CONCLUSION

Based on the development of photovoltaic-thermoelectric hybrid energy harvester as electricity generator is very interesting.  This hybrid system as electricity generator is a combination of two types of renewable energy that connected in series to charge controller circuit. Core intent is to design and evaluate a new electrical system with used of sunlight and heat.  This system combine both energy that created from the sunlight. From this hybrid system as renewable energy and it can be implement in application as unlimited energy source. because, sunlight gives energy to solar panel will convert the energy into electrical power . Using this hybrid system, can reduce use of fuel which can give bad effect to the earth. Then, by using this hybrid system, the bill of electricity can be saved. In Malaysia, most of the area received enough amount of sunlight radiation, so that this hybrid system is very suitable to use.

WORK PLAN

The time frame allocated for this research study is 6 months. It start in july 2012 and completed in November 2012. The gantt chart for the project and miles stone are shown as table 1.

            In this project, the most difficulty  is to design and test the circuit because circuit need to be perfectly function. When construct the circuit will have some problem such as failure of components or module , lack of maintenance and system overload. So the knowledge about the circuit and component should be taken a long period to be done. Other than that, the difficulty that wills faces is environment factors (such as not enough photon energy from sunlight, didn’t have wind and etc.). To solve these kind of problems it should be referred to professional that familiar with the hybrid energy harvester prototype and also do troubleshoot by correcting the failure parts or system. This data is then analyzed, with many simplifying assumption applied. The result will be display by using DAQ and LABVIEW software.

The prototype of PV-TE hybrid system will be develop to enables the community to visualize the impact and application of the proposed methods in determining the best solution in PV-TE hybrid system design with respect to reliability and cost. This prototype will be presented in the FYP Presentation Day. we are also need to take a video as a demonstration when we are try the prototype in case there are something happens that will influence the process in that day. 

BENEFITS/CONTRIBUTION

Environmental Benefits: As PV generates electricity from light, PV produces no air pollution or hazardous waste. It doesn't require liquid or gaseous fuel to be transported or combusted.Economic and Social Benefits: Sunlight is free and abundant. Photovoltaic systems allows to generate electricity and store it for use when needed. It frees  from uncertainties and foreign oil dependence. This energy source is free, clean and highly reliable. PV systems are long-lasting and require little maintenance. The benefits of Photovoltaics far outweigh the initial cost the systems.

Solar cells make absolutely no noise at all. They do not make a single peep while extracting useful energy from the sun. On the other hand, the giant machines utilized for pumping oil are extremely noisy and therefore very impractical. Solar energy creates absolutely no pollution. This is perhaps the most important advantage that makes solar energy so much more practical than oil. Oil burning releases harmful greenhouses gases, carcinogens and carbon dioxide into the precious air. Very little maintenance is required to keep solar cells running. There are no moving parts in a solar cell, which makes it impossible to really hurt them. Solar cells tend to last a good long time with only an annual cleaning to worry about. Solar panels and solar lighting may seem quite expensive at first purchase it, but in the long run use will find that saving quite a great deal of money. After all, it does not cost anything to harness the power of the sun. Unfortunately, paying for oil is an expensive prospect and the cost is still rising consistently. Solar powered panels and products are typically extremely easy to install. Wires, cords and power sources are not needed at all, making this an easy prospect to employ. Solar power technology is improving consistently over time, as people begin to understand all of the benefits offered by this incredible technology. As our oil reserves decline, it is important to turn to alternative sources for energy. Solar energy is a completely renewable resource.

Combined photovoltaic and thermoelectric source are an almost miraculous way of producing electricity directly from sun without concern for energy supply or environment harm.

OBJECTIVE

The main objective of the project Develop and performance analysis of photovoltaic-thermoelectric hybrid energy harvester prototype on wall building by using labview  is to combine two types of energy source at difference situation to a single electric generator system. The main idea is to design a prototype of an electrical energy device for renewable energy sources of solar and thermal into a single electric generator system. There are several objectives focused on this project:

Flow chart

Figure 4: Block diagram

   Explanation block diagram

               This project focuses on designing the hybrid solar and thermal for low voltage application. The hardware part, which is for input voltage is solar panel and thermoelectric module The main devices of this project is  thermoelectric cell, solar panel and other related circuit. The photovoltaic panel is use to detect light energy from solar which is main sources, thermoelectric module is use as a device to collect heat produce The two devices are connected in series to provide more output voltage. From the block diagram, there is a 3 differences type of thermoelectric cell will place at difference situation. In Type 1, the thermoelectric will connect to rectifier circuit. So, that the output in thermoelectric will be  hybrid with solar panel output voltage. The ouput voltage from two sources will connect to two supply controller. After that, the result will be send to DAQ by using LABVIEW software. The function of rectifier circuit is to not allowed the current in thermoelectric in reverse direction. This step of work are same goes with type 2 and type 3.

    Material used:

Figure 5: photovoltaic panel

Types of photovoltaic panel that be used in this project is mono-crystaline silicon. Photovoltaic system use solar electric panels to directly convert the sun energy into electricity. Figure 5  above shows the photovoltaic panel that be used in this project.

Figure 6:  Thermoelectric Module TEC-12730T200 

In this project, the types of thermoelectric module that being used is type TEC1-12730T200 which consists of 49 thermocouples arranged electrically in series and thermally in parallel. The bonded metal conductors enable the HZ-14 module to operate continuously at temperatures as high as 250°C (480F) and intermittently as high 400°C (750F) without degrading the module. While the TEC1-12730T200 is well suited for waste heat recovery its reversible properties make it ideal as a thermoelectric cooler, especially for high temperature application where sensitive electronic equipment just be cooled to below the ambient temperatures. 

METHODOLOGY

INTRODUCTION

This chapter will explained on the methodology and material of the final year project report. Each part that has been selected has as its own purpose. This project focuses on designing the solar and thermoelectric place at wall building for low voltage application. Mean that it’s consist of hardware and software part which for input voltage especially solar panel and thermoelectric module. The software part is to display the output get by using LABVIEW. The rest information of this project will be informed throughout this report.

METHODOLOGY

The main focus of this research is to test and measure the voltage output of combination of photovoltaic and thermoelectric. The method or source that are used to find the information is from internet research for example google and blog. Other than that is article, journals, magazine, and book. The solar with thermoelectric system is a project that combines the solar cells (photovoltaic and thermoelectric) The main device of this project is thermoelectric and photovoltaic. The photovoltaic panel is used to detect UV light energy from solar which is main sources, thermoelectric module is use as a device to collect heat produce. This two source are connect in series to provide more output voltage. This project is involve engineering software such as labview to display electrical properties and multisim to construct circuit.

Figure 3: three difference situation to place the thermoelectric cell.