Microbial analysis of Heating systems' surfaces
Abstract
An analysis of experimental investigation focused on microbial pollution of heated was carried out for heating systems installed in different types of buildings as residential houses and civil buildings. The results point on importance of maintenance and cleaning the heating systems for quality of indoor air and occupants' comfort.
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Introduction
Good quality of indoor air is one of the most important requirements for indoor climate comfort. Especially dust concentration of microorganism growth in indoor air are closely related with respiratory problems and in final consequences with serious illnesses [1-3]. Hygienic quality of indoor air and for clearness of building surfaces as well as heating systems are key issues for the indoor climate comfort [4-6]. It has been a subject of the world-wide research programmes [7-11].
Heating systems have to be cleared and repaired. Cleaning of internal surfaces in buildings as floors, furniture, windows, indoor equipment is frequently completed their cleaning of radiators and heating surfaces is often neglected [12-17].
An analysis of experimental investigation focused on microbial pollution of heated surfaces is presented in the article. The analysis was carried out for heating systems installed in different types of buildings as residential houses and civil buildings. The results point on importance of maintenance and cleaning the heating systems for quality of indoor air and occupants' comfort.
Conclusion
Heating radiators a shape that gives possibility to dust settlement on them create opportunity to microorganism growth. It can be problematic in rooms with very low indoor temperature. Low -temperature heating systems with the service water temperature below 50 oC could be affected by microorganisms. It is very important to provide frequent revisions and cleaning of the heating systems in public and residential buildings.
Heaters with complicated shape and uneven surface could accumulate dust and for this reason they support the mould g rowth a microbial concentration. Low -temperature water heater systems (below 50 °C) give growth of mesophile types of organic pollution. For the low -temperature heating systems regular thermic disinfection is recommended for the heaters maintenance.
The heaters construction and easy -to-clean surfaces as well as convenient positioning in the building are key factor for elimination of dust concentration and organic pollution. Heaters with lamellas located in floors are directly exposed to the pollution and microbial contamination. Another problem could be uncontrolled amount of dust in places where people do not change their shoes. In public buildings with high occupancy the dust contamination was proven much more serious compared to dwelling where people w ear clear home shoes. High occupancy has also negative influence on microbial pollution.
It seems that frequent and thorough cleaning maintenance of heaters at public buildings is really necessary. Floor convertor heaters are not recommended for spaces wit h high hygienic demands as hospitals and care homes. Plain surface radiators positioned in easy -to –clean installations would be or convenient in these cases.
