จำนวน Repository ( 3447 )
Automated production of traditional liquor by cooling method
An automated production of traditional liquor by cooling method is presented in this paper. Thai traditional liquor is a product of One Tombon One Product (OTOP) and it was refined using traditional method. That is boil the fermented rice that obtained from fermented sticky rice with leavening and then condense the steam in coolant tank until receive the 35 degree distilled liquor. The entire production process is mainly base on worker’s experience which cause the uncertainty of production time and the alcohol percentage is not constant. In this paper we have developed the automatic distillation by using microcontroller to control the production process. The digital thermometer and limit switch are used to check temperature and water level (maximum-minimum) inside coolant tank respectively. And temperature in the coolant tank is controlled to vary slightly between 38-40 degrees. When the temperature inside the coolant tank is higher than a certain threshold the microprocessor instructs to solenoid valve and water pump to drain hot water and to pump cold water into tank respectively. So the temperature inside coolant tank is constant. An automated production of traditional liquor by cooling method was fabricated and experimented with community at Banlang Mueang Lampang. The results show that the proposed method has the volume of liquor rather than the original method. In 100 minutes the proposed method has distilled liquor 10 liters while the original method has 8.4 liters. And alcohol percentage is constant at 35 degrees.
Development of concrete boat by using lightweight concrete
The objective of this study aims to develop a concrete boat by using lightweight concrete. The use of granular foam replaced the aggregate in various quantities to reduce the weight of boat. The replacement ratios of aggregate by the granular foam were 0 25 50 75 and 100% by volume of aggregate. The test results of compressive strength tensile strength modulus of rupture and unit weight of concrete were used to find out the appropriate mixture for producing the concrete boat. The results indicated that the appropriate mixture for producing concrete boat was the replacement of aggregate by granular foam at 100% which had the compressive strength at 28 days of 50.59 kg/cm2 and the unit weight was 949.71 kg/m3. The weight of lightweight concrete was lighter than the normal concrete about 57%. The prototype of lightweight concrete boat which had 1.04 m wide 2.20 m long and 0.38 m height had about 50 kg of weight. The maximum weight capacity of the boat was 240 kg. The cost of a lightweight concrete boat was about 650 baht
Dry reforming of methane reaction for hydrogen and syngas production using cobalt catalysts and nickel-cobalt bimetallic catalysts
The cobalt catalysts (cobalt content by weight: 7% 10% and 15%) and cobalt-nickel bimetallic catalysts (cobalt-nickel content by weight: 3.5%-3.5% 5%-5% and 7%-7%) were studied in dry reforming of methane for hydrogen and syngas production. All catalysts were synthesized by the wetness impregnation method. The dry reforming of methane was carried out at 700oC atmosphere pressure using a mixture; CH4 and CO2 in ratio 1:1. The result showed that the good activity and stability depend on metal content in catalysts and the combined 2 metals as bimetallic catalysts. The optimum amounts of catalysts are 10wt% Co for mono-metallic catalysts 75%CH4 and 75%CO2 conversion and 7wt% Ni-7wt% Co for bimetallic catalysts 87%CH4 and 89%CO2 conversion.
Biomass potential of 56 accessions of leucaena as animal and biofuel feedstocks
Biomass yield between 56 accessions of leucaena were observed at Suwanvajokkasikit Field Crops Research Station Nakhonratchasima province. Randomized block design was used with 3 replications and 56 accessions as treatments. Leucaena was harvested at 2 years of age. Plant length wood yield branch yield and leaf yield were collected. Averaged plant length was in range of 6.84-11.87 meters with KU19 was highest in length. Five accessions that produced more wood yield were KU15 KU38 KU1 KU19 and KU10. Yield of these accessions were 24.07 21.96 16.71 15.36 and 14.95 t/rai with ash content at 1.43 1.04 1.76 3.66 and 1.34 percent respectively while native leucaena (KU20) had the lowest yield (0.91 t/rai). Branch yield among the accessions; KU1 KU10 KU38 KU 15 and KU19 had the greatest branch yield averaged 3.04 2.76 1.62 1.42 and 1.38 t/rai respectively. While top five in leaf yields were in KU15 KU56 KU45 KU39 and KU19 at 1.12 1.11 0.88 0.87 and 0.86 t/rai respectively.
The dominant feature of khao wong glutinous rice kalasin province for geographical indications
The objective of this research was to study the dominant feature of Khao Wong glutinous rice Kalasin province for geographical indications. The effect of three cultivated areas of glutinous rice variety (RD6) consisting of Khao Wong Huai Mek and Kong Chai districts was investigated along with their physicochemical textural properties and thermal properties. For the effect of different cultivated areas on glutinous rice properties the significant effect of different cultivated areas on chemical compounds viscosity and textural properties was observed (p?0.05). There was no significant effect of cultivated areas on amylose content (p>0.05). The highest protein and ash contents and the lowest setback hardness and chewiness values were found in the sample cultivated in Khao Wong district area. The aroma compounds analysis of rice samples revealed that methanecarboxylic acid was observed in glutinous rice cultivated in all studied areas. Whereas the highest content of 122-Trimethylcyclopropylamine was found in the sample cultivated at Khao Wong and Kong Chai districts. In addition the highest content of 2-cis-9-octadecenyloxyethanol was observed in glutinous rice cultivated at Huai Mek district.