PROPOSAL FLEXIM Ultrasonic Flowmeter Clamp-on Type Liquid Measurement

Attention:

PLTD BANGKA

PREPARED BY : PT PAP SAIYO

Table of Contents

1. Introduction

1.1 Flexim Flow Technology

2. Ultrasonic Flowmeter Measuring Principle

2.1 Measuring Principle

2.2 Sound Paths and Installation Mode

2.3 Selection of the measuring point

2.3.1 Acoustic Penetration

2.3.2 Undisturbed Flow Profile

3. The Background

3.1 Description

3.2 Solution

3.3 Advantages

4. Product Information

3.1 FLUXUS F704 Non-instrusive Ultrasonic Floemwters For Liquids

3.2 Transmitter Specification

3.3 Transducer Liquid Specification

5. Flexim Design

5. 1 Flexim design without HMI Monitoring in Control Room

5.2 Flexim design with HMI Monitoring in Control Room

6. Catalogue

1 Introduction

1.1 Flexim Flow Technology

Highly Realiable Metering

The Advantages of the non-instrusive ultrasonic flow measurement are obvious :

As the Transducers are clamped onto the outside of the pipe, the measurement system is not exposed to any wear, tear or abrasion from the medium flowing inside the pipe.

Moreover, as the system does not pertrude into the pipe, no pressure losses are evoked, which in the end avoids unneccesary energy costs involved to the customer.

Measuring at high pressures, thick pipe walls and exotic pipe materials are not a problem at all for FLEXIM's flow meters.

Installation requirements are non existing - no cutting or welding has to be done to the pipe. The transducers are clamped-on externally by our solid mounting fixtures which also ensure a nearly maintenance free and long lasting lifecycle, which in the

end means: There are no process shut-downs requiered at any times!

FLEXIM's ultrasonic transducer systems are simply attached to the outside of the pipe.

Thus, the measuring equipment is not subject to wear and tear by the media and does not cause any pressure loss inside the pipe. Measurements at maximum operating pressures can be carried out easily with no additional costs added. No pipe work is required when setting up the measuring point and, as a result, the operation is not interrupted.

In combination with FLEXIM's transmitters, our flow meters ensure:

100% plant availability

Simple attachment of the Perma-Mounting Fixture to the outside of the pipe Installation is possible during normal ongoing operation without process

downtime

100% resistant to media

No contact with media, therefore no chemical attack to the system No need to use expensive special materials

100% wear-free

No wear and tear by abrasive media Long-term stable, maintenance-free operation due to permanent coupling

pads

100% leak-proof

No additional risk of pipe leakage caused by the measuring equipment

100% pressure-resistant

No pressure limit Effortless measurement even at maximum operating pressures No extra charge for high pressure ranges Zero point and measurement reading are not affected by static pressure

changes Unaffected by pressure peaks or solid content in the flow

100% secure

No blockage of small bores or impulse piping No influence of pulsations, vibrations, speed peaks, swirling or cross flows

100% robust

Resistant to pressure surges or solids in the medium

100% economical

No pressure loss, thus low operating costs Cost-effective installation Installation without welding or other mechanical work on the pipe No extra charge for large nominal widths

100% progressive

Precise, hysteresis-free, bi-directional flow measurement with high measurement dynamics

Long-term stable, drift-free measurement results High measuring rate Short response time Measurement of even minute flows

Not sensitive to pulsations, vibrations, velocity peaks, swirling flows or cross-flow conditions

Unmatched Flow Metering Accuracy

FLEXIM's non-intrusive ultrasonic clamp-on flow meters not only set the standards in terms of reliability and user-friendliness but especially in terms of accuracy.

The exceptional precision of the flow meters are based on over 20 years of experience and deep knowlegde in the field of ultrasonic clamp-on flow metering by FLEXIM's engineers.

Serveral technological breakthroughs, driven by the company, as well as implemented standards are the responsible cornerstones.

Plug & Play wet-flow calibrated transducers Each matched pair of transducers undergo a rigorous wet-flow calibration at the factory and is shipped with traceable calibration documentation. All calibration data (including the transducer identification and parameters) is stored in a transducer-resident non-volatile memory (EPROM). It is automatically transferred to the transmitter upon connection. Consequently, programming errors are eliminated and there is never a need for a zero adjustment or calibration.

Dual-P Technology with Digital Signal Processing (DSP) FLUXUS instruments feature an exceptionally robust dual-P technology core together with the latest Digital Signal Processing (DSP). With a generation of 1000 signals per second, they allow for real time statistical analysis and produce stable and reliable results even under the most difficult application conditions.

Powerful Correction Algorithms Based on many years of experience, FLEXIM continually developed the FLUXUS measurement algorithm, which automatically adapts to varying application conditions. Especially under non-ideal conitions with high pipe wall echoes, transducer positioning errors or a strong signal damping caused by exotic pipe materials or the medium itself, FLEXIM's correction algorithms play out their full advantage by unambigously recognizing such errors and eliminating them.

