จำนวน Repository ( 87 )

ผนังปลูกพืชจากใบสักเพื่อเป็นฉนวนกันความร้อนให้กับอาคาร
ผนังปลูกพืชจากใบสักเพื่อเป็นฉนวนกันความร้อนให้กับอาคาร

At present global warming is a major problem that needs to be addressed and mitigated. The problem arises because human housing construction is increasing. The surface of the soil which is a source of vegetation was scattered by the building. The impact of the construction resulted in higher overall temperatures. This is caused by the heat accumulated in the building material. Particularly for building materials that have been exposed to direct sunlight this has had an impact on the comfort of the occupants in the building. This research is an experiment to make a wall of plants from a tattoo. The natural plant material was planted to study the solar radiation efficiency of the planting wall of the tattooed leaves installed on the test box. Based on the analysis of the data it can be concluded that the test wall covered with vegetation leaves the temperature lower than that of the other walls. Different test walls make different internal and external temperatures. Sun radiation affects the test wall temperature varying according to the amount of sun radiation received. Observed by changing internal and external wall temperatures at different intervals. Use plants to protect the walls to prevent heat by keeping the walls under the shade of the plant. It also radiates heat through the leaves. Leaves are a thermodynamic variable that is cooled down by the evaporation of leaves. Plants on the wall will absorb the water inside to evaporate. The temperature of the tree is cool. When combined with the airflow through the wall the shade will blow the hot air under the leaves and the water vapor from the dehydration process of the plant. The heat from the tree wall to the environment is better. As a result the internal temperature decreased.

2563
แผนฉนวนกันความร้อนจากใบสักเพื่อลดความร้อนให้กับอาคาร
แผนฉนวนกันความร้อนจากใบสักเพื่อลดความร้อนให้กับอาคาร

This research aims to investigate and test the feasibility of the production of natural teak sheets and study the appropriate production methods. Study physical properties and mechanical properties to compare with industry standard insulation sheet. The ratio of tattoo and hyacinth. 5% 7% 9% of the material were dried at 400 600 800 kg / m3. The results showed that the modulus rupture. Elastic modulus And thickness swelling. It varies with the amount of glue. The nature of the tattoo causes absorption in the material if the density increases the water absorption will decrease. Compared to standard insulation products. The amount of adhesive is 7% of the weight of the material when dry. The density of 800 kg / m 2 is 25 kg / cm2. 140 degree Celsius ruptured modulus and elastic modulus But the thickness of the swelling has not met the criteria. In the next production should be mixed waterproofing in the work.

2563
การศึกษาพฤติกรรมการถ่ายโอนความร้อนในระบบเบรกเพื่อกำหนดค่าการนำความร้อนของผ้าเบรกที่เหมาะสม
การศึกษาพฤติกรรมการถ่ายโอนความร้อนในระบบเบรกเพื่อกำหนดค่าการนำความร้อนของผ้าเบรกที่เหมาะสม

Brake pad is a one of products that plays a role in the automotive parts industry and directly affects safety. Therefore there are many designs of brake pads for product development. This research aims to study the thermal conductivity of brake pads and define the thermal conductivity that appropriate to brake pads and also solve the problem of deterioration of braking automotive parts. To achieve this the 3 different ingredient brake pads from Compact International (1994) Co. Ltd. are studied in terms of the heat transfer behavior. The experimental work was set by simulating a brake on the single dynamometer at the braking speed of 50 100 and 130 km/h. As a results the significant parameters are copper and fillers respectively. It affects the heat transfer behavior by means of applying heat from the contact area between the brake pad and the brake disc to the caliper This knowledge will be used in the design of brake pad ingredients to determine the appropriate conductivity of the brake pads.

2563
การศึกษาอุณหภูมิความร้อนที่เหมาะสมต่อการอบเผาขจัดต้นแบบเรชิ่นในเบ้าปูนหล่อเครื่องประดับ
การศึกษาอุณหภูมิความร้อนที่เหมาะสมต่อการอบเผาขจัดต้นแบบเรชิ่นในเบ้าปูนหล่อเครื่องประดับ

The results of the study on the optimum temperature for baking soda extinguishers were investigated. B9R-3-EMERALD Using brass material in experiments. It was found that the temperature of 750˚C was good for 48% of the workpiece 52% was found that the workpiece was damaged at the surface of the work very porous at the surface. Caused by the heat of metal water pouring into contact with the moisture of the mold resulting in gas. High temperature of metal water Or eliminate gas in metal water is not exhausted. The workpiece is not suitable at a temperature of 800 ° C with a good workpiece of 76%. The workpiece loses 24%. The workpiece loses less punch at the lower porosity as well at 750˚C in temperature. 850˚C workpiece 96% workpiece 4% workpiece the workpiece is almost out. It is less than 750˚C and 800˚C at porosity. And at 900˚C the workpiece is 100% of the workpiece 0%. The workpiece is the best. Workpiece waste from the minimum. The test results make the temperature at 900 ° C is the cleanest casing temperature

2563
การศึกษาสภาวะที่เหมาะสมสำหรับการหล่อขึ้นรูปตัวเรือนเครื่องประดับโลหะทองขาวเจือต่ำ 8wt% Ag Au Cu Zn Sn สำ หรับผลิตชิ้นส่วน ประกอบตัวเรือนเครื่องประดับ
การศึกษาสภาวะที่เหมาะสมสำหรับการหล่อขึ้นรูปตัวเรือนเครื่องประดับโลหะทองขาวเจือต่ำ 8wt% Ag Au Cu Zn Sn สำ หรับผลิตชิ้นส่วน ประกอบตัวเรือนเครื่องประดับ

This Research is to Study the Development of 6k White Gold Low Alloys Metal for Jewelry Production The Optimum Conditions for Casting Jewelry and Jewelry were Investigated. The Results of the Experiments Show that the Chemical Composition of the 8k White Gold Low Alloys is Slightly Different when Compared with XRF (X-ray Fluorescence Spectrometers) Pre-and Post-Melting Quantities The Heat of the Test Specimen was found to be 33.33%Au+50.67%Ag+10%Cu+5%Zn+1%Sn33.33%Au+50.67% Ag+8% Cu+7%Zn+1%Sn and 33.33%Au+50.67%Ag+8%Cu+8%Zn+0%Sn It is Found that the Heat from the Beginning to the Level of Change before the Liquid is used the Average Temperature of 458.9 – 326.3 Degrees Celsius Respectively 33.33%Au+50.67%Ag+8%Cu+7%Zn+1%Sn It is the Formula that Gives the Lowest Value of Liquid State Change from 326.3 Degrees Celsius to the Best Value of this Experiment. Suitable for use in the Manufacture of Jewelry due to its Melting Ability for Molding. Melting for Molding and Formed by Hand. The Amount of Zinc(Zn) may be an Important Factor in the Variation which is Directly Proportional to the Maximum Increase in the Final order of 7 Percent

2563