nuovo ultima pagina zf hatektyp pas – chilled beams with expanded metal mesh as a cover expanded...

30 1 / 2 0 1 3

System description/applications ••••••••••••••••••••••••••••••••••••••••••••• 4

COMPACTLINE chilled beams ••••••••••••••••••••••••••••••••••••••••••••••• 5

Information on assembly position •••••••••••••••••••••••••••••••••••••••••••• 6

Design ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7

Technical features •••••••••••••••••••••••••••••••••••••••••••••••••••••••• 10

COMPACTLINE

All legal and technical information was compiled to the best of our knowledge and with

utmost care. Nevertheless, errors cannot be completely excluded and liability for damage

resulting is not assumed. This document and all of its parts are protected under copyright

laws. Any use beyond those exceptions authorized by the copyright law is not permitted

without the consent of the Uponor GmbH. All rights reserved in particular with regard to

reproduction, reprinting, editing, storage, processing in electronic systems, translation and

microfi lming. This document is subject to technical changes without notice.

Copyright 2012

Uponor GmbH, Hassfurt, Germany

4 0 1 / 2 0 1 3

COMPACTLINE — Passive chilled beams for use in commercial buildings

System description/applications

The passive chilled beams (cooling

convectors without supply air) of

the model COMPACTLINE are used

to deal with high heat loads and

for air conditioning of commercial

buildings such as:

Offi ce buildings

Banks

Hotels

Restaurants

Shopping Centres

Production and exhibition halls

The modular construction and

the variable design of the cooling

beams are ideal for both new

buildings and installations in

existing buildings. Chilled beams

are operated with chilled water

in closed circuits and therefore more

effi cient than conventional air-

cycle air conditioning. Passive chilled

beams work on the principle of

free convection (cooled air sinks to

the bottom) and therefore require

no moving parts which could

produce noise. The investment and

operating costs of the chilled beams

are low because of the low cost

of materials and the high capacity

for cooling.

Depending on the space and ceiling

design, the elements can be

installed fl ush with the ceiling or

freely suspended. Chilled beams

Freely suspended COMPACTLINE chilled beams – cleverly integrated from an architectural perspective

Your benefi ts

High cooling capacity

Low investment and operat-

ing costs

Comfortable indoor climate

as opposed to conventional

air conditioning

No dust dispersion

No noise is generated

Low-maintenance

Operating principle of passive chilled beams

can also be used in combination

with chilled ceilings to increase

cooling capacity while still

maintaining the comfort of the

room. The same cold water

temperatures can be used as well.

Operating principle of

COMPACTLINE chilled beams

Passive chilled beams operate

on the basis of the gravity of the

cooled air in the cooling beam,

which slowly sinks down into the

occupied zone and forces the

inflowing warm air toward the

ceiling area. Through the free

convection of the room air and

the correct position of the cooling

beam, tangential air is created

which is necessary for the high

cooling capacity of passive

cooling beam. The effect of the

tangential air is further enhanced

by the slight vacuum that exists

in the chilled beam. The vacuum

created by the cool air in the

cooling beam then sucks in the

warm air from the ceiling area.

Ceiling

Floor

Cooled area

plate-fin heat exchanger

Water inlet

Water outlet

Threaded rods or

wire cables

Inflowing warm

airFree area (open), perforated

plate, expanded metal mesh or

plastic grid (cover)

Case

Building temperature control > Other systems and additions > COMPACTLINE chilled beams

50 1 / 2 0 1 3


Design

A COMPACTLINE chilled beam

consists of a white-powder-

coated galvanized steel housing

(different type PAO unpainted,

black optional) with an internal

heat exchanger consisting of

an aluminium lamellae stack and

integrated copper serpentine

pipework. The chilled beams are

available with three different covers.

As a result, the air outlet can be

selected according to architectural

requirements.

Chilled beam with covers and

front plates

Chilled beam with covers and front

plates are mainly used in offi ces.

Detail of a chilled beam - high quality workmanship

Typ PAO – chilled beams without cover and without front plates

Typ PAR – chilled beams with plastic grid mesh panel as coverPlastic grid mesh panel: honeycomb 13 x 13 mm, open area approx. 80%

Typ PAH – chilled beam with perforated plate as a coverPerforated plate: perforation Rv 4-5 - circular perforation mm 0 4, distance 5 mm, staggered perforation, open area approximately 58%

Typ PAS – chilled beams with expanded metal mesh as a coverExpanded metal mesh: mesh 22 / 12 / 2.5 / 1.5 mm, open area approx. 58%

Chilled beam types

Chilled beams without cover and

without front plates

Chilled beams without covers and

front plates are used where they

are either not visible (e.g., above a

ventilated ceiling in support of

cooling ceiling) or where the optics

play a minor role (e.g., freely

suspended in factories).