All this makes the FLUXUS flow meters unsurpassed in performance and one of the most capable ultrasonic flow meters available on the market today.

Guaranteed to be User Friendly

Highly Intuitive

No elaborate instructions are required in order to use FLUXUSs intuitively structured menus. The pipe material and media parameters are easily found in the systems internal database.

The measurement is started with just a few key strokes. Explosionproof instruments can be operated without opening the housing and without requiring any additional programming devices.

A Straight-Shot from pipe to PC

FluxData connects FLUXUS to any PC. This optional software package with a graphical user interface takes care of the data exchange between the transmitter and the computer.

With FluxData, you can easily transfer your measurement data from the flowmeter to a PC, analyze and visualize the measuring results and manage the data files directly or export them to an external data management program.

Widest Application Range

From 14 inch tubing to 20 foot penstocks

FLEXIM's non-intrusive technology offers reliable measurement on the smallest pipes (e.g. 1/4 inch tubing in paint finishing systems) as well as on very large ones

(e.g large penstock measurements in hydroelectric plants).

For any pipe and any liquid or gas

The measurement is possible on every liquid or gaseous medium and pipe material, regardless of the conductivity.

Wether it is steel, iron or plastic pipes; sludge, sand, acids or tar as medium: FLUXUS is up to the challenge!

Extreme temperature solutions

Standard transducers may be used at temperatures from -22F to 266F - the temperature range of the high temp versions extends up to 392F.

The patented WaveInjector system expands the measurement range of FLEXIMs standard transducers from cryogenic temperatures at -256F up to 752F.

Regardless of pressure levels

Since the ultrasonic transducers are mounted on the outside of the pipe, the measurement is not pressure sensitive. Measurements at high operating pressures do not result in any extra costs whatsoever.

... even in hazard area locations

Transducers and transmitters are available in FM / ATEX certified versions

2 Ultrasonic Flowmeter Clamp-on Type

2.1 Measuring Principle The proposed flow meter employs the transit time difference principle for flow measurement. Ultrasonic signals are emitted by a transducer installed on one side of a pipe, reflected on the opposite side and received by a second transducer. These ultrasonic signals are emitted alternatively in the direction of flow and against it.

As the medium in which the signals propagate is flowing, the transit time of the ultrasonic signals in the flow direction is shorter than against the flow direction.

The transit time difference t is measured and allows to determine the average flow velocity on the propagation path of the ultrasonic signals. A flow profile correction is then performed in order to obtain the area average of the flow velocity, which is proportional to the volume flow.

Figure 1: Transit time difference correlation principle

The received ultrasonic signals will be checked for their usefulness for the measurement and the plausibility of the measured values will be evaluated. The complete measuring cycle is controlled by the integrated microprocessors. Disturbance signals will be eliminated.

The volumetric flow rate is calculated as follow: Q = kRe . A . ka . t/(2 . tfl) where: Q - volumetric flow rate kRe - fluid mechanics calibration factor A - cross-sectional area of the pipe ka - acoustical calibration factor t - transit time difference tfl - transit time in the medium

2.2 Sound Paths and Installation Mode The number of sound paths is the number of transits the ultrasonic signal through the medium in the pipe. Depending on the number of sound paths, the following methods of installation exist:

Reflection mode The number of sound paths is even. Both of the transducers are mounted on the same side of the pipe. Correct positioning of the transducers is easier.

Diagonal mode The number of sound paths is odd. Both of the transducers are mounted on opposite sides of the pipe. In the case of high signal attenuation by the medium, pipe and coatings, diagonal mode with 1 sound path will be used.

Figure 2: Sound Paths and Installation Mode

2.3 Selection of The Measuring Point The Correct selection of the measuring point is crucial for achieving reliable measurement result and a high measurement accuracy.

A measurement on a pipe is possible if: - The ultrasound propagates with a sufficiently high amplitude (see section 2.3.1) - The flow profile is fully developed (see section 2.3.2). The correct selection of the measuring point and thus, the correct transducer positioning guarantees that the sound signal will be received under optimum conditions and evaluated correctly. Due to the variety of applications and the different factors that influence the measurement, there is no standard solution for the transducer positioning. The correct position of the transducers is influenced by the following factoros: - Diameter, material, lining, wall thickness and form of the pipe. - Medium. - Gas bubbles in the medium. Avoid measuring points in the vicinity of deformations and defects of the pipe and in the vicinity of welds. Avoid location with deposit formation in the pipe. The ambient temperature must be within the operating range of the transducers. Select the location of the transmitter within cable reach of the measuring point. The ambient temeperature at the location must be within the operating temperature range of the transmitter. If the measuring point is within an explosive atmosphere, the danger zone and gases that may be present must be determined. The transducers and the transmitter must be appropriate for these conditions. 2.3.1 Acoustic Penetration The pipe must be acoustically penetrable at the measuring point. The acoustic penetration is reached when pipe and medium do not attenuate the sound signal so strongly that is completely absorbed befor reaching the second transducer. The attenuation in the pipe and in the medium depends on: - Kinematic viscosity of the medium. - Proportion of gas bubbles and solids in the medium. - Deposits on the inner pipe wall. - Pipe material The following requirements must be met at the measuring point: - The pipe is always filled completely. - No material deposits in the pipe.

