afsen

7/30/2019 afsen

1/12

Because one mesurement tells more than a thousand expert words

Thermal Engineering /Aow Seces S.A.S.

Your single source solution or air coolerand air condenser applications

7/30/2019 afsen

2/12

7/30/2019 afsen

3/12

www.airow-services.com

AFS oers a unique Total Concept or the air cooler (ACHE) and air cooled condenser (ACC)applications that we oer as an integral service package.

The combination o dierent disciplines makes it an integral approach unique in its kind or o air-coolers and

air cooled condenser systems.Through our own hands-on approach combined with yearso experience in manuacturing and design o ACHE and ACC(through GEA Btt), there is literally no single problem AFS cantsolve on ACHE or ACC applications.Through our vast network within the GEA group and strategicpartners, AFS is able to oer a unique concept in the world toupgrade and maintain ACHE and ACC perormances.The main goal o our services is to overcome cooling/condensingproblems by improving overall ACHE & ACC perormances andefciency. We apply this on any type o Air Cooler such as FinFans, Airfn Coolers, etc.

Abot AFS

7/30/2019 afsen

4/12

The GEA Aow Seces Coto Assessmet Sey w eteme the most oftabe aaatageos gae, takg o cstomes bgetay mtatos to accot. GEA AowSeces boa estag a seasoe exetse a-cooe heat exchages ca make thsa emakaby beefca choce.

The coto assessmet sey oes thee key aatages

It will uncover the topmost potential o the examined unit(s). Investments are especially cost-eective (no unnecessary investments). Allows anaccurate calculation o Return On Investments.

O Coto Assessmet Sey ca ecomass the oowg seces

ACHE Perormance Testing:

Airfow, P, Kilowatts Air Temperatures Inlet/Outlet (T airside)

Process Temperature Readings

Mechanical Inspection

Noise Level Measurements

Vibration Analysis

Thermal images

CFD Modelling

Thermal Ratings using HTRI

Coto Assessmet Sey

7/30/2019 afsen

5/12


Mechanicalsurvey

Process DataCustomer

Bundle Air SideEciency

Fan eciency

Review ACHEPerormance

Visual InspectionStructural, Tube Bundles,Pleniums, Fans & Mechanicals

Air ace velocity readingsTemperature readings

Fan peromance testingAirfow, Kilowatts, StaticPressure

Thermal analysisOperating versus actualperormance

Detailed reporto ndings

ACTiOn COOlEr

EvAluATE FinAl

upGrAdE

Establish upgrade options

Project review Customers/AFS

Test on one or two cells

Upgrate evalluate test

Report ndingsRecommandationsBudget

Customer

GEA Aow Seces poject Oeew

7/30/2019 afsen

6/12

Our own measuring instrumentsand simulation sotware enable usto measure and evaluate possiblenoise reduction.In certain cases, e.g. at a FrenchRefnery, we succeeded in decreasingnoise by as much as 7.7 dBA, combinedwith a perormance improvement othe existing air coolers. We achievethis by installing special low noiseans, drives and diusers.Our noise prediction sotware willindicate how much te actual noise

level (PWL & SPL) can be reduced.

nose lee recto

GEA Airfow Services provides valuable know-how to operators who are considering an upgrade. In the eventthat process demands have exceeded the initial eatures and a new installation is considered too costly, anupgrade may be just what you are looking or.

Upgrades can involve one or several o these options:

TipsealsfortipclearanceaccordingtoAPI661specifcations.

Sealdiskstopreventairrecirculationatthecentero the an.

Optimalpitchangle.

Inletbellsforidealinlet/outletconditions.

Optimalfantipspeed/RPM.

Airseals.

Efcient/Reliablehighefciencyfanblades.

Efcient/Reliabledrivesystems.

Foggingsystems.

Properexternalcleaningmethods.

Re-tubes.

Completelynewbundles.

