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SOP > Definitions > Flashcards

Definitions Flashcards

1
Q

Mission

A

Leverage global talent and resources to provide cutting edge, accurate, timely, and cost-effective testing services to our businesses worldwide

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2
Q

Overview

A

designed to simulate the usage of air cleaners on both automotive and industrial applications

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3
Q

ABP

A

interface for technicians to perform testing on a given test station.

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4
Q

Active Scavenge

A

use of a scavenge airflow to assist in removing larger particles before they reach the primary element. Generally, entails the use of a scavenge can attached to a pump on one side and a vaccuator valve or precleaner on the other side

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5
Q

Air Floated Feeder

A

Dust feeder that fills tubes with a contaminate and pressurized air is introduced to the tube to disperse the test contaminate.

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6
Q

Air Hose

A

rubber or synthetic pressure hose used to supply air to a pneumatic device. commonly used to supply air to dust feeders and vibrator

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7
Q

Air Line

A

a plastic tube used to supply air to the deflocculator or vibrator

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8
Q

Boot

A

a section of rubber tubing used to connect sections of ductwork (transitions) to each other and to the unit under test. usually employed together with hose clamps

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9
Q

capacity

A

quantity of contaminant captured by the unit under test in producing specified terminal conditions

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10
Q

Cavitation

A

rapid formation and collapse of vapour pockets in a flowing liquid in regions of very low pressure, a frequent cause of structural damage to propellers, pumps. Also refers to such a pocket formed in flowing liquid

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11
Q

Concentration/Visibility

A

amount of dust fed to the air flow

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12
Q

Deflocculator

A

device that utilizes compressed air to inject test dust into the test system

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13
Q

Differential Pressure

A

measurement of the difference in static pressure between two areas of equal size

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14
Q

Dust Feeder

A

a computer-controlled system that runs an auger to feed test dust at a specified rate. Utilizes a calibrated scale to constantly measure the amount of dust being fed and adjust the feedrate accordingly.

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15
Q

Dust Feeder Auger

A

transport test dust from the feeder itself to the funnel. Uses a rotating helical screw blade called a “flighting” to act as a screw conveyor to remove the test dust from the feeder.

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16
Q

Dust Feeder Characterization

A

a programmable computer file that is used to control the rotational speed of the dust feeder auger and paddle. Ideally, provides a means to automatically reach a feedrate set-point with the least amount of error

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17
Q

Dust Jar/ Passive Scavenge

A

a container attached to a vaccuation valve or precleaner that is used to collect separated dust.

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18
Q

Dust Lot

A

a method of identification for test dust used in the Engine Air Lab

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19
Q

Efficiency

A

ability of the air cleaner or the unit under test to capture contaminant under specified test conditions

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20
Q

Element

A

removable filter portion of the unit under test

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21
Q

Engineering Test

A

this can be whatever the customer or requestor wants to know or do

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22
Q

Face Velocity

A

linear velocity of air striking the face of an element or unit under test

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23
Q

Filter Element

A

replaceable part of the air filter, consisting of the filter material and carrying frame.

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24
Q

Fixed Restriction Device (FRD)

A

a specifically-calibrated piezometer with an orifice plate that is used to calibrate test stations and track any changes in station characteristics through differential pressure (dP) measurements.

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25
Q

Flow Range

A

the range of volumetric flow rates that the unit under test is to be tested under.

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26
Q

Flow Stability

A

a measure of the variation in flow rate around the set point. A test will be prevented from running if the flow stability is not within a certain range as specified by ISO 5011

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27
Q

Gen3 Dust Feeder

A

software responsible for controlling the dust feeder. Receives commands from settings entered into the ABP test program.

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28
Q

Grounding Wire

A

metal wire used to eliminate or reduce static electrical charge on the unit under test and dust feeder assembly

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29
Q

Hoffman Pumps

A

There are two 250 horse power pumps for high flow capabilities ranging from 4000-22000 cfm

30
Q

Hose clamps

A

devices used to secure one testing component to another. Usually used to attach piezometers to air cleaner housings and other ductwork.

31
Q

Hysteresis

A

phenomenon in which the value of a physical property lags behind changes in the effect causing it, as for instance when measuring a pressure reading while your airflow is increasing to a set value vs. when the airflow is decreasing to a set value. While the set value will be the same, the pressure reading will differ slightly.

