Bacteria types pdf evaporative cooling

The air handling system then delivers cold air towards, and hot air away from, the building interior. While any hot or cold water system can be prone to an increase in legionella bacteria given the right conditions, evaporative cooling towers and similar wet systems may pose a particular risk as they have the potential to spread water as a fine spray over large areas up to 6km. The control of legionella bacteria in evaporative cooling systems technical guidance this is a freetodownload, webfriendly version of part 1. Management and control of evaporative cooling and other high risk industrial water systems qualification specification section 2 p903 at a glance what is the objective. The control of legionella bacteria in evaporative cooling systems. Evaporative cooling, effectiveness, performance, energy saving.

To provide an overview of legionella bacteria risk, and how it can be controlled in evaporative cooling and other highrisk industrial type water systems in compliance. Water is cooled in one or more cooling towers and delivered to an interface with an airhandling system, allowing the water to cool the air. Evaporative cooling is a physical phenomenon in which evaporation of a liquid, typically into surrounding air, cools an object or a liquid in contact with it. Evaporative cooling design guidelines ced engineering. Microbiological control strategy in cooling tower systems. Evaporative cooling design guidelines manual iii evaporative cooling design guidelines manual for new mexico schools and commercial buildings principal investigator. Controlling legionella in evaporative cooling systems. P903 proficiency qualification legionella management and. There is a reasonably foreseeable legionella risk in your water system if. Legionella bacteria in evaporative cooling systems. Evaporative cooling occurs when air, that is not too humid, passes over a wet. Bacteria are introduced into the cooling water system from the air, the makeup water, or a process contamination.