Here, the installation takes place

either fl ush-mounted or freely

suspended in the room.


6 0 1 / 2 0 1 3

Information on assembly position of COMPACTLINE chilled beams

If chilled beams can be positioned

anywhere in the room, then the

distance between the beam and the

concrete ceiling should be at least

one quarter of the beam’s width.

If the chilled beams are positioned

in the vicinity of walls, then the

distance between the beam and the

Due to the sinking cool air, no work

station should be located right

Chilled beam parallel to the opposite warm exterior facade

Open installation under the ceiling Built into the ceiling void with air outlet Installation in closed ceiling fl ow through slots

Chilled beams perpendicular to warm exterior facade

concrete ceiling should be at least

one half of the beam’s width. When

fl ush-mounting (in suspended

ceilings) make sure space is

provided in the sub-ceiling for the

returning air fl ow. This return air

fl ow space (open area for the

slipstream of the air being cooled)

below the chilled beam. Otherwise,

this could lead to thermal

Arrangement under the ceiling

Recommended arrangement in the room

should be at least 30% of the total

cooling surface (L x W of the

chilled beam). The return air fl ow

space can correspond to the

open area in the air permeable

suspended ceiling or the area of

infl owing air circulating inside

the chilled beam.

discomfort of the people in the

immediate vicinity.

B

min.

0.25 x B

min. 2 x B

min.

0.5 x B

B


70 1 / 2 0 1 3

Design

Cooling capacity according

to EN 14518

The cooling capacity values of the

COMPACTLINE chilled beams type

PAO and type PAR with a case

height H = 150 mm can be seen in

diagram 1.

The power in watts per meter

(lamellae stack length) is read as a

function of the temperature

difference between the mean water

temperature and the room air

temperature.

Reduction in capacity of the values

read from the diagram for

COMPACTLINE chilled beam types

and designs

Type Case height

[mm]

Capacity reduction

[%]

PAH 150 3

PAS 150 3

PAO 100 13

PAR 100 13

PAH 100 16

PAS 100 16

Cooling c

apac

ity p

er

unit

length

[W

/lf

m]

lam

ellae

sta

ck length

Temperature difference (mean water temperature to room temperature) [K]

0

600

100

300

500

200

400

4 125 6 7 8 9 10 11

Width 605 mm

Width 455 mm

Width 305 mm

Width 155 mm

Diagram 1:

COMPACTLINE type PAO and PAR type with H = 150 mm - cooling capacity per

unit length according to EN 14518


8 0 1 / 2 0 1 3

Pressure loss calculation

diagrams

Diagram 2:

Water fl ow rate

Diagram 3:

Pressure loss of the lamellae

stack per lfm [linear meter]

Diagram 4:

Pressure loss of the form parts

of a chilled beam

Wat

er

flow

rat

e [

l/h]

Capacity [W]

0

400

50

100

150

250

350

200

300

Temperature

differential

water

1.0 K

1.5 K

2.0 K

2.5 K

3.0 K

3.5 K

4.0 K

4.5 K

5.0 K

0 1400200 400 600 800 1000 1200

Pre

ssure

loss

[kP

a/lf

m lam

ellae

sta

ck]

Water flow rate [l/h]

Chilled

beam

width

605 mm

455 mm

305 mm

155 mm

50 400100 150 200 250 300 350

0

10

1

2

3

5

7

4

6

8

9

Addit

ional

pre

ssure

loss

[kP

a/beam

]


Chilled

beam

width

605 mm

455 mm

305 mm

155 mm

50 400100 150 200 250 300 350

0

3

0.5

1

1.5

2.5

2


90 1 / 2 0 1 3

Diagram 5:

Flow velocity of water in the

copper serpentine pipework

Design example

Requested:

Room air temperature ϑi = 26 °C

Flow temperature ϑVL

= 17 °C

Return fl ow temperature ϑRL

= 19 °C

Case height H = 150 mm

Chilled beam width B = 455 mm

Chilled beam length L = 2,000 mm

Calculation:

Temperature difference Δϑ = Room air temperature ϑi – Medium media temperature

Δϑ = ϑi – (ϑ

VL+ ϑ

RL)/2 = 26 °C – (17 °C + 19 °C) / 2 = 8 K

From diagram 1: specifi c cooling capacity q̇ = 251 W/lfm

Lamellae stack length LP = L – 150 mm = 2,000 mm – 150 mm = 1,850 mm

Cooling capacity of the chilled beam Q = q̇ · LP = 251 W/lfm · 1.85 m = 464 W

From diagram 2: volume fl ow rate V = 200 l/h

From diagram 3: specifi c pressure loss Δp = 2.2 kPa/m

From diagram 4: pressure loss ΔP_form parts = 0.6 kPa/Balken

Total pressure loss ΔP = Δp · LP + ΔP_form parts = 2.2 kPa/m · 1.85 m + 0.6 kPa = 4.67 kPa

