Cara kerja mesin coldstorage ‼️ Cara kerja mesin pendingin

Introduction

This tutorial explains how a cold storage machine, or freezer room, operates. The principles behind this machine are similar to those of household air conditioning systems, refrigerators, and car AC units. Understanding these fundamentals can help in maintenance and troubleshooting of cooling systems.

Step 1: Understanding the Refrigeration Cycle

The refrigeration cycle is the core of how cold storage machines function. Here’s a breakdown of the process:

1. Compression:

   • The compressor compresses the refrigerant gas, raising its pressure and temperature.
   • This high-pressure gas is then circulated through the system.

2. Separation:

   • The refrigerant gas travels through a pipe to an oil separator.
   • The oil separator removes oil from the refrigerant, which is essential for the compressor’s lubrication.

3. Return of Oil:

   • Once the oil level in the separator is adequate, it is sent back to the compressor through a small pipe known as the equalizer.

Step 2: Cooling Process in the Condenser

As the refrigerant continues its journey, it enters the condenser where the following happens:

1. Heat Release:

   • The refrigerant, now under high pressure and still in gas form, releases heat in the condenser.
   • This process transforms the refrigerant from gas to liquid.

2. Filtration:

   • After cooling, the refrigerant passes through a filter dryer.
   • This component removes moisture and debris from the refrigerant, ensuring system efficiency.

3. Observation:

   • A sight glass allows you to observe the refrigerant flow. You should see the refrigerant in liquid form under high pressure at this stage.

Step 3: Expansion and Evaporation

Next, the refrigerant moves to the evaporator through the expansion valve.

1. Expansion:

   • The expansion valve reduces the pressure of the refrigerant, transforming it from liquid to a low-pressure gas (or mist).
   • This phase change is crucial for the cooling effect.

2. Heat Absorption:

   • In the evaporator, the refrigerant absorbs heat from the surroundings.
   • As it absorbs heat, it changes back into a low-pressure gas.

3. Accumulator Function:

   • Before returning to the compressor, the refrigerant passes through an accumulator.
   • The accumulator ensures that any refrigerant that hasn’t fully evaporated is converted to gas before re-entering the compressor.

Step 4: Continuous Cycle

The process is cyclical and repeats as long as the cold storage machine is operational:

1. The low-pressure gas returns to the compressor, where it is compressed again.
2. This cycle maintains the cold environment necessary for storage.

Conclusion

Understanding how a cold storage machine operates is essential for effective maintenance and troubleshooting. Key takeaways include the importance of the refrigeration cycle, the roles of various components like the compressor, condenser, and evaporator, and the continuous nature of the cooling process. For further exploration, consider learning more about specific maintenance techniques or troubleshooting common issues in refrigeration systems.