Contact, Overview, Index. Ceiling Heating/Chilled. Plexus. Professor. Pilot. Architect. Polaris I & S. Plafond. Podium. Celo. Cabinett. Capella.

Transcription

1 Contact, Overview, Index Ceiling Heating/Chilled Plexus Professor Pilot Architect Polaris I & S Plafond Podium Celo Cabinett Capella Fasadium Atrium H & C /Loggia Regula Drypac TM Lighting TEKNOsim Lindab Ventilation A/S. All forms of reproduction We without reserve written the permission right to make are forbidden. changes is the registered trademark of Lindab AB. Lindab's products, systems, product and product group designations are protected by intellectual property rights (IPR).

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3 Use Lindab's chilled beam is placed above a perforated suspended ceiling and supplies cooling, with a low air velocity, to the room below. has a high radiation quotient of approx. % (compared to approx. % for traditional finned products). This gives great freedom in placing, when installing, yet keeps air velocities low. can be used for cooling. It can be equipped with the Regula Connect condensation guard feature. It offers many possibilities and great flexibility. For example, it is possible to paint any colour you want. Installation is installed suspended or above a perforated suspended ceiling. can be supplied with different connection options, depending on whether the passive beam is to be installed individually or in series. Worth noting The radiation quotient of is as high as %, which results in low air velocities when the beam is placed above a perforated suspended ceiling. A low air velocity ensures a good indoor climate and eliminates the risk of draft problems. Lindab's chilled beams are Eurovent-certified and tested according to EN-, EN-. Key figures Length:..0 m Width: 0 mm (). 0 mm (), mm (), 0 mm () and mm () Product height: mm Capacity: Cooling effect of W 0

4 0 Radiation exchange in chilled beams creates no air movement Function As cold water passes through the chilled beam, the warm air from the room is cooled on the cold surface of the beam. The cooled air (which has a higher density) then streams through the chilled beam and down into the room (see Picture ). This leads to air circulation in the room, where warm air from the room is continually replaced by cooled air. The cold surfaces of the beam also absorb heat radiation from warmer surrounding surfaces. The high radiation quotient leads to direct heat exchange between the cold surfaces of the beam and the warm surfaces in the room. The radiation quotient for is approx. % of the total emitted cooling effect. This is a high quotient, compared to conventional finned battery beams, which have a radiation quotient of approx. %. Direct heat exchange, through a high quotient of radiation to the room surfaces, and a high cooling effect, even at lower room temperatures, allows a large amount of cold to be stored efficiently in the building structure during low-load periods. The overall result is that gives off more cooling energy during a -hour period than a finned battery beam. This means that a lower room temperature can be achieved. Optimal design Construction is a chilled beam that absorbs heat by both radiation and convection. By optimising the beam's radiation quotient, output has been increased by 0% compared to finned battery beams, without increasing the risk for drafts. is based on a method that is unique in the world: in a cold-rolling process, the copper pipe is connected by metallurgical bonding to a gilled aluminium sheet. The energy transfer between the cooling surface and the water circuit is made more efficient, which results in a high cooling effect per surface unit. The technology for the metallurgical bonding of copper and aluminium renders galvanic corrosion impossible. is available in widths from cm to cm. The length can vary from. m to.0 m. provides a high cooling effect per surface unit, which leads to resource-efficiency and a low weight for the product. is made of 00% recyclable materials. The water pipes are made of copper. Nevertheless, the water should be oxygen-free to prevent corrosion. Easy to clean Hygiene 's surface area is four times smaller than that of a corresponding finned battery beam with the same performance. All parts of the product are accessible for cleaning and inspection. These qualities, together with the relatively strong aluminium plate, make easy to wipe and clean. Picture. Cross-section of Lindab's unique strips. The rhomboid shape provides an efficient heattransfer surface. Picture. How works.

5 Versions Size: is available in five widths:,,, and cm (see Pictures to, on page ). All models are mm high. Installation: is mounted horizontally. Lengths: is available in lengths from. m to.0 m, in steps of 0. m. Water connection: is available with a variety of connection dimensions, 0,,, and mm, depending on the product's width and connection options. Surface treatment: is powder-coated; the standard colour is white, RAL 00. Plus features Factory preinstalled. Colour: can be coated in a variety of special colours (see picture ). Edge protection: For visible installation. Accessories Delivered separately. Control: Refer to separate brochure, Regula. Picture. with black coating, a plus feature. 0

