Ammonia Refrigeration course - 1 day program
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This one-day course examines the usage of ammonia as a refrigerant. The different types of single-stage and two-stage ammonia systems, the reason/need for accumulators and intercoolers in ammonia refrigeration and the basics of the liquid recirculation system operation are also covered.

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Course topics

1. CHARACTERISTICS

Objective: Identify the characteristics of an ammonia refrigeration system.

2. SINGLE STAGE AMMONIA SYSTEMS

Objective: Summarize the primary components in single-stage ammonia refrigeration systems and describe their functions.

3. TWO STAGE AMMONIA SYSTEMS

Objective: Define the primary and secondary components of a two-stage refrigeration system and describe component functions.

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1. CHARACTERISTICS

Objective: Identify the characteristics of an ammonia refrigeration system.

  • Ammonia Sources, Uses & Chemical Characteristics
  • Hazardous Material Concerns/Effects
  • Materials & Safety

2. SINGLE STAGE AMMONIA SYSTEMS

Objective: Summarize the primary components in single-stage ammonia refrigeration systems and describe their functions.

  • Positive-Displacement Systems
  • Refrigeration Loads
  • Primary, Secondary Refrigeration System
  • Components

3. TWO STAGE AMMONIA SYSTEMS

Objective: Define the primary and secondary components of a two-stage refrigeration system and describe component functions.

  • Compression Ratio & Compressor Capacity
  • Two-Stage System, Performance & Components
  • Booster Desuperheater & Intercooler
  • Complex Two-Stage Systems

4. SUCTION ACCUMULATORS AND INTERCOOLERS

Objective: Examine why suction accumulators are needed and describe the functions.

  • Need for Suction Accumulators
  • Accumulator Design
  • Liquid/Vapor Separation
  • Intercoolers Types & Alternatives

5. LIQUID OVERFEED (RECIRCULATION) SYSTEMS

Objective: Explain the functions performed by and advantages and disadvantages of recirculation systems.

  • Recirculation Systems-Design & Function
  • Advantages & Disadvantages

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Day 1
Start Time, Introductions 08:00 - 10:00 am
Morning Break 10:00 - 10:15 am
Class Time 10:15 - 12:00 pm
Lunch 12:00 - 01:00 pm
Class Time, Afternoon Break 01:00 - 03:00 pm
Class Time, End Time 03:15 - 04:30 pm
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