This research was aimed to investigate for pineapple leaf paper drying. In this study process of drying the paper as a final step after the other. Paper drying time takes in solar energy to dry naturally for at least 2-3 days or more without natural sunshine. Solar hybrid energy dryer was designed for drying faster than traditional drying. The development of solar hybrid energy dryer ability to operate continuously. The solar dryer receives the heat from sunshine by passing into the solar panel dimension 1 x 2.6 m2 . The panel was installed on the top of the oven which declined 15 degree from the ground. The dimension of the oven is 1 x 1.05 x 1.30 m3 and have added heat to paraphrase another 2 rooms and heater 4 kW with controller and have added heat to paraphrase another 2 rooms. The dryer installed heater 4 kW with temperature controller and blower 0.22 kW serves as the circulation of heat in the oven to constant flow of 0.138 m3 / s. Experiment research test 3 types ; the use of solar energy alone the use of solar heater with a temperature of 50 55 and 60 °C and the heater only at 50 55 and 60 °C with three temperature settings. The variables in the study such as temperature humidity in the dryer humidity and Solar energy affect the pineapple leaf paper drying time. Experimental results from solar heater hybrid with 60 °C temperature setting was dried in minimum period of 3 hours and half at an average initial moisture content 1043.70% db to the final moisture content of 9.12% db. Highest average temperature in the dryer was 64.33 °C with electrical energy consumption 10.5 kWh. The use of only solar drying was dried in maximum period of 5 hours at an average initial moisture content 1070.98% db to the final moisture content of 15.84% db. Highest average temperature in the dryer was 39.89 °C with minimum electrical energy consumption 10.5 kWh.

Most inhabitants of Kaeng Pra Lom village Sai York Kanchanaburi province are royal through project of Princess Maha Chakri Sirindhom Rattanaraj Suda have an occupation of agriculture especially cassava com banana turmeric and other. Unfortunately a lot of some part of turmeric will be waste. As the result of only of turmeric will be waste. As the results of only some part of turmeric can be used and a lot of other will be destroyed. The objectives of this research are study of the properties of the fiber from turmeric waste design an Eco Designproduct transfer of technology to produce a prototype community and prepare a business plan. The fiber of turmeric stem was separated by soaking with solution of sodium hydroxide and economic fiber will be modifYing by using high performance machine to create an Eco Designproducts home decorate or using as a material for a factory.

The objective of this work is to study the effect of the surface roughness on the measured hardness. The preparation of the surface roughness level complied with the ISO 1302: 1992 standard. There are many factors influencing surface roughness such as building mac uncry feed rate speed machine settings cutter and water cooling. The surface roughness C.tU. by these factors will have influence on the measured hardness of materials. The SKS3 is used as material in this study. Surface of the work piece was adjusted with different roughness val es divided following four levels: 12-50 urn rough machined 1.6-6.3 urn smooth turned 0.2-0.8 urn and 0.025-0.1 um. Then all the adjusted roughness work pieces were harden. After the Harden process the hardness of all work pieces were 62-64 HRC. From the measured hardness results it was found that the standard deviations are 4.665 1.0310.530 and 0.407 respectively with surface roughness value. Therefore it can be concluded that the standard deviation of hardness increased when the surface roughness increased

โครงการวิจัยนี้ มีวัตถุประสงค์เพื่อศึกษาและเปรียบเทียบประสิทธิภาพการตัดเฉือนของโปรแกรมงานกัดด้วยเครื่องกัดอัตโนมัติสำหรับการผลิตชิ้นส่วนในอุตสาหกรรม โดยการเปรียบเทียบทิศทางการกัดงานที่ผ่านการกัดโดยใช้ G41 และ G42 เอ็นมิลล์่ขนาด 12 มม. 4 คมตัดชิ้นงานที่ใช้ในการทดสอบเป็นเหล็ก S45C โดยกัดชิ้นงานที่ระยะทาง 3000 มม. ใช้เครื่องกัดจำนวน 3 เครื่อง การวิจัยนี้ทดลองภายใต้เงื่อนไขเดียวกัน ผลการวิจัยและทดสอบข้อมูลทางสถิติโดยการเปรียบเทียบโปรแกรมการกัดงาน โดยใช้ G41 และ G42 ปรากฎว่าชิ้นงานที่ผ่านการกัดงานโดยใช้ G41 และ G42 มีความแตกต่างกันอย่างมีนัยสำคัญ ที่ระดับนัยสำคัญ 0.05 โดยชิ้นงานที่ผ่านการกัดงานโดยใช้ G41 การสึกหรอที่ดอกเอ็นมิลล์จะเกิดขึ้นน้อย แต่ผิวที่ได้จะมีความหยาบส่วนชิ้นงานที่ผ่านการกัดงานโดยใช้ G42 การสึกหรอที่ดอกเอ็นมิลล์จะเกิดขึ้นมาก แต่ผิวที่ได้จะมีความละเอียดมากกว่า

The aim of this research is to design and create the sorting machine within the engineering knowledge by using the three-layer sieve set cylindrical sorting machine under the various conditions of experimental. Furthermore the Specific Energy Consumption [SEC] of Robusta coffee bean separates the standard size of Robusta coffee bean the total of product separated are regarded. For the experiment condition rotation speed adjustable to 9.6 and 14.4 rpm. The raw material flow through to sieve and determination the standard size for calculating the [SEC]. The result of experiment found that the average of total of product separated was 165.1 kg/hr. and 164.7 kg/hr or 99.57% from that were passed the criteria of standard according to the ministry of agriculture cooperative. In order to the [SEC] the cylindrical sorting machine was 0.01631 MJ/kg at 14.4 rpm of rotation speed. However the values of [SEC] may be change from the effect of rotation speed of sieve set.