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Type PKV
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Passive Chilled Beams Type PKV TROX GmbH Heinrich-Trox-Platz D-47504 Neukirchen-Vluyn

Contents · Description Description Constructions · Dimensions Installation · Assembly Technical data Order details Type PKV-R Description Passive chilled beams (without supply air) are used for dissipation 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...

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Constructions · Dimensions Constructions 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 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. Casing without frame has hanging brackets for use when installing the unit. When ordered with a frame (PKV-R), the unit can be supplied with nut serts or on request with adjustable height hanging brackets. The standard...

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Installation · Assembly 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 (optimally Z ≥ B/2). The type PKV-R chilled beam can be suspended either with height-adjustable hanging brackets or with fixed nut serts. The type PKV chilled beam is suspended with hanging brackets fixed on the sides of the casing. The chilled beam can be suspended from the ceiling slab with threaded rods or suspension wires. Type...

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Technical data Nomenclature Reference values ‡WK in l/h WK in W ªWK in W/m W/m2 tWVK in °C tWRK in °C – in °C tw in °C tR ∆tW in K – ∆tRw in K tWVK tWRK tR ‡WK – ∆tRw Chilled water flow temperature Chilled water return temperature Room air temperature Cold water volume flow Temperature difference between room air temperature and chilled water mean temperature Example of a passive chilled beam Water volume flow rate, cooling Water cooling capacity Specific cooling capacity per m or per m2 Chilled water flow temperature Chilled water return temperature Chilled water mean temperature Max. room...

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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 ∆tW correspondingly. Diagram VII Water-side pressure drop 0.9 kPa/m · 2 m = 1.8 kPa All three chilled beams will be connected separately to the flow and return water pipework. Diagram VIII The air velocity 1 m below the passive chilled beam will be between 0.17 and 0.23 m/s ! Correction factor – water volume KW Water temperature diffrence ͬtw in K Water-side cooling capacity Perforated...

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Order details Specification text Type PKV passive chilled beam is used to dissipate high internal heat loads. 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. 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 fins. Depending on the construction selected, suspension of the unit on site can be by hanging brackets, fixed nut serts...

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