จำนวน Repository ( 1574 )
การพัฒนาและประเมินผลเครื่องอบแห้งแบบปั๊มความร้อนขนาดเล็กสำหรับกล้วยน้ำว้าสไลด์
The purposes of this research were to develop and to test performance of mini heat pump dryer for slice banana. Drying chamber of 0.48×0.47×0.39 m3 was designed and it could contain three trays. The three trays had dimension of 0.33×0.409 m2. A blower with 174.6 W motor of air condition was modify and could adjust flow rates of three levels for air cycle system in dryer. The air system had bypass air at evaporator. The refrigerant of R-134a and four main parts were used in the heat pump system. The four main parts were a 497 W hermetic compressor a 1800 W condenser an expansion valve and a 1300 W evaporator. Experiments for test performance of the mini heat pump dryer used close loop air system an evaporator bypass air of 60 % a temperature of 60 oC and various flow rates of 0.117 0.128 and 0.140 m3/s. Slide bananas of 400-500 g had an initial moisture content of 244-281 %dry basis and were dried until final moisture content lower than 6.24±0.007 %dry basis. It was found that the flow rates of 0.117 0.128 and 0.140 m3/s had coefficients of performance (COPh) of 3.32±0.066 3.88±0.031 and 4.24±0.08 respectively and had specific moisture extraction rates (SMER) of 184.5±11.85 186.2±8.17 and 200.1±21.34 g/kWh respectively. The flow rate at 0.140 m3/s was the best condition because it had high specific moisture extraction rate.
การเสริมสร้างความร่วมมือของชุมชนท้องถิ่นเพื่อสร้างความมั่นคงด้านที่อยู่อาศัย
This research uses a participatory action methodology which is divided into 3 phases: meanings analysis significance and housing problems of low-income people. Development stage of local community cooperation activities including the system synthesis and mechanism of cooperation of local communities towards housing security use in-depth interviews group chat workshop lesson learned together with observation and field notes. The target groups are members and the committee of Baan Mankong Tha Makham community leader the network development partner’s representatives and relevant officers. This focuses on qualitative data collecting which uses content analysis and summarization. The study found that: for the meaning the importance and the housing problems of low-income people the following are considered: (1) Meaning and importance of the word Nice city and Tha Makham Model. It consists of three dimensions: dimension of residence dimension of happiness and dimension of quality of life. (2) housing Problems of low-income people such as urban problems residence condition problems the problem of inequality and problems of accessing capital. Most of people are low-income and disadvantaged who live in urban areas. Some live with relatives or in a rented house on the land of Royal Property land of a temple and land of State Railway of Thailand. Some don’t have any land or residence of their own. Some were expelled and their houses were dismantled from the area. The system and mechanism of cooperation of local communities towards housing security has four characteristics as follows: (1) People system including members committee as well as committees that look after and manage various funds in Baan Mankong project. 2) The organizational system i.e. the local government organization and related agencies (3) Information system i.e. information and various activities related to the development of Baan Mankong project. 4) Capital system consists of monetary capital or budget such as fund credit community welfare and social capital. These are the value of coexistence support sacrifice and sharing including social relations that requires 3 main thinking bases: (1) thinking principles e.g. living according to the concept of sufficiency economy and self-reliance (2) principles namely Baan Mankong principle saving principle cooperative principle house construction principles and development principle towards sustainability and (3) doing principles refer to the participation on thinking participating doing developing and taking the benefits. .
โครงการออกแบบและพัฒนาผลิตภัณฑ์ชุดเฟอร์นิเจอร์จากผ้าด้นมือเพื่อยกระดับงานทำมือที่เป็น เอกลักษณ์ท้องถิ่นสู่ระดับสากล ของกลุ่มสตรีสหกรณ์บ้านธรรมเมือง ตำบลช่อแฮ อำเภอเมือง
The design and development of furniture products from hand-stitched to enhance local craftsmanship to a local level Of Baan Tham Mueang Cooperative Women Group Cho Hae Muang phrae Phrae. The objective is to study the theory about identity and identity of Phrae Province Study wisdom hand-stitched production process Of the Tham Muang Cooperative Womens Group Cho Hae Subdistrict Mueang District Phrae Province as well as developing and promoting the design of hand-woven products in accordance with the design guidelines. And upgrade to the international standard in the present time and to design and develop products from hand-made cloth to have the identity and identity of Phrae and industrial standards The research was conducted by collecting basic information by reviewing literature documents concepts and theories as a guideline for creating a research framework. The creation of variables indicators and research guidelines with concepts theories and research related to this study. To survey the area of Tham Mueang Cooperative Women Group Cho Hae Subdistrict Mueang District Phrae Province to use as a case study To study design variables through the physical characteristics of the product design from hand-stitched. The researcher therefore uses a specific sample selection method. By selecting groups that have qualifications that cause recognition of furniture product designs from hand-woven fabrics And choose a sample group To represent a group of users and product designers By using a simple random sampling method consisting of 100 people. The researcher used the quota sampling method to obtain the characteristics of the sample that wanted to communicate their identity and identity. Of Phrae Province In the analysis of evaluation of consumer satisfaction with furniture sets from hand-woven fabrics To upgrade the craftsmanship that is local to the international level Of Ban Tham Mueang Women Cooperative Group Cho Hae Subdistrict MueangDistrict Phrae Province In overall consumers are satisfied with the product at a good level
การศึกษาการออกแบบด้วยกรรมวิธีการฉีดยางและประยุกต์ใช้ยางธรรมชาติในการผลิตขึ้นรูปยางหุ้มปลั๊กไฟด้วยแม่พิมพ์
The plastic outlet problem is a rigid inflexible material. When assembling with a metal outlet set then it is usually not completely homogeneous. When used The outlet burns out quite often. And the plastic itself is less heat resistant. This allows the plastic to melt burn easily and conform to the upgrade of technology capabilities in precision mold manufacturing. And high complexity The researcher has foreseen the factors in making Developing the design and manufacturing of rubber plug molds economic opportunities for Natural Rubber Applications Therefore came up with the idea to develop the design and material selection. And the factors that affect the production is the mold and the process of forming. To help entrepreneurs to exchange knowledge and study the knowledge from this research to continue in the application of natural rubber to increase future value. From the results and experiments it was found that the study of the method of creating a prototype compression molding kit by using rubber forming techniques can be applied and used by various components of forming rubber can be used to develop forming Rubber plug sockets are possible and this process can produce prototypes from natural rubber.
การพัฒนาระบบอบแห้งดีปลีด้วยเครื่องอบแห้งแบบโรตารีร่วมกับการแผ่รังสีอินฟราเรด
The objective of this research was to study of rotary drying of high-moisture long pepper by using a combined hot air and infrared radiation. The experiment was carried out at the drying temperatures of 80 90 and 100 °C infrared power level of 500 W hot air velocity of 2.5 m/s and rotary revolution of 3 6 and 9 rpm. In this study two patterns were examined by the different drying conditions namely 1) hot air drying and 2) combined hot air and infrared radiation drying. The effects of above drying parameters on the change in moisture content of long pepper and specific energy consumption (SEC) of the drying system were investigated. The results showed that the combined hot air and infrared radiation drying was shorter drying time than hot air drying. The lowest total SEC during drying process of 26.77 MJ/kg water when the drying temperatures of 80 °C infrared power level of 500 W hot air velocity of 2.5 m/s and rotary revolution of 3 rpm were used.