- - No Bubbles accumulate. - Tabel 4.1 : Recommended Mounting Posistion Horizontal Pipe Select a measuring point where the transducers can be mounted on the side of the pipe, allowing the sound waves to propagate in the pipe horizontally. Thus solid deposits on the bottom of the pipe or gas bubbles in the pipes upper part will not influence the propagation of the signal.

Vertical Pipe Select the measuring point at the pipe location where the medium flows upwards. The pipe must be completely filled.

Free inlet or outlet pipe section Select the measuring point at a pipe location where the pipe cannot run empty.

2.3.2 Undisturbed Flow Profile

Many flow elements (elbows, slide valves, valves, pumps, T-sections, diffusers, etc.) distort the flow profile in their vicinity. The axi-symmetrical flow profile needed for correct measurement is no longer given. A careful selection o the measuring point makes if possible to reduce the impact of disturbance sources. It is most important that the measuring point is chosen at a sufficient distance from any disturbance sources. Only then can it be assumed that the flow profile in the pipe is fully developed. However, Fluxus will give you meaningful measuring results even under non-ideal measuring conditions, with a liquid conditioning a certain proportion of gas bubbles or solid particles or if the recommended distances to disturbance sources cannot be observed for practical reasons for example. In the following examples, the recommended straight inlet and outlet pipe lengths are given for different types of flow disturbance sources to assist you in selecting the correct measuring point. Table 2.3.2 Recommended distance from disturbance source (D = nominal pipe diameter at measuring point, L = recommended distance)

Typical Measurement Set up for Liquids

3 The Background 3.1 Description Due to the rising energy prices, the economical use of fuel is an increasingly important role in the power plant sector. It have to be able to create and evaluate of the flow rate of fuel for every engine in order to see which machine needs maintenance work. To evaluate during each hour of operation, the plant is required to measure and record the flow rate of the fuel combusted. The flowmeter to measure to fuel oil must be accurate.

3.2 Solution Clamp-on ultrasonic flow measurement is the ideal solution for fuel consumption. The progressive ultrasonic technology of FLEXIM reliably measures on small pipes. The FLUXUS ADM 7407 transmitter can be transported to the most remote and narrow measuring point, the S2N7 transducers are easily and reliably mounted onto the pipe with the sturdy mounting fixtures.

3.3 Advantages - No extensive modification procedures necessary on the existing pipes - Fast installation and commissioning of the measuring point. - Flexible measuring operations, also for different measuring points and

Applications - High savings potential due to exact measurements with minimum effort

4. Product Information

4.1 FLUXUS F704 Non-instrusive Ultrasonic Floemwters For Liquids

FLUXUS F704 is a stationary ultrasonic flowmeter with its clamp-on transducers, it is an ideal tool for measurement continuously. Since the transducers are mounted on the pipa and without process interruption. The measuerement causes no pressure loss and is ideal for chemically aggressive, corrosive or ultra-pure media.

Thanks to its exceptional dual-uP technology, high number of measuring cycles per second and adaptive signal processing, FLUXUS F707 produces stable and reliable measuring results even under difficult condition.

4.2 Transmitter Specification

MODEL TRANSMITTER

Fluxus ADM 7407

Measuring principle:

Transit time difference correlation principle Automatic noiseTrek selection for measurements with high gaseous or solid content

Flow velocity: 0.01 to 25 m/s for liquid

Resolution: 0.025 cm/s

Repeatability: 0.15% of reading 0.01 m/s

Accuracy: (for fully developed, rotationally symmetrically flow profile)

- Volume flow: 1% to 3% of reading 0.01 m/s depending on application 0.5% of reading 0.01 m/s with process calibration

- Path velocity: 0.5% of reading 0.01 m/s

Measurable fluids: All acoustically conductive fluids with < 10% gaseous or solid content in volume

4.3 Transducer Liquid Specification The Transducers System for Liquid Metering at Outlet Oil Production Separator Soka is using type M shear wave transducer.

Type M Transducer

Wave type: Shear Wave

Operating frequency: 1 MHz

Operating temperature: -40 ...+130 C

Housing material: PEEK with SS 304

Contact surface: PEEK

Classification: ATEX ZONE 2

5. Flexim Design 5.1 Flexim design without HMI monitoring in Control Room

The Design is typical for all engines (7 units)

5.2 Flexim design with HMI monitoring in Control room

Monitoring HMI

The Design is typical for all engines (7 units)

6. Catalogue