This paper presents an establishment of a mathematical model to determine the optimal size of heat pipe (thermosyphon) heat exchanger for reduce the inlet air temperature in evaporative cooling system of greenhouse. The condition of a mathematical model is the total length of heat pipe is 1.5 m. A mathematical model will determine the optimal value of evaporator section and condenser section. The range of evaporator length is 0.5 – 1.4 m with an increment of 0.1 m and condenser length is in range of 0.1 – 1.0 m with an increment of 0.1 m. The inlet air temperature in evaporative cooling of greenhouse is depend on ambient temperature about 35 degree Celsius. While the cooling water temperature is 20 degree Celsius. Evaporative pad of evaporative cooling system is 2 m in width and 7 m in length. From the conditions above the optimize results from a mathematical model are as follows: evaporator section length is 0.9 m and condenser section length is 0.6 m moreover it was shown that investment net saving and maximum heat rate are 79.83 Thousand Baht 0.552 Million Baht and 15.6 kW respectively.

Thailand may experiencing The Dark World within 12 years in the future as the UK has revealed that could be found Crisis of Dark World after power not enough for The entire country in this Winter.[1] Thailand has to plan Thailands power capacity development within The National Energy Policy Committee (NEPC) The Cabinet in June 2007 assigned to the Ministry of Energy. Then Energy Policy and Planning Office (EPPO) and Electricity Generating Authority of Thailand (EGAT) have to plan Thailands power capacity development known as PDP 2007(Power Development Plan) Since 2007-2021 .Then first thing should take to forecast a shortage of power in Thailand. The Research found that Thailand may experiencing fuel shortages that will bring electricity such as Natural Gas in Gulf of Thailand will run out within 20 years Oil prices higher deterioration of the power plant about 5 plants. Current energy sources used to produce electricity to most of Thailand about. 66.19% of energy from natural gas remaining list is lignite approximately 12.60% coal 8.39% water energy 5.43% bought for 3.06% furnace oil 2.66% renewable energy 1.64% diesel oil 0.03% [2] The forecast demand of electricity since 2008-2021 is found since 2016 get start problem about Thailands capacity to produce electricity is 44562.8 MW but domestic demand is 44585.40 MW that mean capacity of energy is not enough for demand that lack approximately 295.6 MW. Thailand has to consider fuel source to bring electricity what be produced at lower costs to compete in international markets such as nuclear power plants etc.

The adsorption of cotton fabric is improved by treatment with sodium hydroxide which is called causticization method. In the method it is necessary to wash off unreacted sodium hydroxide from the fabric and then neutralize with some acids such as acetic acid and sulphuric acid. In this research citric acid was used to neutralize causticized fabric and anticrease finish on cotton fabric. The citric acid is non-formaldehyde anticrease finishing agent. So that the two processes i.e. causticization and anticrease finish could be combined into one continuous process. And it was found that the causticization would improve some properties of anticrease fabric with citric acid. From the result it showed that the anticrease fabric had lower tensile strength than untreated fabric. The anticrease finish with 6% w/v citric acid had higher tensile strength than 8 and 10 % w/v respectively. When concentration of acid curing temperature and time were higher wrinkle recovery angle would be increased. The effect of catalyst showed that anticrease finish using sodium hypophosphite as catalyst was higher wrinkle recovery angle and tensile strength than non-catalyst finish. The causticization before anticrease finish would increase tensile strength and whiteness of fabric when compared to only anticrease finish. The effect of catalyst showed that at low acid concentration increasing of catalyst didn’t have effect on tensile strength and wrinkle recovery angle value. At higher acid concentration trend of tensile strength was decreased whereas wrinkle recovery angle increased and slightly effect on whiteness.

This research aims to study The Information Perception About Public Relation of RMUTPs of Students and Staffs by using survey research. The questionnaires are used to collect data from a total of 400 samples. Percentage Mean Standard Deviation t-test one way ANOVA and analysis of variance are use for statistical analysis of data with the level of significance at 0.05. The result of this study show that: I. The difference in sample Demographic Characteristics has difference effect upon the information perception with the level of significance at 0.05 except age and status have no effect upon the information perception. 2. RMUTPs and staffs who received the information from medias of RMUTP has difference effect upon the information and when we compare the media perception with the level of significance at 0.05 this study found the difference between leaflets and Poster

This research aim to improve a combustion system of boiler within increase combustion efficiency and use all out of the energy. The large boilers were used in the industrial factories which consume a lot of energy for production. By oil and gas fuel will be increasing costs everyday cause many factories interested in energy saving with any method technical engineering specifically for production costs and environment effect decreasing. This researching was installed and program was invented in the industrial factory. This industry factory consumed cogeneration energy for fabric dying. The efficiency before installing the software is measured about 65.85 - 71.98% which heat in exhaust gas about 20% of overall energy is filled in the system. After installing heat loss in the system has been fallen until remain about 5 - 12% and efficiency of heat in system has been reached a peak of 80 - 85%.