5 Things to Know Before Buying Truck Electric Refrigeration Unit

In the world of logistics and transportation, particularly in a tropical climate like Singapore’s, the ability to transport temperature-sensitive goods effectively is crucial. Freezer trucks, equipped with advanced refrigeration systems, play a vital role in ensuring that perishable products reach their destinations in optimal condition. This comprehensive guide will help you understand how to choose the right truck refrigeration unit for your needs, focusing on key factors, advanced features, and solutions to common challenges.

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Freezer trucks are essential for businesses that deal with perishable goods. These vehicles are specifically designed to maintain a consistent low temperature, ensuring that items such as food, pharmaceuticals, and chemicals remain fresh and effective during transit. In Singapore, where the high ambient temperatures can pose a significant challenge, having a reliable truck refrigeration unit is crucial for maintaining the quality and integrity of products.

Types of Truck Refrigeration Units

When selecting a freezer truck, it’s important to understand the different types of refrigeration systems available. Each type offers unique advantages and is suited to different operational needs.

Direct Drive Systems

Direct drive systems, also known as vehicle-powered systems, use the power generated by the truck’s engine to run the refrigeration unit. This type of system is commonly used in Light and Medium-Duty freezer trucks.

Advantages:

• Efficiency: Direct-Drive systems are well known for their high efficiency, as they directly utilize the truck’s engine power by introducing the idle pulley and belt connected to the compressor, whereby transmitting the power to the refrigeration system.
• Reliability: These systems are versatile and less likely to experience issues related to external power sources because they rely on the truck engine solely.

Considerations:

• Dependence on Engine Power: The refrigeration unit’s performance is directly tied to the truck’s engine, which means that if the engine is off, so is the refrigeration unit.
• Maintenance: Regular maintenance of the truck’s engine becomes crucial to ensure the refrigeration system operates smoothly and

Self-Powered Systems

Self-powered systems operate with an independent engine that powers the refrigeration unit. These systems are highly flexible and can be plugged into an external power source if needed.

Advantages:

• Flexibility: Self-powered systems allow for operation even when the truck’s engine is off, offering greater flexibility in terms of parking and operating duration.
• Low Maintenance: These systems often have longer servicing and maintenance intervals, such as 2,000 or 3,000 running hours before the next servicing need to be done, which can save maintenance and servicing costs in the short and long-term.
• A Constant High and Low rpm which means a faster cooling time as compared to the Direct-Drive System which depends on the truck’ engine rpm. (Acceleration high or low and idling at traffic’s lights will affect the cooling performance accordingly)

Considerations:

• Initial Cost: Self-powered systems can be more expensive upfront compared to direct drive systems.
• Complexity: The additional engine and components can add to the complexity of the system, potentially requiring more specialized maintenance.

Key Factors to Consider When Choosing a Truck Refrigeration Unit

Selecting the right truck refrigeration unit involves evaluating several critical factors to ensure that the system meets your operational needs effectively.

Capacity and Size

The capacity of the truck refrigeration unit should align with the type and volume of goods you plan to transport. Consider the following:

• Volume of Goods and Space: Assess the volume and type of container size you need to transport to determine the required cubic volume capacity of the interior space needed for the refrigeration unit to put down to its set temperature.
• Temperature Requirements: Different products may require different temperature ranges, so buyer need to ensure the unit can achieve and maintain its required cold chain transport temperature with additional 20% more efficiency to compensate its performance over the years and power efficiency necessary for its usage

Temperature Performance

Consistent temperature control is vital for preserving the quality of perishable goods. Key aspects include:

• Temperature Range: Ensure that the refrigeration unit can maintain the required temperature range throughout the journey.
• Temperature Monitoring: Advanced temperature monitoring systems can provide real-time data and alerts if there are any fluctuations.

Maintenance and Durability

A reliable truck refrigeration unit should be durable and easy to maintain. Consider:

• Durability: Choose a unit built with high-quality materials and components to withstand regular use in harsh weather and road
• Ease of Maintenance: Look for systems that offer easy access for maintenance, have readily available parts, its authorized workshop and a qualified support maintenance team.

Energy Efficiency

Energy efficiency impacts both operating costs and environmental footprint. Consider:

• Fuel Efficiency: Direct drive systems rely on the truck’s engine, so fuel efficiency can affect overall costs. Self-powered systems may offer better energy management.
• Environmental Impact: Energy-efficient systems help reduce the environmental impact by consuming less fuel and reducing emissions.

