sample by comparing its ability to conduct heat to the ability of a reference gas to conduct heat.

Thermal conductivity

Two-chamber designs for a thermal conductivity analyzer allow a sample gas to be compared to a _ gas

Reference

The thermal conductivity detector can be a _ or _ design.

2 chamber or 4 chamber

A _ is a gas analyzer that uses the principle that different gases absorb different, very specific, wavelength of electromagnetic radiation in the infrared or ultraviolet regions of the electromagnetic spectrum

Radiant-energy absorption

A _ is a radiant-energy absorption analyzer consisting consisting of an IR electromagnetic radiation source, an IR detector, and 2 IR absorption chambers.

Nondispertion infrared

In a NDIR analyzer, on chamber contains the _ gas, and the other contains the _

Reference & Sample

In a _ sensor, the sample gas absorbs the IR radiation and heats up, while the reference gas does not absorb the IR radiation.

Luft Type

An NDIR analyzer is very specific for a _ suitable gas regardless of the composition of the background gases because the absorption of infrared radiation is _ related to the structure of the molecule

Single & directly

NOX contributes to _, _, and _ in our cities

Acid Rain, ozone, smog

An _ is a radiant-energy absorption analyzer consisting of a UV electromagnetic radiation source, a sample cell, and a detector that measures the absorption of UV radiation by the specific molecules.

Ultraviolet Analyzer

_ is necessary to support nearly all combustion reactions.

Oxygen

A _ is an analyzer consisting of 2 diamagnetic spheres filled with nitrogen which are connected with a bar to form a "dumbbell" shaped assembly.

Paramagnetic oxygen analyzer

An English chemist by the name of Michael Faraday discovered paramagnetism through his observation of how materials respond to _

Magnetic Field

A _ is an analyzer consisting of sensing head that uses magnetic fields to generate a "magnetic wind" that carries the oxygen-containing gas sample through a sample cell and across a pair of thermistors.

Thermoparamagnetic oxygen analyzer

A _ analyzer is an analyzer that measures an electric current generated when the analyzer is subjected to different oxygen concentrations on opposite sides of an electrode.

Zirconium oxide analyzer

An _ analyzer is a analyzer that measures an electric current generated by the reaction of oxygen with an eletrolytic reagent

Electrochemical oxygen

An _ is a gas analyzer consisting of a focused light source and an analyzer to measure the received light intensity

Opacity analyzer

A _ is an instrument that measures the amount of humidity in air.

Humidity analyzer

_is the ratio of the mass of water vapor to the mass of dry air

Humidity ratio

_ is the ratio of the actual amount of water vapor in the air to the maximum amount of water vapor possible at the same temperature.

Relative Humidity

When the relative humidity is 100%, the air is said to be _

Saturated

_ is the ratio of the mass of water vapor to the mass of dry air plus moisture.

Specific humidity

_ is the ambient air temperature measured by a thermometer that is freely exposed to the air but shielded from other heating or cooling effects.

Dry Bulb temp

_ is the lowest temperature that can be obtained through the cooling effect of water evaporating into the atmosphere.

Wet Bulb temp

A _ is a combination of a hygrometer, pressure sensor, and temperature-sensing instrument with digital processing to calculate relative humidity, absolute humidity, dry bulb temperature, dewpoint reading, and other properties for local display or transmission

Thermohygrometer

A sample that is used in an analyzer may be in the form of.

Gas, liquid, solids

What is one thing that an online analyzer provides.

Rapid Results

Name the common types of online analyzers.

Gas , humidity , solids

What is one thing all gas analyzer have in common?

Clean, constant temp, constant pressure

Name the most common types of gas analyzers.

Thermal Conductivity, radiant energy absorption, oxygen

The most common type of radiant-energy absorption analyzers are?

Nondispersive IR, UV analyzers

what flue gases are NDIR analyzers commonly used to monitor from combustion processes?

Carbon Dioxide, Nitrogen Oxide, Sulfuroxide, Methane

What is the largest source of NOX emissions.

Powerplants

Air contains what percentage of oxygen?

21%

Common types of oxygen analyzers are ?

Paramagnetic, thermaparamagnetic, electrochemical, zirconium

Air contains what percentage of nitrogen?

78%

A zirconium oxide oxygen analyzer need to operate at temperatures above about what temperature?

1000 F

What are the 2 designs of an opacity analyzer?

Single pass, Dual pass

What is a common application for an opacity analyzer?

Measures the amount of particular matter in a flue stack

What is another name for humidity ratio?

Absolute humidity

What are 2 common types of psychrometers?

Recording, sling

What instruments have mostly replaced the sling psychrometer because they provide a direct readout in readout in relative humidity values?

Hygrometer, Thermohygrometer

What forms when air cools below the dewpoint?

Clouds

The primary element for an electrical hygrometer is what?

Capacitance probe

In many industrial processes, what is more significant than relative humidity?

Dewpoint temperature

Air dryers are manufactured to keep the dewpoint of instrument air at what temperature?

-40

Define Humidity

Amount of water vapor in a given amount of air or other gas

_ is the temperature to which air must be cooled for the air to saturated with the water and any further cooling result in water condensing out

Dew point

A _ graphically combined the properties of most air at standard atmospheric pressure (14.7 psi) into one graph

Psychometric Chart

A _ is a humidity analyzer that uses two thermometers with the bulb of one kept dry, and the bulb if the other one kept wet.

Psychrometer

A _ is a psychrometer consisting of a wet and dry bulb thermometer connected to a recorder

Recording psychrometer

A _ is a psychrometer consisting of two glass thermometers attached to a assembly that permits the two thermometers to be rotated through the air.

Sling Psychrometer

A _ is a humidity analyzer that measures the physical or electrical changes that occur in various materials as they observe or release moisture

Hygrometer

A _ is a material that readily absorbs and retains moisture with the increases in humidity and releases moisture with decreases in humidity

Hygroscopic materials