Thesis is the development of radio-controlled lawn mower which can move and cut the grass in the desired environment and dangerous to human. The objective is to develop a radio-controlled lawn mower. The results showed that the rate of fuel consumption of controlled lawn mower in to cutting grass. The height of the grass at 6 8 and 10 cm. It has the average fuel consumption is 113 117 and 123 ml. The average time in the mowing is 6.6 8.01 and 9.69 minutes

This paper presents a study of heat exchanger design for improving the performance of ice maker by using waste water from ice factory. The heat exchanger was made of stainless steel and had 4.023 m2 of heating surface. After using the heat exchange in the waste water pond which the temperature was 0 C the temperature of feed water was decreased from 28 C to 22 C. The COP of the ice maker was increased and the factory can save energy consumption 52034 kWh/year or 61993 baht/year. The payback period was 0.5 year

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 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 220 AC notgood but 12 DC good and use inverter to 220 v. AC

This research presented the details of design and constructions of tesla transformer for testing insulator. The out put of the tesla transformer has a rate of 120 kV and 120 kHz. Tesla transformer consisted of primary coil and secondary coil which is wound on a PVC insulating chamber and use air insulation in part of coaxial. The Rotary Gap is rotated eletrode which use for increasing efficiency of voltage generation. This paper presented the details of design and constructions are explained. And compare the tesla Transformer reproduce which is created the voltage at 120 kV and frequency 120 kHz for used in HighVoltage Laboratory Faculty of Engineering Rajamangala University of Technology Para Nakhon.

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.