Solar Energy Borehole Pumps for Self-Reliance in Anubankohkood school, Trat Province

Abstract

        The purposes of this research were to analyze and evaluate the efficiency of solar energy borehole pumps, the amount of produced water per use, economic cost analysis and research integration with learning and teaching of Anubankohkood School. The results showed that after installing the solar energy borehole pumps which consisted of 10 solar panels with 325 watts, AC convertor with 2 horsepower (1.5 kilowatts), 3-phase borehole pumps with 2 horsepower that controlled water pumping using a paddle switch and a switch to control pressure level in a  15-cubic water tank (15,000 liters) which worked together with electric current from electricity in order to compensate when the solar panels could not produce electric current. Light intensity, electrical voltage and electric current produced by the solar panels were analyzed from 08:00 to 17:00 and found that if the light intensity increased, the electric current would increase by which the highest mean was at 12:00 with 50,725 lux gaining 5.94 ampere of electric current that could pump average water of 80 liters per minute or 4,800 liters per hour which could add water into the   15,000-liter water tank between 2.5 to 3 hours. This system could reduce 30 percent of electric expense of the school comparing with the same period. The integration with science learning and teaching of grade 1 to grade 6 in Anubankohkood School together with the graduate students of Technology Program from Faculty Industrial Technology as well as lectures and interested people, all together 127 people, using a five-level rating scale satisfaction questionnaire found that the satisfaction in terms of understanding gained the highest level of satisfaction by which the X (Mean) of understanding after training and practice was 4.88 or 97.60 percent. In terms of knowledge use found that the ability to competently practice the received knowledge on electrical power and conform with the energy reduction participation of the country gained the highest satisfaction of X (Mean) 4.91 or 98.20 percent.