Volumetric flow rate

About: Volumetric flow rate is a research topic. Over the lifetime, 15980 publications have been published within this topic receiving 195176 citations. The topic is also known as: rate of fluid flow & volume velocity.

Bubble flow discharging apparatus

Abstract: PROBLEM TO BE SOLVED: To provide a bubble flow discharging apparatus which discharges bubbles at a flow rate of 20 to 30 L/min, wherein deflection of a streamline caused by the intensity of flow in a flow passage is prevented SOLUTION: In a turbulence damping grid for rectifying the bubble flow, an opening of the turbulence damping grid, which the bubble flow passes is condensed or blocked at its center, so that a bubble flow component toward the center, which is intense in momentum out of bubble flow components flowing from a taper portion, is diffused, to thereby unify the momentum of the flow of the entire turbulence damping grid In this manner, the deflection of the bubble flow due to the intensity of the momentum of the flow can be prevented

Method and apparatus for controlling gas turbine when gas turbine is started

Abstract: A method for controlling a gas turbine when the gas turbine is started may include measuring the number of rotations of the gas turbine, determining a target acceleration rate based on the number of rotations of the gas turbine, measuring a current acceleration rate, determining a flow rate of fuel based on a difference between the current acceleration rate and the target acceleration rate, and supplying fuel to the gas turbine at the determined flow rate. The flow rate of the fuel may be determined between a maximum flow rate of the fuel that has been previously stored and a minimum flow rate of the fuel. A temperature of the exhaust gas after controlling the flow rate of the fuel may be monitored.

Pump equipped with flow rate measurement function, and ballast water treatment device using same

Abstract: The flow rate of a pump, which is installed in a small space, is measured with good accuracy. A pump equipped with a flow rate measurement function comprises: a pump which has a first pressure outlet located on the downstream side of a suction-side flange and which also has a second pressure outlet located on the upstream side of a discharge-side flange; first and second pressure sensors respectively disposed at the first and second pressure outlets; a memory section which previously stores flow rate characteristics representing the relationship between a flow rate and the difference between the pressures detected by the first and second pressure sensors; a calculation section which calculates the difference between the pressures obtained from the first and second pressure sensors; and a computation section which computes a flow rate from the calculated difference and from the flow rate characteristics.

Gas combustion apparatus

Abstract: PROBLEM TO BE SOLVED: To provide a gas combustion apparatus capable of adjusting a gas flow rate to multiple steps with motor driving. SOLUTION: There are provided flow rate control means 28 driven by a motor such that the amount of supply of gas supplied to a burner 1 is controlled, reating power setting means for selecting heating power from a plurality of heating powers previously set to an instrument, and central control means 25 for controlling the flow rate control means 28 such that fire of the burner 1 becomes set heating power set by the heating power setting means. The flow rate control means 28 includes a flow rate adjustment section for adjusting a flow rate and closing means for opening and closing a gas passage. The low rate adjustment section is slindably moved to vary the flow rate, and further minimum flow rate gas is supplied from an independent flow rate restriction hole.

Procedure for the renovation of a combined vertical furnace and gas separation unit, the fluid supply to the furnace being pure or air-diluted oxygen

Abstract: Process for renovation of a vertical furnace supplied with an oxidising fluid partially supplied by a gas separation from air(ASU) ; more than 50% of the flow from the blower supplying the furnace is injected in a cryogenic separation unit to produce oxygen of purity greater than 90%.The air flow from the blower and/or air pressure are controlled by a regulator which measures the flow rate or pressure of the air at the entry and/or exit of the air purifier upstream of the ASU.The supply fluid to the furnace is pure oxygen or oxygen diluted with air from the cryogenic unit.