Industry Technology Lampang Rajabhat University <p><strong>ISSN 1906-5337 (Print)</strong><br><strong>ISSN 2672-9539 (Online)</strong></p> <p>วารสารวิชาการ คณะเทคโนโลยีอุตสาหกรรม มหาวิทยาลัยราชภัฏ ลำปางจัดทำขึ้น เพื่อเผยแพร่และประชาสัมพันธ์ผลงานวิชาการ ด้าน วิทยาศาสตร์และเทคโนโลยีอุตสาหกรรม โดยทำการตีพิมพ์บทความวิจัย และบทความวิชาการทั่วไป สิ่งประดิษฐ์และนวัตกรรม สาขาวิชาเทคโนโลยี วิศวกรรมศาสตร์ และสหวิทยาการด้านวิทยาศาสตร์และเทคโนโลยี</p> en-US Industry Technology Lampang Rajabhat University 1906-5337 The Work Study and Standard Time for Processing Dragon Jars: Case Study of a Dragon Jar Factory <p>The purpose of this research was to investigate the work study and standard time for producing dragon jars in the made by order production process. A direct time study was carried out in conjunction with an expert and using the Westinghouse Performance Assessment Scale. Optimal counts were calculated using the Maytag table with 95% confidence level and 5% accuracy. It was found that the number of time intervals suitable for 6 cycles was taken as the representative mean time calculated with the time allowance for each sub-activity. It was found that the standard time used in the production process at the production station was as follows: clay preparation station- 12.34 minutes; forming station- 24.33 minutes; decoration station- 20.28 minutes; glazing station- 8.43 minutes; and kiln station- 5.31 minutes. Standard time studies can be considered as important in providing relevant background data, in relation to the control of working hours, cost calculation and production planning. Moreover, they can be used as the guidelines for increasing productivity in the pottery industry.</p> Thawatchai Prayatwong Chertchai Thurapaeng Tongtang Tonglim Choosak Pornsing Copyright (c) 2022 Industry Technology Lampang Rajabhat University 2022-06-28 2022-06-28 15 1 1 12 Proximate Analysis Based Higher Heating Value Correlation of Biomass and Biochar from Cacao Husk and Corncob <p>This research article presents a selection routine for the higher heating value prediction correlations based on the proximate composition data. Thirty-one correlations from two different types - proximate analysis-based correlations and ultimate analysis -based correlations - were computed and validated against the experimental data from two Chiang Rai regional crop residue biomasses, including cacao husk and corncob, as well as their torrefied biochar. The result showed that the correlation PC15 was the most accurate in our study with the mean absolute error MAE = 4.69%.</p> Nongnoot Srilek Pran Makarkard Wipawan Nunto Pornhathai Putthawan Sitthikrit Leckpool Copyright (c) 2022 Industry Technology Lampang Rajabhat University 2022-06-28 2022-06-28 15 1 13 25 Value Chain Comparison of Parchment Coffee Production Process: A Case Study of Doi Chang Village Community Enterprise <p>The objective of this research was to compare the value and return on investment of the wet and dry processes in the production of parchment coffee by studying the operating costs, investment assets, and production capacity. Data was collected data from operations and interviews with farmers and the community enterprise who produce parchment coffee in Doi Chang Village, Mae Suai, Chaing Rai province. The value chain analysis of the production found that the wet process and dry process produce parchment coffee with values of 47 and 67 baht per kilogram respectively. The wet process investment of 5.26 million baht resulted in a production capacity of 14,400 kilograms of parchment coffee per season, whilst the dry process investment of 1.60 million baht resulted in a production capacity of 3,600 kilograms <br />of parchment coffee per season. The return on investment by defining a project life <br />of 10 years found the wet production process has an internal rate of return of 16.4% with a payback period of 6 years and 1 month, while the dry production process has an internal rate of 17.7% with a payback period of 5 years and 10 months. The wet process has lower investment and slower payback period, but suitable for production with large quantity of raw materials, whilst the dry process is suitable for production with less raw material quantity and limitation of investment budget.</p> Prawet Anan-ue Seksan Winyangkul Nakorn Chaiwongsakda Wuttichai Tiamsiri Copyright (c) 2022 Industry Technology Lampang Rajabhat University 2022-06-28 2022-06-28 15 1 26 36 Design and Development of Spatial Research Data Center for Uttaradit Rajabhat University <p>The purposes of this study were to design and develop a Spatial Research Data Center for Uttaradit Rajabhat University. The study used the information system of data center management and reused the database to support the work of academics and spatial officials to create a data center for Uttaradit Province.</p> <p> The results show that the development of the Spatial Research Data Center systems using Single Sign On technology for creating account centers can be used for data connection by the Web Service via REST design. The data center consists of 6 modules: Account Management; Data Connection Management; Web Services Management; System Log Management; Information Management; and Data Management for Academic and Local Applications. Users can be divided into 4 groups- Administrators; Academic; Government; and Community. The system result was successful at the highest level. The program can be used in every module with stable processing. The best function is the linking of the member system. The function to be improved concerns importing data from client applications due to the variety of applications data. The results of the implementation achieved a high level of satisfaction. The search system needs to be improved because the client application is within direct connection to the database system meaning it is limited in searching for all details.</p> Phanuwat Khanja Copyright (c) 2022 Industry Technology Lampang Rajabhat University 2022-06-28 2022-06-28 15 1 37 49 Study on Properties of Clayed Soil from Sediment Trapping Sump of Mae Moh Mine for Use in Ceramic Works <p>This research aimed to analyze the properties of clayed soil from the sediment trapping sump of Mae Moh mine, Lampang province for use in ceramics production. The soil was sampled from the sump and cleaned by washing and removing the impurities. The clayed soil was then analyzed for chemical and mineral compositions using X-ray fluorescence and X-ray diffraction instruments. The main compositions were silica, alumina, and iron oxide in the forms of quartz, muscovite, kaolinite, and hematite. The clay soil had high plasticity because it contained more than 67% of fine particles. After firing at temperatures ranging from 1000-1200 <sup>o </sup>C, it was found that the clay body was sintered well at 1100 <sup>o </sup>C. The lost weight was 9.70% and the shrinkage value was 4.54%. It had porosity of 0.27%, water absorption of 1.40%, and a reddish-brown color after firing. The strength was measured with a bending strength value of 13.38 MPa. It was found that the clayed soil was suitable for hand molding or jiggering. The resulting ceramics had properties like terracotta. Therefore, it is possible to use the clayed soil, a waste product from the sediment trapping sump in the Mae Moh mine, in the ceramic industry.</p> sucheewan inthung Pongchana Chutima Anucha Wannagon Copyright (c) 2022 Industry Technology Lampang Rajabhat University 2022-06-28 2022-06-28 15 1 50 62