32
Q

Ideal Inlet

A

a shaped inlet device that smoothes the flow

33
Q

Industrial Application

A

a term used to reference an air cleaner generally used for internal combustion engines in heavy-duty trucks, construction equipment and agricultural tractors

34
Q

Initial Efficiency

A

the amount of dust a new filter lets past in the early stages of dust loading classified under the Automotive or Industrial specification

35
Q

Automotive Initial Efficiency

A

20 grams of contaminant or the number of grams numerically equivalent to 6 times the air flow in CMM, whichever is greater. Accomplished by time base rather than mass.

36
Q

Industrial Initial Efficiency

A

a quantity equal to 11 g/m^2 of the primary element media area to be fed at a constant rate over a 30-minute period

37
Q

ISO 5011

A

Industry guidelines and normative specifications for automotive and industrial applications. A guide to follow for uniformity between tests conducted in different labs.

38
Q

Leak Cart

A

Vacuum cart used to measure leak rates

39
Q

LIMS

A

Online software used to manage, track, and assign test requests to individual test stations.

40
Q

Manometer

A

Hand held pressure measuring instrument

41
Q

Media

A

type of material used to compose the body of the filter element, this is what captures the contaminant

42
Q

Operator Alarm

A

a notification displayed by the ABP program to alert the operator about an issue requiring attention

43
Q

Particle Size Distribution

A

a list of values or a mathematical function that defines the relative amount, typically by mass, of particles present according to size

44
Q

PD Blower

A

Positive Displacement gear pump for high static capabilities

45
Q

Piezometer

A

a standard-diameter circular pipe used to determine pressure values through the use of a series of ports arranged circumferentially and spaced evenly around a vertical cross-section of the pipe.

46
Q

Pressure Loss

A

differential pressure measurement with unequal inlet and outlet diameters is a static pressure measurement between two points and is used to isolate the specific effect of a component in the system.

47
Q

Pressure Range

A

range of pressure values that a pressure point reading covers during a test

48
Q

Pressure Regulator

A

device used to control the amount of pressure supplied to another device, such as a vibrator or deflocculator

49
Q

Rated Air Flow

A

flow rate specified by the user or manufacturer

50
Q

Relative Humidity

A

mass of water vapor present in air expressed as a percentage of the mass that would be present in an equal volume of saturated air at the same temperature. Used to quantify and maintain lab. conditions

51
Q

Restriction

A

Measurement of static pressure at a single point

52
Q

Rise Over Initial (ROI)

A

Terminal pressure measurement condition defined by the pressure increase above the initial restriction

53
Q

RS-232 connector

A

type of connector currently sued for communication between the dust feeders and flow bench computers. Specifically, it is the traditional name for a series of standards for serial binary single0ended data and control signals connecting between DTE and DCE

54
Q

Sampling Rate

A

Number of samples per unit time taken from a continuous signal to obtain a discrete signal or a set of discrete data points.

55
Q

Scavenge Air Flow

A

measure of the quantity of air used to remove the collected dust from a precleaner

56
Q

Scavenge Can

A

device used in active scavenge applications to collect contaminate from the scavenged airflow before it reaches the scavenge pump

57
Q

Separator

A

Device usually using inertial or centrifugal means to remove a portion of the test dust prior to reaching the filter element

58
Q

Separator Efficiency

A

percentage of dust fed that is removed by the separator from the unit under test before it reaches the primary and/or secondary element

59
Q

Static Pressure

A

pressure in a duct, at the observed air flow rate, measured by connecting a pressure gauge to a hole or holes drilled in the wall of the duct

60
Q

Terminal Condition (1)

A

restriction or differential pressure reaches a specified or agreed value

61
Q

Terminal Condition (2)

A

dust-removing efficiency or some other performance parameter falls to a specified or agreed value

62
Q

Test Air Flow

A

measure of the quantity of air drawn through the air cleaner outlet per unit time

63
Q

Total Efficiency

A

measure of how much contaminate gets past the unit under test. The total dust fed minus the absolute gain divided by the total dust fed.

64
Q

Transducer

A

differential pressure sensor that measures air pressure at specified points in the test system and generates an electronic signal as a function of the pressure imposed

65
Q

Transition

A

ductwork component used to attach a ductwork section of one size to a section of a different size

66
Q

UV light

A

used to examine elements for leak paths after Visolite is fed at the rated air flow

67
Q

Vaccuation Valve

A

valve attached to an air cleaner housing or precleaner that allows for removal or “vaccuation” of dust from the housing

68
Q

V-Cone Flow Meter

A

device used to measure flow rates in the Main Flow bench of the Engine Air Lab installed between the test station and the pump

69
Q

Variable Frequency Drive

A

adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage. Used to control the air lab pumps

70
Q

Vibrator

A

device usually attached to a dust line or dust jar and used to assist in moving dust to its desired location

SOP (2 decks)

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