Sponsored by HUMIDIFICATION
use an external energy source. The atomisation has a cooling eff ect on the room temperature, signifi cantly reducing the need for energy. Some pressured adiabatic systems are capable of working at capacities of up to 750l/hr, which is benefi cial to environments that require large humidifi cation loads, such as offi ces, data centres, hospitals or laboratories. The most eff ective adiabatic systems off er a free cooling eff ect of up to 30 per cent, providing savings on running costs in areas where cooling is necessary. Furthermore, in specialist environments such as cleans rooms and laboratories, there can be a risk of electrostatic charging resulting from objects attracting dust as a result of dry air. Regulating air humidity eff ectively reduces potential electrostatic discharges, which are likely to dry spaces less than 35%/rh.
Powered by a 230 volt single-phase motor, these units have an impressive absorption distance of 900mm irrespective of load, modular systems and duct work. Furthermore, since adiabatic systems do not require an external source of energy to the transform the water into vapour from humidifi cation, they have lower energy demands when compared to isothermal humidifi ers.
Public safety should also be taken into consideration in the majority of applications and in particular, public sector buildings such as hospitals and laboratories. There are numerous industry guides that must be consulted to specify the most eff ective humidifi cation solution. For all building services professionals, the ‘KS19: Humidifi cation’ guide by the Chartered Institution of Building Services Engineers (CIBSE), should be viewed as a must-read as it considers the ways to increase the humidity of air to ensure that it is maintained at the appropriate levels. For those who are particularly interested in the healthcare sector, authoritative guidance on public health and hygiene can be sought from CIBSE’s ‘TM13: Minimising the
HygroMatik’s HPS and LPS systems
H
ygroMatik’s HPS and LPS adiabatic high and low pressure nozzle
systems for air conditioning and ventilation units were designed to provide the highest level of hygiene.
Using HPS or LPS systems in conjunction with reverse osmosis will deliver demineralised water, ensuring that only the cleanest air is delivered. These combined systems off er hygienic optimum humidifi cation and a close control with an accuracy of +\-1% RH.
The adiabatic high pressure nozzle system HPS humidifi es the air in air conditioning and ventilation systems and provides very high humidifi cation performance for an extremely low energy requirement and with maximum control accuracy. Very precise stainless steel high pressure nozzles produce a very fi ne mist, which is very quickly absorbed by the air in the unit chamber.
On the other hand, The HygroMatik low pressure system LPS for adiabatic humidifi cation and exhaust air cooling in air conditioning systems is particularly easy to install, space saving, quiet and suitable for even short absorption distances. It is therefore excellently suited for the simple and fast upgrading of existing air conditioning systems.
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Risk of Legionnaires’ Disease’, ‘Guide G for Public Health and Plumbing’ or the American Society of Heating, Refrigerating and Air-Conditioning Engineers’ (ASHRAE) ‘HVAC Design Manual for Hospitals and Clinics’.
More recently the FETA Humidity Group has published a white paper, ‘Humidity and its Impact on Human Comfort and Wellbeing in Occupied Buildings’, demonstrating that buildings rely on a properly designed ventilation system
that provides an adequate supply of clean air. Installing an up-to-date HVAC system should be a prime concern for building owners and facilities managers to not only create a comfortable and compliant environment, but also lower long-standing costs from ineffi cient energy management. Altogether, the outcome will be fewer energy running costs, less sick days,and will also ensure the profi tability of commercial buildings in the future.
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