열매체유 유동층 열교환기의 전열성능에 대한 실험적 연구

• Published in: 설비공학 논문집, 27(3) Vol. 27; no. 3; pp. 146 - 151
• Main Authors: 박상일(Sang-il Park), 고창복(Chang-Bok Ko), 이영수(Young-Soo Lee)
• Format: Journal Article
• Language: Korean
• Published: 대한설비공학회 2015
• Subjects: 기계공학; Heat transfer coefficient (열전달계수); Fluidized bed(유동층); Heat exchanger(열교환기); Heating medium oil(열매체유)
• ISSN: 1229-6422; 2465-7611
• DOI: 10.6110/KJACR.2015.27.3.146

The heat transfer performance of heating medium oil fluidized bed heat exchanger was measured. The operation variables were air flow rate, air inlet temperature, moisture content, water flow rate and water inlet temperature. The outside heat transfer coefficient was determined from the heat exchanger experiment and its experimental correlation was determined as a function of air velocity and viscosity of heating medium oil. Effect of viscosity was well agreed with the previous studies. Errors of the correlation equation was less than about 10% for outside heat transfer coefficient developed in this study when compared with the measured value. Hot water with the temperature greater than $77^{\circ}C$ could be produced by using the heating medium oil fluidized bed heat exchanger.