2 edition of **Development of a gas-solid flow measurement system using an extended-throat venturimeter** found in the catalog.

Development of a gas-solid flow measurement system using an extended-throat venturimeter

Chris L. Wiltz

- 256 Want to read
- 37 Currently reading

Published
**1991**
.

Written in English

- Flow meters.

**Edition Notes**

Other titles | Development of a gas solid flow measurement system using an extended throat venturimeter. |

Statement | by Chris L. Wiltz. |

The Physical Object | |
---|---|

Pagination | xviii, 141 leaves, bound : |

Number of Pages | 141 |

ID Numbers | |

Open Library | OL16902117M |

Flow meter is an instrument used for the measurement of the amount of liquid, gas or vapor that passes through them. In some flow meter the flow is measured as the amount of fluid passing through the flow meter during a time period (such as liters per minute) whereas other flow meters measure the totalized amount of fluid that has passed through the flow meter (such as liters). It uses Bernoulli’s principle, exchanging the potential energy of “pressure”, for the kinetic energy of “fluid velocity’. And it does so with much less total pressure loss from outlet to inlet, than does an orifice. So a venturi provides a high-sp.

The venturi meter device measures the flow rate or velocity of a fluid through a pipe. The equation is based on the Bernoulli equation, conservation of energy, and the continuity equation. Solving For Flow Rate. Inputs: Area 1. The combination of a venturi differential pressure flowmeter and a density gauge also provides the mass flow rate of liquids in two-phase (liquid/ gas) pipe flow (See Figure ). The venturimeter is a differential pressure meter and if d/D.

Students measure flow using a Venturi meter, an orifice plate meter and a rotameter. Bernoulli’s equation works for each meter. Students find and compare the head losses for each meter. They also find the losses in a rapid enlargement and a degree elbow. The apparatus is for use with TecQuipment’s Hydraulic Bench (H1F, available separately). In order to measure the flow with a Venturimeter, it is installed in. A. Horizontal line. B. Inclined line with flow upwards. C. Inclined line with flow downwards. D. Any direction and in any location. Answer: Option D.

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Venturimeter is the most widely used device to measure the discharge through the pipe. A venturi is a converging-Diverging nozzle of circular cross-section. The principle of venturimeter is that when a fluid flows through the venturimeter, it accelerates in the convergent section and decelerates in the divergent section, resulting in a drop in.

development of extended-throat venturimeter for on-line measurement of gas-solid flow. printer-friendly version. award information. agency: further experiments and analysis have shown that the extended-throat venturimeter will be capable of measuring flow rates for both the solids and gas phases without requiring particle size information.

This paper presents the use of a venturi and a void fraction meter for the measurement of refrigerant Ra liquid-vapor mass flow rate and quality in vertical pipes.

Measuring a single-phase. FM - Flow Measurement by Venturi and Orifice meter Objectives: 1. To find the coefficient of discharge for venturi meter. To find the coefficient of discharge for orifice meter. Theory: Venturi meter and orifice meter are the commonly used flow meters for measuring mass/volumetric flow rate or velocity of the flowing fluid.

Venturi Meter are used to measure the velocity of flow of fluids in a pipe. They consist of a short length of pipe shaped like a vena contracta, or the portion with the least cross-sectional area, which fits into a normal pipe-line. The obstruction caused to the flow of liquid at the throat of the venturi produces a local pressure drop in the.

Where Cd is the coefficient of venturimeter and its value is less than 1. The venturi flow meter should always be used for turbulent flow. Its accuracy Development of a gas-solid flow measurement system using an extended-throat venturimeter book a wide range of instruments is about %.

ideal for use in Heat Ventilation Air Cond. (HVAC) applications, or air to furnaces and boilers and for liquids containing particles and slurries. The measured alteration is then related to the flow. The subject of this experiment is to.

analyze the features of certain meters. THEORY. Figure 1. Flow measurement apparatus The flow measurement apparatus consists of a water loop as shown above figure.

The supple line is connected to a gravimetric hydraulic bench. The flow rate. the smallest diameter. Venturimeter is used to measure the rate of flow through a pipe.

Venturimeter consists of a converging portion, throat and a diverging portion. The function of the converging portion is to increase the velocity of the fluid and temporarily lower its static pressure.

