The objectives of this study is to increase efficiency of steam boiler 2.5 ton per hour which used liquid petroleum gas LPG as fuel. bringing heat recovery inside boiler chimney stack to preheat feed water with technology heat Exchanger Economize. Taking the economizer with its pipe length of 1000 mm and 62 mm diameter for 64 pipe is a cross flow with staggered tube to increase water temperature before entering the boiler pass to deaerator The study is carried out to compare the differences and savings of the feed water temperature steam boiler efficiency and fuel consumption between having the economizer installed and uninstalled. reference to study The result after installed the heat exchanger economizer the feed water is passed into steam boiler deaerator higher temperature from 38.30°C to 67.20°C which leads to increase efficiency of steam boiler from 81.59 % to 85.65 % meaning that the fuel consumption of steam boiler will be reduced 4.97 %

Frozen fish thawing method using an Electrostatic Technology from a High Voltage Electricity (ETHVE) is one of an alternative method. Due to this method the material has a uniform temperature and also increase the temperature of the material resulting in a short time thawing process. Therefore the objective of this research is to develop the thawing method for frozen tunas using an ETHVE compared to some water immersion method. The experiment was carried out by using frozen tunas with an initial temperature of -18 °C then thawing frozen tunas with the ETHVE until the temperature of the tunas increased to 5 °C. Then the tunas were steamed until the temperature of 60 °C compared to that water immersion method. The qualities of steamed tunas were determined by percentage of tunas meat and tunas blood. The results showed that the tunas thawing techniques using the ETHVE provided a uniform temperature of tunas meat both the surface and the center the piece of tunas. In addition this technique also provided a higher percentage of tunas meat and tunas blood and some surface area has slight burns compared to that water immersion method. The frozen tuna which was thawed by using the ETHVE method which some surface and center using temperature at 5 °C and –2 °C respectively. The tunas surface area were slightly burned the percentage of tunas meat and tonas blood were 45% and 5% respectively. During the frozen tuna thawing using the water immersion method has the surface and center temperature at 12 °C and –2 °C respectively; The tunas surface area were very burnt the percentage of tunas meat and tunas blood were 42% and 3% respectively.

The objectives of this study were to 1) study the satisfaction of users of the Treasury Division Rajamangala University of Technology Phra Nakhon and 2) to compare the satisfaction of users of Rajamangala University of Technology Phra Nakhon according to their personal classification. Thedata were collected from a sample of 214 people. The tool used for collecting data was a questionnaire and the data analysis was performed using frequency percentage mean standard deviation and One-Way ANOV). Scheffe was applied to test the differences of each pair. The results of this research revealed all four aspects of the satisfaction of users of the Treasury Department of Rajamangala University of Technology Phra Nakhon which included the: staff service process of service process facilities and service quality at a moderate level.

This research aims to 1) To study the demand for website electronic innovation of student in primary schools in the the eastern provinces 2) to develop a website to teach. Innovative electronic media to promote the love of reading among students in primary schools in the eastern provinces 2) to develop a website to teach. Innovative electronic media to promote the love of reading among students in primary schools in the eastern provinces 3) to transfer technology to students in elementary school eastern provinces. Experimental research using a questionnaire validated by experts in the collection of quantitative data from a study of 35 people. To analyze the process by com to analyze the process by computer software using the mean and standard deviation the research found that ; 1. Innovative web based tutorial lessons in Thailand. Overall the students were demanding site. Electronic innovations are included in the image at the highest level. When considering the needs of the students with innovative teaching lessons. students Learning is fun not boring at the very highest level. 2. The development of innovative teaching lessons Site in Thailand. Appropriate on the basis of an expert assessment at the level most appropriate. And were interested to learn about innovative media sites as a whole at a high level. Considering it was found that students are interested in learning about innovative media teaching Thailand grade level. In most 3. The transfer of technology to students in elementary schools found that Eastern provinces students in the overall interest and willingness to learn at a high level. However when considering the students were interested in learning about how to play educational puzzles in most. 4. Assessment of the satisfaction of the technology. Students interested in an overview and intends to remain at the highest level. However when considering that the innovative teaching lessons. students Learning is fun not boring at the very highest level.

The objectives of this research to study social attitude towards and find relation between the social attitude towards sexual diversity with students Bachelor of Education in Faculty of Home Economics Technology Rajamagala University of Technology Krungthep individual factors and external factors. The methodology: survey social attitude of population and sampling group had been used 233 persons (12 teachers 94 undergraduate students and 127 secondary school students).nTools are questionnaires the interview schedule and the observation and data analysis by usage of the descriptive statistics and the inferential statistic. The results of the research found that: 1) The social attitude toward that includes teachers and students is high level on the opinion and the sense but the regulation of behavior is middle level. In the other hands the social attitude toward of the student only is high level on the opinion the sense and the regulation of behavior. 2) The individual factor (ages) of undergraduates and three concepts of attitude is implicitly statistical significance (p < 0.05). The individual factors (genders and educational levels) on the attitude of regulation of behavior of the secondary school student are implicitly statistical significance (p < 0.05). The external factors of all population and samplings are implicitly statistical significance (p < 0.05)