Development of Energy Efficiency Design Map based on acoustic resonance frequency of suction muffler in compressor

The volumetric efficiency of the Internal Combustion (IC) engine and compressor can be increased by properly adjusting the acoustic resonance frequency of the suction muffler or the suction valve timing without any additional equipment or power source. This effect is known as acoustic supercharging. However, the energy efficiency has become more important than the volumetric efficiency because of the energy shortage issue and factors influencing consumers’ purchasing decisions. Therefore, methods for increasing the energy efficiency using the acoustic effect in the suction part of IC engine and compressor should be considered. In this study, a systematic method for improving the energy efficiency using the acoustic effect in the suction part of the compressor used in refrigerators and air conditioners was developed for the first time. This effect is named as the Acoustically Supercharged Energy Efficiency (ASEE). For the ASEE, first, a hybrid coupling method was suggested for the acoustical analysis in the suction part of the compressor. Next, an Energy Efficiency Design Map (EEDM) was proposed. This can serve as a design guide for suction mufflers in terms of the energy efficiency. Finally, sensitivity analyses of the Energy Efficiency Ratio (EER) and total massflow rate with respect to the acoustic pressure were conducted to identify the relationship between the acoustic pressure and the suction valve motion. This provides the physical background for the EEDM.

[1]  Mats Åbom,et al.  Influence of errors on the two‐microphone method for measuring acoustic properties in ducts , 1986 .

[2]  M. Munjal.  Acoustics of Ducts and Mufflers With Application to Exhaust and Ventilation System Design , 1987 .

[3]  Annarita Viggiano,et al.  A comprehensive investigation on the emissions of ethanol HCCI engines , 2012 .

[4]  Philip M. Morse,et al.  Acoustic Vibrations and Internal Combustion Engine Performance I. Standing Waves in the Intake Pipe System , 1938 .

[5]  Eiji Tomita,et al.  An experimental investigation on engine performance and emissions of a supercharged H2-diesel dual-fuel engine , 2010 .

[6]  Werner Soedel,et al.  Sound and Vibrations of Positive Displacement Compressors , 2006 .

[7]  W. Soedel,et al.  Performance Study of a Variable Speed Compressor with Special Attention to Supercharging Effect , 1994 .

[8]  Chi-Tsong Chen,et al.  Linear System Theory and Design , 1995 .

[10]  Ji Hwan Jeong,et al.  An experimental and numerical study on an inherent capacity modulated linear compressor for home refrigerators , 2011 .

[11]  Joël Gilbert,et al.  HARMONIC BALANCE METHOD USED FOR CALCULATING THE STEADY STATE OSCILLATIONS OF A SIMPLE ONE-CYLINDER COLD ENGINE , 2001 .

[12]  K. Roussopoulos.  Supercharging by Pressure Wave Generation , 1992 .

[13]  Pascal Chesse,et al.  Frequency based approach for simulating pressure waves at the inlet of internal combustion engines using a parameterized model , 2013 .

[14]  Youn Cheol Park.  Transient analysis of a variable speed rotary compressor , 2010 .

[15]  Gicheol Jeong,et al.  The effects of energy efficiency and environmental labels on appliance choice in South Korea , 2015 .

[16]  Mark Richardson,et al.  PARAMETER ESTIMATION FROM FREQUENCY RESPONSE MEASUREMENTS USING RATIONAL FRACTION POLYNOMIALS (TWENTY YEARS OF PROGRESS) , 1982 .

[17]  Alessandro Beghi,et al.  Advanced control systems for single compressor chiller units , 2009 .

[18]  N. A. Rubayi.  Acoustic vibrations in intake manifold system and the supercharging of engines , 1972 .

[19]  Alain Lefebvre,et al.  Use of a mechanical analogy to couple the time-domain of a one-cylinder cold-engine model with the input impedance of its intake system , 2011 .

[20]  Yang Yu,et al.  China’s Promoting Energy-Efficient Products for the Benefit of the People Program in 2012: Results and analysis of the consumer impact study , 2014 .

[21]  D. A. Blaser,et al.  Transfer function method of measuring in-duct acoustic properties. I - Theory. II - Experiment , 1980 .

[22]  Jiang Yiqiang,et al.  A novel defrosting method using heat energy dissipated by the compressor of an air source heat pump , 2014 .

[23]  Roger Sierens,et al.  Increasing the power output of hydrogen internal combustion engines by means of supercharging and exhaust gas recirculation , 2009 .

[24]  Gianluca D'Errico,et al.  Multi-objective optimization of internal combustion engine by means of 1D fluid-dynamic models , 2011 .

[25]  D. Leducq,et al.  Energy consumption optimization of a continuous ice cream process , 2013 .

[26]  M. F. Harrison,et al.  The acoustics of racing engine intake systems , 2004 .

[27]  Hans Bodén,et al.  Comparison of different methods to couple nonlinear source descriptions in the time domain to linear system descriptions in the frequency domain- : Application to a simple valveless one-cylinder cold engine , 2006 .

[28]  Hyeong Seok Kim,et al.  CAE/CFD Application for Linear Compressor , 2006 .

[29]  Ji Hwan Jeong,et al.  Performance characteristics of a capacity-modulated linear compressor for home refrigerators , 2013 .