In general for the refrigeration the cooling coil is almost used to be the device to decrease the temperature. Thus in order to design heat exchange we should study the heat transfer into the cooling coil. This research proposes the numerical using finite element method for calculating the temperature at any position of the cooling point for considering to porous media. After that to create an algebraic equation fmite element for writing the program to search the solution by estimating the temperature. The research demonstrates that the changing of temperature will be decreased to saturated condition that is the temperature around the region of the cooling coil model edge will be decreased. The longer time the lower temperature around each position will decrease respectively until the temperature at each position inside the model are the same as region of the cooling coil model edge. Therefore this search result can be the basic for the comparison with the similar problem of other

This research aimed to study the basic recipes of making “Pla Nil Yong” were studied. The Completely Randomized Design (CRD) was used to evaluate the sensory property in overall liking the characteristic appearances color flavour taste and texture. There were used 30-testers and a 9-Point Hedonic Scale were used. The study found that the second basic recipe had the highest scores in overall satisfaction. The 3 types of heating of fish meat production used were: Steaming Pressure Cooking and Broiling. It was found that the Pressure Cooking had the highest scores of all averages. The Steaming and the Pressure Cooking made the fish fiber fluffier than the Broiling. By the color variation of finishing product was as follow: Brightness (L*) 53.91 Red (a*) 10.50 Yellow (b*) 30.25 aw 0.57. By the amount of total microorganism 2.5x102 CFU/g Yeast and Fungus <25 CFU/g Moisture 4.75% Fat 6.54% Protein 48.06% Ash 7.47% Fiber 0.54% Carbohydrate 32.64%. The study of 3-differrent-temperature of storage were 28 40 and 50 degree Celsius. In 90-day storage checking; found that all of the three variation had overall liking the characteristic appearances and color were different but flavour taste and texture were of no difference. The total amount of microorganisms: yeast and fungus were a lower standard. The production cost of Pla Nil Yong is 397.10 bahts per kilogram.

Cooling water recovery from water distillation equipment was a research that has the objective to restore the cooling water from distillation equipment which installed at textile chemistry technology department laboratory at Textile industrial and fashion design in Rajamangala University of Phra Nakorn. The research plan was designing and developing the water distillation equipment type cyclon ultrapure water stills model WSC008 of Fistreem company. The outcomes found the designed system could save the tap water consumption 3462.72 square meters per year. That was implied 7617.64 Bath per year of tap water consumption could be save what the tap water consumption rate was 2.22 Bath per square meters. This system was paid back in 3.33 years and the benefit-cost ratio for single project (B/C ratio) was 1.26 (>1). Finally this project was successfully to save the tap water consumption and great benefit investment.

Degumming process is a fundamental process for silk yam and silk fabric finishing. The main objective is scouring the substrate such as silk gum (sericin) wax and fatty acid from silk fiber. The principle of degumming process is destroying the peptide linkage of amino acid in sericin structure into a small molecule which is soluble in water. The hydrolysis reaction performed by acid alkaline enzyme surfactant as soap and high pressure steam process. The conventional methods favor degumming with soap and sodium carbonate. This process has a problem on the surface area of silk. Proteolytic enzymes can answer this problem but it seldom use because of a specific condition and high cost. For this reason the insteading of papain enzyme from dry latex of Carica payapa Linn. was decided to use for silk degumming at any condition study. This research was concerned with the silk degumming using papain enzyme form dry latex of Carica payapa Linn. The degumming process was performed at the temperature vary from 55 -85 degree Celsius time fromlO to 40 minutes and the amount of dry latex ranging from 0 to 4% owf in order to study the suitable condition for degumming and surface morphology. The efficiency of degumming process was evaluated by determination of tensile strength and stainiqgJest with dire~~ dyes (C.1. Direct Red 80~StaIDing result.will be opposed to degumming efficiency. The result was revealed; the appropriate conditions for silk degumming with dry Carica payapa Linn. s latex were recommended as follows : the amount of dry latex solution of 4 % owf at 75 degree Celsius for 30 minutes. The degummed fibers leaves lustrous soft and surface smooth. This condition does not have effect to tensile strength and fiber surface.

Objectives of this study A Study of Current Image and Desired Image of Rajamangala University of Technology Phra Nakhon Graduates according to Opinion of Entrepreneur were to study and compare viewpoint of employers regarding current image and desired image of students who graduated from Rajamangala University of Technology Phra Nakhon. Survey research methodology was exploited by distributing questionnaires to sample group of 247 employers. Thereafter collected data was analyzed using SPSS for Windows v. 14.0 to fmd frequency percentage standard deviation mean and t-test at statistically significant level of 0.05 for hypothesis testing. The results of this study were as follows: 1.Rajamangala University of Technology Phra Nakhon graduates had current image at high level by good mental health cheerful and happy graduates had highest means value while graduates with knowledge and ability in foreign language had lowest mean value. The result also showed that desired image of graduates were high by good moral and ethic graduates had highest mean value whereas graduates with knowledge and ability in foreign language had lowest mean value. 2.By comparing current image to desired image in employers viewpoint of Rajamangala University of Technology Phra Nakhon Graduates the study found that all images were significantly different at the level of 0.05 except good mental health cheerful and happy graduates.