Freonul eco r1234yf la Opel Astra j sedan, motor B16xer.

Ai AC manual sau automat?

Daca ai 5 grade in tubulatura ai un super AC. Daca vrei bucati de gheata ia-ti frigiuder!

500 lei, destul de scump..,,

Poți sa pui un link sa citim mai multe despre el? Cum ca ar fi periculos...

Emil, fii atent cã la Brãila... cuțite, alea, alea...😂😂😂

Acum am vazut link-ul ce l-ai pus ...nu stiu ce sa zic...ce putem face?

Nu stiu daca la un impact frontal te mai deranjeaza un incendiu in plus la motor Glumesc, doamne fereste!

205...dar te sfatuiesc sa mergi sa o vezi la dealer cand va ajunge eventual sa faci si poze in ea.... te vei simti muuuult mai bine

Daca credeti caci acest subiect nu merita discutat, eu cred ca va trebuii sa inchid topicul.
Am obs. caci discutiile au deviat...
Va multumesc pt. timpul pierdut!

http://www.automarket.ro/st...clarat-66897.html
Care "toti producatorii?"
Mai documenteaza-te!
Firme mari au retras acest freon si tu sustii caci toti producatorii il folosesc.
Care producatori?
Doresc exemple.

Salut, conform wikipedia Honda, Subaru si Chrystler au introdus acelasi gaz pe modelele din 2017


https://en.wikipedia.org/wik...etrafluoropropene

Although the product is classified slightly flammable by ASHRAE, several years of testing by SAE proved that the product could not be ignited under conditions normally experienced by a vehicle. In addition several independent authorities evaluated the safety of the product in vehicles and some of them concluded that it was as safe to use as R-134a, the product in use in cars today. In the atmosphere, HFO-1234yf degrades to trifluoroacetic acid,[8] which is a mildly phytotoxic[9] strong organic acid[10] with no known biodegradation mechanism in water. In case of fire it releases highly corrosive and toxic hydrogen fluoride and the highly toxic gas carbonyl fluoride.[11]

In July 2008, Honeywell/Du-Pont published a report claiming "HFO-1234yf is very difficult to ignite with electric spark" detailing the tests they did passing the gas over a hot plate heated to various temperatures in the range of 500°C - 900°C. Ignition was only seen when HFO-1234yf was mixed with PAG oil and passed over a plate that was > 900°C.[12]

In December 2012, Mercedes-Benz showed that the substance ignited when researchers sprayed it and A/C compressor oil onto a car's hot engine. A senior Daimler engineer who ran the tests, stated "We were frozen in shock, I am not going to deny it. We needed a day to comprehend what we had just seen." Combustion occurred in more than two thirds of simulated head-on collisions. The engineers also noticed etching on the windshield caused by the corrosive gases. BMW, and VW-Audi agreed with Mercedes and left the SAE R-1234yf CRP Team, stating that the performed tests are not sufficient to fully judge the safety of their vehicles. The German automakers have been leaning towards carbon dioxide refrigerant, which may be safer for both passengers and the environment.[13][14][15]

Following Mercedes claims that the new refrigerant could be ignited, Germany's Kraftfahrt-Bundesamt (Federal Motor Transport Authority) conducted its own tests. The Authority concluded that while the substance was potentially more hazardous than previously used R-134a, it did not comprise a serious danger. However the German automakers disagree with their findings, and test procedures.[16] Following other independent and in house testing, General Motors still plans to transition all new models to the new refrigerant by 2018.[17] Chrysler announced that they would continue the transition to R1234yf as well. Japanese automakers are also making the transition to R1234yf, Honda and Subaru have begun to introduce the new refrigerant already with the 2017 models.[18]

Mixing HFO-1234yf with 10-11% R-134A is in development to produce a hybrid gas under review by ASHRAE for classification as A2L which is described as "virtually non-flammable". These gasses are under review with the names of R451A and R451B. These mixes have GWP of ~147.[19]


Ultima modificare făcută de chelebet la Dum 18 Jun, 2017 2:34 pm