Cooling Systems Flashcards by exekiel delos reyes

Q

Cooling System

A

Removes excess heat from plant

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Q

Heat Rejection

A

Process of releasing waste heat

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Q

Condenser

A

Turns exhaust steam into water

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Q

Cooling Water

A

Water used to absorb heat

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Q

Cooling Tower

A

Structure that cools warm water

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Q

Natural Draft Tower

A

Uses natural air flow

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Q

Mechanical Draft Tower

A

Uses fans to move air

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Q

Induced Draft Fan

A

Pulls air through tower

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Q

Forced Draft Fan

A

Pushes air into tower

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Q

Once-Through Cooling

A

Water used only once

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Q

Closed-Cycle Cooling

A

Water reused after cooling

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Q

Wet Cooling Tower

A

Uses water evaporation

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Q

Dry Cooling System

A

Uses air instead of water

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Q

Hybrid Cooling

A

Combines wet and dry cooling

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Q

Cooling Pond

A

Large pond for heat removal

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Q

Cooling Range

A

Temperature drop in tower

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Q

Cooling Approach

A

Difference from wet-bulb temp

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Q

Wet-Bulb Temperature

A

Lowest cooling temperature

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Q

Makeup Water

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A

Replaces lost water

Q

Blowdown

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A

Removal of concentrated water

Q

Drift Loss

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A

Water lost as droplets

Q

Evaporation Loss

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A

Water lost as vapor

Q

Circulating Water Pump

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A

Moves cooling water

Q

Heat Exchanger

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A

Transfers heat between fluids

Tube Bundle

Tubes inside condenser

Fouling

Dirt buildup on surfaces

Scaling

Mineral deposits

Corrosion

Material damage due to water

Biofouling

Growth of organisms

Cooling Load

Heat to be removed

Thermal Efficiency

Plant efficiency affected by cooling

Condenser Vacuum

Low pressure in condenser

Back Pressure

Pressure at turbine exit

Cooling Tower Fill

Increases contact area

Drift Eliminator

Reduces water loss

Louvers

Controls airflow and splash

Water Treatment

Improves water quality

Chemical Dosing

Adds treatment chemicals

Anti-Scaling Agent

Prevents scale buildup

Corrosion Inhibitor

Prevents corrosion

Environmental Impact

Effect on surroundings

Thermal Pollution

Heating of natural water

Heat Sink

Medium that absorbs heat

System Efficiency

Effectiveness of cooling

Operation & Maintenance

Care of cooling system