Malaysia's Cold Chain Industry Guide

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What Type of Refrigeration Equipment System Should I Choose for My Business?

Cold Chain Problem Solving & Diagnosis October 12, 2022

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Malaysia is reported to be focusing on enhancing its public transportation and building more shopping malls in the Malaysian HVACR industry. Companies like BITZER, one of the world's largest independent manufacturers of refrigeration compressors, announced an expansion of their presence in Malaysia to support this movement.

For Malaysia to transition to greener refrigerants and ensure minimal environmental impacts, alternative refrigerant systems such as Freon, Ammonia and Carbon Dioxide (CO2) are highly encouraged during application.

In this article, we will be introducing them for your better understanding and decision-making when choosing the best refrigeration equipment system for your business. 

Conventional Freon System

The conventional Freon system is a non-combustible gas used as a refrigerant in air conditioning systems. This freon repeatedly evaporates to produce cool air that circulates throughout your air conditioning system. 

It is not just used in air conditioning units but also in upright and chest freezers. In addition, Freon is applicable in a wide range of commercial and industrial appliances, including food transportation and cold rooms. Food, medicine and flower storage typically uses a conventional freon system. Since it is harmful to the ozone layer, Freon has had several adaptations since.

For example, Freon R600a(C4H10) 2-methylpropane (isobutane), a CH refrigerant A3 substance, can be used as a refrigerator refrigerant when the charge is small and has energy savings, low noise, and no environmental impact.

Ammonia System

Ammonia refrigeration systems work similarly to the conventional Freon systems. Because ammonia is a toxic substance, you will rarely find one of these systems in a residential home. Though it is not suitable for small applications, Ammonia refrigeration systems in industrial settings are a cost-effective and energy-efficient option for businesses. These refrigeration systems can rapidly cool substances, which is a significant advantage in industrial and commercial applications in the long run. An Ammonia tracker is typically installed to monitor the gas level and detect if it is leaking. It is not harmful to the ozone layer as well. 

Since the early 1900s, ammonia refrigeration has been the backbone of the cold storage and food processing industries. Companies like MYCOM and NRS pride themselves on using ammonia as their primary refrigeration system.

Carbon Dioxide (CO2) System

Carbon dioxide is applicable in industrial refrigeration as a low-stage refrigerant in cascade installations or as a secondary coolant. While it is still below the radar as a primary refrigerator, companies in Malaysia, such as Panasonic, is starting to implement it in supermarkets and convenience stores to make a greener impact.

In a nutshell, CO2 as a refrigerant has several benefits, such as high thermal conductivity and low kinematic and dynamic viscosity–making it a trend for many businesses' primary option when choosing a refrigeration system. Today, major manufacturers such as Danfoss, Bitzer, Dorin, and Emerson are implementing CO2 in their operations.

In summary

Selecting the best refrigeration system for your business comes down to your operating costs and the availability of these refrigerants. Each of these systems has its pros and cons alongside its impact on the global environment. Thus, it is more important now than ever to consider the most appropriate refrigeration system that is suitable for your business.


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