The objective of this paper was study guidelines for taxation to promote the use of energy efficient passenger cars. The passenger car taxation of 4 developed countries; namely Japan Germany United Kingdom (UK) and United States (US) were analyzed and compared with Thai taxation. And studied barriers for promote the use of energy efficient passenger cars in Thailand. This survey conducted by using the close-ended questionnaires collecting data from 400 people who used passenger cars in Bangkok. The results found that tax on acquisition in the developed countries were only subjected to sales tax while Thailand’s acquisition tax composed of customs duty excise duty municipal tax and value added tax. The ownership tax rates of passenger cars in Japan Germany and UK were based on different fuel consumption parameters such as cylinder capacity vehicle weight and CO2 emissions which can promote energy efficient cars. On the contrary the ownership tax rate of USA and Thailand reduces with the age of vehicle. Fuel tax was imposed to support the country energy policy. Opinion survey results of barriers for promoting energy efficient passenger cars in Thailand showed that the significant problems were the lack of incentives measures to promote the use of energy efficient cars.

This study focuses on appropriate opening design of natural ventilation for green chemistry laboratories in Thailand. Even though natural ventilation is an alternative way to save energy from using air conditionings nowadays there is no design guideline to promote natural ventilation for chemistry laboratories in the country. Computational fluid dynamics (CFD) was used to simulate building models with various orientations and opening types. Then a set of simulations was run to test the effect of lay-out designs and opening locations in conjunction with the type of building models such as single-loaded corridor double-loaded corridor and atrium-loaded corridor by comparing ventilation performance with 8 wind directions at the speed of 2 meters per second. Results show that the single-loaded corridor lay-out design and opening arrangement which angled at 180 degree of wind direction and average wind speed of more than 0.5 meter per second was the most suitable comfort for improved natural ventilation in chemistry laboratories. Natural ventilation helps in reducing energy consumption improving quality of indoor environment and responding to the need of users based on standards and principles of green chemistry laboratory design.

The purpose of this study was to study and compare problems of members of community Phya Prasit towards saving in two aspects: knowledge of saving and perspective of saving. The samples were classified by gender age occupation status education and monthly income. The samples in this research were 126 members of community Phya Prasit. The study participants selected by simple random sampling. The test with 23 items and questionnaires of rating scales with 24 items were used as the research instrument. Percentage mean standard deviation t - test for independent sample F - test and Scheffe’s test analysis were statistical method to analyze data. The results were as follows: 1. Since income of the members of community were relatively low no extra revenue and debt to be paid. So guidelines for the development on savings were as follows: training to make plan for savings promote to make the household account training to make extra money training planned to spending and training to make the knowledge of investment. 2. Problems of members of community Phya Prasit towards saving: in aspect of knowledge on saving of members of community were relatively low while perspective of saving was in a great extent. 3. There were significant difference for problems of members of community Phya Prasit in aspect of knowledge of saving at the 0.05 level among members of community Phya Prasit in different gender and different age. 4. There was significant difference for problems of members of community Phya Prasit in aspect of perspective of saving at the 0.05 level among members of community Phya Prasit in different occupation.