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Passive Chilled Beams

Passive Chilled Beams
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Chilled Beams TROX GmbH e-mail trox@trox.de

Contents • Description Type PKV-R Passive chilled beams (without supply air) are used for dissipa- tion of high internal heat loads. The energy benefits by using water as a transport medium can in this product be fully utilised. In new buildings they offer low investment costs and high cooling capacity, and they are also the preferred option in refurbishment applications. Depending on the design brief for the room and its ceiling, the units can be installed flush in a false ceiling or can be freely They can be integrated with luminaires, speakers etc. We can offer an individual solution to...

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Constructions • Dimensions The type PKV passive chilled beam comprises a casing with optional frame, a cooling coil with connection flanges, and on request a perforated metal facing. Casing without frame has hanging brackets for use when When ordered with a frame (PKV-R), the unit can be supplied with nut serfs or on request with adjustable height hanging Casing and perforated metal facing are of galvanised steel sheet, frame (PKV-R) is of aluminium, cooling coil has copper tubes with formed aluminium fins and galvanised flanges. The standard surface finish of units without frames is black...

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It is essential for perfect convection that the air which has to be cooled down can flow unhindered into the coil. The best condition for this is when distance Z - lower edge of ceiling slab to upper edge of beam - is as large as possible The type PKV chilled beam is suspended with hanging brackets fixed on the sides of the casing. The type PKV-R chilled beam can be suspended either with height-adjustable hanging brackets or with fixed nut serfs. The chilled beam can be suspended from the ceiling slab with threaded rods or suspension wires. Type PKV • flush mounting Type PKV-R • freely...

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Reference values Water volume flow rate, cooling Water cooling capacity Specific cooling capacity per m Chilled water flow temperature Chilled water return temperature Chilled water mean temperature Temperature difference between water flow and return temperature Temperature difference between max. room air temperature and chilled water mean temperature Maximum time average air velocitiy measured approx. 1 m underneath the passive chilled beam Water-side pressure drop Free area of bottom perforated cover plate (100 % without perforated sheet metal) Correction factor for the relation Z to B...

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Technical data The exact match between the actual capacity and the required capacity can be achieved by adjusting the flow water temperature and / or the water flow rate. These will change the water-side Atw Water-side pressure drop All three chilled beams will be connected separately to the flow and return water Diagram VIII The air velocity 1 m below the passive chilled beam will be between 0.17 and Water-side cooling capacity QWK in W Water volume flow rate VWK in l/h measured approx. 1 m below the passive chilled beam. Water volume flow rate VWK in l/h Cooling capacity chilled beam in W/m

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Specification text Type PKV passive chilled beam is used to dissipate high internal heat loads. It comprises a casing, on request with aluminium frame for freely suspended installation, on request with perforated plate as front cover, and the cooling coil with flanges and aluminium Depending on the construction selected, suspension of the unit on site can be by hanging brackets, fixed nut serfs or height- adjustable brackets. Casing and perforated metal facing are of galvanised steel sheet, frame (PKV-R) is of aluminium, cooling coil has copper tubes with formed aluminium fins and...

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