The fault in a power distribution system disturbs the power dispatch under normal conditions therefore decreases the quality of the electric power. The single line to ground fault is an asymmetric fault that may have a high percentage chance to happen. The kind of fault changes power and voltage dramatically. The size of the phase voltage decreases which affect the economic damage of the system. This paper presents an analysis of grounding systems to reduce voltage drop in a power distribution system by using the technical analysis system in case of one phase to ground fault. The objective is to minimize voltage drop for users using the simulation with single line to ground fault in distribution system voltage level at 22 kV PEA’s test system. The simulation utilizes the EMTDC-PSCAD program. The results show that the grounding method can reduce the voltage drop and reduce the damage of the economic system

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.

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 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.

Nutritive values moringa leaves meal were evaluated and compared with luecaena leaves meal which has similar chemical compositions in order to use moringa leaves meal as broiler chicken feed ingredient. Thirty 3-week old chickens were divided into 3 groups of 10 birds (5 males 5 females) each. Each chicken was randomly fed with experimental diet that was composed with cassava powder (for endogenous nitrogen analysis) powdered moringa Leaves meal and powdered luecaena Leaves meal. The chickens were raised individually in metabolic cage where feed and water were provided ad libitum and both feed intake and feces weight were recorded. Experimental diets and excreta were sampled and subjected to proximate analysis for chemical compositions and gross energy. T-test comparison was used for statistical analysis. Results indicated that nutrients utilization of moringa Leaves meal (utilization percentage of dry matter organic matter protein crude fiber nitrogen free extract energy and metabolizable energy) were higher than those of luecaena Leaves meal (P<0.01). However there was no statistical difference (P>0.05) between moringa Leaves meal and luecaena Leaves meal in utilization percentage of ether extract. Moreover usable energy of moringa leaves meal was also higher than that of luecaena leaves meal (p<0.01). Therefore moringa Leaves meal could be one of potential feedstuffs for use in broiler diet production.