Department of drainage and sewerage (DDS) has realised in the flooding in Bangkok. Despite these issues the flood control centre has been established for water level monitoring as well as solving its issue in case of the water level in canal over-leveled using supervisory control and data acquisition (SCADA) technology in order to control the pumping station located throughout Bangkok. This regulation system is mainly categorised into two systems: Field Server and Canal Regulation. Consequently this article presents on Novel Water Level Sensing for the Canals in Bangkok with the advantage and disadvantage analysis in the informative-acquiring pattern from instruments together with the limitations of operation for improving measurement more precise reliable and most efficient.

Soybeans are a crop that can be utilized especially in terms of food rich in protein and fat as the human and animal needs. For using the soybeans must be processed to obtain the desired physical characteristics. The process is mostly a grinding and extraction. However these two processes are completely different applications. This research aims to study and create the soybeans grinder machine become to flour the quantity of grinding the variable that affect to the amount of grinding and economic analysis for guiding to investment. The researchers have designed the grinder unit by the coarse grinding and mill grinding unit. For the coarse grinding unit is similar to a disc and in case of grinding mill will be used the roller set. Base on the power train of bolt grinding unit the electric motor with 2 HP. at 1450 RPM are used for the experiment. For the grinding mil process the rough material is feed into grinding mil chamber for reduce the size of material become to the flour. The results of the research found that the suitable speed of the coarse grinding and mill grinding unit was 480 and 725 RPM respectively. In case of these relationships the average quantity of grinding for the coarse grinding and mill grinding unit was 271.8 and 150 kglhr respectively. Furthermore the results of experiment discover the materials that are not accounted of the coarse grinding for 13.9 percent. For the economic analysis for guiding to investment found that the breakeven point and pay-back period was 110378 kg and 0.0067 year respectively.

Nowadays the Thailand automotive industry widely grows. Brakepad is one of the automotive productions that role to automotive industry because it is the most critical security parts. Consequently testing products for quality are extremely requested. However the equipment and function tests are not enough and are also high cost so it cannot supports to the automotive industry development. In this work the initiation and design of frictional test were carried out. The testing procedure is referred to The special test jigs for friction measurements JIS K7125[5] and Clutch facings for automobiles JIS D4311[6].A study of the frictional test emphasize on the static friction(l-ls) and kinetic friction(l-lk) in different condition. There are 3 specimens of brake pad supported by the industry company. These specimens were test and compared between the pin on disks result and the friction testings result. The two-sided results from the analysis correspond but the pin on disks friction coefficient is more than the friction testings friction coefficient by 19.56%. Moreover the coefficient of friction tends to follow the temperature. Besides the static friction(l-ls) is likely more than kinetic friction(l-lk) and will be high difference in high pressure condition.

This research is to study the approach for producing the hard materials part by using tungsten carbide powder. The tungsten carbide powder derived from Tungsten scraps recycle processes which are Insert tools scraps the waste of metal removal process or derived from usage of machining on machine tools which are the production of metal powder by recovering cemented carbide to tungsten carbide powder and bring it to recycle. The first experiment of this research starts with the production of pure tungsten carbide powder in order to produce the hard metal part how to possibly produce the durable part or hard materials. Preparing tungsten carbide powder which pulverized and mixed with Cobalt co-binder less than 17% so that molding with the pressure 300 Mpa and sintering at 1430 degree Celsius to the cemented carbide part in Insert tools type rectangle SNMG standard 120408 for turning. The result is found that the Insert tools have hardness about 1385 HV and density 13.45 g/cm3 and then they are tested to machine specimens in AISI 1045 type. The developed Insert tools can be machining metal removal them as well as the imported Insert tools. It is concluded that the production of Insert tools by recycling of tungsten carbide is qualified as the imported Insert tools. In addition it is the new developed research in Thailand to be the approach for domestic cutting tools product instead of the imported cutting tools.

Now a day the mostly air condition are use vapor compression refrigeration system in which R-22 refrigerant is used as a working substance. From the results of study it found that the quantity of water vapor or moisture in the air is condensed with in the fan coil unit while through out the evaporator. The fluid after condense is called condensed water. By this process the quantity of condensed water is increases when the air condition is used in the long time. To increase the utility the condensed water is recovered for the heart reduction in the finned-tube condenser. The experiment is consist of two conditions by using the air and condensed water to heart reduction. But in case of condensed watcr the pressure openation is controlled at 280 and 260 Psig respectively. The results of efficicncy ratio (EER) is 39675 Btu/hr 3.01 and 10.3 Btu/hr Watt respectively with the air is used At the pressure operation 280 Psig refrigeration effect (C.O.P) and (EER) is 44212 Btu/hr 3.38 and 11.5 Btu/hr. Watt respectivecly and 49856 Btu/hr 3.99 and 13.6 Btu/hr Watt at pressure operation 260 Psig. Furthermore the capacity of condenser is increases to 11.43% and 25.6% and also the refrigerant efficient is increases to 12.43 % and 32.43% at the pressure operation 280 and 260 Psig. Thus the pararneter of energy efficiency ratio depends on the capacity of condenser working substance temperature (pressure operation) and air surrounding tcmperature.