The pressure difference between inlet and throat is. Fluids Flow Engineering Hydraulic & Pneumatic Design Engineering Fluid Flow Design and Engineering.

Venturi Flow Equation and Calculator. A Venturi meter is used to measure the flow rate through a tube or volumetric flow rate, Q. A venturi tube can also be used to mix a liquid with a gas and siphon into the venturi flow.

When a venturi flow meter is placed in a pipe carrying the fluid whose flow rate is to be measured, a pressure drop occurs between the entrance and throat of the venturi meter. This pressure drop is measured using a differential pressure sensor and when calibrated this pressure drop becomes a measure of flow rate.

1. Introduction. Flowrate measurement of gas–liquid two-phase flow is of great importance in many industries such as chemical, petroleum, energy, and power engineering.Although significant progress has been made in developing methods for two-phase flow measurement, many issues remain to be resolved because of the inherent complexity of two-phase flow.

Experiment (4): Flow measurement Introduction: The flow measuring apparatus is used to familiarize the students with typical methods of flow measurement of an incompressible fluid and, at the same time demonstrate applications of the Bernoulli's equation.

The flow is determined using a sudden enlargement, venturi meter, orifice plate, elbow and. The fluid whose flow rate is to be measured enters the entry section of the venturi meter with a pressure P1.

As the fluid from the entry section of the venturi meter flows into the converging section, its pressure keeps on reducing and attains a minimum value P2 when it enters the throat.

In this paper, a novel approach is presented to the measurement of wet gas flows using a Venturi meter and neural network technique. Results obtained on a laboratory test rig suggest that the flowrate of wet gas flowing in a throat-extended Venturi meter is related to the characteristic features of the differential pressures across the converging section and the extended throat section, the.

A PC-based approach to the natural gas flow computer design is presented in this paper11Research project sponsored by FAPESP under process Nr. 98/ ‘Development of a flow measurement. Common measurement applications. Flowmeters are used to measure the flowrate of air or other gases, as well as totalized flow.

Due to the hazardous operating environments that may be encountered in CPI plants, gas flowmeters generally require approvals for hazardous areas (for instance, HazEx) and often must be compliant with the IEC / (SIL) standard as part of a Safety Instrumented. a 1, a 2 = Area of cross-section at inlet and throat g = Acceleration due to gravity h = Pressure head difference C d = Coefficient of discharge Read: Conversion of manometric deflection to Pressure head difference Applications of venturi meter Venturi used in a wide variety of applications that includes gas, liquids, slurries, suspended oils and other processes where permanent pressure loss.

Labview software, to measure flow rate, velocity profiles, and friction factors in smooth and rough pipes, determining measurement uncertainties, and comparing results with benchmark data.

Additionally, this laboratory will provide an introduction to PIV analysis, using an ePIV system with a step-up model. Experimental Design. Venturimeter are used to measure the velocity of flow of fluids in a pipe. They consist of short length of pipe shaped like vena contracta, or the portion with the least cross- sectional area, which fits into a normal pipeline.

The obstruction caused to the flow of liquid at the throat of the venturi produces a local pressure drop in the. Calculate the flowrate measured by a venturi-style flowmeter. Solving for the upstream velocity V a and multiplying by the cross-sectional area A a gives the volumetric flowrate Q: Ideal, inviscid fluids would obey the above equation.

The small amounts of energy converted into heat within viscous boundary layers tend to lower the actual velocity of real fluids somewhat. measurement of flow for different area of venturi nozzle is discussed. In [3] Calibration of flow meter is done with the help of microcontrollers. In [4] & [11], a simulation model of venturi flow meter for measurement of flow rate is discussed.

In [5], [7], [8], [10] & [12], linearization of venturi is discussed using neural network algorithms.CHAPTER 3 SOURCES OF TROUBLE FOR FLOW METERS SOURCES OF TROUBLE FOR FLOW METERS PART 2.

The importance of understanding the cause of problems and taking appropriate measures. This section includes a summary of the causes of problems that tend to occur during flow lling flow requires constant flow monitoring and accurate measurement of flow rates.venturimeter, the desired flow in supply and calibration line is achieved by control valves in supply line, calibration line and pump bypass line [4].

Readings taken are time taken for mm rise in water level in the measuring tank and the manometric head indicated by the differential manometer. Readings are taken for three different values of.