 | | Energy-saving dryers - eight decisive advantages. | |
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 | Daily savings
KAESER energy saving dryers consume electrical power only when actually drying air. The energy-saving control uses a combination of compressed air temperature measurement, programmable logic control and a refrigerant compressor that adjusts the size of its compression chamber according to flow volume. Electrical power consumption is directly proportional to air flow rate. For example, at 40 % maximum air flow rate, electrical power consumption is only 43 % of rated maximum. The result: significant savings day in, day out, year after year.
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 | Minimal pressure drop for optimised energy costs
The generously proportioned separator and smooth-flow heat exchanger keep pressure drop over the dryer to an absolute minimum - appreciably less than other dryer designs. As a result, this enables the air network's maximum working pressure to be significantly reduced. This can help achieve considerable savings, as each 1 bar decrease potentially results in a 6 % reduction in energy consumption and a 25 % decrease in air leakage losses. In addition, KAESER energy-saving dryers also feature a contamination-resistant heat exchanger, which means that, unlike other dryers, they do not require a separate pre-filter. This achieves further energy savings and avoids additional investment costs.
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 | High performance stainless steel separator system
Together with solid particles up to three microns, the condensate that forms during compressed air cooling is removed efficiently and reliably from the air via a high performance coalescence separator. Furthermore, the system’s design ensures reliable condensate separation even under partial load conditions. A constant degree of separation is ensured from 10 to 150 % of nominal flow rate, even with widely fluctuating demand. This is particularly important for redundancy of dryers in large air supply systems.
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 | Premium quality plate heat exchanger
The air/air and air/refrigerant stainless steel plate heat exchangers were specially developed for use in refrigeration dryers. Generously sized copper piping not only ensures minimal pressure drop, but also simplifies installation of ducting and pipework. Furthermore, under normal conditions there is no need for an additional pre-filter, as all pipe work is both contaminant- and corrosion-resistant. All of these factors ensure that every Kaeser energy-saving dryer provides many years of reliable service and retains unrivalled residual value.
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 | Reliable and efficient condensate drainage
The ECO DRAIN condensate drain is equipped with an automatic level sensing control which opens a diaphragm valve that enables condensate to drain away when the collector tank is full. The electronics keep the valve open until the container is empty and close it again before any compressed air can escape.
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 | Industrial quality control cabinet for absolute safety
Every Kaeser energy-saving dryer is EN 60204-1 compliant and is tested for electromagnetic compatibility in accordance with applicable EMC standards. Unlike equipment conforming to VDE 07010, KAESER refrigeration dryers conform to a strict industrial standard and are equipped with a high-protection control cabinet and fuses for the control & power circuits. In addition, a control transformer ensures that the control circuits are DC-isolated from the mains. The whole system is designed with maximum safety and reliability in mind.
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 | Optional filter monitoring
Energy-saving dryers from Kaeser Kompressoren can be equipped with an optional FE micro-filter. This provides electronic monitoring of the filter and the high-performance separator system. Microprocessor-controlled filter monitors and 'Monitorboxes' are installed to generate and forward signals. This option also provides remote filter monitoring capability. The "Group" and "Safety" alarm contacts provide additional security for specialised air treatment requirements.
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 | Unrivalled reliability
Operation of the refrigeration dryer can be divided into four stages:
Stage 1: Warm, moist compressed air enters through the port (1) into the air/air exchanger (2) where it is pre-cooled by the cold, dried air leaving the dryer.
Stage 2: The air is cooled further to the dew point temperature in the lower part of the heat exchanger (3) by the refrigerant circuit (4).
Stage 3: Condensate formed as a result of the cooling process is removed from the air by the highly effective separation system (5). The condensate is removed from the separator by the automatic ECO DRAIN.
Stage 4: The dried air is reheated in the upper part of the heat exchanger (2) before leaving the dryer outlet (6).
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TG - TI
