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Jan 02, 2025
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IMR 4110 - Condensers & Evaporators
Clock Hours: 30
Delivery Mode on-ground
Course Description: Students learn the principles of various condensers and evaporators applications. Students will learn the typical operating conditions associated with condensers and evaporators. Various operating conditions will be addressed and identified as being normal or abnormal to indicate specific problems in the refrigeration cycle. Condenser and evaporator performance will be tested on various types of systems to determine capacity and efficiency. Proper maintenance procedures will be discussed and reviewed for the varying types of condensers and evaporators. Troubleshooting and evaluating techniques will be introduced to determine problem areas that may need to be addressed.
Student Learning Outcomes: Students will attain the necessary skills to be able to:
- Explain “commercial refrigeration”
- Define “high temperature applications”
- Define ” medium temperature applications”
- Define ” low temperature applications”
- Describe the evaporator used in commercial refrigeration
- Discuss “boiling and condensing” as related to commercial refrigeration
- Discuss the evaporator and boiling temperature
- Describe “dehumidification” as applies to commercial refrigeration
- Explain various conditions that affect evaporator heat exchange
- Describe different types of evaporators
- Describe procedures for determining an evaporator’s performance
- Discuss “latent heat” ratio
- Define “a flooded evaporator”
- Determine the performance of a “dry type” evaporator
- Explain evaporator superheat
- Discuss “hot pull down”
- Explain evaporator pressure drop
- Describe “liquid cooling evaporators” (chillers)
- Describe evaporators for low temperature applications
- Describe methods for evaporator defrost
- Evaluate the performance of a DX evaporator
- Check an evaporator under excessive load
- Observe the changes as the load decreases
- Explain the purpose of the condenser
- Explain the basic function of a water cooled condenser
- Describe the operation of a “tube in a tube” condenser
- Discuss problems associated with mineral deposits
- Describe “cleanable condensers”
- Describe a “shell and coil” condense
- Describe a “shell and tube” condenser
- Describe “waste water systems”
- Explain the “refrigerant to water” temperature relationship for waste water systems
- Discuss re-circulated water systems
- Define “cooling tower”
- Describe a “natural draft” tower
- Describe assisted draft cooling towers
- Describe “evaporative” condensers
- Discuss air cooled condensers
- Define “high efficiency” condensers
- Discuss problems with low ambient operation
- Define “head pressure control”
- Explain “using condenser superheat”
- Discuss “heat reclaim”
- Describe “floating head pressure”
- Discuss condenser evaluation
- Determine condensing temperature from the P/T chart
- Evaluate an air cooled condenser
- Evaluate a water cooled condenser
- Determine proper head pressure for an air cooled condenser based on operating conditions
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