This research aims to increasing efficiency in production and eliminate the problem of insufficient production capacity with respect to customer demand for electrical appliance factory by applying the line balancing method. Thus the study then developed two problem-solving approaches. The first approach is a method by which a firm applies the line balancing concept and ECRS technique (Eliminate Combine Rearrange and Simplify). On the contrary the second approach is required an investment in testing machine with value of 1000000 baht in order to support sufficient production capacity to meet customer demand. Also ECRS method is used to accomplish this process. Based on the results the first approach provided the production line efficiency improvement representing of 82.59% and reduced the labor cost of 277220 baht per year. However the loss of commercial opportunity has remained the same of 6336000 baht per year. Accordingly the second approach demonstrated of 92.11% of the production line efficiency improvement and the labor cost reduction valued of 277220 baht per year. As we expected the second approach satisfied production efficiency by eliminating the loss of commercial opportunity with value of 6336000 baht per year delivering a return of investment within two months.

This project were study to Nakhon Si Thammarat embossed pattern to conserve the usage of endure Thai fabric with Jacquard. The purpose of this project were to develop Nakhon Si Thammarat embossed pattern by computer program and to be woven with Jacquard ( JACQUARD) . The extent were the pattern from a woven traditional fabric with loom from Ban Noen Thammang Arts & Crafts Center at Ban Noen Thammang Mae Chao Yuhau Sub district Chian Yai District Nakhon Si Thammarat Province. This project was the qualitative. It used blend method to achieve the objective the study of traditional pattern process and the pattern was designed by a computer program (STITCH) to be able to applied to the Jacquard in order to preserve and promote the innovative usage Thai pattern design that enhanced the ability to weave faster more convenient and using only one weaver that faster than weaving with loom that had many instruction many persons and a lot of time when wove it. This would yield less. Weaving with Jacquard (JACQUARD) was woven to be more productive to be market more to reach more consumers which was conserved to be sustainable for Thai fabric. The result of study Nakhon Si Thammarat embossed pattern and Jacquard process (JACQUARD) to study Mimusops pattern 2 layers cone shaped and brought the design to come down the computer ( STITCH) by studying the patterns and characteristics of the Nakhon Si Thammarat embossed pattern to out graphs and tables were used to make cards. Then brought it to use with Jacquard. It could reduce problems in various areas that were 1. Reduced manual labour in raising heddle that took 3 people held it including weaver while Jacquard (JACQUARD) rose by heddle only one weaver. 2. Reduced time to decrease. 3. Reduce the weaving process with Jacquard ( JACQUARD) . It could be woven continuously and woven patterns could change quickly without raising the heddle or collecting again. The patterns could still preserve the original design to create the Nakhon Si Thammarat embossed pattern were beautifuleye-catching and outstanding including the Nakhon Si Thammarat embossed pattern design by computer program (STITCH) to 120 heddles and could design complex easier. All things that mentioned to help the weavers to more earn income. Consumers increasingly recognized that were the dissemination of Nakhon Si Thammarat embossed pattern to have more use and considered a sustainable conservation of this fabric.

A disc brake is one of important auto parts for motorbike cycle industry which effected directly to life safety. As the result this project aims to test the performance of the disc brake in order to study the physical disc brake that effects to braking distance and to be an alternative for testing the brake disc. The braking performance tester was designed and created in the single dynamometer which was not over 10 Hp and the 17of inertia .70 kg. m. Referring to testing state of JASO T204:2001 standard this tester focused on testing the 3 different types of disc brake i.e. normal type grooving type and perforated type. The tested temperature was at normal state of the brake disc temperature (60° C - 80° C) and at high state (more than 100° C). The braking force from 9.81 N to 34.33 N at master cylinder was tested. moments was not over 92 The result revealed that at normal temperature the braking performance of the three disc brakes (normal type grooving type and perforated type) was at 17.76 21.80 and 19.00 per 1 mrespectively. However the brake performance at high temperature was at 14.41 18.06 and 18.93 per 1 m. This meant that the most efficient disc brake at normal temperature was grooving type of disc brake which was 22.74% different from normal type of disc brake. Nevertheless; the perforated type of disc brake was the most performance disc brake at high temperature which was different from normal type of disc brake at 25.32% 2 of contact surface areas 2 of contact surface areas respectively2m/s2m/s

The objectives of this research are to develop the welding process of copper tube for refrigeration in air conditioner by using rotation brazing table. The key design is the use of rotary head for nitrogen and rotary head for cooling water in assembly jig nitrogen discharge to prevent the internal welding soot to remove the soot that may occur during welding from piping system and to cool down the profile quickly. The result of water cooling to prevent that damage due to the heat of welding. The result from designing and creating of rotation brazing table to substitute stationary welding found that there is the reduction of machine cost by 11.61% or 46000 Baht/machine reduction of usage space 8.75 square meters or 74375 Baht increase of productivity by 93.48% reduction of nitrogen consumption by 98.20% or 2593 Baht/month reduction of support tool in production 75000 Baht per one rotation brazing table reduction of tiredness from working by 30.24% or equal to 137 manual works per day and reduction of usage of consumable material that can cause of greenhouse gas in form of trash such as cloth glove 1.40 KgCo2 per year leather glove 12.5216 KgCo2 per year nitrogen gas 0.1784 TonCo2 per year and water 0.54 KgCo2 per year. All of these can support the competition and dynamic change of industrial air conditioner in the future sustainably.

Devlopment of Screen Printign Devices Prototypes for Textile lndustry was a research project which it was established to solve the practical learning of the faculty of industrial textile and fashhion desing students at Rajamangala University of Technology Phra Nakhon. This set had 3 important machines such as a self assembly aluminum block screen an automatic aluminum screen could saved the saved the screen fabric1.76 m2 reduced the chemical usageand waste minimization in the process.The practical time reduced from 16 minutes to 1 minute using the automatic aluminum screen coating. The efficiency time was 97.81. The 400 gram emulsion consumed obtained the thin film layer on the screen fabricand evenness.The sharpen pattern displayed when the exposed time was 3minutes.Moreoverthe drying and fixation machine was completely for natural fiber and synthetic fibers at 80-180 C. Therefore the Screen Printing Devices Prototypes was effectively used in textile industrialdispose of the practical learning problemraw material savingand waste minimization adjacent to clean technology process.The prototype set was produced by house equipmentsand extended for textile industrial.