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Showing posts from March, 2013

Heater humidifiers

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Immerse heater humidification is becoming increasingly required in work specifications where: Humidity must be controlled precisely (museums,   laboratories, clean rooms); Water quality is not constant or is problematic (for example, aboard ships); Periodical maintenance needs to be minimised (using demineralised water).      Immerse heater humidifiers, unlike immerse electrode units, can operate on demineralised water, as they do not exploit the electrical conductivity of the water. Periodical maintenance can therefore be greatly reduced, due to the minimum formation of lime scale. Weighing against this, the resistive elements must always be completely immersed in the water, to avoid overheating, unlikely the situation with electrodes, in which the water level is adjusted to modulate the flow-rate of steam. The operation of an immense heater humidifier then requires water level sensors to ensure complete immersion of the electrodes, as well as compone

Gas-fired humidifiers

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Carel's extensive experience in the humidification sector has been used to develop the gaSteam range of gas-fired humidifiers, exploiting an energy source that is more economical then electricity. The humidifiers now have updated controllers, and the smallest model has now been upgraded to 45 kg/h (still below the 35 kW limit). The range thus now features the 45 kg/h, 90 kg/h and 180 kg/h models. Carel gas-fire humidifiers can run on both natural gas and LPG: the changeover is made by simply modifying a number of parameters, without the need to replace any parts. Cost effectiveness To generate 1 kg of steam at atmospheric pressure, considering all the various factors, requires around 750 Wh of energy, either electrical or from other sources. One of the main factors when choosing solutions in the field of isothermal humidification is therefore energy cost, particularly for heavy-duty applications. Gas can be considered an ideal solution in terms of energy source, ho

Centrifugal Humidifiers

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humiDisk is a small yet sturdy humidifier that uses a spinning disk to atomise water and transform it into millions of very small droplets that, blown by a built-in fan, are introduced into the environment, where they evaporate, humidifying and cooling the air. Very low power consumption humiDisk is a simple, economic and easy to maintain humidification system, with an energy consumption of just 220 W for 6.5 kg/h of capacity (31 W for the 1.0 kg/h model). Guaranteed Hygiene The water tank inside the humiDisk contains just 0.055 litres of water, which is atomised, at maximum capacity, in just 30s for the 6.5 kg/h model and 3 minutes for the 1 kg/h model . The water in the tank is therefore changed very rapidly, meaning the humidifier substantially works with non-stagnant running water, so as to guarantee the best hygiene conditions. Water used humiDisk can operate on both mains water or treated water. The quantity and quality of the minerals dissolved in the wa

optiMist

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Atomiser for evaporative cooling optiMist is an evaporative humidifier and cooler that atomises water into very small droplets which, by evaporating spontaneously, extract heat from the water, atomizing it successively through special nozzles. The sophisticated control system combines the action of an inverter, which controls speed and therefore pump displacement, with that of 2 solenoid valves that activate only the nozzles necessary. This allows the system to always work at the best pressure for atomizing the water, within a wide flow rate range. The cooling effect of the air is due to the spontaneous evaporation of the water droplets: the change of state from liquid to vapor takes place at the expense of the energy in the air, which cools down as a consequence. optiMist is a complete system, which includes humidification and evaporative cooling in a unique solution, which can be used to handle air in an AHU (air handling unit), and to humidify the flow air

humiSonic

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Ensuring comfort in every environment humiSonic is the new ultrasound humidifier developed by Carel. It was designed to regulate and keep the desired level of humidity for a specific room at a constant level. humiSonic, installed inside the fan coils, is the ideal solution to combine ordinary temperature control (guaranteed by the fan coils) with carefully controlled humidity. The combination and precise regulation of these two fundamental air characteristics ensure that comfort conditions are achieved and maintained in domestic and commercial environments. Thanks to the high frequency vibrations of the piezoelectric oscillator (1.7 MHZ), humiSonic is capable of producing extremely fine droplets with a diameter of about 1-5 µm. The forced channeling system installed between the battery and the air outlet nozzle easily and uniformly distributes the atomized water in the fan coil outlet channel. Providing humiSonic with the humidity probe and fl

Air Treatment Units

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In this complex moderns society, personal welfare and comfort are of crucial importance. Correct humidification , besides reducing suspended dust, allows those in closed environments to breathe well, without problems resulting from dryness of the primary airways. The reduction of skin evaporation from correct humidification also reduces the sensation of coldness and, consequently, the temperature can be reduced, thus saving on heating and limiting the dispersion of heat between indoor and outdoor areas. Air treatment units are made up of different sections, each one responsible for a particular function for different air treatments. Modularity is the most obvious characteristics of treatment units since these appliances are designed and sized based on specific requirements. Over the course of the year, these machines can perform various treatment functions: mixing, filtering and movement between recirculated air and outdoor air; pre-and post-heating of the air  cooling o

Electronic Expansion Valve

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The E3V completes the range of electronic expansion valves for medium capacity air-conditioning units: E3V is used on chillers, heat pumps and CCU with the EEV solution now being a standard for these products. The CAREL E2V , E3V and E4V series electronic expansion valves cover a range of cooling capacities from 1 kW to 250 kW. The modulation of refrigerant flow guarantees a wide operating range, due to the combination of fixed opening and the moving element with a travel of 15 mm driven by stepper motor. The E3V has been carefully designed down to the smallest detail, to guarantee high reliability, and ensures correct operation with fluid flow in both directions. This simplifies the refrigerant circuit for reverse-cycle operation and reduces installation costs. E3V is made from modular components that are assembled during installation; this solution simplifies maintenance and the inspection of the individual components.