Additionofentirely

new bays.

ugaes

7/30/2019 afsen

7/12


As the only complete solution orAir Cooled Heat Exchanger (ACHE)& Air Cooled Condenser (ACC)applications on the market, weknow how important it is or youto protect your investment.This is where AFS comes in withour in-house Total ProductiveMaintenance Program, whichwill analyse and optimize theentire ACHE & ACC applicationchain. Part o the program willalso include on-site training or

end user personnel.

deatmets cocee by a ac & acc oeato

Mateace pogam

7/30/2019 afsen

8/12

Extea Ceag o Fe Tbe B

AFS is specialized in external cleaning o nned tube bundles. We are able to clean the nned tube bundlesin many dierent ways depending on air cooler layout, conguration, environment and your specialrequirements.

The results are antastic. Cleaning removes the obstructions or the air. This can lead to cooling capacity increaseby as much as 50 to 60%.

dty E52-E5445

40

35

30

25

20

15

10

5

001/01/2004 21/01/2004 10/02/2004 01/03/2004 21/03/2004 10/04/2004 30/04/2004

Cets gah50% moemet

7/30/2019 afsen

9/12


Powerful water beam through bundles

es

A at razor-blade sharp water beam is used to remove ouling rom between the fns.This cleaning process uses only water, no chemicals.Waterpressureis80100bar,ow150or300l/min.By using the correct nozzle angles the water beam penetrates between the fns o all tube rows.The nozzle beam is moved over the bundles by pneumatic or electric drives, avoiding operators standing on the coolers.Cleaning can be done during operationThe cleaning unit is a light weight construction to be positioned on top o the bundles or on rails installed on the coolerbindles.

One cleaning system can handle 2 4 air coolers inone day shit.Obstructions like louvers can be dealt with byinstalling rails between the bundle rame and thelouvers.

The cleaning-water can be collected and reused atercleaning.

Ceag sg sematomatc Hp ceag mache

7/30/2019 afsen

10/12

The principal objective o the External Cleaning Training on Air Cooled Heat Exchangers fnned tube bundles is to enableYour organisation (or Your sub-contractor) to acquire the skills and expertise required to conduct outstanding andindependent external cleaning o air-cooled heat exchanger fnned tube bundles in view o increasing Air Cooler Heat Duty.This program will enable you to improve your external cleaning results by an average 20-40% versus the conventionalcleaning techniques.GEA AIRFLOW SERVICES courses are taught onsite by a proessional instructor with frst class working knowledge andextensive practical experience, ensuring frst-rate instruction, product insight and experience-based learning. The training

will include customer sta technical instruction, recommendation reports, and priority customer support or a set periodo time or training o the customers local cleaner (sub-contractor)

Here we use both our special Clean Fin Foam to soak the bundle combined with HP hydrojetting rom the bottom andrincing o with LP high quantities o water

Ceag Tag pogams C/W

sy o basc ceag toos(HP gun, Foam Tank & Special AFS Clean Fin Foam)

Chemca ceag sg o owseca AFS Cea F Foam

7/30/2019 afsen

11/12


Process ow rate improvement using high efciency fans Depropaniser

95,0

90,0

85,0

80,0

75,0

70,0

65,0

60,0

35

34

33

32

31

30

20 21 22 23 24 25 26 27 28 29 30

Ambiant temperature (C)

Propanefowrate(t/

h)

ActualU(W/m2-K)

12,000

11,000

10,000

9,000

8,000

7,000

6,000

5,000

4,000

3,000

2,000

1,000

0,00012 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50

Eaoato tme o a wate oet a wth 40% rHegag temeate a oet as

Temeate (C)

5

10 15 20 25 30 40 50 60

Time(second)

A ogging system (peak cooling) can be defned as a series o misting nozzles that are placed in a tubing and pressurizedtoprovidea nespray,usuallywithdropletsbetween15micronsand50micronsin size.Toaccomplishthis,themistsystemrequirespressureofatleast50Bar(725PSI).Belowthispressure,itwillproducelargerdropletsandresultininefcient cooling.The principle is ounded on the cooling o theair at a temperature close to its temperatureo adiabatic saturation per water evaporation.Depending on climatic environment, a properlydesigned ogging system can decrease the inletairtemperaturebyasmuchas12C(54F)whichin turn increases considerably your coolingcapacity (see graph illustration).

Foggg system (eak cooling)

7/30/2019 afsen

12/12

www.airfow-services.com

afsen

Documents