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Cooling Tower Cold Climate Considerations

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Cooling Tower Cold Climate Considerations

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Questions and Answers

What method is sometimes used to prevent the basin water from freezing?

Solar panels

Thermostatically controlled electric heaters (correct)

Wind turbines

Hydraulic pumps

How does the indoor tank or dry basin method work in cooling towers?

It heats the water in the tower basin

It allows water to drain continuously from the tower basin to an indoor storage tank (correct)

It increases the water level in the tower basin

It pumps water from the indoor tank to the tower basin

What makes wood in cooling towers vulnerable to decay?

The presence of nails and screws

Oxidizing agents such as chlorine

Biological attack by microorganisms

Water-soluble extractives leaching away (correct)

What are the main agents causing delignification in wood in cooling towers?

Oxidizing agents and alkaline solutions Signup and view all the answers

How can biological attack on cooling tower wood be controlled?

Use woods with natural resistance to biological attack and treat the wood with preservatives Signup and view all the answers

What action must be taken if heavy ice forms on the inside of a cooling tower?

Directing water flow to the water basin beneath the tower using a bypass line Signup and view all the answers

What is the purpose of using a bypass line in cold weather during startup?

To direct water flow to the water basin beneath the tower Signup and view all the answers

How can airflow control with two-speed or variable speed fan motors reduce heat loss from the cooling water?

By reducing the amount of cold air passing through the tower Signup and view all the answers

What is the purpose of partially bypassing water flow during normal operations in especially cold weather?

To maintain a certain temperature in the water basin Signup and view all the answers

What precaution must be taken when shutting down a cooling tower in cold weather?

Preventing the water basin from freezing Signup and view all the answers