Rajamangala University of Technology Phra Nakhon
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การศึกษาสมรรถนะของโรงไฟฟ้าไตรแลทเทอร์รัล ซับคริติคัล โออาร์ซี และซุปเปอร์คริติคัล โออาร์ซี โดยใช้แหล่งความร้อนใต้พิภพเป็นแหล่งพลังงาน
Get PDFวารสารวิชาการและวิจัย มทร.พระนคร, ปีที่ 14, ฉบับที่ 1 (ม.ค.-มิ.ย. 2563), หน้า 177-192This study investigates three different types of power plant include a trilateral cycle (TLC), subcritical organic Rankine cycle (ORC), and supercritical ORC power plant driven by geothermal heat source with mass flow rate 1 kg/s and temperature of 100๐C, 110๐C and 120๐C. with 27 substances were examined as the working fluid of the power plant. While the net power output of 4.78 kW and 7.74 kW is obtained from the subcritical ORC with RC318 as its working fluid when the heat source temperature are at 100๐C and 110๐C, respectively. Meanwhile, the net power output of 11.85 kW is obtained from the subcritical ORC with R227ea as its working fluid when the heat source temperature is at 120๐C. The net power output of 5.64 kW and 9.16 kW are obtained from the supercritical ORC with R218 as its working fluid when the heat source temperature are at 100๐C and 110๐C, respectively. Meanwhile, the net power output of 12.88 kW is obtained from the supercritical ORC with R143a as its working fluid when the heat source temperature is at 120๐C. Furthermore, the net power output of 7.96 kW, 12.27 kW, and 17.38 kW are obtained from the TLC plant with heptane as its working fluid when the heat source temperature are at 100๐C, 110๐C, and 120๐C, respectively.Rajamangala University of Technology Phra Nakho
การพัฒนาผลิตภัณฑ์เปลือกเสาวรสแช่อิ่มอบแห้ง
Get PDFวิทยานิพนธ์ (คศ.ม.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562The development product of dried pickled passion fruit peel aimed to study appropriate production process of dried pickled passion fruit peel, to study the preservation, and examine the acceptance from the customers. The result showed that the appropriate way to produce dried pickled passion fruit peel was the 30%, 40%, and 50% of intensity in syrup. With the intensity of syrup started from 30%, the appearance, color, and smell of final product got highest average score. Therefore, the production should be slow pickled with 30% of syrup intensity. In terms of preservation, there was no microorganism over Thai industrial standard institute of fruits and vegetables 161/2015. Finally, most of the customers accepted this productRajamangala University of Technology Phra Nakho
ศึกษาแนวทางการออกแบบผลิตภัณฑ์ จากวัสดุเหลือใช้ทางการเกษตร กลุ่มแม่บ้านทอผ้าด้วยมือชุมชนเปรมฤทัย จังหวัดกรุงเทพมหานคร
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562This research is Study the product design guidelines from agricultural waste materials. Weaving Housewife Group Premruethai Community Bangkok And in order to use waste materials to develop to add value With the following steps.
(1) Surveying types, amount of agricultural waste materials. (2) Study the physical structure and chemical properties of plant fibers. (3) Study the methods of preparing suitable fibers for textile materials. (4) Develop and study the suitable mixture ratio of blended fiber yarn. (5) Manufacture of hand-woven fabrics from agricultural waste materials. (6) Design and prototype of products from hand-woven fabrics from fibers, agricultural waste And study from testing methods, comparing the opinions of users / users and evaluators Assessed in the test Bring the results to analyze, find conclusions, analyze and suggest the research results to study. And analyze, find conclusions, study product design guidelines from agricultural waste materials Weaving Housewife Group Premruethai Community Bangkok Expect It was found that different methods of fiber content were obtained. And found that the amount of fiber varies according to the size of the material Analysis results of all chemical composition of fibers Found that the moisture content of 1.82%, Water content 1.00%, ashes 0.7 %, and the fiber has the same amount of 0.97 mg kg , at a normal level that can be found in general plants And meet the standard criteria Physical property test results of fibers The shape according to the cross-section of the fiber Looks like an oval, almost round shape with a noticeable lumen. For the strength, it was found that the fibers had an average elongation at break of 7.54%, the toughness equal to 57.32%, the fiber size was 16.45 deniers and the strength was 26.85 grams.
