【 Weak current College 】 how air conditioning refrigerant alternatives?

Now the positive peak season for air conditioning sales, as environmental awareness increases, like fluoride-free air conditioning, environment-friendly products to become the first choice for consumers. However, due to the industry on the "all-free air conditioning has fluoride" voice magpie, let the environmental awareness of consumers when buying air conditioning at a loss. China household electrical appliances Association Deputy Secretary Wang Lei, long pointed out that, in fact, the air conditioning is fluoride free fluoride controversy, mainly in the refrigerant there is different. So, how does the consumer?

It is understood, since the beginning of this year, air conditioner manufacturers have increased-free air conditioning of the promotion, on the one hand, the environmental responsibility, but more importantly, it is the United States from this year onwards prohibits the use of R22 refrigerant air conditioning sales tradition.

According to experts, the air conditioning business force push fluoride-free air conditioning use R410a refrigerant is the generic term of the industry have fluoride refrigerant air conditioning use is R22. In fact, these two elements containing fluorinated refrigerants, the only non-HFC R410a, containing HCFC R22, and HCFC ozone is destroyed.

For R410a refrigerant for air conditioners, industry accustomed is referred to as "air conditioning" fluoride-free, this is the common name, like we always used to call "freon" actually is not a chemical element, which is the DuPont product name. Previously, DuPont also for R410a took a "choix" product name to avoid confusion.

R410a although non-chlorinated hydrocarbons, not on the Earth's ozone layer destruction, still contains fluoride boiled dumplings, still causes the greenhouse gas effect. Industry noted that compared to R22, R410a-induced greenhouse gas effect, therefore, it is not the ultimate environmental protection air conditioning refrigerant, justupdate the study out of the refrigerant there is no temporary alternatives before.

Air conditioning with fluoride-free behind the debate, is actually a game between large enterprises. This reporter has learned that the current global R410a refrigerant franchise is DuPont, Honeywell, Daikin, u.s.-Japan business control, the popularity of R410a market more quickly, these enterprises have acquired patent fees. To this end, the EU has been trying to find more environmentally friendly refrigerant products, while the Chinese home appliances Association has also been organizing my air conditioning firms seeking new refrigerant alternatives. "At present, an air-conditioner use R410a refrigerant R22 than using expensive 4 times. " One of the air conditioning business leaders forget this accounts, if the current Chinese air conditioning refrigerant R22 are from the upgraded to R410a, the only more each year to produce patent fees and costs will be several billion dollars. Because the domestic enterprises has not yet developed a more suitable alternative refrigerant R410a, only of the new compromise.

What is gratifying is that the current domestic on new refrigerants, the focus of research is to address the direction of R410a greenhouse potential problem of high value. At present, China's refrigerator market refrigerant substitution work more quickly. Domestic market sales of non-fluorinated refrigerator are used R600a refrigerant R22. Natural refrigerants R600a are, on the ozone layer and the greenhouse gas effect and does not affect. Shandong Dongyue and Tsinghua University, has developed a new type of environmentally friendly refrigerant DY1-5. Zhejiang University also launched a new ternary mixed refrigerant R32/R125/R161 related alternative refrigerants R407C.

However, the current has the industry concerned R290. At present this refrigerant used in air conditioning laboratory testing has been completed. R290 's low cost, you can choose from the existing gas in direct access, this is a sufficient for numerous air conditioning solutions for enterprise and tachycardia. -High air conditioning technology Deputy Director-General forest 崐 told reporters that many years ago, China household electrical appliances Association organized the mainstream R290 refrigerant air conditioning business of alternative tests, including Chi-high, beautiful, gree, Enterprise, has a related product development and experimentation.