水力式カプセル輸送の輸送エネルギーに関する考察

抄録

An approach to optimum design for the energy consumption (kWh/ton-km) of hydraulic capsule transportation system was obtained from calculations as follows:
(1) There are the optimum capsule velocities that the energy consumptions are minimum for each pipe diameter. The larger the pipe diameter becomes the faster the optimum capsule velocity.
(2) As the linear line fill and material pack ratio to capsule are increased, the energy consumptions decrease.
(3) When the bulk density of materials are over 0.5, the value of the energy consumption shows nearly equal.
(4) The energy consumption with steel capsule container shows lower value than the energy consumption with aluminum or plastic capsule container.
(5) As the maximum allowable working pressure becomes over 40kg/cm², the energy consumption rises rapidly.
(6) As coefficient of friction between pipe wall and capsule container is larger, the energy consumption becomes higher rapidly.
(7) Energy consumption of the hydraulic capsule transportation is as lower as belt conveyor compared with another means.