Tribological interactions of advanced polymeric coatings with polyalkylene glycol lubricant and r1234yf refrigerant
نویسندگان
چکیده
منابع مشابه
Solubility, Viscosity and Density of Refrigerant/Lubricant Mixtures
Solubility (vapor pressure) , viscosity and density have been experimentally determined for thirty-five potential refrigeration working fluids. Properties for low refrigerant concentration mixtures (0, 10, 20 and 30 weight percent refrigerant) were determined over the temperature range 0 to IOO•C (32 to 212"F) or to the critical temperature of the refrigerant, and pressure range 0 to 3,500 kPa ...
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Polymer nanocomposites operate in applications where fluid and grease lubricants fail, and have superior tribological performance to traditional polymer composites. Nanoparticle fillers have been a part of notable reductions in the wear rate of the polymer matrix at very low loadings. Despite instances of remarkable wear reductions at unprecedented loadings (3 000 times at 0.5% loading in one c...
متن کاملSustainability of Automobile Air- Conditioning System Using Refrigerant R1234yf Instead of R134a
Air conditioning refrigerant R134a has value of global warming potential (GWP) 1300, which is much higher than MAC Directive (GWP below 150) passed in July 2006. This prompted a search for alternative refrigerant with GWP value less than 150. R1234yf is a new refrigerant which has lower GWP value of 4. Effect of blower speed has been compared and flammability issue of R1234yf has been addre...
متن کاملTribological Investigation of Mahua Oil Based Lubricant for Maintenance Applications
Limited crude reserves, consistently rising oil prices, unsafe disposal of the harmful lubricants and its guaranteed adverse aftereffects has increased concern for replenishing the environment. Development of environmental friendly lubricants and its appropriate usage is an option of prime importance which can overcome such problems. This paper investigates the prospects of Mahua oil based lubr...
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ژورنال
عنوان ژورنال: Tribology International
سال: 2016
ISSN: 0301-679X
DOI: 10.1016/j.triboint.2016.01.026