About Refrigerators & Freezers:
About Refrigerators & Freezers
Refrigerators and freezers are essential appliances found in every modern home, shop, and industry at our AJ Trade Appliances. They keep food fresh, prevent spoilage, and allow long-term storage by using advanced cooling technology. To understand how they work and why they are important, let’s go step by step. We provide free delivery and also Provide Very Fast Delivery.
1. Introduction
The refrigerator is designed to keep food and drinks cool, usually between 2–8 °C. The freezer, on the other hand, keeps items at much lower temperatures, often –18 °C or below at our AJ Trade Home Appliances. Together, they slow down the growth of bacteria and extend the shelf life of food.
2. Main Components
Both refrigerators and freezers share similar parts:
- Compressor – Pumps the refrigerant and keeps the cycle running.
- Condenser Coils – Release heat to the outside air.
- Expansion Valve or Capillary Tube – Reduces pressure and cools the refrigerant.
- Evaporator Coils – Absorb heat from inside the unit.
- Refrigerant – A special cooling fluid that changes from liquid to gas and back.
- Thermostat – Maintains the desired temperature.
3. Stepwise Cooling Cycle
- Compression – The compressor squeezes the refrigerant, making it hot and high-pressure.
- Condensation – The refrigerant passes through condenser coils, releasing heat and turning into liquid.
- Expansion – The liquid refrigerant flows through an expansion valve, dropping in pressure and becoming very cold.
- Evaporation – The cold refrigerant absorbs heat from food items inside the fridge or freezer, turning back into gas.
- Recycling – The refrigerant returns to the compressor, and the process repeats.
This cycle constantly moves heat from the inside of the unit to the outside, keeping food safe and preserved.
4. Refrigerator vs. Freezer
- Refrigerator: Best for fresh food, fruits, vegetables, dairy, and drinks. Operates at higher temperatures.
- Freezer: Designed for long-term storage of meat, fish, frozen meals, and ice. Operates at much lower temperatures.
5. Types of Models
- Direct Cool – Requires manual defrosting, common in basic models.
- Frost-Free – Uses fans and heaters to prevent ice buildup.
- Top Freezer – Freezer at the top, fridge at the bottom.
- Bottom Freezer – Freezer at the bottom for easier fridge access.
- Side-by-Side / French Door – Larger models with stylish designs, often with water and ice dispensers.
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6. Benefits
- Keeps food fresh and safe.
- Reduces waste by storing leftovers.
- Saves money by buying in bulk and freezing.
- Energy-efficient models help reduce electricity bills.
- Essential for homes, shops, restaurants, and medical use.
7. Conclusion
At Our AJ Trade Home Appliances Provide refrigerators and freezers are more than just appliances—they are daily essentials. By using a stepwise cooling process, they keep food fresh, frozen, and safe for longer periods. Choosing the right model depends on storage needs, energy efficiency, and lifestyle. Whether for home or business, refrigerators and freezers remain vital for modern living at Our AJ Trade Home Appliances.
6. Uses
- Store fresh food (fridge) and frozen food (freezer).
- Preserve nutrients and extend shelf life.
- Special medical/lab freezers for vaccines, samples, etc.
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