Around 40% of German households, according to the Federal Statistical Office through a clothes dryer. Besides the classic condenser thereby establish more and more energy-saving heat pump dryer .First we will explain the names from the dryers briefly so you know exactly what it is actually: But where it is best to a clothes dryer set ? The answer to this question is simple: heat pump dryer can be virtually anywhere in the house up, as opposed to air-dryers for which you need a space where the exhaust hose can be directed outward.Panel our dryer has many similarities to that of washing machines on. In both types of appliances, there is a central element arotary switch may: ( "super soft" or "cupboard dry" example) set to the standard program selection, with which one the type of textiles and other parameters. Other features that are not selected with the rotary switch be, but with push buttons below the display, are additional features such as anti-crease, program duration or start / end time preset. In the section Special Functions we look at these features in detail. But first we deal with the programs that can be selected via the rotary switch. A program that can be found on all devices, even has to find, is the so-called. Cotton cupboard dry program , known as "standard program for cotton " drying is provided by normal, wet cotton laundry. That one has to find this program too, is because it to measure the energy efficiency is used for the EU energy label (for more details on this topic, see energy efficiency ). In the manuals of the manufacturer you can always find a reference to this program, which serves as a reference program for the Energy Label. For cotton, there are in addition to this standard program even further subprograms as extra dry , cupboard dry + or Iron dry , even Hand iron or Machine iron can be found here. All these programs have in common that you want to iron the fabrics usually after drying. In contrast, one finds - mostly on the other side of the knob - program points as " easy-care " or " blended fabric ". Again, there are again subdivisions in extra dry , cupboard dry or Iron dry . These are usually but non-iron fabrics or those that need to be ironed only lightly. The drying result may vary depending tissue vary. The control panel of a heat pump dryer enables the choice of drying program and other additional options. In addition, there are some programs that are indeed available on all devices, but often have different names. A program offering all dryer is, for example, the wool program , suitable for woolen garments and textiles from wool blend fabrics, eg pullovers, cardigans and stockings. There are still, "down", programs like "Jeans" "Sportswear" or "silk", which are described in detail in the manuals. The program selection is so the variety of fabrics adapted so that it also does not have the right large total number should be surprised by drying programs. In truth, there are many more programs because yes to most of the adjustable via the knob Default programs nor the so-called. " Additional functions " can be connected as an option. For details, see the section Special Functions .The heat pump is of course the central part of a heat pump dryer, still some part of the understanding of the art of this dryer more. To better understand the technology, we just follow the path that the warm air inside the dryer takes:What are the advantages over pure condenser dryers without heat pump?Not all tumble out our comparison tables have a display in which the current program and other information are displayed digitally. Regardless of the appearance on a display or LED light inside the user a lot of details about the aktellen state of the dryer but do not come: Most heat pump dryer (and also condensation dryer) have below the display different pushbuttons, with which one additional options can be switched on for the drying programs. We mention here some of the more common of these special features:Analogous to the washing machines and dishwashers are also found on the clothes dryers known EU energy label .Manufacturers are under a regulation of the European Commission committed for several years to mount this additional information for purchasing decision on the devices (this is, however, so far only for large electrical appliances). A +++ is currently the best energy rating. In our comparison tables, the respective energy efficiency classes are listed , Please note that the condenser without heat pump consistently poorer energy rating ( "B") than those with heat pump. All large electrical appliances are therefore delivered with an EU data sheet, which fully describes the graphic information of the EU energy label with words ,The main parameters of this EU data sheet we explain below:Our comparison table for a detailed list and description of the main features of the device. You will also find the calculated final grade , the Amazon valuation and the best deals for each model. Clicking on the final grade will take you for the detailed calculation of the score, the results from the category ratings and the percentage of the category in the overall result. If you agree with a device, so you can purchase it via the specified online ordering. We ourselves do not sell products. Our goal is to provide you useful information to make an informed buying decision available.
