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![Air-water systems Design manual - 1](https://img.directindustry.com/pdf/repository_di/16696/air-water-systems-design-manual-132007_1m.jpg)
The art of handling air Air-water systems for air conditioning Design manual
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2 Contents Experience and innovation 3 Air – water 4 System overview 6 Passive cooling systems 10 Passive chilled beams 13 Chilled ceiling components and elements 18 Induction units 22 Active chilled beams 26 Multi-service active chilled beams 34 Under sill induction units 36 Under floor induction units 40 Façade ventilation units 44 Under sill units 53 Under sill units for projects 54 Under floor units 55 Standards and guidelines 56 Documentation 57 Project management 58 References 59 Design manual | Air-water systems for air conditioning Multi-service active chilled beam MFD
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TROX understands the art of competently handling air like no other company. Working in close partnership with sophisticated customers all over the world, TROX is the leader in the development, manufacturing, and sale of components and systems for the air conditioning and ventilation of internal spaces. The systematic research and development associated with individual products continues to expand based on project specific requirements. With its customer-specific solutions, TROX sets a trailblazing standard and continues to enter new markets and maintain sustainable business opportunities....
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4 In what circumstances should air-water systems be used? For many air conditioning tasks, the internal environment is both contaminated by smells and pollutants and heated by external and internal thermal loads. Machines, devices, lighting equipment, and even the users of the space cause air contamination and thermal loads, all of which should be taken into consideration during the design. In meeting rooms, cinemas, and theatres, people are the main cause of air contamination. Good air quality can only be achieved by providing an adequate quantity of clean fresh air that takes occupancy...
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Air for the people – water for the loads 5 What are the architectural advantages? • Improved efficiency of space utilisation Air-water systems require comparatively low air flow rates, this means that the required air supply and extract duct cross sectional areas are significantly reduced. • Architectural flexibility With the ability to install units in the floor, ceilings or walls/façades there is always an option to meet specific requirements. • Ideal flexibility in change of usage Thanks to the modular configuration of air-water systems it is possible to change the usage of the building...
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6 System overview Passive cooling systems Induction units Façade ventilation units Page 10 Page 22 Page 44 Passive Chilled ceiling Active Under sill Under floor Under sill Under floor chilled beams components chilled induction induction and elements beams units units units units Page 13 18 26 36 40 53 55 Type of building Hall • Hotel • • • • • School, university • • • Office, administration • • • • • • • Airport, train station • • • Installation location Ceiling Flush-mounted • • Freely suspended • • • Floor • • Interior wall • External wall/façade • • • Air diffusion Mixed flow • • • • •...
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Building types The initial selection of a system type can be based on the proposed layout and function of the building. • Hall In exhibition halls the heat load mainly comes from lighting and equipment on the exhibition stands, this is usually greater than that from the people attending the exhibition. In a factory environment there are generally few people with the main heat loads associated with the machinery. In all these applications large ceiling heights impose special requirements for the air distribution systems. • Hotel The quantity of fresh air for a hotel bedroom is usually based...
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Installation locations Every system is designed and optimised for the required installation location. When the location has been established, certain systems become part of a preliminary selection. Ceiling In many projects a false ceiling exists or is in the design. So air-water systems are ideal for integration into any kind of ceiling. Chilled beams and chilled ceiling elements in exists or is in the design, especially when freely suspended. Floor In modern office buildings, false floors are a part of the standard equipment. The entire open space underneath the false floor, however, is...
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9 Functions The function of the system is essentially divided into the type of air handling and subsequent air treatment. • Façade ventilation units directly provide filtered fresh air to the space. Depending on selection heating and/or cooling can be provided. • In the case of induction units, the secondary induced air is suitably tempered through either heating or cooling coils. System overview Performance data Essential performance criteria for system selection include the required fresh air flow rate and cooling load. Induction units are supplied by the centralised air handling system...
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10 Passive cooling systems Hubert Burda Media Tower, Offenburg, Germany
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11 Functional description The surfaces of passive cooling systems remove heat and transfer it to water, which acts as a transport medium. Heat is transferred via radiation and/or convection. Various systems have different proportions of radiation and convection. The radiation principle Between surfaces with varying temperatures, heat is transferred from the warm to the cold body through radiation (electromagnetic waves). Of the passive cooling systems, the (radiation) chilled ceilings remove the greatest amount of heat through radiation. The surfaces of the heat sources, such as people,...
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Design information Air quality The passive cooling system only deals with cooling loads. A ventilation or air conditioning system is recommended to maintain the air quality . The fresh air requirement is usually relatively low (normally 2 to 3 air changes per hour). The ventilation system has the following essential functions: • Fresh air supply for the occupants • Extract of hazardous substances • Control of relative humidity Thermal output 100 % of the thermal performance of passive cooling systems is produced through heat exchange with chilled water. The cooling capacity is mainly...
Open the catalog to page 12All TROX catalogs and technical brochures
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