From diagram 5: Flow velocity = 0.42 m/s

Results:

Cooling capacity Q = 464 W

Volume fl ow rate V = 200 l/h

Pressure loss ΔP = 4.67 kPa

Flow velocity w = 0.42 m/s

Flo

w v

elo

city

[m

/s]


50 400100 150 200 250 300 350

0

0.8

0.2

0.4

0.6


10 0 1 / 2 0 1 3

Material and surface

Case Galvanized sheet steel 1mm

Standard-surface Type PAO - unpainted, optional black

Types of PAH, PAS, PAR - white (RAL 9010) silk matt other RAL colours on request

Standard-dimensions

Case Length L 1.000 to 4.000 mm in 250 mm stages

Width B 155/305/455/605 mm

Height H 100/150 mm (without mounting rail)

Length lamellae stack L minus 150

Assembly details

Copper pipe Outer diameter da = 15 mm, pipe wall thickness s = 1 mm spigot with retaining groove for

plug-in connection.

For chilled beam width of 155 mm - spigot with 90 ° elbows without inward inclination.

For chilled beam widths of 305/455/605 mm - spigots with 90 ° elbows, with 45 ° inward incline

Connection Connection for all types on one side

For chilled beam width of 155 mm - connection to top with angle plug connectors

For chilled beam widths of 305/455/605 mm - connection to top with straight or angle plug connectors.

Suspension Hook profi le, M8 threaded rods or wire suspension

Accessories Flex hoses with straight or angle plug connectors, DN = 15 mm

Recommended water temperature 16 °C

Recommended drop in pressure max. 25 kPa

Recommended fl ow velocity max. 0.6 m/s

Technical features

Operating conditions

Operating weight and

water content

L L1 L2 L3 L4

1000 850 – – –

1250 1100 – – –

1500 1350 – – –

1750 780 820 – –

2000 905 945 – –

2250 1030 1070 – –

2500 1155 1195 – –

2750 1280 1320 – –

3000 950 950 950 –

3250 1035 1035 1030 –

3500 1120 1120 1110 –

3750 1210 1210 1180 –

4000 955 955 955 985

Width in mm Weight in [kg/lfm] Water content

[L/lfm]PAO PAH + PAR PAS

155 4.4 4.9 5.3 0.3

305 7.0 8.0 8.7 0.8

455 8.5 10.0 11.0 1.2

605 9.9 10.5 13.3 1.6

Note:

Condensation must be prevented!

B

A

Detail A Detail B

15 f

or

B =

155,

oth

erw

ise 2

5

40

H

BL

55L2 ... L4L1

95

40

10

25

30 8,5

Bei B = 155 mm

connections vertical

for B = 305, 455, 605 mm

connections 45 ° inclined


110 1 / 2 0 1 3

Building temperature control, energy supply and power generation with Uponor Energy Solutions everything under one-roof

Heating and cooling ceilings Thermally Active Building System Miscellaneous systems

VARICOOL TABS

Metal

VARICOOL Spectra

Gypsum board

VARICOOL UNI

Building temperature control

GEOZENT

Energy supply

Geothermal probes

Energy piles

Energy gain

Geothermal collectors

Geothermal ground well


TENNO heating/cooling walls

High performance

VARICOOL Softline 4

VARICOOL Opti Y

Ceiling elements

VARICOOL Spectra

VARICOOL Velum

QUELLO air vents

Building temperature control

Uponor Energy Solutions surface

systems, such as heating and

cooling ceilings and concrete core

temperature control are established

technologies for regulating room

temperature and have been a

market leader for more than

50 years. The numerous technical

developments have made us a

pioneer in the fi eld of advanced

building system technology.

Power generation

As an ideal basis for the sustainable,

ecological and highly economical

supply of commercial real estate with

thermal energy, Uponor Energy

Solutions have many years of

know-how in the use of geothermal

probes, energy piles, ground heat

collectors and geothermal

groundwater wells.

Energy supply

For commercial buildings, we have

developed a large geothermal heat

pump, as a ready for connection

power station with its own

integrated hydraulic system:

The multifunctional heat pump

simultaneously produces heating

and cooling energy as needed and

is manufactured according to

individual requirements in modular

design ready for connection.

Partner ufficiale

Via Pillhof 35 � I-3905

Tel.: +39 0471 63 11 91 �

E-Mail: [email protected] �

le per l'Italia

9057 Frangarto (BZ)

Fax: +39 0471 63 39 21 Internet: www.hatek.it

nuovo ultima pagina zf hatektyp pas – chilled beams with expanded metal mesh as a cover expanded...

Documents