Installation types / types
Note: A heat pump dryer loaded its environment neither moist nor with hot exhaust air because both the heat pump in a closed circuit is recycled. Moist warm air is indeed the ideal breeding ground for mold (link is external), and one might not even have anywhere else in the cellar in the house.In condensation dryers which operate without the heat pump and use a closed circuit for the process air, although no "warm and humid" air is discharged to the outside, but it has to cool outside air to the condenser to allow the condensation at all. The heat released during condensation process is not discharged into the atmosphere and is not reused (as in the heat pump dryer), but dissipated as heat in the main room. In winter, therefore, you can even save heating energyin the room where. There is nothing wrong, the clothes dryer (with or without heat pump) in the same room set up, which also houses the washing machine. If the two devices side by side, you can transport the newly spun washing even without laundry basket from one device to the next. With a vented dryer this type of installation would, however, only possible if the washing machine would be placed in that room, in which the moist air is fed via a tube to the outside (usually a basement room). All dryer in our comparison tables are front loading , where one from the front through the drum door fills the laundry and can (not always!) look in the interior. Most also have a drum interior lighting that is only turned on during filling and unloading the laundry. And so this process is optimally adapted to the conditions of the site, one can on many models even the doorstopchoose - the left or right. The illustration shows a front loading heat pump dryer from Whirlpool. The desired door hinge - left or right - can the majority of devices are freely chosen.
Drying programs and operation
Technology: How does the heat pump?
The laundry drum
Depending on the drying program Warm air is fed into the drum filled with laundry. The warm air is already part of the heat pump - below we explain how the heat pump out cold air makes hot. To ensure that laundry is exposed as uniformly as possible from all sides to the air flow, put the dryer reversing drum movements a, ie they return for a (selectable with many devices) period, the rotation of the drum in order in the opposite direction. Since the led into the drum air is warm, which leads to an evaporation of the water in the laundry. The process of evaporation requires energy, which is taken from the warm air, it is hereby somewhat colder.
Now the warm and simultaneously wetted by the evaporated water process air is in the evaporator passed the heat pump. What evaporates because in this part of the heat pump? Not the water! No, it is the refrigerant , which constantly rotates similar to the process air in the heat pump. As strange as it sounds, without this refrigerant would be Wärempumpe unable to heat the cooled air back and thus carry on the process of evaporation in the washing drum. But let's look more closely at what happens in this evaporator: he is of the very cold, still liquid refrigerant surrounded, which evaporates even at very low temperatures (the boiling point of such refrigerant is approximately -30 degrees Celsius!). Therefore, the warm moist process air causes evaporation of refrigerant, because it condenses in this relatively cold environment (hence condenser!). The evaporator is therefore simultaneously a capacitor for moist, warm process air, that is also the condensed water is drained here at this point. And the amount of heat that emits moist, warm process air during condensation of the refrigerant is equal to the heat of vaporization of the refrigerant.
The compressor and condenser
From evaporator (who also is a capacitor) now lead 2 ways to a further capacitor , in which the process air is brought back to the required temperature: this is one of the path taken by the vaporized refrigerant. Namely, in a compressor passed (compressor), where it comes under significant pressure. The pressure increase also increases the temperature of the vaporized refrigerant and can then in the above-mentioned further capacitor in turn condense now, and that is: give its condensation heat to the colder process air, namely on the 2.Weg (without a compressor) directly to this condenser was passed. Now we are back where we started: the warm (but now dry!) Air is in the guided washing drum and can again absorb moisture .
Note: If the air flow is reintroduced into the washing drum, one assumes, of course, that it is cleaned of Flusenresten and really only consists of pure air. After drying, should clean the condenser regularly, because there just accumulate with time fine lint from the laundry from. But here too the producers have thought of the user to avoid such chores. Many condensation dryers because there are nowself-cleaning condensers . In such devices, the capacitor is flushed several times automatically during each drying cycle.Premium condenser dryer as this Bosch model feature called. Self-cleaning condensers. The device ensures that the condenser cleaned automatically during drying (flushed) is.