Plate heat exchangers

1

Energy Saving.Recuperator heat recovery units offervarious possibilities for energy savingand an alternative for reducing energycosts and atmospheric pollution.

Characteristics.Heat-exchangers are exchangers thatenable heat to be transferred betweenthe input and the output air-flows basedon the difference in temperature.Recuperator offer two series of staticplate exchangers (Series B and F) anda rotary exchanger series (Series T),whose characteristics meet the require-ments of both the industrial and thenon-industrial markets.

Reliability and High Performance.The plate type are air-to-air heat-exchangers that have no moving parts,offering very high reliability andperformance; in addition, they make forlow energy consumption in associatedboiler equipment.The heat is transmitted directly from thehigher to the lower temperature-flow;the air-flow pattern is of cross-flowdesign, and the exchanger's efficiencyis between 40 and 75%.

Sealing.This type of heat-exchanger consists offlat plates with swirl control, whosespacing depends on the type ofapplication.The exhaust and supply air-flows arecompletely separated by means ofspecial seals.

Materials.The plates are usually made ofaluminium, due to the latter's corrosion-resistance, ease of manufacture, non-inflammability, and durability. In specialcases, such as the presence ofcorrosive parts, the aluminium can becoated with anti-corrosion paint, while,in the case of high operatingtemperatures or special applications,stainless steel alloys are used.

Condensation.Plate-type exchangers do not allow forthe passage of humidity from one flowto another, but can transfer part of thelatent heat contained in the wetexhaust air-flow; this happensespecially when external temperaturesare very low, so that the supply aircools the wet exhaust below its dewpoint and condensation is formed.

Introduction

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It is Recuperator's constant aim tomaintain the highest standards ofquality. Stated performance figures arecertified by tests carried out inaccordance with Eurovent rules byindependent organizations such asTechnikum of Lucerne (Switzerland)and Istituto Ricerche e Collaudi Masiniof Rho (Milan).The quality and performance ofRecuperator products are guaranteedby a well-equipped research laboratoryand an ASHRAE wind-tunnel, wheretests are conducted periodically onproduct lines.

All supplies of aluminium coils arechecked and tested using our Erichsentest equipment, in accordance with DINStandard 50 101. Checks are repeatedduring and at the end of themanufacturing process so that thephysical characteristics of the materialsused are continuously monitored.

Quality

Air-conditioningVentilation

Areas

Schools

Swimming-pools

Hospitals

Telephony

Railways

Ventilation hoods

Dryers

Rotogravure printing machines

Heat recovery from flue gases

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MaterialSeries

The table gives a few examples ofapplications relating to series andmaterials used by Recuperator.

Pre-heating and pre-cooling in the air-handling units

ApplicationBF

Aluminium

Heat recovery from air renewal (B Aluminium)B Aluminium

Pre-heating of air in air-handling unitsBF

Coated aluminium

Heat recovery from the exhaust air withoutmixing of the two air-flows

BF

Aluminium and stainless-steel

Heat dissipation inside shelters and mobiletelephone cabins

B B Aluminium and coated aluminium

Heat dissipation inside converters for air-conditioning in railway carriages

BF

Aluminium

Heat recovery from flue gases for heatingpremises

BF

B Aluminium and coated aluminium

Pre-heating of air inside dryers and heating ofpremises

BF

Aluminium and stainless-steel

Heat recovery from solvents and heating ofpremises

BF

Aluminium and stainless-steel

Heat recovery for pre-heating the air at entranceto burners and heating of premises

BF

Stainless steel

Examples of Applications

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07=Modelfrom 02 to 24

AL= Plate materialAL: AluminiumAC: Coated aluminiumI6: AISI 316L

N=Temperature rangesN: -30°C+90°C polyurethane/epoxy resinD: -30°C+150°C silicon/epoxy resinV: -30°C+200°C silicon/epoxy resinX: -30°C+280°C siliconY: -30°C+500°C refractory silicon

F=SeriesBF

x=Trading group

T=VersionT: StandardS: Stock cubes

SC BP25=Options

090= Net length of finned unit(cm) (step 10 mm)

M=Spacing between platesC: Close-fittingM: MediumL: Large

Product Code

F x AL 07 N 090 M T SC BP25

general informationfor specifications see Page 8SC SMNSTVXS AZCPCSRF

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XSGreater resistance to differentialpressure.

