This work presents an analysis of the influence of the main constructive parameters on the efficiency of a scroll compressor for air conditioner systems. A simulation program was developed and used as a designing tool. The program equations which computes the thermodynamic properties of gas, mass and energy losses and efficiency, are examined in detail. The program was validated comparing its r...

W. H. You, D. Y. Kwon, S. K. Ko Refrigerator Design, Home Appliances Business Samsung Electronics, Suwon, Korea A suction valve is a very important element in reciprocating compressor. And because of the shape of the reed valve its reliability is taken up a subject for discussion and sometimes it is main source of bad product. Because the reliability of the suction valve is directly related to ...

Reciprocating compressors are widely used in industry for various purposes and faults occurring in them can degrade performance, consume additional energy, and even cause severe damage to the machine. This paper will develop an automated approach to condition classification of a reciprocating compressor based on vibration measurements. Both the time domain and frequency domain techniques have b...

The use of pulse width modulation (PWM) to drive permanent magnet synchronous motors (PMSM) inevitably creates current harmonics. generated harmonics create harmonic components the electromagnetic force, causing noise and vibration in PMSM affecting applied system. In this paper, effect PMSM’s force on a reciprocating compressor is analyzed. First, two PMSMs with different forces were designed....

The VIPTM compressor is a new, high-quality product line from the Dresser-Rand company. It incorporates a valve-in-piston cylinder. This is a unique design which results in higher efficiency and fewer parts. The VIP cylinder design is drastically different from the conventional reciprocating compressor cylinders in that the valve are an integral part of the piston assembly. Finite element analy...

Traditional vibration monitoring techniques have found it difficult to determine a set of effective diagnostic features due to the high complexity of the vibration signals originating from the many different impact sources and wide ranges of practical operating conditions. In this paper Principal Component Analysis (PCA) is used for selecting vibration feature and detecting different faults in ...