จำนวน Repository ( 41 )
การเตรียมผ้าไม่ทอจากใบอ้อย
This research was concerned with the fiber separation and non-woven preparation form sugar canes leaves. The separation process was carried out by chemical pulping method at 100 degree Celsius. In order to study the suitable condition for separation process the concentration of sodium hydroxide ranging from 0 -20 grams per liter and boiling time 15 30 45 60 75 90 105 and 120 minutes were performed. Web formation process was performed by wet laid method and polyvinyl alcohol was selected as binder in web bonding process. in order to study the suitable amount of binder in bonding process concentration of polyvinyl alcohol ranging from 1 2 4 6 8 and 10 % w/v coated on web surface and cured at 120 degree Celsius. Bursting strength as well as physical properties evaluation of non-woven fabrics was performed. For antimicrobial finishing process was performed by spray method and pad method. The finishing result was evaluated by MTCC test method 147-1998 (Qualitative) and 100 -1999 (Quantitative) The result was found that appropriate condition for fiber separation was recommended as follows: the amount of sodium hydroxide of 10 grams per liter and boiling time 60 minutes. The suitable amount of polyvinyl alcohol for web bonding process was 2 % w/v. Bursting strength of non-woven fabric was 53 kN/m 3 and padding method was a suitable method for antimicrobial finishing (antimicrobial area 0.3 millimeters )
A Study and Development of Solar Hybrid Energy Oven
The objective of this paper is to design and develope solar hybrid oven for common usage heat energy between sunshine and heater. The technology improvement of integrated solar dryer cabinet aims to prove that the solar energy for thermal purpose is the most useful alternative device for energy conservation which helps environment and pollution protection. It can also be an effective equipment for industrial drying process of herbal plants and products in term of dehydration humidity reduction and fungus termination. The use of solar dryer cabinet can serve the high demand in the market of Thai herbal products which some of which are also used as detoxification. Solar Hybrid Energy Oven choose between infrared heater and DC heater. The outer structure of solar drying cabinet is made of aluminum sheet of 60 cm. wide 60 cm. long and 80 cm. high. The inner box is coated with black paint. The experimental process and data collection of solar radiation was carried out for 15 days. The humidity value measurement was conducted during a 5-hour drying process with data collection at every 20 minutes. The herbal plants used in the experiment are lemongrass pandanus citrus hystrix leaf red paprika and gotu kola. The data collection hours are from 10.00 am to 15.00 pm and the finding shows that the highest temperature in the cabinet reaches 99 degree Celsius . The fastest dehydrated and dried plant is pandanus whose initial humidity value is 589.6 % dry basis and humidity mean after drying process is 3.4 % dry basis. Lemongrass contains the second highest initial humidity value which is 566.6 % and humidity mean after drying process is 3.3 % dry basis .This indication confirms that the technology of solar energy combined with infrared heater can most effectively generate the heat in the cabinet to serve the drying process.
A Study and Development of Solar Hybrid Hybrid Energy Oven
The objective of paper is to design and develop solar hybrid for common usage heat energy between sunshine and heater The technology improvement of integrated solar dryer cabinet aims to prove that the solar energy for thermal purpose is most useful alternative device for energy conservation which helps environment and pollution protection. It can also be an effective equipment for industrial drying process of herbal plants and products in term of dehydration humidity reduction and fungus termination. The use of solar dryer cabinet can serve the high demand in the market of Thai herbal products which some of which are also used as detoxification. Solar Hybrid Energy Oven choose between infrared heater and DC heater. The outer structure of solar drying cabinet is made of aluminum sheet of 60 cm. wide 60 cm. long and 80 cm. high. The inner box is coated with black paint. The experimental process and data collection of solar radiation was carried out for 15 days. The humidity value measurement was conducted during a 5-hour drying process with data collection at every 20 minutes. The herbal plants used in the experiment are lemongrass pandanus citrus hystrix leaf red paprika and gotu kola. The data collection hours are from 10.00 am to 15.00 pm and the finding shoes that the highest temperature in the cabinet reaches 99 degree Celsius. The fastest dehydrated and dried process is pandanus whose initial humidity value is 589.6 % dry basis and humidity mean after drying process is 3.4 % dry basis. Lemongrass contains the second highest initial humidity value which is 566.6 % and humidity mean after drying process is 3.3 % dry basis. This indication confirms that the technology of solar energy combined with infrared heater cal most effectively generate the heat in the cabinet to serve the drying process.
การเปรียบเทียบภาระขาดของรอยเชื่อมผ้าทอทางสถาปัตยกรรมจากการเชื่อมลมร้อนและเหนี่ยวนำ
Architectural fabrics were continuously developed on their unique performance. Architects and Engineers designed them for the application of important buildings around the world despite the symptom that Architectural fabric sizes from manufactures are smaller than the application sizes. Recently although the well-known method used to weld Architectural fabrics to enlarge their size is the high frequency welding there were some application issues. To mitigate those issues the researcher created the hot air welding to replace the high frequency welding in consideration on the failing loads of welded seams which are variable factors of the failing loads to indicate the weld strength and it is crucial for the Architectural fabric application. This research presents the comparison of failing load of weld seams between the hot air welding and high frequency welding by the test of Taguchis Orthogonal arrays L25 method. The test results demonstrated that Architectural fabrics welded by the hot air welding has the highest failing loads of wrap equal to 95.38 kN/m and the highest failing loads of weft at 86.17 kN/m. Conversely Architectural fabrics welded by the high frequency welding has the highest failing loads of wrap equal to 101.37 kN/m and the highest failing loads of weft at 97.78 kN/m. Based on a forementioned results there is no significant difference from both welding methods and thus concluded that the hot air welding could be used to replace the high frequency welding method.
การพัฒนาผลิตภัณฑ์ของตกแต่งบ้านจากวัสดุรากเตยปาหนัน แรงบันดาลใจจากลวดลายผ้าทอเกาะยอ
The purposes of this research were to study the properties of Tei Panan Root suitable for the development of home decor products inspired by Koh Yo woven fabric patterns to conduct the development of home decor from Tei Panan material and to study the satisfaction of experts with home decoration products from Tei Panan root material inspired by the Koh Yo woven fabric patterns. The research began by studying the properties of Tei Panan root material and developing Tei Panan root materials. The most suitable formula was selected. The properties of Tei Panan root material were evaluated to select the most suitable pattern. The researcher designed the home decoration from Tei Panan material inspired by Koh Yo woven fabric pattern dividing to 3 types of lamps including hanging lamps wall lamps and table lamps (3 forms for each type). Five experts were appointed to select the most suitable form for each type. Then home decoration products were created from Tei Panan root material inspired by Koh Yo woven fabric pattern by assigning 10 experts consisting of 5 textile experts and 5 design experts and the product satisfaction was inquired about. The results showed that in the development of properties of Tei Panan root material the most suitable formula was formula 3 and the most suitable pattern was Su Ban Ni Ka pattern (n= 3 60%). The result of the development of home decoration from Panan material inspired by Koh Yo woven fabric pattern classifying hanging lamp form 3 (n=4 80%) wall lamp form 2 (n= 3 60%)and table lamp form 3 (n=3 60%). All 10 experts were satisfied with the home decoration products from Tei Panan root material inspired by Koh Yo woven fabric pattern with highest level in all aspects of satisfaction such as materials design product usability and overall satisfaction with a mean score of 4.56.