1. Design and Fabrication of the Heat Pipe Generator
MDEATED 2012, PATTAYA, THAILAND
Design and Fabrication of the Heat Pipe Generator
C.F. SHEN
Graduate Institute of Mechatronic System Engineering National University of Tainan , Taiwan, R.O.C
Hello everybody, hello professor, I come from National University of Tainan.
My name is Shen Cheng Feng.
I would introduce my topic is design and fabrication of the heat pipe generator.

2. Outline Introduction Purpose Experiment Results and Discussions
Conclusion
This is my outline. First is the introduction, second is purpose, and next is experiment, and last is conclusion.

3. Introduction
In 1999, the steam momentum resulted in the mechanical energy is used first with the turbine and transfers to electricity in the heat pipe.
The patent related to one kinds of the heat pipe generator with turbine is registered in
The most important issue is to find the potential energy. The design of the energy harvester is a new and interesting topic.
In 1999 first propose the use of the steam momentum resulted in the mechanical energy is used first with the turbine and transfers to electricity in the heat pipe.
And then in 2008 the patent related to one kinds of the heat pipe generator with turbine is registered.
There is no doubt about the electricity generated by the turbine, but it needs many complex processes to build this heat pipe generator.
A. Akbarzadeh , et al,1999
U.S Patent, T. NGUYEN, et al. 2008

4. + = Introduction What is heat pipe generator ? Heat Pipe Piezoelectric
When mechanical energy is applied to piezoelectric materials, positive and negative charges move to opposite ends of the material and generate the electric current. + =
The heat pipe generator is combines with the heat pipe and piezoelectric generator.
When mechanical energy is applied to piezoelectric materials, positive and negative charges move to opposite ends of the material and generate an electric charge.
Heat Pipe
Piezoelectric
Harvester
Heat Pipe Generator

5. Introduction What is heat pipe ?
A heat pipe is a simple device that can quickly transfer heat from one point to another. They are often referred to as the "superconductors" of heat as they possess an extra ordinary heat capacity & heat transfer rate.
A heat pipe is a simple device that can quickly transfer heat from one point to another.
They are often referred to as the "superconductors" of heat as they possess an extra ordinary heat transfer capacity & rate with almost no heat loss.
Heat pipe thermal cycle.

6. Introduction
The utilization of the momentum resulted from the phase change within the heat pipe. When mechanical energy is applied to piezoelectric materials, and generate an electric current.
Piezoelectric
Water vapor
Water
The utilization of the momentum resulted from the phase change within the heat pipe.
When mechanical energy is applied to piezoelectric materials, and generate an electric current.
Heater
Schematic diagram of the experimental apparatus.

7. Purpose
The purpose of this paper focuses on the investigation of the relationship of the velocity of the vapor and the vibration-induced electricity.
The purpose of this paper is on the investigation of the relationship between the velocity of the vapor and the experiment of the vibration-induced electricity.

8. Experiment The schematic diagram of the experimental system.
Hot Wire Anemometer
Digital Storage Oscilloscope
Computer
Schematic diagram of the experimental apparatus has two parts.
The fixed piezoelectric and nozzle are with regard to generator part, and then the container and heater are with regard to heat pipe part.
We will to use the digital oscilloscope is measured voltage, and the hot wire anemometer is measured velocity of the vapor, the data logger is record input heat and vapor temperature.
The power supply is control by the input power.
Data logger
Power Supply
The schematic diagram of the experimental system.

9. Experiment PVDF PVDF CASE1 CASE2 (mm) (mm)
This slide describes the type of piezoelectric component.
Two kind of cantilever type are used in the experiment.
The length of the cantilever type is 60mm, and the thick is 0.2 mm.
The PVDF material is used to combine with the copper cantilever beam.
(mm)
(mm)
CASE1
CASE2
Schematic diagram of cantilever type in the experiment.

10. Results and Discussions
From this fig, we can see the relationship between of the velocity of vapor and the heating power.
Basically, the velocity of the vapor is increased with input power.
The steam velocity profiles with the different heating power.

11. Results and Discussions
CASE1
Heat source
RMS
100W
237mV
90W
160mV
80W
130mV
70W
117mV
60W
94.5mV
From this fig, we find that there is a great effect on the amplitude of input heat source, and the frequency is 60Hz.
The resonant frequency of the output voltage in Case1.
Photograph of Case1

12. Results and Discussions
CASE2
Heat source
RMS
100W
513mV
90W
451mV
80W
387mV
70W
331mV
60W
252mV
It can be seen from the fig that the same phenomena are observed in case2, besides the greater amplitude is happen in case2.
The resonant frequency of the output voltage in Case2.
Photograph of Case2

13. Results and Discussions
Heat source
CASE2
60W
166%
70W
182%
80W
197%
90W
181%
100W
116%
From this fig, we can see the root mean square value in Case 2 is higher than Case 1.
The RMS of output voltage with different heating power in Case1 and Case2.

14. Conclusion
The electric current driven by the steam is done and proved by this device.
The relationship of steam velocity and piezoelectric current is well built in this study.
Now that based on the above discussion and analysis of this study.
The electric current driven by the steam is done and proved by this device.
The relationship of steam velocity and piezoelectric current is well built in this study.

15. Thank you for your attention