Stirling engine is the external heated engine that heat is sup-plied externally to the heater part of the engine. Thus, Stirling cycle engine can be employed with various sources of renewable energy such as biomass, biofuel, solar energy, geothermal energy, recovery heat, and waste. The integration of gasifier, burner, and heat engine as a power system offers more fuel choices of each local area with potential resources resulting independent from shortage and cost fluctuation of fossil fuel. This research aims to investigate the integration of the Stirling engine with a wood pellet gasifier for electric power generation. Biomass can be controlled to have continuously combustion with ultra-low toxic emission. Stirling engine, therefore, is a promising alternative in small-scale-electricity production. Even though many biomass-powered Stirling engines were successfully constructed and marketed but these engines and the use of biomass resources as fuel for power generation are quite new concepts in some developing countries. Especially, the capital cost of this engine is high and unaffordable for installation compared to other power systems. Therefore, this research aims to the study attractive and feasibility of the compact Stirling engine with green energy.
เนื่องจากความต้องการพลังงานที่มีมากขึ้น แต่เชื้อเพลิงฟอสซิลซึ่งเป็นแหล่งพลังงานหลักมีอยู่อย่างจำกัดและเป็นสาเหตุหนึ่งของมลพิษและภาวะโลกร้อน ดังนั้นพลังงานทางเลือกจึงเป็นกุญแจสำคัญเพื่อความยั่งยืนด้านพลังงาน ประเทศไทยมีศักยภาพของพลังงานชีวมวลจากเกษตรกรรม ดังนั้นการพัฒนาระบบผลิตไฟฟ้าที่มลพิษต่ำและสามารถใช้ได้กับแหล่งพลังงานทดแทนจึงจำเป็นอย่างยิ่ง โดยเฉพาะเครื่องยนต์สเตอร์ลิงซึ่งมีโครงสร้างชิ้นส่วนไม่ซับซ้อน ปราศจากการสันดาปภายในเครื่องยนต์จึงเป็นเครื่องยนต์ที่มีศักยภาพผลิตไฟฟ้าด้วยพลังงานสะอาดและเป็นมิตรกับสิ่งแวดล้อมและความสำเร็จของโรงไฟฟ้าเครื่องยนต์สเตอร์ลิง ในประเทศไทย เพื่อคนไทย
คณะครุศาสตร์อุตสาหกรรมและเทคโนโลยี
This study aims to develop a board game for teaching Integrated Farming System and to examine the learning achievement of third-year vocational certificate students at Ratchaburi College of Agriculture and Technology who used the board game as a learning tool. The research instruments included a board game developed using the Educational Boardgame Design Canvas. The board game is a strategic planning game consisting of five game boards, and 166 cards categorized into four types: 30 event cards, 60 special action cards, 16 character cards, and 60 production cards. It also includes 180 resource tokens of six kinds: 60 water tokens, 60 soil tokens, 45 plant product tokens, 45 animal product tokens, 45 aquatic product tokens, and 45 currency tokens. Additional components include one die and five player aid sheets. The game emphasizes planning and decision-making in integrated farming to maximize production and achievement points under game conditions and simulated scenarios. Research tools also included pre-and post-tests and a satisfaction questionnaire. The results indicated that students’ average scores significantly increased at the .05 level after using the board game, with the average pre-test score at 6.54 and the post-test score rising to 17.71. Additionally, an analysis of student satisfaction with board game-based learning revealed a high level of satisfaction (mean score = 4.45). The highest-rated aspects were the teacher’s implementation of post-tests (mean score = 4.69) and the engaging and diverse teaching methods used (mean score = 4.66).
คณะวิทยาศาสตร์
Atopic dermatitis patients are the second largest number among skin disease patients. There is no cure for atopic dermatitis, and it can only be treated to relieve symptoms, causing chronic disease. There is a chance that opportunistic infections will enter and cause more disease from the patient's wound, causing the patient to have complications from other infections. This study is interested in studying the reduction of the chance of opportunistic infections in patients with atopic dermatitis using natural extracts. The interest is in Plu Kaow and long pepper because there is data supporting the inhibition of microorganisms. The leaves of both plants are crudely extracted, soaked in 95% ethanol for 7 days, filtered with a Buchner filter, and the extracts are tested for phytochemicals to analyze phenolic components, flavonoids, tannins, anthocyanin, DPPH, and tested for antimicrobial properties. The experiments consisted of 5 types of gram-positive and gram-negative bacteria: E. coli, Bacillus subtilis, Pseudomonas aeruginosa, Staphylococcus aureus, and Staphylococcus epidermidis. The researcher expects that this can be further developed and used to treat patients with atopic dermatitis.
คณะสถาปัตยกรรม ศิลปะและการออกแบบ
Interior Architecture Design Project: A Halal Restaurant Integrating the Culture of Songkhla, Thailand