Toys Design from Scrap Wood Waste by Pallet Maker Group Co., Ltd.
บริษัท พาเลท เมกเกอร์ กรุ๊ป จำกัด เป็นผู้ผลิตพาเลทไม้ ซึ่งมีกระบวนการผลิตที่ทำให้เกิดเศษไม้เหลือทิ้งจำนวนมาก เศษไม้เหล่านี้มักถูกกำจัดทิ้งหรือนำไปขายในราคาต่ำ ซึ่งนอกจากจะเป็นการสูญเสียทรัพยากรแล้วยังส่งผลกระทบต่อสิ่งแวดล้อม เช่น การเพิ่มปริมาณขยะและปัญหาการตัดไม้ทำลายป่า โครงการนี้จึงมีแนวคิดในการนำเศษไม้เหล่านี้มาออกแบบและผลิตเป็นของเล่นเชิงการศึกษาที่ช่วยเสริมสร้างพัฒนาการของเด็ก โดยมุ่งเน้นให้เป็นของเล่นที่ปลอดภัยและเป็นมิตรต่อสิ่งแวดล้อม นอกจากนี้ โครงการนี้ยังสอดคล้องกับแนวคิดเศรษฐกิจหมุนเวียน (Circular Economy) ที่มุ่งเน้นการใช้ทรัพยากรอย่างคุ้มค่าและลดขยะ ด้วยการนำวัสดุเหลือใช้กลับมาใช้ใหม่ (Upcycling) อีกทั้งยังแสดงให้เห็นถึงความสำคัญของการออกแบบอย่างรับผิดชอบ ที่สามารถสร้างมูลค่าเพิ่มจากวัสดุที่ถูกมองข้ามได้อย่างสร้างสรรค์
คณะวิศวกรรมศาสตร์
In Thailand, the quantity of old tires has been increasing annually, posing a significant environmental challenge due to their non-biodegradable material. However, old tires contain an internal porous structure, which suggests their potential application as sound-absorbing materials. Porosity is a key characteristic that enables materials to trap sound waves, making them effective for noise reduction. Therefore, this study aims to investigate and develop sound-absorbing materials from old tire rubber powder. The methodology involved mixing old tire powder with fresh latex at a ratio of 1:2, followed by drying at a temperature of 120°C for four hours. Subsequently, the physical properties influencing sound absorption, including density, porosity, and water absorption, were analyzed. The results indicated that the sound-absorbing material produced from old tire rubber powder showed a density of 0.96 g/cm³, a porosity value of 0.45, and a water absorption of 11.03%. Therefore, the findings suggest that old tire rubber powder has the potential to be effectively utilized as a sound-absorbing material.
คณะเทคโนโลยีการเกษตร
The objective of this experiment was to determine the effect of nitrogen and potassium concentration combination with photoperiod on the growth of Viola in a plant factory to increase the quality of the products, reduce the production time and increase the production cycle throughout the year. The experimental plan was 3x3 Factorial in CRD with nine treatments and three replications (six plants per replication). The factor of this study was two factors; the first factor was three different concentrations of nitrogen and potassium in ratios of 1:1, 1:2 and 2:1. The second factor was the application of different photoperiods. There were 1) 24-hours photoperiod, 2) 8-hours light/16-hours dark photoperiod (Induced flowering state: 13-hours light/11-hours dark photoperiod) and 3) 5-hours light/3-hours dark photoperiod. Controlled temperature at 25 °C, the EC=1.5-2.0 mS/cm and the pH=5.8-6.5 in all treatment. The result showed that the concentration of N: K in the ratio of 1:1 combined with 24-hour photoperiod was the most vegetative growth and also maximizes reproductive growth. The overall great sensory evaluation was an acceptable level and suitable for cooking or decorating dishes. Therefore, the concentration of N: K in the ratio of 1:1 combined with 24-hour photoperiod is the best treatment to increase the quality of the product, reduce the production time of viola flowers in each cycle from 90-100 days down to 43-45 days which is good for farmers.
คณะวิศวกรรมศาสตร์
This research focuses on the design and development of a high-power converter to regulate energy supply from solar cells (Photovoltaic: PV) to a hydrogen production unit (Electrolyzer), which is a crucial component in advancing renewable energy in alignment with the RE100 initiative. Specifically, this study targets Green Hydrogen, which is generated through the water electrolysis process using clean energy from solar cells, ensuring zero emissions and environmental sustainability. The proposed converter includes of a Three-Level NPC Inverter, transformer, Full-Bridge Rectifier, and LC filter to enhance the power quality supplied to the electrolyzer. The system's design and simulation were conducted using MATLAB and Simulink to evaluate circuit performance and analyze operational efficiency. Simulation was conducted using MATLAB and Simulink to evaluate circuit performance and analyze operational efficiency. Additionally, a microcontroller-based control system is integrated with a gate driver circuit to optimize the electrolysis process by reducing power losses. This proposed converter effectively converts PV energy into suitable voltage and current levels for the electrolyzer while maintaining high hydrogen production efficiency.