จำนวน Repository ( 87 )
การผลิตภาชนะใส่แอลกอฮอล์เจลอุ่นอาหารที่สามารถย่อยสลายได้เองตามธรรมชาติ
Nowadays container of alcohol for warm food is produced from raw material of alloy mixture of tin chromium and manganese. When the container is heated with the flame temperature at 300 c which it is burned about 10 minutes. The container is transformed into trash that it’s difficult to disintegrate for destroying the environment. This reason is that the sawdust is taken for useful and alloy substitute. Manufacturing container from the sawdust on alloy with alcohol gel substitute for warm food the process of forming is essential that mold extrusion and compression mold are designed appropriate to size shape of workpiecesafedurablesuitable work including preparing forming sawdusttest for burningpreparing synchronizationdesign work and selecting material for mold. The result of project revealed that the burning was taken about 26 minutes per piece while metal container had 15 minutes. Furthermore sawdust container was about 73.33 percent and the temperature of combustion higher than metal container about 51.88 percent. Sawdust container costs 2.45 baht per cup and lower than 51.00 percent whereas metal container costs 5 baht per cup. The rate of precipitation into process of biodegradation container from sawdust and water showed that the rate of good biodegradation was depended on precipitation into process of biodegradation.
การเตรียมกระดาษคราฟท์จากผักตบชวา ใบสับปะรด และกาบกล้วย
This research had a main purpose for studying the utilization of water hyacinth as the key component of paper production mixed with the agricultural waste as pineapple leaves and leaf sheath of banana tree. The paper pulps were prepared from 5 g/l NaOH at 90-95oC for 3 hours then bleaching with 5 g/l Hydrogen peroxide at 90-95oC for 30 minutes. The whole pulps were detached improvement with 5g/l Acramine 3187 before paper establishment production. Finally the strength of obtaining papers was consideration and competition to any craft paper type. As the results the appropriate ratio of paper was 70% water hyacinth (stem) 10% pineapple leaves and 20% leaf sheath of banana tree. It had 31.19 kN/m2 for bursting strength tearing strength as 309.17 mN and 0.49 mm thickness. The basis weight was 183±5 g/m2. The achieved paper was equivalent as KI craft paper. It was presented for packaging boxes and other procedures.
ผลของการใช้เปลือกทุเรียนผงทดแทนแป้งข้าวสาลีต่อคุณภาพของแป้งทาร์ต
The objective of this research was to determine effect of substitution wheat flour with durian rind powder at 0 5 10 and 15% on tarts quality. Assessment by physical and chemical properties sensory evaluation. Results showed that increasing of durian rind the texture of the tart dough before baking hardness toughness and cohesiveness increased. After tart dough baked hardness and toughness increased. Both the tart dough before and after baking decreased lightness (L*) and yellowness (b*) increased of redness (a*) and water activity (aw) of baked tart dough has decreased. The durian rind tart contained increased of moisture protein ash and crude fiber. As of fat and carbohydrate are decreased. For sensory evaluation in acceptance color odor taste flavor texture and overall the tester accepted like very much at 15% of substitution durian rind powder with wheat flour.
การศึกษาปริมาณรำข้าวสาลีและกากงาดำในกรวยไอศกรีม
The purpose of studying the ice cream cones and wheat bran and black sesame meal is study to appropriate ratio of wheat bran per black sesame meal in production Ice cream cones. And evaluating the physical quality chemical and microorganisms. And to study the shelf life of ice cream cone. The ice cream cones of wheat bran and black sesame meal appropriate such as the ratio of wheat bran per black sesame meal are 5% and 10% by there is the highest scores on overall. Which the amount of wheat bran and black sesame mean score of the color odor flavor crispness and favor. Overall the differences were statistically significant (p <0.05). From quality analysis was found that the color = 6.83 . 1.46. The color is dark brown. The ice cream cone with a thickness at 0.31 . 0.05 cm Hardness at = 1.36.at the Aw = 0.33 . 0.04. There is moisture content at 1.32 . 0.02%. And not found of 0.15 microorganisms such as yeast and mold. Ice cream cone vacuum packaging and a period is 30 days at room temperature (35.5 . C). The color remained but there is increasing trend of Aw moisture and the growth of microorganisms. For the test of consumer they accept both. By there is the highest scores on color odor flavor crispness and favor. Which the all scores of consumers is in medium.
การศึกษาพฤติกรรมการถ่ายเทความร้อนของจานเบรกด้วยระเบียบวิธีไฟไนต์เอลิเมนต์
Admittedly a disc brake plays an important role in the auto part industry since it concerns directly with safety. Therefore the wide range of disc brake has been designed in order to develop its heat ventilation. There are two physical kinds of brakes: front-vented disc brake and backvented disc brake. As a result such difference affects directly to the heat ventilation which is a vital factor of the brake’s capability. The project team recognizes its importance and tries to create the test to find out the temperature diffusion of the disc brake with the hope to evaluate the coefficient of the heat convection varied by the temperature changing in both kinds of brakes under the forced heat convection in the steady condition. However the steady heat conduction and radiation value will not be counted because it is insignificant. The JASO C406: 2000 Standard is adopted as a guideline in the test. The outcome coefficient of heat conduction will be used in the simulation via the Finite Element Method (FEM) in order to study the temperature diffusion and heat ventilation of both kinds of brakes at each temperature level. Consequently the experimental work reveals then the heat convection coefficients of both kinds are unidirectional. The heat convection coefficient of the front-vented disc brake is 4.40 % in average higher than that of the back-vented disc brake. From the simulation the front-vented disc brake can ventilate the heat better than the back-vented disc brake at 3.02 % in average. It can be summarized that the front-vented disc brake has more temperature difference than the backvented disc brake. Hence the front-vented disc brake likely gets more stress from the temperature than the back-vented disc brake and might be damaged during the operation more than the another type.