HYBACO®
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HYBACO® Hybrid Recooler

© 201 Mountair AG | CH-Kreuzlingen | w w w.mountair

Introduction Mountair have been designing and producing hybrid recoolers for over ten years now. Each project carried out is unique and was designed, manufactured and assembled exactly according to customer requirements. Be it an individual hybrid recooler with a capacity of 200 kW or a connected circuit plant of 6 MW, Mountair puts your individual needs into practice. The know-how and service experience of Mountair enables it to react to events rapidly. Replacement of wear and tear parts, converting plant to meet changing circumstances in the operating parameters, repairs of plant...

Application In most cases hybrid recoolers are installed in combination with refrigerating machines. Here the recooler provides the cooling source for the refrigerating machines to which the thermal energy can be delivered at a higher temperature level. In case of hybrid recoolers, the air required to cool the medium (water or water/ glycol mixture) is loaded with significantly more thermal energy than in case of other recooling systems. Hybrid recoolers manage with less air through put than dry recoolers. This means fewer fans, which has a positive effect on noise levels and on the overall...

Compared to dry recoolers and adiabatic recoolers, hybrid recoolers show some marked benefits. The main advantage is that significantly lower recooling temperatures can be achieved. This substantially improves the COP of the refrige­ rating machine. As a result the power requirement drops and hence the operating cost of the whole refrigeration plant as well. Wasser Furthermore, evaporation means that markedly more thermal energy can be trans10% 15% 20% 30% 40% ferred to the air flow than is possible in case of dry recoolers or adiabatic recoolers 52 ° (see HX diagram). 50 ° Hybrid recoolers...

Designs H model The Hybaco® H model is an integrated hybrid recooler in an insulated housing. The housing is comparable with those of conventional HVAC plants and demonstrates the same properties. The advantage of this version is that such plants can also be installed indoors. The intake and exhaust ducts can be connected to the device as with HVAC plants and be introduced or led away as required. Similarly in this version, the sound pressure can be reduced with sound attenuators on any planning specification. V model The Hybaco® V model corresponds to the familiar recooler model for...

Hybaco® V model Figure – Heat exchanger in V arrangement – Quiet running axial fans – High efficiency EC drive motors – Hybaco® wetting equipment – Water pans – Circulation pump (1 pc./recooler) – Water level/measurement – Conductivity measurement – Water filter system – Fresh water and drain valves Components Heat exchanger The centre element of recoolers must meet the highest demands. High quality materials are used so that the Hybaco® recoolers are ”sea water resistant“. Hydrophilic AlMg3 fins and tin plated copper tubes in addition to outstanding corrosion resistance achieve the best...

Fans The decisive factor. Today’s often very high noise reduction requirements can only be achieved with the best fans. Mountair relies on continuity and installs quiet running axial fans in glass reinforced plastic (GRP). These fans are designed precisely for such applications: high volumes of air flow, low pressure loss, impressive sound level credentials and an excellent level of efficiency. Our reliable strong partner – Howden. Properties in overview: – Quiet running axial fans – Material: GRP – Direct drive – peeds: depending on design, S between 300 to 500 rpm – Outstanding sound...

Hybaco® Wetting Equipment P constant Feed pump Hybaco low pressure spray bars Hea te with xchang e evap hybrid orat ion Air pump The circulating water required for air humidification is deposited on the heat exchanger from above. The spray bars are operated under constant over pressure so that the water is evenly applied to the fins and ensures an even contact humidification. To ensure proper operation, the water quality and the water level are permanently monitored. If the quality no longer meets the specification, it is desludged and at the same time fresh water is added. This is also the...

Control – Request for water – Manual operation Features – ontrols: Schneider Xenta, Beckoff or customer C specific (e.g. Siemens, SAIA) – ndependent control unit per recooler plant I (master/slave) – Standard version with physical contacts – US interface for master/slave function and B integration into the building management system. Messages from external (standard): – Set point temperature cooler outlet (continuous) – Enable dry operation – Enable wet operation – Water feed line closed Messages from internal (standard): – Operating message – control – Operating message – pump...

Accessories and Options Mountair Hybaco® recoolers include all parts necessary and can be operated without any further components. In addition there are various accessories and plant extension options. These are mostly customer-specific and are designed, manufactured and assembled accordingly. The following are examples of additional options: – Air separation dampers – Louvres/roller shutters – UV desinfection plant – rost protection equipment F (for 100 % water operation) – Damage equipment – Dosing plants – Sound attenuators for fans – ntegration in the building management system I via...

EWZ Zürich Refrigeration Wagi 15 2 × 1550 kW, year 2013 © 201 Mountair AG | CH-Kreuzlingen | w w w.mountair.com 4

Hardturmpark BF C, Zürich 2 × 470 kW, year 2012 ETHZ BSSE, Basel 2 × 390 kW, year 2008 1 × 390 kW, year 2012 (extension) © 201 Mountair AG | CH-Kreuzlingen | w w w.mountair.com 4