Saturday, December 28, 2019

Types and Characteristics of Compressors - 622 Words

The compressor is the main key components of the air-conditioning unit, hence considered the heart of a refrigerating system. There are four main types of rotary compressors: rotary vane compressors, scroll compressors, wobble plate compressors and swash plate compressors that are used in automotive conditioning units. Each type of these compressors carries with its inherent operational characteristics. For example, in comparison with other rotary types, scroll compressors exhibit high performance, low noise and small vibration, but are difficultly to manufacture and have complex structure (Akazawa et al., 1996; Yi and Qian, 2008) . For further improvement in the air conditioning and refrigeration system, many researchers focus on the Improvement of the compressor unit; In particular, developing a new compressor technology. A new compressor will indeed be a great effort to further improve the general performance of the air conditioning system. Most of the vehicle air conditioning systems use the type of reciprocating compressor. One could say that the popularity of reciprocating mechanism is the result of their well-known compression concept which has been applied also in the internal combustion engine. The rotary compressor has proven durability and high efficiency for automotive applications while offering smaller form factor at the same time (Chang, 1983). Besides their good reliability and efficiency, rotary compressors developments have resulted in simpler structure andShow MoreRelatedSupercharged Bike Engine and Its Simulation1408 Words   |  6 Pagessupercharging is to increase the increase the amount of air intake in an engine by making use of a compressor. This compressor is also called a supercharger. A supercharger works by increasing the pressure or density of air supplied to an engine, which allows for burning of more fuel per cycle by the engine because of the increased oxygen with the increased amount of a ir being supplied to the engine. The compressor takes in the air from the atmosphere at atmospheric pressure, and if the carburetor is connectedRead MoreCharacteristics Of Early Warning Of Equipment Chain Gas Pipeline Essay921 Words   |  4 Pages3.1. Characteristics of early warning of equipment chain in gas pipeline 3.1.1 Characteristics of early warning problem (1) Time sequence Early-warning is the process that warning system addresses alarm information to managers in time before emergency [15, 16]. It is indistinguishable and unexplainable to deal with early warning signals and complex questions for most methods. Not only does accidents evolvement rely on current condition, but also on regular historical changes in conditions, becauseRead MoreStages Of Axial Flow Compressor1267 Words   |  6 Pagesthrough a stage in axial flow compressor A stage is a pair of rotating airfoil and stationary airfoil in an axial flow compressor. As the air passes through the rotating airfoil (also called a blade or rotor), its velocity increases. High velocity air then passes through the stationary airfoil (also known as the stator or just vanes) where it is retarded converting the kinetic energy due to velocity increase into static pressure. f) Reasons for twisting axial flow compressor rotor blades The rotor bladesRead MorePerformance Evaluation of Rotary Vane Compressor Using Oil Separator in Car AC System1121 Words   |  4 Pages9 CHAPTER 1: â€Å"PERFORMANCE EVALUATION OF ROTARY VANE COMPRESSOR USING OIL SEPARATOR IN CAR A/C SYSTEM† 1. 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