จำนวน Repository ( 2 )

การพัฒนากระบวนการควบคุมชิ้นงานระหว่างกระบวนการผลิตในโรงงานอุตสาหกรรมฟอกย้อมและตกแต่งผ้าผืนด้วยการประยุกต์ใช้ระบบบาร์โค้ด
การพัฒนากระบวนการควบคุมชิ้นงานระหว่างกระบวนการผลิตในโรงงานอุตสาหกรรมฟอกย้อมและตกแต่งผ้าผืนด้วยการประยุกต์ใช้ระบบบาร์โค้ด

The objective of this research is to develop a technology management system for industrial Fabric Pretreatment Dyeing and Finishing factory to resolve existing problems caused by manual input. Firstly this research was performed to study the current work-in processes data. After that these data were analyzedranked and grouped for designing and developing a customized oracle database by implementing SQL on a UNIX server. Finally the new system was integrated barcode technology for connection to facilitate works. Before the renovation to input data by an employees it makes to delay time 1440 minutes from actual manufacturing data. The result represent at 260.67 unit/month as well as newly application of barcode technology. According to this system application it has been found that the manufacturing data in production process are real-time monitored. The result of the research can be increase at 94.42 unit/month as well as reduce expenses on documents above 10000 Bath/month. In addition the operator could also be reduce from 4 to 0. Including enhanced with barcode technology can also facilitate communication with customers making business competitive sustainable future.

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การปรับสภาพขุยมะพร้าวเพื่อผลิตแก๊สชีวภาพโดยกระบวนการหมักแบบไม่ใช้ออกซิเจนร่วมกับมูลวัว
การปรับสภาพขุยมะพร้าวเพื่อผลิตแก๊สชีวภาพโดยกระบวนการหมักแบบไม่ใช้ออกซิเจนร่วมกับมูลวัว

The optimal pretreatment condition of coconut husk by physicochemical methods for biogas production was investigated. The coconut husk was dried and ground into powder (~0.1 nm) and was then determined for chemical contents such as cellulose hemi-cellulose and lignin respectively. The chemical contents of cellulose hemi-cellulose and lignin were 35.67±2.02 7.41±0.69 and 40.82±0.62 w/w respectively. After pretreatment with 4 different methods the results showed that the pretreatment of sodium hydroxide 30 % (w/w) gave the highest chemical contents of cellulose hemi-cellulose and lignin with 43.30±0.03 33.69±7.48 and 27.36±0.03 w/w respectively. As for the biogas production the result showed that the ratio of coconut husk to cow dung of 1:4 with C:N ratio of 23:1 gave the highest cumulative biogas of 442.6 ml for 30 days. Methane and carbon dioxide contents were 46.1 and 23.1 %. Moreover the removal percentages of the total solids (TS) volatile solid (VS) suspended solids (SS) and COD were 69.3 32.5 50.0 and 58.4 % respectively. The coconut husk could be used as an alternative material for the application of biogas production with cow dung in the near future.

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