International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 05 | May 2025
p-ISSN: 2395-0072
www.irjet.net
DESICCANT COMPATIBILITY TEST WITH PAG, PVE & POE COMPRESSOR OIL Mr. Sanjiv Pawar1, Dr. Nitin Korde2 1Student, Department of Mechanical Engineering, G H Raisoni College of Engineering and Management pune
Maharashtra, India 2Professor and Dean Academics, Department of Mechanical Engineering, G H Raisoni College of Engineering and
Management pune Maharashtra, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - The aim of this study is to evaluate the
moisture effectively is critical to ensuring optimal performance and longevity of the equipment. Moisture can lead to several issues, such as corrosion, ice formation, and a decrease in system efficiency. If moisture is not adequately controlled, it can damage vital components, leading to expensive repairs and reduced operational reliability [15]. To address this, desiccants like activated alumina and molecular sieves are used to absorb excess moisture. These materials help maintain the system's performance by preventing water-related damage. However, desiccants can interact with lubricating oils used in refrigeration systems, including Polyalkylene Glycol (PAG), Polyvinyl Ether (PVE), and Polyol Ester (POE) [2]. Understanding how desiccants interact with these lubricants is essential because it can influence the efficiency and stability of the entire refrigeration system [7].
chemical compatibility and stability of two commonly used desiccants, activated alumina and molecular sieves, with three types of lubricants: Polyalkylene Glycol (PAG), Polyvinyl Ether (PVE), and Polyol Ester (POE) oils. Following the ASHRAE 97 standard, the study tests the chemical stability of the desiccants in each oil type to ensure optimal performance in refrigeration and air conditioning systems. The research focuses on two key objectives: assessing desiccant degradation through a crushing test and measuring pH values to identify any chemical reactions after exposure. The experimental procedure involves placing the desiccants in sealed glass tubes with PAG, PVE, and POE oils, then subjecting them to elevated temperatures over an extended period, as outlined by ASHRAE 97. After the exposure period, the desiccants undergo a crushing test to determine any loss in mechanical strength or structural degradation. In addition, the pH of the oils is measured to identify any changes in acidity or alkalinity, which would indicate chemical reactions between the desiccants and the oils.
1.1 Components of Filter Drier Core: The core ensures proper flow and prevents clogging or damage to other components. It holds the filter and desiccant materials securely in place.
Initial findings suggest varying levels of compatibility between the desiccants and the oils, with both activated alumina and molecular sieves showing some degree of mechanical degradation in specific oil environments.
Inner Bore: It directs the flow of refrigerant in an efficient manner to maximize the exposure to the desiccant and filter materials, ensuring effective moisture removal and filtration.
In conclusion, the study highlights the importance of selecting desiccants that are chemically stable and compatible with the specific oils used in refrigeration systems. These findings provide valuable insights for optimizing system longevity and performance, ensuring that the choice of desiccant minimizes chemical reactions and system failures.
Screen: The screen prevents solid contaminants from reaching sensitive parts of the system like the compressor, valves, or expansion devices. It prolongs the life of the desiccant and keeps the system running smoothly. Spring: The spring ensures that the components remain securely positioned, preventing movement that could cause leaks or poor filtration performance.
Key Words: Desiccant, Filter Drier, ASHRAE, PAG Oil, PVE Oil, POE Oil
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Activated alumina plays A critical role in removing water from the system & molecular sieves act as both a filter and drying agent in the refrigeration system [10].
1. INTRODUCTION Refrigeration System Moisture Management In refrigeration and air conditioning systems, managing
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