Recently the Thai industry has continually grown up and also plays a role to economic growth in the country which affects the many of automotive components to be in the market. While the degeneration and waste of automotive components had increased as well. Therefore a crash box is one of the automotive parts which damage from the accident. Consequently the researchers have created a prototype material to develop into the crash box to reduce the environment problem from automotive parts. The random mixture of water hyacinth and husk was attempted to up to 5 ingredients. By forming a solid cylinder and 200 mm of long was used as prototype of the crash box in this research. Thus the energy absorption using compressing test was attempted to by the universal testing machine. The results showed that using polymers as a binder with 50% of water hyacinth and 50% of husk was the better ability of energy absorption. Regarding this ingredient 1612444 J/m3 of the energy absorption was referred to indicate that is the best ability of energy absorption. It is probably reduce the severity of the impact in the event of pedestrian collision.

Recently the Thai industry has continually grown up and also plays a role to economic growth in the country which affects the many of automotive components to be in the market. While the degeneration and waste of automotive components had increased as well. Therefore a car hood is one of the automotive parts which damage from the accident. Consequently the researchers have created a prototype material to develop into the car hood which made from the husk and water hyacinth. The random mixture of water hyacinth and husk was attempted to more than 3 ingredients. By forming a flat plate with thickness between 1 to 3 millimeters was used as prototype of the car hood material in this research. Thus the mechanical properties such as compressing and bending test were attempted to by the universal testing machine. The results showed that using resin as a binder material (Reinforced resin by water hyacinth and husk) will have the less ability of energy absorption. While using polymers as a binder (Polymer resin by water hyacinth and husk) will have the better ability of energy absorption. The properly mixture between water hyacinth and husk referred to the energy absorbing properties is 50:50 because the least linear stiffness is 1.087 N/mm. Besides the ability of energy absorption is 1612444 J/m3 which is property of this ingredient can reduce the severity of the impact in the event of pedestrians collision in the best.

Recently Baan Pasang Wiwat Pineapple Leaf Community Enterprise Nanglae Sub-district Muang District Chiangrai has used a spherical cooking stove made of stainless steel to cook pineapple leaves. The cooking capacity was 40-50 kilograms each time and the cooking time was approximately 4 hours. The fuel was wood which was used for about 50 kilograms during the whole cooking process. The researcher has thought of saving the quantity of wood burned for coking by designing a new stove which would function like a charcoal kiln. It was a closed stove which would be automatically closed when the wood changed to charcoal to prevent the oxygen from entering. Then the fire would be put out and only the charcoal remained. The experimental result was that the minimum quantity of wood could be used to cook 10 kilograms of pineapple leaves and the process took 3.5 hours. However it is still difficult to find wood for use as fuel because it is rare and expensive. To solve such problem the researcher has developed and designed a pineapple leaf cooking stove which uses rice hulls as fuel. Rice hulls are easy to find and cheap so it is perfect for use as alternative fuel. In addition the size of the newly developed stove fits is suitable for completely cooking pineapple leaves by using one lot of rice hulls. After boiling 50 kilograms pineapple leaves with the stove powered by rice hulls by adding an amount of 21 kilograms of rice hulls the result was that the boiling time reduced from 4 hours to 1.5 hours. The cost of rice hulls used for each boiling was only 7.50 baht.