6 Versions 0 Picture. - Picture. - Picture. - Picture. - Picture. -

7 Dimensioning - Cooling effect when installed above a perforated suspended ceiling. Example What is the output of a m - that is placed above a perforated dropped ceiling? The temperature difference between the room temperature and the average water temperature is assumed to be 0 C. The perforations in the ceiling consist of mm holes, with a degree of perforation of %. The ceiling consists of perforated panels with a total area of. m². The total ceiling area is m². Find the intersection point for the lines at % and mm in diagram. Follow the line to the left, from the intersection point, and read off the effect on the left scale for -. The value is. [W/m C]. This gives:. [W/m C] m 0 C = 0 W. The effect applies for the nominal water flow per strip = 0.0 l/s. To obtain a flow-adjusted effect, refer to steps to on the next page. You should check what the maximum output is for the suspended ceiling. Go straight to the right, from the intersection point for the lines at % and mm, and read off the value on the scale. The value is. [W/m² C]. This gives. [W/m² C] 0 C. m² = W. The maximum cooling output from the ceiling is higher than what the product gives. 0 - H-modell: [W/m C], 0,,, 0 0, 0 0 0, 0, Effect per metre of beam, per degree temperature difference between the average water temperature and the room temperature, [W/m C]. Note! The diagram applies to strip products installed above a suspended ceiling. The reduction is greater for battery products. 0 Hole diameter [mm] Degree of perforation open area [%] 0% 0% 0% 0% 0% [0%] Diagram., cooling effect when installed above a perforated suspended ceiling. [W/m² C] 0 Maximum output per m² of perforated ceiling area, per degree temperature difference between the average water temperature and the room temperature, [W/m² C].

8 0 Dimensioning - Cooling effects for suspended installation To calculate 's effect, follow the steps below.. At t (room average water). Read off the effect per metre and ºC in table.. Calculate the water flow using this effect.. Read off the number of parallel circuits in table.. Calculate the water flow per strip.. Read off the effect factor in diagram.. Multiply the effect by the effect factor.. Repeat steps to. Example What is the cooling effect of a. m with ø mm water connection? The room summer temperature is assumed to be.º C The cooling water temperature in/out of is /º C Answer Temperature difference t = room average water t =. - (+) / = K Model Effect (W/m C) Table., effect per metre and C. Effect factor Read off the effect for, in table. The value is. [W/m ºC]. Effect (P) =. x x. = W. Calculate the water flow using this effect, with the following formula: = P / (Cp x t) Where: = water flow [l/s] P = effect [W] C p = specific heat capacity [J/(kg K)] t = temperature difference in the water circuit in/out [K] = / (00 x ) = 0.0 l/s Read off the number of parallel circuits for with Ø water connection in table. The value is. The water flow per strip will be 0.0 / = 0.0 l/s. The effect factor, read off from diagram, will then be.0 and the new effect P = x.0 = 0 W. Calculate the new water flow using the new effect = 0 / (00 x ) = 0.0 l/s. The water flow per strip will then be 0.0 / = 0.0 l/s, and the effect factor approx..0. The effect factor read off is.0, and the heating effect is then calculated to be 0 W. Size Model ø0 ø ø ø 0 ø Table. Number of parallel circuits for, depending on model and connection alternative. T medelvatten C [l/s] Diagram. Effect factor, depending on flow per strip, average water temperature = C.

9 Air velocities in the living area, depending on the cooling effect Extensive measurements show that if is placed above a metal perforated suspended ceiling, air velocities in the occupied zone are reduced, compared to a suspended product. The extent of the reduction depends on the suspended ceiling's degree of perforation. Diagram shows the air velocities for with different cooling effects for four different perforations, as well as for suspended installation of and for finned battery beams. The output is also reduced compared to a suspended installation. For cooling effects, refer to diagram. Air velocities are reduced when is placed above a metal perforated suspended ceiling, the reason for this is that the perforated sheet is cooled by the increased radiation exchange between and the perforated metal. Moreover, the cold air spreads under the beam and increases the area of the cold surface. At the same time, the volume of air that passes through the perforated ceiling decreases; i.e. there is a change from convection to radiation. Radiation exchange in chilled beams does not create any air movement. [m/s] Lufthastighet Pressure drop 0, 0, 0, 0, Finned battery beam Effect Effekt [Watt/active [Watt/aktiv m] ovan above 0% perforering perforation eller or suspended som frihängande ovan above 0% perforering perforation ovan above 0% perforering perforation ovan above 0% perforering perforation Lamellbatteribaffel with fins, ovan above 0% perforering 0% perforation eller som or as frihängande suspended baffel beam Diagram. Air velocity as a function of cooling effect for chilled beams.

