圧力波形による小型パルスチューブ冷凍機の評価

概要

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This paper describes the experimental results of a small size pulse tube cryocooler (PTC) with threetypes of phase shifters. The phase shifter plays a key role in the cooling performance of the PTCs. Thebasic, orifice and double inlet phase shifters have been tested. In particular, we take notice oftemperature at the cold end, and pressure at the hot-end of regenerator and pulse tube. The innerdiameter and length of pulse tube are 14 mmφ and 22 cm, respectively. Copper screens (200 mesh) ofdiameter of 18 mm were filled in the regenerator as a regenerator material. The PTC is operated at 4.5Hz with an air cooled compressor of 800 W. Attained temperature at the cold end of basic, orifice anddouble inlet phase shifters were 205.6, 133.7 and 84.5 K, respectively. The characteristics pressure wavecurves were observed in each phase shifter.
大島商船高等専門学校の論文
2010-12-01