Trane trg-trc005-en manual Air-Cooled Condensers

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period two

Condensers

notes

Refrigeration

System Components

period two

Condensers

Figure 8

The first major component to be discussed is the condenser. The condenser is a heat exchanger that rejects heat from the refrigerant to air, water, or some other fluid.

The three common types of condensers are air-cooled, water-cooled, and evaporative.

Air-Cooled Condenser

condenser coil

Air-Cooled Condensers

propeller fan

outdoor air

subcooler

Figure 9

A typical air-cooled condenser uses propeller-type fans to draw outdoor air over a finned-tube heat transfer surface. The temperature difference between the hot refrigerant vapor that is flowing through the tubes and the cooler outdoor air induces heat transfer. The resulting reduction in the heat content of the refrigerant vapor causes it to condense into liquid. Within the final few lengths of condenser tubing (the subcooler), the liquid refrigerant is further cooled below the temperature at which it was condensed.

TRG-TRC005-EN

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Contents Air Conditioning Clinic Refrigeration System Components Comment Card One of the Fundamental SeriesBusiness Reply Mail Refrigeration System Components Preface Refrigeration System ComponentsContents TRG-TRC005-EN Introduction Vapor-Compression RefrigerationRefrigeration Cycle Refrigeration CyclePeriod one Condenser Condensers Air-Cooled CondenserAir-Cooled Condensers Effect of Subcooling Centrifugal Fan Air-Cooled Condenser Evaporative CondenserEvaporative Condensers Water-Cooled Condenser Water-Cooled CondensersCooling Tower Condenser Control Condenser CapacityCondenser Control Condensing Temperature Control Vary Entering Water Temperature Vary Condenser Water Flow RateCooling Tower Bypass Air-Cooled Condenser Control Condenser Flooding ControlCondensers Evaporators Finned-Tube EvaporatorFinned-Tube Evaporators Turbulent Flow Superheat Shell-and-Tube Evaporator Shell-and-Tube EvaporatorsEvaporator Control Evaporator ControlFinned-Tube Evaporator Control Face-Split Arrangement80ºF Intertwined Arrangement Row-Split Arrangement Shell-and-Tube Evaporator Control Expansion Devices Expansion DeviceThermostatic Expansion Valve TXV ControlTXV TXV TXV Operation Psia TXV Superheat Setting Too much superheatAccessories Solenoid ValveSolenoid Valve Period five Liquid-Line Filter Drier Liquid-Line Filter DrierSealed type Moisture-Indicating Sight Glass Moisture-Indicating Sight GlassSuction Line Filter Suction Line FilterHot Gas Muffler Hot Gas MufflerShutoff Valve Shutoff ValveAccess Port Access PortReview Review-Period OneReview-Period Two Air-cooled condenserReview-Period Three Review-Period FourReview-Period Five For more information, refer to the following references Quiz Questions for PeriodQuiz Answers To C To GGlossary Glossary Glossary Trane Company

trg-trc005-en specifications

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