The purposes of this research was to study and to compare the students’ satisfaction of the school lunch project in Demonstration School of Suan Sunandha Rajabhat University classified by gender age grade levels and amount of participation in the school lunch project. A sample of this research was 297 students selected by stratified sampling Research instrument was the questionnaire. The data were statistically analyzed in terms of frequency percentage mean standard deviation and t-test for dependent samples. The results of the research indicated that : 1. The satisfaction of most girls from grade levels 1-3 and amount of participation in the project were at high level in all aspects of food services place equipment cost and personel. 2. The satisfaction of students with different genders ages grade levels and amount of participation toward the school lunch project was significantly different at 0.05 level.

This research aimed to transfer technology about biogas digester construction and applying the biogas in household to teachers and students in Suksasongkhro Tak school. They were instructed and trained about biogas digester construction and applying the biogas produced from animal manure on cooking in household to reduce using LPG. The research operations were separated to 4 phases. The first was preparation and making understanding. The second was instruction and practical training. The third was monitoring and project evaluation. The last one was organizing the science project event. The number of participant teachers and students was 330. From the result of 5 scale questionnaire in project evaluation it was found that the evaluation about knowledge and understanding showed the maximum scale ( = 4.42 SD = 0.84). The second was about location duration and food ( = 4.36 SD = 0.75). The evaluation about the knowledge showed the lowest scale ( = 4.28 SD = 0.77). For the project evaluation of success it was found that every biogas digester done by participants could produce the biogas and it could be use to replace LPG and reduce expenditure about 1400 – 1500 baht/month. The total construction cost of biogas production system was 58000 baht. So the payback period was 3.22 years.