Skip to main content

Legionella Bacteria

A type of pneumonia can be lead to fatal due to the presence of bacteria present in large air conditioning plant of ships , building etc.

How this bacteria breed and reason for its growth

These bacteria basically breed in stagnant water or wet deposits of sludge and slime.

Possible areas in the plant where they can be found

Air inlet area below the cooler (stagnant water)

In the Air filter

In the humidifiers of water spray type

In the damaged insulation

Guidelines to the problem

Sterilization is the technique used for cleaning these bacteria .

50 ppm super chlorinated solution is used as sterilization agent for the cleaning of the filters , drains of coolers , humifiers etc.

Note

Regular inspection should be carried out and sterilization should be done within three months of cooler.

While humidifier of water spray type should be regularly cleaned .

Knowledge Booster

Disease due to bacteria are Pneumonia , Tuberculosis , Typhoid , Cholera , Tetanus, Syphilis , Plague , Gonorrhea etc.

Labels:

Comments

Post a Comment

Popular posts from this blog

Why Distilled water is not circulated in the pipelines ?

1.Why Distilled water is not circulated in the pipelines ? Ans. In Fwg distilled water is generated still it is not directly used in Boiler without chemical dosing even it is free from contaminants . The reason to the question is distilled water ready absorption carbon dioxide and tends to become slightly acidic which can cause corrosion . 2. What is the highest temperature at which a fuel of 60 deg Flash point should be heated to achieve a certain viscosity? Ans. Less than 20 deg of its Flash point i.e 40 deg . And the reason is near its flash point tempeature fuel starts to vaporise 3. What is the percentage water of get distillated from 100% of sea water? Ans. It is around  50% rest do formation of brine , scale of carbonates and bicarbonates .
3 comments
Read more

Difference between Attemperator and De-superheater

Attemperator are fitted in order to keep the steam temperature in the final stages of the superheater within certain desired limits . This is done for two main reasons . 1. The most important is the protection of the superheater tube material from the effects of overheating. *Mild steel superheater tubes tubes should not be subjected to steam temperatures in excess of 455℃. 2. The formation of bonded deposits on superheater tubes can be reduced if steam and gas streams within certain temperature ranges are prevented from coming into contact of each other. De-Superheater is used to reduce the temperature of a quantity of superheated steam and make it suitable for used in auxiliary services requires low temperature or saturated steam . *The reason for doing this way rather than by taking the saturated steam direct from steam drum , is to protect the superheater , these must be protected against overheating under all conditions of load by circulating steam through them . *Al...
Post a Comment
Read more