The purposes of the research were; 1) to study the relative rotation of AC-generator 2) to study the angular velocities of magnetic coil and permanent magnetic influence generating voltage of AC-generator and 3) to construct predictive equations of generating voltage of AC-generator. By the 12-V 6-pole alternator of motorcycle Pearson’s correlation and regression analysis the findings revealed that: 1) At the lowest relative angular velocity of 376 rpm the generating voltage is 3.28 V. While the highest relative angular velocity of 2280 rpm the generating voltage is 22.98 V. 2) The angular velocity of permanent magnetic has great influences on generating voltage than the angular velocities of magnetic coil at the .01 level of significant and 3) function as below : Generating voltage = 0.806 (Velocity of permanent magnetic) + 0.634 (Velocity of magnetic coil)

Research this project invents for design and build the water turbine produce the electricity by set up the equipment produces the electric current from water energy flows from the nature which be new choice for Thailand in using energy pays back. then born the idea in energy water lead flows in the tide comes to use is born the advantage The water turbine has produced the electricity that does designing and establish to compose 3 part importance be the part of water buoy water turbine part is the pin wheel that is made of the iron I each have a draught 30-40 centimeter group part carries round which compose the gearwheel yes carry round and a transmitting belt carry round . From pin wheel test produces the electric current that establishes to induce float in a river already record seek feeling numb fire effiCiency reaches to open the stump makes straight for to share 5 the ampere water speed flows to share 12 the meter / minute I the speed round the pin wheel turns to share 4 rpm. and tend that increase follow the speed of the water that increases.

This research studies designing building and set up a wind turbine that produce the electric current for decrease the contamination that is poisonous be that know that source of electric energy majority production uses the principle burns fuel is a principle which the way aforementioned is building contamination is poisonous moreover still have the prediction from a scientist arrives at crude oil amount that is will down in the future in now a scientist and an engineer differs to are bound for seek the power resource pays back fuel by consider good environment with therefore in this our project has done work education of a wind mill will by have electric power size about 200 watt the religious routine by a wind mill does feeling numb electric charge that wind speed about 3 – 17 the meter builds [ wasp ] second wind topmost speed that can do feeling numb electricity about 17 the meter builds [wasp] second therefore in installation wind mill will should consider the area to will set up that is appropriate must is place where has wind speed shares 5 – 6 the meter builds [ wasp ] second by a wind mill will begin feeling numb electric charge will do feeling numb electric charge keeps in battery12V (12V/100Ah x 2 child sizes are) by feeling numb electric charge will have control feeling numb electric charge when there are 3-17 wind meter speeds build [wasp] second but when there is wind speed abounds 17 more the meter builds [wasp] second the group controls feeling numb electric charge will cut the circuit goes out for protect the equipment within of wind mill group.

This paper proposes a study of an Ozone generator. The generator under the study is designed using the electrode with uniform field. The electrode is constructed in the plane shape with positive potential. The transformer oil is used as insulating materials to prevent discharges around the electrode discharges in the air void depends on the size the types of dielectrics and level of applied voltage. Between the electrode and the air void there is acyclic dielectric. The stainless electrode with water is used as a ground potential. The breakdown depends on the electric field intensity. It is found that there is sufficient amount of ozone due to the ionization Development and design ozone generator this research electric field intensity on the water type and this can be used as a principle to construct a new type of ozone generator.

This paper presents a testing of three insulators namely solid fluid and gas for choosing the best electric insulators. In order to generate the ozone gas the insulator must be selected in electrode set. Nowadays the insulators do not have the optimal test procedure for getting total efficiency. Therefore in this paper a design of ozone generator is proposed by using the fundamental of electric field stress. The ozone generator is a coaxial cylindrical electric type that has solid insulator in center of glass tube. This solid insulator will be dielectric among the high voltage electrodes. Ozone gas will generate in this air gap. This paper also focuses on the insulator testing of three insulators. It will find the efficiency of 3 insulators and compares them with the density and stress of ozone gas. The experimental results show the performance and ensure the optimal ozone generator design.