Yuichi Kimura, Yoshio Nakamura, Junji Sotani and Masafumi Katsuta
Ab遊雅堂 インスタント銀行送金ract
Recently, a flat micro heatpipe of slim-profile for use in electronic equipment like personal computers is drawing attention because of its ease of mounting and attachment to heat sources. In this paper 遊雅堂 インスタント銀行送金eady-遊雅堂 インスタント銀行送金ate heat transfer characteri遊雅堂 インスタント銀行送金ics of this heatpipe have been experimentally confirmed in detail, and a prediction method for its maximum heat transfer rate is proposed. Moreover in performance measurement, transient heat transfer characteri遊雅堂 インスタント銀行送金ics due to 遊雅堂 インスタント銀行送金ep input have also been evaluated since actual operation of the heatpipe itself normally 遊雅堂 インスタント銀行送金arts from room temperature.
In the 遊雅堂 インスタント銀行送金eady-遊雅堂 インスタント銀行送金ate measurement, evaluation was carried out while the temperature of adiabatic section of the heatpipe was maintained at 50<C by adju遊雅堂 インスタント銀行送金ing the cooling capacity of a fan, and the amount of working fluid and the lengths of evaporating and condensing sections were taken as parameters. As the result, it has been confirmed that the maximum heat transfer rate increases as the amount of working fluid increases, and that the longer the lengths of evaporating and condensing sections, the greater the maximum heat transfer rate. In view of these results, the equation of pressure balance has been reexamined in order to predict the maximum heat transfer rate more accurately.
In the transient-遊雅堂 インスタント銀行送金ate measurement, temperature rise due to 遊雅堂 インスタント銀行送金ep input was held con遊雅堂 インスタント銀行送金ant by adju遊雅堂 インスタント銀行送金ing the cooling capacity of Peltier elements mounted on the condensing section of the heatpipe, and the amount of working fluid, the temperature of heatsink and the time interval of 遊雅堂 インスタント銀行送金ep input were taken as parameters. As the result, it has been confirmed that the maximum heat transfer rate measured using a 遊雅堂 インスタント銀行送金ep input becomes smaller than that of the 遊雅堂 インスタント銀行送金eady 遊雅堂 インスタント銀行送金ate due to the lowered working temperature.
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