Yarn production results The most suitable hand-woven (plant fiber and cotton) is 60% plant fiber mixed with 40% cotton. The yarn has an average toughness or strength of 4.86 newtons and the yarn is equal to 2.8 Ne and the result of Testing fabric, peach, mixed fiber fabric with handicraft pattern Found that the weaving of the fabric on the surface of the fabric and / or some grain on the fabric. And there is no hair and grain on the fabric medium Woven fabric has a lack of testing value from the number of abrasion cycles in the range of 1780 - 2100 and the color fastness to washing is in the level of 4-5 (the color has slightly changed And there is no color leakage) By the test streaking of yarn streaks (Plant fiber yarn) has the strength to withstand the pulling force in the range 577.30 - 610.22 newton, the tear strength is in the range 37.26 - 53.89 newton and the size change after washing is in the range - 3.77 to - 6.59 should be developed into various home decoration products such as tableware sets, curtains, shoes, bags etc.
The assessor has the opinion that the use The beauty of various products Satisfied (1) Beauty pattern (2) color (3) Durability (4) Suitable proportion (5) Career promotion to local communities The assessors have the highest level of satisfaction, respectively.Rajamangala University of Technology Phra Nakho
การพัฒนาฐานข้อมูลโรคและยาสมุนไพรหมอพร
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2560This research aimed to collect, classify and process the data of Moh Phon’s diseases and herbal drugs from his medicine scriptures, analyze and design the database with its user interfaces. Then the program of Moh Phon’s diseases and herbal drugs database was developed. After that, the program was tried out by the sample group of 50 students from the third year of the field of English for International Communication, faculty of Liberal Arts, Rajamangala University of Technology, Phra Nakhon. Finally, the students of 15 males and 35 females answered the questionnaires of their satisfaction of using the program.
The results were as follows:
1. The data of Moh Phon’s diseases and herbal drugs consisted of core information as follows: names of diseases, names of herbal medicines, names of herbs which were ingredients of each medicine recipe, the properties of each medicine recipe, and how to prevent some diseases.
2. The questionnaires analysis of students’ satisfaction of using the program of Moh Phon’s diseases and herbal drugs database revealed that the overall arithmetic mean of users’ satisfaction was 75.00. The highest scored item of 87.50 percent was “I think this program is useful”; and the lowest scored item of 66.50 percent was “I think the screen format is interesting”.
Moreover, there were 7 users who showed their positive opinions towards the program which was 14 percent of all the informants.Rajamangala University of Technology Phra Nakor
ระบบสารสนเทศเพื่อส่งเสริมผลิตภัณฑ์วิสาหกิจชุมชนบ้านสามเรือน จ.เพชรบุรี
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562The development of information system to promote the product of Ban Samruen Community Enterprise, Phetchaburi Province has the objective to promote the product of Ban Samruen Community Enterprise. Increase distribution channels for community products. In addition, assess the satisfaction with the information systems to promote community science products. The built system makes operation easier. Data storage and product type classification Organized using PHP5, HTML5, CSS3, SQL and phpMyAdmin to design the database. The results of the satisfaction assessment of 30 website visitors was 4.57, the highest level. And the evaluation of system performance by experts on average 4.60 was at the highest level showing that the information system for promoting products of Ban Samruen Community Enterprise, Phetchaburi can be applied to promote community enterprise products for the future useRajamangala University of Technology Phra Nakor
แนวทางการส่งเสริมและพัฒนาร้านอาหารริมทางในแหล่งท่องเที่ยว ที่เป็นที่นิยมของนักท่องเที่ยวต่างชาติ
Get PDFวิทยานิพนธ์ (คศ.ม.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2563The objective of this study is to first analyze the demographic characteristics, street food selection factors, and street food consumption behavior of foreign tourists, and second to develop certain guidelines for promoting and developing roadside restaurants in attractions that are popular with foreign tourists. The study was conducted from 400 samples, which were obtained by selecting random population to participate in a survey on Development and Improvement of Street Food in Attractions as popularity for Foreign Tourists. The survey data are analyzed using the percentage, arithmetic mean, and standard deviation.
