Papers by putthadee ubolsook
Assessment and Approach to Reduce Greenhouse Gas Emissions from End of Life Solar Panel Waste for Thailand
The Journal of King Mongkut's University of Technology North Bangkok
The objective of this paper is to analyze the shape and cross-section of bamboo structure for a s... more The objective of this paper is to analyze the shape and cross-section of bamboo structure for a single greenhouse in Thailand. The green house is designed to open on the roof for ventilation, and under geometrical constrains for minimize deflection. We calculate the cross-section, self weight and displacement values of bamboo structure to determine the truss shape design problem in the greenhouse. The truss shape has designed in eight different types: Double Howe, Modified Fan, Modified Queen, Pratt, Fan, Double W, M shape and W shape. The displacement value in each truss shape is determined by using standard load (Dead Load, Live Load, and Wind Load) to calculate axial force in each truss shape member. The results of eight type displacement values show that the minimum displacement is Modified Fan truss shape and the minimum weight of the trusses structure in greenhouse is Double Howe truss shape.
Development of High Compressive Strength Fire Brick
Applied Mechanics and Materials, 2013
This research into the development of high compressive strength brick reports the experiment of t... more This research into the development of high compressive strength brick reports the experiment of the high compressive strength brick made out of alumina and rice husk ash with the following ratios: 40:60, 50:40, 60:40, 70:30 and 80:20, with 10% or 15% of sodium silicate according to weight. The burning temperature was set at 1,000 °C and 1,200 °C. It was found that in term of density, the brick with the ratio of 80:20 with 15% of sodium silicate yielded the highest density with 3.3 g/ cm3. As for the compressive strength, the brick with the ratio of 80:20 with 10% of sodium silicate burned at 1,200 °C yielded the compressive strength of 528 kg/cm2. The brick with the ratio of 80:20 with 10% of sodium silicate had the lowest absorption of 15.68%. As for the shrinkage, the brick with the ratio of 40:60 with 10% of sodium silicate had the highest shrinkage of 1.98%.
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Papers by putthadee ubolsook