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Tag Archives: R410A

daikin-dhont-r32-refrigerant-installation-design-aspects-9-638

What is R-32 The Next Generation Refrigerant!

 

What’s R-32?
R-32 is a next generation refrigerant that efficiently carries heat and has lower environmental impact.

 

 

Refrigerant is a medium for conveying heat.

Air conditioners transfer heat while circulating refrigerant between the indoor and outdoor units.

Although there are various types of refrigerants, R-32 is a new refrigerant currently receiving the most interest.
Because R-32 efficiently conveys heat, it can reduce electricity consumption up to approximately 10% compared to that of air conditioners using refrigerant R-22. Furthermore, compared to the refrigerants widely used today such as R-22 and R-410A, R-32 has a global warming potential (GWP) that is one-third lower and is remarkable for its low environmental impact.

  • *Source:
    Values for 100 year global warming potential (GWP) from IPCC Fourth Assessment Report. Comparative 100 year GWP: HFC410A, 2,090; HFC32, 675.

As the only manufacturer that develops and manufactures both air conditioners and refrigerants, Daikin launched the world’s first residential-use air conditioner
using R-32.

Refrigerant Trends

Various refrigerants have been used in air conditioners until now. Regulations have increasingly become stricter from greater consideration for the global environment because of the Montreal Protocol in 1987 and the Kyoto Protocol in 1997, resulting in a shift to refrigerants with even lower environmental impact.

Although the mainstream refrigerant R-410A has an ozone depletion potential (ODP) of 0, its global warming potential (GWP) still remains an issue.

While R-32 also has an ozone depletion potential of 0, the refrigerant has only approximately 1/3 of the GWP of R-410A. Consequently, investigation of this promising next generation refrigerant has increased.

However, because R-32 had been an extremely difficult refrigerant to handle, its use was not practical until now. Daikin became the world’s first company to succeed in applying R-32 to air conditioners by leveraging its expertise as the only manufacturer that develops and manufactures both air conditioners and refrigerants.

Currently, R-410A is the refrigerant most commonly used in developed countries. However, if all R-410A were converted to R-32, the impact to global warming from HFCs in 2030 would be reduced by the CO2equivalent of approximately 800 million tons (19%) compared to the continued use of R-410A.*2

  • *1)
    Values for 100 year global warming potential (GWP) from IPCC Fourth Assessment Report. Comparative 100 year GWP: HFC410A, 2,090; HFC32, 675.
  • *2)
    Daikin calculations based on thesis, Velders et al, PNAS (2009), World Meteorological Organization (WMO) library

Cooperation with governments and international organizations has expanded technical assistance for emerging countries to each region and aims for widespread use of the refrigerant R-32 throughout the world.

Aiming for widespread use throughout the world, Daikin not only manufactures and sells R-32, but it also provides technical assistance in emerging countries in cooperation with governments and international organizations.
In India, verification tests were conducted for inverter type R-32 air conditioners. In executing training for the proper handling of R-32, the technical level also improved. Consequently, Daikin has received requests from various governments, including the Thai and Malaysian governments, and the company is beginning to target local manufacturers for technical assistance for conversion to R-32.
Such efforts as those mentioned above have earned Daikin high acclaim and a variety of awards.

r410-vs-r22

教你区别R22和R410A空调制冷剂

现在空调中常用R22和R410A两种不同的制冷剂。但是很多人不是太了解这两种制冷剂的区别,不知道用哪种制冷剂好。下面小海带大家一起来了解一下这两种制冷剂吧。

制冷剂是空调制冷循环的工作介质,制冷剂通过在蒸发器中汽化时吸热,在冷凝器中凝结时放热循环往复来达到制冷的目的。氟利昂是目前广泛使用的制冷剂,它种类繁多,为避免书写其分子式的麻烦,也为了方便记忆,人们制定了一套简化代号来表示各种氟利昂冷剂,如R12、R22、R410A等。现在空调中常用R22和R410A两种不同的制冷剂。但是很多人不是太了解这两种制冷剂的区别,不知道用哪种制冷剂好。下面小海带大家一起来了解一下这两种制冷剂吧。

R22和R410A是什么

R22的化学名为二氟一氯甲烷,是氟利昂家族的一员,属于氢氯氟烃类。我们目前所使用的制冷剂大多数是R22。由于这种制冷剂对臭氧层具有很大的危害,根据蒙特利尔协议书规定,将于2020年前全面淘汰。

R410A则是一种新型的制冷剂。R410A新冷媒由两种准共沸的混合物而成,主要有氢,氟和碳元素组成,具有稳定,无毒,性能优越等特点。同时由于不含氯元素,故不会与臭氧发生反应,既不会破坏臭氧层。另外,采用新冷媒的空调在性能方面也会又一定的提高。R410A是目前为止国际公认的用来替代R22最合适的冷媒,并在欧美,日本等国家得到普及。

为什么要用R410A取代R22

1、R410A属于低毒性,显示不具燃烧传播性。

2、R410A的臭氧层破坏系数为0,R22的臭氧层破坏系数为0.05。

3、使用R410A 时,系统的总传热特性比R22大,所以可改善系统效率,并且减少热交换器的热传面积。

R410A和R22有以下几个不同的特性:

1、R410A是由HFC-32(R32)和HFC-125以重量比各50﹪混合而成的冷媒,为近共沸混合冷媒。而R22 则为单一物质冷媒。

2、R410A的运转压力比R22 高约50~70%。

3、R410A比R22的蒸气密度大。对相同能力的系统,所需的冷媒质量流率相同。因气配管均为相同的管径,所以R410A蒸气流速相较于R22大约缓慢30%。

4、因R32 分子具有高极性,故R410A比R22更具有溶解性。残渣漂浮于R410A时,可以顺利在系统内循环。

通过以上介绍,相信大家都知道使用R410A要比使用R22为制冷剂的空调优越很多,所以建议广大消费者购买使用R410A为制冷剂的空调,不仅可以享受更舒适的空调环境,还不破坏环境,造福子孙后代。目前,国际知名品牌的空调大都使用R410A为制冷剂,如DAIKIN P&Q系列、CARRIER和YORK中央空调、PANASONIC、三星中央空调都使用R410A新冷媒为制冷剂,在未来,相信些使用R410A制冷剂的空调市场前景会越来越广阔