The dimensioning study of misting equipment, and the supply of modern automated adiabatic cooling systems were successfully completed, in order to increase efficiency in six chillers of Liebert and two heat pumps of CARRIER, by the experts in high pressure misting systems of ANDRIANOS
The advanced automatic adiabatic cooling systems of ANDRIANOS are the optimal solution to effectively reduce the temperature of incoming air in the condensers of the outdoor refrigeration units and in general of the HVAC units, resulting the significant increase in their efficiency.
The problem: frequent faults and shutdowns of compressors of chillers, due to high temperatures, in two large buildings, in Larissa and Athens.
Both companies trusted the experts of ANDRIANOS to find the right solution to this serious problem that occurs in the condensers, when they have to convert high pressure superheated steam into a coolant of the same pressure, since the ambient temperature is too high and the concentration process is difficult.
With the specific study and installation of ADRIANOS adiabatic cooling system, the temperature of the incoming air in the element is dramatically reduced and thus a lower condensation temperature is achieved. In this way the compressors operate without much pressure and the refrigeration units greatly improve their efficiency, thus saving significant energy and at the same time significantly increase their lifetime over a number of years.
Temperature difference of the incoming air in the condensers of the chillers, before (47.1oC) and after (34.4oC) the operation of the adiabatic system.
The solution to the problem: Automatic adiabatic cooling system:
Objectives of ANDRIANOS specialists was firstly to be studied a system with correct dimensioning of the equipment and then setting the right regulatory and its proper operating parameters. Thus, the new adiabatic cooling system effectively reduces the temperature locally and without losses, so that the incoming air to the condensers is lower. The drop in temperature that will be achieved, on average, with the adiabatic cooling system it is 15 ° C! (In special temperature cases the temperature drop can be even greater).
In a standard air-cooled power units, if the temperature which will flow into the condenser is less than 6 ° C, it will result an efficiency improvement of the unit by 14% and if it is lower by 12 ° C the efficiency improvement will be about 25-30% greater, always depending on the current atmospheric conditions.
In the special parameters that took place, the very significant degree of HRS temperature under-execution of the high-pressure pump was also adjusted. All necessary actions are regulated through the advanced digital Tmp control box operation and operation of the adiabatic system.
The operation of adiabatic systems is set to start automatically, when the temperature received by sensor T, has reached levels that have been set specifically for each case, through the parameters in the Tmp control box and always according to the degree of lag of the on / off of the pumps.The high-pressure spray pumps were dimensioned depending on the needs of each project and the appropriate machinery and equipment were selected for their perfect and guaranteed proper operation.
These new installations of automatic adiabatic cooling systems in six LIEBERT chillers in the big Communication building in Larissa and two 500Kw CARRIER heat pumps in a central hotel in Athens that took place last summer, has resulted in immediate improvement of the operation of the machines and consequently the efficiency of the air conditioning systems, especially on very hot days from early spring to autumn. In addition, we achieved a significant energy savings during these months, compared to previous summer seasons.Result of all these, was measurable savings which will bring the very rapid amortization of their investments, leaving our new customers completely satisfied!
Spray detail on a high-pressure spray nozzle element
Summary - Automatic Adiabatic Cooling Systems to increase the efficiency of refrigeration equipment
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Improving the efficiency of the 6 LIEBERT chillers and the 2 CARRIER heat pumps.
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External protection of condensers from salts and sediment- water, solar radiation and dust.
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Increased machines lifespan
Β) Summary Benefits and Advantages
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Significant reduction of the inlet air temperature in the condensers ± 15 ° C
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Gradual amortisation of costs through the reducing of energy consumption
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Increase SEER efficiency of refrigeration units up to 40%
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Major reduction in energy consumption by up to 37%
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100% automated operating system
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Increasing the lifetime of them
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Low start-up and operating costs
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Fast and flexible installation
The 15 years of experience and strong know-how of ANDRIANOS specialists, in combination with the continuing training in new and more advanced misting systems, guarantee the reliable and successful results in every application of the Industrial sector.
ANDRIANOS in full compliance with requirements of new ISO9001: 2015. It was certified for this by the Certification Body TUV Austria Hellas and at the same time is the only certified company on marketing, distribution, installation and technical support of high pressure misting systems in Greece.
Its main occupation since 1994 is the state-of-the-art technologies in heating, air conditioning and energy saving, providing high performance and efficient products. It invests in the study and know-how of dynamic sectors, in the direction of RES, energy saving and environmental protection, with quality projects and quality building installations with low operating costs, without technical problems and with respect for the environment.
For direct communication about the Misting & Humidity Control systems call +30 27210 23124 or send an email to
