Gerald J Morrison

US Patent:

6345536, Feb 12, 2002

Filed:

Sep 10, 1998

Appl. No.:

09/151253

Inventors:

Gerald L. Morrison - College Station TX
James C. Holste - Bryan TX
Kenneth R. Hall - College Station TX

Assignee:

The Texas AM University System - College Station TX

International Classification:

G01F 174

US Classification:

7386104

Abstract:

This invention is related to flow meter instrumentation. More particularly, the invention is related to obstruction flow meters which are used in series in a flow conduit to determine the volume flow rate of liquid and gas phases of fluid flowing within the conduit. Multiple flow meters including at least one obstruction type flow meter are positioned serially within a flow conduit such as a pipe. Mathematical equations are developed for each flow meter based upon measured quantities and phase flow rates within the liquid stream. These equations are then solved simultaneously to obtain the desired phase flow rates. Two flow meters are used to determine the gas and liquid flow rates. Alternately three flow meters are used to determine the flow rates of a gas and two liquid phases.

US Patent:

6422092, Jul 23, 2002

Filed:

Sep 10, 1999

Appl. No.:

09/393715

Inventors:

Gerald L. Morrison - College Station TX
James C. Holste - Bryan TX
Kenneth R. Hall - College Station TX

Assignee:

The Texas AM University System - College Station TX

International Classification:

G01F 1712

US Classification:

7386104

Abstract:

This invention is related to flow meter instrumentation. More particularly, the invention is related to obstruction flow meters which are used in series in a flow conduit to determine the volume flow rate of liquid and gas phases of fluid flowing within the conduit. Multiple flow meters including at least one obstruction type flow meter are positioned serially within a flow conduit such as a pipe. Mathematical equations are developed for each flow meter based upon measured quantities and phase flow rates within the liquid stream. These equations are then solved simultaneously to obtain the desired phase flow rates. Two flow meters are used to determine the gas and liquid flow rates. Alternately three flow meters are used to determine the flow rates of a gas and two liquid phases.

US Patent:

6681189, Jan 20, 2004

Filed:

Aug 22, 2001

Appl. No.:

09/938025

Inventors:

Gerald L. Morrison - College Station TX
Kenneth R. Hall - College Station TX

Assignee:

The Texas AM University System - College System TX

International Classification:

G01F 100

US Classification:

702 45, 702100, 7386161, 7386163

Abstract:

According to one embodiment of the invention, a computerized method for determining a flow rate of a fluid flowing through a conduit having an obstruction flow meter includes receiving a ratio value indicative of a ratio of the obstruction flow meter, receiving a pressure differential value indicative of a pressure differential across the obstruction flow meter, receiving a density value indicative of a density of the fluid, receiving a discharge coefficient formula for the obstruction flow meter, the discharge coefficient formula being a function of the ratio of the obstruction flow meter and an Euler number for the fluid flowing through the conduit, and determining, by the computer, the flow rate based on the received ratio value, the received pressure differential value, the received density value, and the received discharge coefficient formula. The determined flow rate may either be the volumetric flow rate or the mass flow rate. Alternatively, the density of the fluid may be determined by providing the flow rate of the fluid, the ratio of the obstruction flow meter, the pressure differential value, and the discharge coefficient formula.

US Patent:

54619327, Oct 31, 1995

Filed:

Jan 26, 1994

Appl. No.:

8/188050

Inventors:

Kenneth R. Hall - College Station TX
Gerald L. Morrison - College Station TX
James C. Holste - Bryan TX

Assignee:

Texas A & M University System - College Station TX

International Classification:

G01F 142
F15D 102

US Classification:

7386161

Abstract:

A flow impedance device is provided for an obstruction flowmeter for determining the flow rate of a compressible or incompressible fluid in a conduit. The flowmeter preferably includes means for measuring the temperature and pressure of the fluid as well as the pressure differential across the flow impedance device along with further means for computing a flow rate from the measured pressures. The flow impedance device may include a plate having a plurality of elongated openings arranged in a predetermined pattern. The plate is installed generally transverse to fluid flow in the conduit to force the fluid to flow through the plurality of elongated openings.

US Patent:

52953971, Mar 22, 1994

Filed:

Jul 15, 1991

Appl. No.:

7/729934

Inventors:

Kenneth R. Hall - College Station TX
Gerald L. Morrison - College Station TX
James C. Holste - Bryan TX

Assignee:

The Texas A & M University System - College Station TX

International Classification:

G01F 142
G01F 1502

US Classification:

7386102

Abstract:

A flow impedance device is provided for an obstruction flowmeter for determining the flow rate of a compressible or incompressible fluid in a conduit. The flowmeter has means for measuring the temperature and pressure of the fluid as well as the pressure differential across the flow impedance device, and further means for computing a flow rate from the measured pressures. The flow impedance device includes a plate having a plurality of elongated openings arranged in a predetermined pattern. The plate is installed generally transversely in the conduit to force the fluid to flow through the plurality of elongated openings.

US Patent:

60558466, May 2, 2000

Filed:

Mar 20, 1997

Appl. No.:

8/822596

Inventors:

Kenneth R. Hall - College Station TX
Gerald L. Morrison - College Station TX
James C. Holste - Bryan TX

Assignee:

The Texas A&M University System - College Station TX

International Classification:

G01R 2726

US Classification:

73 2405

Abstract:

The focus of this paper is to introduce a novel method for calibrating natural gas flowmeters. This new method can accommodate very large flow rates and it avoids common problems associated with current techniques for meter proving. In this method, the amount of gas accumulated in a vessel of fixed volume is determined by measuring the change in capacitance of the vessel with respect to time. Because the accumulator has a fixed volume the problems inherent with the mechanical motions involved in volumetric provers such as bell provers, piston provers and ball provers are eliminated. Accurate measurements can also be made in larger vessels than would be feasible for gravimetric provers, especially for in situ calibrations. Along with avoiding the fundamental problems associated with current provers, initial studies indicate that accuracies of. +-. 1% are possible, even for flow rates in large pipelines.

US Patent:

20210324869, Oct 21, 2021

Filed:

Aug 26, 2019

Appl. No.:

17/271066

Inventors:

- College Station TX, US
Gerald Morrison - College Station TX, US
Adolfo Delgado - College Station TX, US

International Classification:

F04D 29/22
F04D 29/041
F04D 29/051
F04D 13/08
F04D 7/02

Abstract:

A turbomachine includes a housing having an inlet and an outlet. A shaft is rotationally disposed in the housing. The shaft is rotatable about a longitudinal axis. An impeller is coupled to the shaft between the inlet and the outlet and rotates with the shaft. The impeller includes a single impeller inlet and an impeller outlet, a first set of vanes disposed on a first side of the impeller, and a second set of vanes disposed on a second side of the impeller. A passage is formed through a thickness of the impeller. The passage facilitates transmission of fluid from the first side of the impeller to the second side of the impeller such that fluid is supplied to the first set of vanes and the second set of vanes via the single impeller inlet. Transmission of fluid through the impeller reduces net axial thrust imparted to at least one of the impeller and the shaft.