Advanced Features and Technology

Modern truck refrigeration units come equipped with several advanced features designed to enhance performance and reliability, such as real-time temperature monitoring system, data management, remote control of the refrigeration system, 3rd party API control capability, precision temperature control for pharmaceuticals and medical products and fully electric system to enhance operational performance and reduce energy cost.

Temperature Monitoring Systems

Temperature monitoring systems are crucial for ensuring that the goods remain within the required temperature range. Features to look for include:

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• Real-Time Monitoring: Systems that provide real-time temperature data allow for immediate action if any issues arise.
• Remote Access: Some systems offer remote access to monitor temperature conditions from a distance, which can be particularly useful for fleet management. This allows instant detection of abnormality in temperature performance whereby prevent rejection and saving especially expensive cargo and goods.

Airflow Management

Effective airflow management helps maintain an even temperature distribution throughout the cargo area. Consider features such as:

• Air Circulation: Systems that ensure proper air circulation, prevent hot spots and ensure uniform cooling.
• Airflow volume: System with weak airflow volume cannot cool a longer refrigeration truck because the cold air cannot reach the back end of the insulated container.
• Ventilation: Adequate ventilation helps maintain a consistent temperature and reduces the risk of condensation, spoilage of perishable goods and rejections. The use of corrugated flooring, introduction of pallets, and maintaining the maximum load height inside the insulated container could help to address this issue.

Common Challenges and Solutions

Even with advanced technology, truck refrigeration units can face certain challenges. Here are some common issues and potential solutions.

Temperature Fluctuations

Temperature fluctuations can jeopardize the quality of the transported goods. Solutions include:

• Regular Maintenance: Routine maintenance checks can identify and address issues before they cause significant problems.
• Advanced Monitoring: Implementing advanced temperature monitoring systems can help detect and rectify fluctuations quickly.

Maintenance Issues

Maintenance is essential for ensuring the longevity and reliability of the refrigeration unit. Key practices include:

• Scheduled Servicing: Adhere to a regular servicing schedule to keep the system in optimal condition.
• Authorized and Professional Repairs: Use certified workshop and authorized technicians for repairs to ensure that the work is done correctly and with genuine parts.

Regulatory Compliance

In Singapore, compliance with local regulations is important for operating freezer trucks. Key regulations to consider include:

• Health and Safety Standards: Ensure that your truck refrigeration unit meets all health and safety requirements related to the transport of perishable goods.
• Environmental Regulations: Adhere to regulations concerning emissions and environmental impact to avoid penalties and contribute to sustainability efforts.

Conclusion

Choosing the right truck refrigeration unit is a critical decision for any business involved in transporting temperature-sensitive goods. By understanding the types of refrigeration systems, evaluating key factors, and considering advanced features, you can make an informed choice that meets your operational needs.

The refrigerated van plays an important role in the urban distribution process, but the engine space of the refrigerated van is compact and cannot be installed with a scroll compressor. To solve this problem, our company has developed and designed an rooftop mounted electric van refrigeration units.

What is DC powered van refrigeration units?

When engine is off, battery drive compressor to work and then the unit to work. At the same time, electric compressor already is designed in the inside of condenser, you don’t need to install mechanical compressor on the engine.

How to choose right electric van refrigeration units?

At now Huabon Thermo have chiller unit TR200D and frozen units TRF200D/TRF280D.

TR200D is a R134a system, W cooling capacity at 0℃, DC12V/24V, temperature range from -5℃ to +25℃, electric scroll compressor in the condenser, application on box size of 5~7m³.

TRF200D is a R404a system, W cooling capacity at 0℃, DC12V, temperature range from -18℃ to +25℃, electric rotor compressor, one condenser fan and one evaporator fan, application on box size of 5~8m³.

TRF280D also is R404a system, W cooling capacity at 0℃, DC12V, temperature range from -18℃ to +25℃, electric rotor compressor, one condenser fan and two evaporator fans, application on box size of 8~12m³.

When you choose electric van refrigeration units, you need to consider your van box size and temperature requirement, of course, you also need to consider the power of battery. Our power consumption of electric van refrigeration units is about 70A, if you want unit to work for long time when engine is off, you need to prepare a large battery group for unit.

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