28 Green Power Generations and Environmental Monitoring Systems …
407
2017). In the near future, therefore, it is estimated to be at 400 horsepower at 100 g DE.
In the case of current efficiency comparison of existing linear motor and DE linear
motor (when comparing efficiency of 1 kg/cm (REN21 2018) at 1 g/cm (REN21
2018) of elastomer) DE linear motor is up to about 58 times more efficient when
compared with a DC motor. When comparing the DE linear motor with the existing
DC linear motor, the DE is about 123 times more efficient (Waki 2017). Even if the
DE motor output is increased, the weight will eventually increase and will not change
much. With DE vehicles using rubber (elastomers), it was no longer impossible to
make them more efficient than existing car and train motors. In addition, when using
an existing motor, if it moves quickly, heat builds up and movement is extremely
slow, but the DE motor can be driven accurately regardless of the movement, and no
heat is generated.
28.4.2 Global Environmental Measurement for Accurate
Predictions Using dE Sensor
In recent years, global warming and accompanying abnormal weather patterns have
begun to have an impact on our daily lives. To protect ourselves from the disasters
brought about by abnormal weather, it is important to thoroughly understand the
current situation, that is, how the global environment is changing. The monitoring
of the global environment has been done by various countries individually, but to
monitor environmental changes on a global scale, it will be necessary to build wideranging sensor networks. One of the major issues with that, however, is that there is
no good method for obtaining electrical energy for running this system. Presently,
many if not most of these sensor systems are powered by solar batteries. Yet in some
locations and during some seasons, the daylight hours are extremely short, and in
maritime and desert areas, salt and dust can dramatically reduce the electrical output.
All this makes it difficult to maintain a stable sensor system. One way to solve this
problem is a DE wave power generation system equipped with a DE sensor (Chiba
2019) (Fig. 28.13).
28.4.3 Monitoring the Quality of Water Supplies
and Sewerage Using DE Sensors
Using DEG, electric energy can be obtained from the vibration caused by the flow of
gas and water inside the pipe, and the electric power can be used to drive a DE sensor
as well. Figure 28.11 shows a system in which a small DEG is attached to the inside
of a water pipe to vibrate the DE by the flow of water to generate electricity (Chiba
and Waki 2011). Although the power available from such a system is quite small, it
407
2017). In the near future, therefore, it is estimated to be at 400 horsepower at 100 g DE.
In the case of current efficiency comparison of existing linear motor and DE linear
motor (when comparing efficiency of 1 kg/cm (REN21 2018) at 1 g/cm (REN21
2018) of elastomer) DE linear motor is up to about 58 times more efficient when
compared with a DC motor. When comparing the DE linear motor with the existing
DC linear motor, the DE is about 123 times more efficient (Waki 2017). Even if the
DE motor output is increased, the weight will eventually increase and will not change
much. With DE vehicles using rubber (elastomers), it was no longer impossible to
make them more efficient than existing car and train motors. In addition, when using
an existing motor, if it moves quickly, heat builds up and movement is extremely
slow, but the DE motor can be driven accurately regardless of the movement, and no
heat is generated.
28.4.2 Global Environmental Measurement for Accurate
Predictions Using dE Sensor
In recent years, global warming and accompanying abnormal weather patterns have
begun to have an impact on our daily lives. To protect ourselves from the disasters
brought about by abnormal weather, it is important to thoroughly understand the
current situation, that is, how the global environment is changing. The monitoring
of the global environment has been done by various countries individually, but to
monitor environmental changes on a global scale, it will be necessary to build wideranging sensor networks. One of the major issues with that, however, is that there is
no good method for obtaining electrical energy for running this system. Presently,
many if not most of these sensor systems are powered by solar batteries. Yet in some
locations and during some seasons, the daylight hours are extremely short, and in
maritime and desert areas, salt and dust can dramatically reduce the electrical output.
All this makes it difficult to maintain a stable sensor system. One way to solve this
problem is a DE wave power generation system equipped with a DE sensor (Chiba
2019) (Fig. 28.13).
28.4.3 Monitoring the Quality of Water Supplies
and Sewerage Using DE Sensors
Using DEG, electric energy can be obtained from the vibration caused by the flow of
gas and water inside the pipe, and the electric power can be used to drive a DE sensor
as well. Figure 28.11 shows a system in which a small DEG is attached to the inside
of a water pipe to vibrate the DE by the flow of water to generate electricity (Chiba
and Waki 2011). Although the power available from such a system is quite small, it