TVThe frame is coated when the heat-exchanger frame is exposed corrosivesubstances.

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Recuperator offers a series of options for differing requirements.

:standard version for Series B

BAL/AC

FAL/AC

BI6

FI6

XS TV AZ SM SC CP NSSeries

CPTop cover with bevelled corners toreduce the diagonal dimension.

NSVersion using other sealants instead ofsilicon. Available for temperatures of upto 90°C (temperature range “N”).

AZSide in thinner aluminium.

RFReinforced frame for lager, heavierheat-exchangers.

SCExtra sealing to ensure closer fit of thetwo air-flows (example: application forhospitals). A leakage diagram can behad on request in this version.

SMMechanical sealing of the exchangerunit. A leakage diagram in this versioncan be had on request.

CSSpecial corner sections to makediagonal fitting easier.

4

2

2

1

3

1 3

CS RF

:standard version for Series F2

:standard version for models02 and 03

4

1 :not available for the “Y” temperature range

3

Options

CS Option CP Option (B series) CP Option (F series)

6

BPLateral by-pass with damper, used toregulate the power exchanged in theheat-exchanger; the dampers aremounted on the exchanger frame anddesigned so as to give the samepressure drop as the heat-exchanger.

BSLateral by-pass without a damper.

BCIn this version, the by-pass section is ina central position.

BZCentral by-pass without a damper. BA

Lateral by-pass with a damper andinstallation of the servomotor inside thetreatment unit.

BLLateral by-pass with short damper forinside shaft.

BBCentral by-pass with damper andinstallation of the servomotor insidetreatment unit.

BVLateral by-pass with vertical-bladedamper.

BP..BP..Double side by-pass with damper.

B

F

BS BZ BP BC BB BL BV BP..BP..Series

Recuperator provides a series of By-pass options to meet various requirements. All the By-pass options are valid from Model03.

BA

By-pass Options

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The air-flow direction is of no real importance. However, it is recommended that the exhaust air pass through the heat-exchanger from the top towards the bottom in cases in which the formation of condensation is to be expected.

Some examples of the behaviour of the two air-flows, using a single heat-exchanger.In special cases, it is possible to use several heat-exchangers to overcome inconveniences such as: lack of space, a majordifference between the two flows, etc. The drawings show a few examples.

Special Applications

Recuperator S.p.A Rescaldina (MI), Italy www.recuperator.eu www.recuperatorusa.com

A series

Application

-Air Conditioning and Heating -Swimming pool and Hospital -Replacement with recovery

Dimensions

Depending on the various options introduced, the size may vary from those shown. Please contact Recuperator for correct evaluation

Model B1 A1 mm (in) mm (in)

02 200 (7.87) Max 500 (19.68) Coming soon

03 300 (11.81) Max 500 (19.68) 04 400 (15.74) Max 500 (19.68) Coming soon

05 500 (19.68) Max 500 (19.68) Coming soon

06 600 (23.62) Max 500 (19.68) Coming soon

Performance

Performance indicative; for correctly selection, use Recuperator's Rex selection program

Model Max flow rate ∆P η m³/h (CFM) Pa inWC %

02 03 600 (355) 100 (0.4) 75.00 04 05 06

Recuperator S.p.A Rescaldina (MI), Italy www.recuperator.eu www.recuperatorusa.com

B series

Application

-Air Conditioning and Heating -Swimming pool and Hospital -Industrial ventilation -Replacement with recovery -Spray booth

Dimensions

Depending on the various options introduced, the size may vary from those shown. Please contact Recuperator for correct evaluation.

