Aerodynamic diameter definition

Aerodynamic diameter means the theoretical diameter of a nonspherical particle having the same terminal settling velocity as an equally dense, spherical particle of such diameter.
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Aerodynamic diameter means the diameter of a sphere of unit density which behaves aerodynamically the same as the particle of the test substance. It is used to predict where particles of different size and density may be deposited in the respiratory tract.
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Examples of Aerodynamic diameter in a sentence

  • Aerodynamic diameter depends on particle density and is defined as the diameter of a particle with the same settling velocity as spherical particle with unit density i.e. 1 g/cm3 (USEPA, 1996).

  • Other typical flare operating criteria include the following: • Reactive Organic Gas (ROG).• Exit Gas Temperature.‌• Nitrogen Oxides (NOx).• Residence Time.• Sulfur Oxides (SOx) .• Carbon Monoxide (CO).• PM10 (Particulate Matter of Aerodynamic diameter smaller than or equal to a nominal 10 microns).

  • Appendix 4 illustrates the historical movements of the CPI and MTAWE, as observed by the Jess Committee in its 1972 report and the statistics published by the Australian Bureau of Statistics (ABS).Table 1 summarizes the movement of the CPI relative to the MTAWE index.

  • Aerodynamic diameter was used for the cut-off diameter of PM2.5 and PM10 in the model.

  • Aerodynamic diameter (Da) compares the terminal falling speed of the particle under consideration with a spherical particle that has a density of 1 gcm-3 (Finlayson–Pitts and Pitts, 1999).

  • Aerodynamic diameter is of interest for removal rates and when particle drag is significant as in wind tunnel simulations.

  • Aerodynamic diameter decreases with increasing dynamic shape factor.

  • Aerodynamic diameter means the diameter of a spherical water droplet that settles at the same constant velocity as the particle being sampled.

  • Use of the Aerosol Management System was critical to contain aerosols produced during a partial nozzle obstructionTMFlow Cytometers Produce Aerosols TMAerodynamic Diameter (size) and InfectivityAerosols around 1-3 µm:▪ Remain airborne almost indefinitely*▪ More likely to deposit in lung alveoli▪ Associated with increased infectivity of some organismsAD range associated with infection (~1-3 µm) Aerodynamic diameter (µm)*Knight, 1980.

  • Number concentrations (Particles/cm3)50 40 30 20 10 0Garage AGarage BGarage TypeGarage CNumber Concentration (particles/cm3) x 103Mass size distributions Garage A Garage B Garage CMass concentrations dM/dlogDp [mg/m³]0,1 0,08 0,06 0,04 0,02 0 0,01 0,1 1 Aerodynamic diameter (Dp), µm Fig.

Related to Aerodynamic diameter

  • Diameter means the diameter of the stem of a tree measured outside the bark at a specified point of measurement.

  • Anaerobic digester means a liquid manure storage area that is constructed with the intent to capture and combust gas emissions resulting from the digestion of waste by microbes in anaerobic conditions. An anaerobic digester is a LMSA and is required to comply with all requirements applicable to LMSAs. Requirements specific to anaerobic digesters will be noted when applicable.

  • Flash point means the lowest temperature of a liquid at which its vapours form a flammable mixture with air;

  • Anaerobic digestion ’ means a controlled process involving microbial decomposition of organic matter in the absence of oxygen ;

  • Beam axis means a line from the source through the centers of the x-ray fields.

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which (1) a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and (2) while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Fiber means a glass strand or strands which is/are protected by a color coded buffer tube and which is/are used to transmit a communication signal along the glass strand in the form of pulses of light.

  • high voltage means the classification of an electric component or circuit, if its working voltage is > 60 V and ≤ 1500 V DC or > 30 V and ≤ 1000 V AC root mean square (rms).

  • JetBrains or “We” means JetBrains s.r.o., having its principal place of business at Xx Xxxxxxxxx XX 0000/00, Xxxxxx, 00000, Xxxxx Xxxxxxxx, registered in the Commercial Register maintained by the Xxxxxxxxx Xxxxx xx Xxxxxx, Xxxxxxx X, Xxxx 00000, ID. No.: 265 02 275.

  • Sensor means any measurement device that is not part of the vehicle itself but installed to determine parameters other than the concentration of gaseous and particle pollutants and the exhaust mass flow.

  • Diameter at Breast Height (DBH) means the diameter of a tree at 4 1/2 feet above the ground measured from the uphill side.

  • Pitch means a Grass Pitch or Football Turf Pitch.

  • Tare Weight means the weight of an empty shipping container, excluding all materials used for wrapping, cushioning, banding, waterproofing, packaging, blocking and bracing articles within the exterior container.

  • interval meter means a meter that measures and records electricity use on an hourly or sub-hourly basis;

  • Hydraulic fracturing means the fracturing of underground rock formations, including shale and non-shale formations, by manmade fluid-driven techniques for the purpose of stimulating oil, natural gas, or other subsurface hydrocarbon production.

  • Thermostat means a temperature control device that contains metallic mercury in an ampule attached to a bimetal sensing element, and mercury-containing ampules that have been removed from these temperature control devices in compliance with the requirements of § 273.13(c)(2) or 273.33(c)(2).

  • X-ray high-voltage generator means a device which transforms electrical energy from the potential supplied by the x-ray control to the tube operating potential. The device may also include means for transforming alternating current to direct current, filament transformers for the x-ray tube(s), high-voltage switches, electrical protective devices, and other appropriate elements.

  • Behind The Meter Generation shall refer to a generation unit that delivers energy to load without using the Transmission System or any distribution facilities (unless the entity that owns or leases the distribution facilities has consented to such use of the distribution facilities and such consent has been demonstrated to the satisfaction of the Office of the Interconnection); provided, however, that Behind The Meter Generation does not include (i) at any time, any portion of such generating unit’s capacity that is designated as a Generation Capacity Resource; or (ii) in an hour, any portion of the output of such generating unit that is sold to another entity for consumption at another electrical location or into the PJM Interchange Energy Market.

  • Pump spray means a packaging system in which the product ingredients within the container are not under pressure and in which the product is expelled only while a pumping action is applied to a button, trigger or other actuator.

  • voltage means the root-mean-square value of electrical potential between two conductors.

  • medium voltage means the set of nominal voltage levels that lie above low voltage and below high voltage in the range of 1 kV < Un 44 kV. [SANS 1019]

  • PNode has the meaning set forth in the CAISO Tariff.

  • Digital Signal Level 0 (DS-0 means the lowest-level signal in the time division multiplex digital hierarchy, and represents a voice-grade channel operating at either the 56 Kbps or 64 Kbps transmission bit rates. There are twenty-four (24) DS-0 channels in a DS-1.

  • Nitrogen oxides means nitric oxide and nitrogen dioxide, expressed as nitrogen dioxide (NO2);

  • Sub-meter means a metering point for electricity consumption that does not include all electricity consumption for the end-use customer as defined by the electric distribution company account number. PJM shall only accept sub-meter load data from end-use customers for measurement and verification of Regulation service as set forth in the Economic Load Response rules and PJM Manuals.

  • High voltage bus means the electrical circuit, including the coupling system for charging the REESS, that operates on a high voltage.