Cubic foot per minute

Cubic centimeter per second cubic foot per minute 0.002 118 88... 

The MultiMode combustor (MMC) comes in two sizes. The MMC-5 unit consists of a 100-standard cubic foot per minute (scfm) thermal oxidizer and a 100-scfm catalytic oxidizer. The MMC-6 unit consists of a 150-scfm thermal oxidizer and a 200-scfm catalytic oxidizer. 

In 1994, the National Renewable Energy Laboratory [NREL, a national laboratory of the U.S. Department of Energy (DOE)] performed a cost comparison of PCO versus other air pollution control technologies. It was determined from this study that the cost per standard cubic foot per minute (scfm) increased with contaminant concentration but fluctuated little with fiow rate. For treatment of VOC concentrations above 1000 parts per million (ppm), the PCO systems became expensive relative to other technologies (D130905, p. 3). 

A major opportunity for savings is to reduce the flow of diluent or carrier gas (often air or nitrogen) at the source. For a gas stream containing both particulates and halogenated volatile organic compounds (VOCs), the minimum capital investment to abate this stream is about 75 per standard cubic foot per minute (scfm) of waste gas flow. 

Volumetric flow rate Liter per second Liter per minute Cubic meter per minute Cubic meter per hour Cubic foot per second Cubic foot per hour Cubic foot per minute Barrel (US) per day Gallon (US) per minute Gallon (UK) per minute... 

Cubic foot per minute Cubic foot per second Cubic inch... 

Apparatus. A Welsbach ozonator, Model T-25, produced an oxidizing mixture of ozone (2%) and oxygen (98%). The rate of flow was kept constant at 0.025 cubic foot per minute. The polymer films, effective thickness 0.002 to 0.006 inch, were used free or directly on the rock salt plates on which they were cast. The reaction vessel containing the films was kept in a constant temperature bath. The ozone mixture was preheated to approximately the temperature of the bath by passing through a spiral tube immersed in the same bath prior to entering the reaction vessel. 

Ozonization. The ozone was generated from oxygen using the Welsbach T-23 ozonator. The oxygen flow through the ozonator was 0.10 cubic foot per minute. The ozone concentration was about 40 mg. per liter. 

CBOT Chicago Board of Trade cfm cubic foot per minute... 

Figure 33.13 shows an example of the estimated coohng airflow requirements necessary to hmit the stack air temperature rise to 175 °C as a function of cell voltage and FU at a current density of 0.7 A cm for a 5 kW SOFC system [8]. It can be seen that in this case, suitable operating points are those below the air blower upper hmit of 60 scfm (standard cubic foot per minute). 

Reporting is required for facilities that emit GHGs of 25,000 metric tons or more of C02e per year (approximately equal to 170,000 standard cubic foot per day of vented methane, 65 100-HP engines operating at full load, or one 900 standard cubic foot per minute flare). 

Mechanical exhaust ventilation shall be provided in storage rooms at the rate of not less than one (1) cubic foot per minute per square foot of floor area or six (6) air changes per hour. 

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