10 0 Couplings & connections Coupling options Model Connection options (mm) Minimum flow (l/s) Connection Inkopplingsalternativ options Connection Inkopplingsalternativ options MATNING Water Connection Inkopplingsalternativ options Connection Inkopplingsalternativ options supply Due to of the beam's "gills", its surface structure looks different, depending on the direction from which it is viewed. If products connected in series are to have the same appearance, the connection point should be oriented in the same direction throughout the room. Note! Connection option can be turned in both directions. Table. 's couplings & connections. Weight & water content Table shows Table. 's weight & water content Model Weight, [kg/m] Water content, [l/m]

11 's width & height, mm Length, mm: 0 0 As standard, is available in lengths from. m to.0 m, in steps of 0. m suspension points for lengths > m. L-0 Connection dimensions, mm Figure., width, height, length and connection dimensions.

12 0 Installation examples has a wide range of applications and can be installed in offices, exhibition halls and industrial premises or warehouses. is suitable for both visible and hidden installation. Hidden installation above a perforated suspended ceiling is the most common in office environments. During installation, it is important that the separation between the product and the ceiling be large enough. Otherwise, the output can be reduced because of insufficient air intake. The minimum acceptable distance varies depending on the width of the product. Table and figures to list the minimum installation dimensions that are required for each model, so as to avoid a reduction in 's efficiency. If the minimum installation dimensions are not met, the cooling effect of must be reduced in accordance with diagram. is light, and this makes the product easy to handle during installation. There are two suspension options for. can be installed using either a suspended wire or a threaded rod. Both the suspended wire and the threaded rod are easy to adjust, so as to achieve the necessary measurement between the product and the ceiling. Model A (mm) B (mm) C (mm) Table. Minimum installation dimensions, required by the respective models, to avoid a reduction in 's efficiency. Picture. Installation of with a suspended wire. Picture. Installation of with a threaded rod. A B C above a perforated suspended ceiling [%] Cooling effect 00 0 A B 0 0 A xa Percentage of the required clearance, dimension A [%] Diagram. Reduction of the cooling effect when dimension A is reduced.,xa,xa Figure -. Installation dimensions for. NB! To achieve low air velocities as per diagram, the distance between the beams should be at least 00 mm. A

13 Pressure drop in water circuit, cooling [l/s] ø ø ø m.. ø m 0.0 Diagram Calculate the total water flow in the circuit.. Read off the pressure drop, from diagram. = P / (Cp x t) = water flow [l/s] P = effect [W] C p = specific heat capacity [J/(kg K)] t = temperature difference in the water circuit in/out [K] Example: [kpa] ø0/ø ø0 ø ø0 / ø / ø ø0 ø ø ø ø A.m -- gives an output of 0 W. t = K = 0 / (00 x ) = 0.0 l/s The pressure drop in the water circuit is read off as. kpa. 0

14 Pressure drop in water circuit, cooling [l/s] ø ø m.. ø m [kpa] ø ø ø ø ø Diagram. Products connected in series Example:. Calculate the total water flow in the circuit.. Read off the pressure drop, for each individual product, with the total flow.. Add the pressure drop, for each individual product.. Add the pressure drop, for the other components. = P / (Cp x t) = water flow [l/s] P = effect [W] C p = specific heat capacity [J/(kg K)] t = temperature difference in the water circuit in/out [K] A total of kw must be supplied to a room, with a temperature difference of C between the supply and return water. m long --- are selected. The water flow in the circuit will be: 000 / (00 ) = 0. [l/s] Read off the pressure drop:. kpa Add the pressure drop for each individual product:. +. =. kpa

15 Control Lindab offers control equipment that is very simple to use. To avoid the heating and cooling being activated at the same time, the system is controlled sequentially (Regula Combi). It is also possible to control only the heating or the cooling (Regula Mono). For the technical data, refer to the chapter Regula. Colour As standard, is powder-coated in RAL 00, gloss value 0. Other colours may be ordered specially. Designations Product: Width:,,,, cm Connection dimensions, water: 0,,,, mm Coupling options:,, Length: Length in metres Plus features: See page Programme text s from Lindab Qty Product: ---, m 0 Plus features: Colour, RAL 00 (black) Accessories: No. Product: ---,. m Plus features: Edge protection Accessories: Regula Combi Regula Secura Cooling control valve Cooling actuator Product: ---,. m 0 Plus features: Edge protection Accessories: Regula Combi 0 Regula Secura 0 Cooling control valve 0 Cooling actuator 0 0