The results of the research are as follows: 1) the majority of the demographics are Asian male who are between 21-30 years that are employed with an annual income of more than 30,000 USD and have at least a bachelor's degree. The biggest factors of choosing street food are from promotion and discount with the average score of 4.60. For the street food consumption behavior part, the taste of the food is the most highly regarded factor with the average score of 4.68. The most remarks that tourist gave on street food was the suggestion on improving its cleanliness and hygiene. 2) Three methods in Promoting and developing street food vendors in tourist destinations: the external-stimulating media, tourists' thoughts, and tourists’ reactions. The expert evaluations of the suggested methodology are with the highRajamanagla University of Technology PhraNakho
การผลิตเอทานอลจากเปลือกแตงโมโดยกระบวนการหมัก
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562Ethanol is a form of renewable energy. That can be used as fuel. Can replace gasoline or diesel. Fuel is an important factor driving the country's economy. Ethanol can be produced from agricultural products, garbage and various waste. his research uses watermelon rind. Which is waste from the community as a raw material for the production of ethanol by the fermentation process the microorganisms used in the fermentation process are ball flour. After fermentation for 6 hours, it was found that the watermelon rind weighing 10 grams measured the concentration of alcohol. The concentration was 9.3 % VOL, 18 Brix %. 20 grams of watermelon rind, measuring the concentration of alcohol The concentration of 8.1 % VOL, 16 Brix % of watermelon rind at 30 grams, measured the concentration of alcohol. Get the concentration 8 % VOL, 16 Brix %, watermelon rind at 40 grams, measure the concentration of alcohol, get the concentration of 7.9 % VOL, 15.1 Brix % and watermelon rind at 50 grams, measure the concentration of alcohol the concentration of 7 % VOL, 15 Brix %.
Therefore, it can be said that the watermelon rind, which is waste from the community. Is a raw material with high potential for ethanol production to be used as a renewable energy source Instead of using raw materials from food plants and other energy crops.Rajamangala University of Technology Phra Nakho
หนังสือแรงบันดาลใจคอสเพลย์
Get PDFโครงงานพิเศษ (ทล.บ.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562This special project has purposes to 1) To study factors that inspire people to cosplay 2) To create the book and e-book of cosplay inspiration 3) To study people’s satisfaction over the book and e-book of cosplay inspiration and applying the working method for the future use. From this study, we found factors that inspire people to cosplay which are 1) watching cartoons and playing video games 2) other people’s persuasion to cosplay with them 3) studying from other Thai and foreign cosplayers 4) joining cosplay activity, and other factors. From the survey of satisfaction that we analyzed statistically, we found that readers have high satisfaction rate with the average 4.76 (SD=0.57).Rajamangala University of Technology Phra Nakho
ความต้องการจำเป็นในการเป็นมหาวิทยาลัยดิจิทัลของมหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2560This research aimed to 1) investigate the real states and expected states to be a
digital university of Rajamangala University of Technology Phra Nakhon and 2) analyze
needs for a digital university. The population and sample group were divided into 3 groups
including students enrolling in the academic year 2017, instructors and university staff. The
research tool was questionnaire. The data analysis consisted of frequency, percentage,
means, standard deviation and t-test. The Modified Priority Needs Index formula
(PNI Modified) was used to prioritize the order of needs assessment.
The research results showed as follows:
1. As for the real states and expected states to be a digital university, the means of
students and university staff groups were different at the statistically significant level of 0.01.
The real states’ overall means were lower than those of the expected ones. While the
means of instructor group were not different but considering in each aspect, it was found
that the real states’ overall means were lower than those of the expected ones.
2. Regarding to need assessment for a digital university, modified Priority Needs Index
(PNI Modified) was calculated. The PNI Modified of the student group was 1.14-1.68. The aspects
of classrooms and laboratories were found the highest PNI Modified (the first rank).
The PNI Modified of the instructor group was 0.04-0.22. The aspects of classrooms,
laboratories and learning resource service system were found the highest PNI Modified (the first
rank).
The PNI Modified of the university staff group was 0. 76-1.12. The aspect of learning
resource service system was found the highest PNI Modified (the first rank).Rajamangala University of Technology Phra Nakho
กลยุทธ์ในการยกระดับตลาดนางเลิ้งให้เป็นแหล่งท่องเที่ยวเชิงวัฒนธรรม
Get PDFรายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2560This research aims to enhance Nangleang Market as a top cultural tourist destination and to assist Nangleang Market to manage its cultural object into a sustainable way.
Primary sources were from field work as data collecting, interviewing 28 participants, namely people responsible to Nangleang Market’s tourism management both government and private sectors, people who buy food and things in the market, seniors in the community, local people, tour leaders, and tourists by using indicative questions. Second sources were investigated and analyzed from various information such as academic document and previous research.
It was found that the seven groups of participants credited on integrated strategy, including Communication Theory, Stakeholders’ Involvement, Civil State Empowerment, Social Network by Facebook, Campaign by Tourism Authority of Thailand, and Food Safety Standard as a strategy to enhance Nangleang Market to manage tourism sustainably rather than the single one.Rajamangala University of Technology Phra Nakho