Model B1 A1 mm (in) mm (in)

02 200 (7.87) Max 700 (27.55) 03 300 (11.81) Max 900 (35.43) 04 400 (15.74) Max 1200 (47.24) 05 500 (19.68) Max 1300 (51.18) 06 600 (23.62) Max 1400 (55.11) 07 700 (27.55) Max 2000 (78.74) 08 800 (31.49) Max 2000 (78.74) 14 1400 (55.11) Max 2000 (78.74) 16 1600 (62.99) Max 2000 (78.74)

Performance

Performance indicative; for correctly selection, use Recuperator's Rex selection program

Model Max flow rate ∆P η m³/h (CFM) Pa (inWC) %

02 1500 (882) 130 (0.52) 50.00 03 3555 (2092) 180 (0.72) 52.50 04 7000 (4120) 250 (1.00) 50.50 05 9500 (5591) 260 (1.04) 50.50 06 11500 (6768) 280 (1.12) 55.50 07 20000 (11771) 300 (1.20) 52.00 08 22500 (13243) 300 (1.20) 52.00 14 38000 (22366) 300 (1.20) 60.00 16 42000 (24720) 300 (1.20) 60.00

Recuperator S.p.A Rescaldina (MI), Italy www.recuperator.eu www.recuperatorusa.com

F series

Application

-Air Conditioning and Heating -Swimming pool and Hospital -Industrial ventilation -Replacement with recovery -Spray booth

Dimensions

Depending on the various options introduced, the size may vary from those shown. Please contact Recuperator for correct evaluation.

Model B1 A1 mm (in) mm (in)

07 705 (27.75) Max 2400 (94.48) 08 805 (31.69) Max 2400 (94.48) 09 905 (35.62) Max 2400 (94.48) 10 1005 (39.56) Max 2400 (94.48) 12 1205 (47.44) Max 2400 (94.48) 14 1410 (55.51) Max 2400 (94.48) 16 1610 (63.38) Max 2400 (94.48) 20 2010 (79.13) Max 2400 (94.48) 24 2410 (94.88) Max 2400 (94.48)

Performance

Performance indicative; for correctly selection, use Recuperator's Rex selection program

Model Max flow rate ∆P η m³/h (CFM) Pa (inWC) %

07 26000 (15303) 260 (1.04) 50.50 08 32000 (18834) 260 (1.04) 50.00 09 37000 (21777) 300 (1.20) 50.00 10 42000 (24720) 260 (1.04) 50.00 12 51000 (30017) 280 (1.12) 55.50 14 54000 (31783) 300 (1.20) 53.50 16 60000 (35314) 260 (1.04) 50.00 20 75000 (44143) 270 (1.08) 55.50 24 95000 (55915) 300 (1.20) 60.00

11

Recuperator supplies its customers withthe REX program (RecuperatorExchangers). This enables customersto select the best heat-exchanger, sinceit contains a price-list and all thenecessary technical information.

Selection

LepetitIndustrial Pharmaceuticals - Switzerland

CariploBank - Italy

LinateAirport - Italy

12

Recuperator is able to offer itscustomers a disk and a book, coveringthe first ten years of its activity (1975-1985), containing a few thousandcustomer references from all over theworld.

FIATAutomobile - Italy

CarrierHVAC - USA - France

General MotorsAutomobile - USA

LuxotticaIndustrial - Italy

BBCTelevision - UK

ComprintStamping Machine - Australia

Nuova BicoccaUniversità di Milano - Italy

BayerIndustrial Pharaceutical - Italy

NovotelInternational Hotel Chain

Customer References

Italtel-TelecomTelecomunications - Italy

EnelIndustrial Eletrical - Italy

PirelliTires - Italy

Magneti MarelliIndustrial Electronics - Italy

RicordiIndustrial Graphics - Italy

San PaoloBank - Italy

RECUPERATOR

Recuperator USA - PO Box 10084, Lancaster, PA 17605 - Tel: 717-299-5679 - Fax: 717-299-5679 - Cell.: 717-917-3635 Herr@RecuperatorUSA.com - www.RecuperatorUSA.com

Advanced Testing Capabilities Recuperator has two state-of-the-art computerized wind tunnels capable of testing every size and configuration of plate and rotary heat and energy exchanger to ASHRAE, AHRI, TUV or Eurovent standards. We can also test to custom specifications.

Recuperator USA PO Box 10084

Lancaster, PA 17605 Tel: 717-299-5679 Cell: 717-917-3635

Email: Herr@RecuperatorUSA.com www.RecuperatorUSA.com