| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
|
|---|
| Outline of Final Research Achievements |
Heat transfer rates were obtained from the differences in gas enthalpies, determined by total temperatures and pressures measured at the inlet and outlet of the micro-tube. Heat transfer rates were also compared with those obtained from ideal gas enthalpies determined by only total temperatures and from the Nusselt number of incompressible flow.
Both heat transfer rates, Q_h obtained from the total enthalpy difference between the micro-tube outlet and the stagnation and
heat transfer rates, Q_T obtained from the total temperature difference are higher than heat transfer rates obtained from the bulk temperature of incompressible flow because of the additional heat transfer. And the difference between Q_h and Q_T is large with the stagnation pressure increasing since the Joule-Thomson effect present in a real gas.
|
