The suction muffler of a reciprocating compressor is used for reducing a noise produced by pressure pulsations. From the viewpoint of COP, mainly function of suction muffler is reducing a pressure drop and heat transfer in a suction system According to the shape, the suction muffler is classified into expansion-chamber type, Helmholtz-resonator type, pipe-resonator type, and so on. For the second time, we must consider detailed parameters. (total volume, inlet and outlet tube size, flow path line length, and so on) In this study, we carried out experiment and calculation about these detailed parameters using DOE method. We approached to total process of suction muffler design. (from the viewpoint of COP and noise reduction)
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