At present in Thailand single cylinder small engines have been used generally for agriculture. This leads to large amount of fuel import while the price of fossil fuels rise continuously. The Department of Alternative Energy Development and Eff iciency Ministry of Energy decided to draft the minimum energy eff iciency standard for small engines by studying and testing specif ic fuel consumption of gasoline and diesel engines based on the JIS B 8017 and TIS 787-2551 standards respectively. Results of the experiment revealed that specif ic fuel consumption of gasoline engine was higher than diesel engines between 39% and 49% at equivalent energy supply. However the limitation of maximum and minimum energy eff iciency for gasoline engine is still necessary in order to enhance energy eff iciency of small engines manufactured in Thailand

This paper presents the development of Automatic Malfunction Warning System (AMWS). The objective is to improve the performance of 5-kWp Grid-connected PV system with real time PC based monitoring system installed at Rajamangala University of Technology Suvarnabhumi Nonthaburi Thailand. The system is able to measure electrical parameters and air condition with real-time display. The AMWS comprises of hardware and software. The software was developed by LabVIEW. The AMWSs function is to monitor important equipment in the PV energy system. If there is a malfunction or any detected faults the AMWS would directly warn the operator of the PV energy system instantly. Results showed that the AMWS can complete programmed operation according to specified condition. The AMWS can send the right details and the cause of malfunction by SMS and E-mail every time the system did not work properly. The benefit of this system is that the operator can get the system to run properly and fix problems in a short period of time

The objective of this research is to study the implementing the agricultural residue to the design of outdoor paving block for lowering the building temperature. The base layer admixture (layer no.1) is selected from cement type1: quarry dust: rice husk: rice straw: water ratios equal to 1: 3: 0: 0: 0.3 1: 1: 0: 1: 0.5 1: 1. 0.25: 0.75: 0.5 1: 1: 0.5: 0.5: 0.5 1: 1: 0.75: 0.25: 0.5 and 1: 1: 1: 0: 0.5 by weight. The surface layer admixture (layer no.2) is white silica cement: yellow stone chip no.4: water equals to 1: 4: 0.3 by weight. The exterior floor-covering blocks were tested following density testing water absorption testing compressive testing and surface temperature testing compare with laterite sandstone paving concrete block marble and granite. Resulting the best ratio of cement type1: quarry dust: rice husk: rice straw: water is 1: 1: 0.75: 0.25: 0.5 that has properties at 28 days following 1939.43 kg/m of density 14.97 % of water absorption 284.69 ksc of compressive strength and lower than other paving blocks around 3 – 13 degrees Celsius of surface temperature

This article presents the energy conservation of the wood furniture factory in Samutprakarn province by using engineering management technique. The electrical energy of 7408000 kWh per year or 25988055 Bath per year is mainly used in the processes including a heating energy system that is derived from wood scrap. After detailed audit it was found that 8 measures have a potential to improve energy efficiency. 7 measures for electrical energy can reduce the energy of 479837.60 kWh per year and the rest decreases heating energy of 120297.15 MJ/Year or saving the scrap of 9.4 tons per year. In order to assess economic possibility all measure also were considered. The result showed that it was worth to investment. In addition specific energy consumption (SEC) can be improved from 0.57 kWh/ft3 to 0.54 kWh/ft3 or diminishing of 5.26 %

The research in the aim for useless material from cashew nut shell produce are heating energy briquettes to use recompense energy fine wood and charcoal from natural. By the flour paste is join together pass procedure heating briquettes with hand press implement. It is cashew nut shell can make to burn with earthen stove high temperature stove and steel stove from cashew nut shell are still shape and have bring into fine crush machine receive dust charcoal. It is mixed dust charcoal with flour in ratio 5:1 (by melt flour into hot water one liter until flour paste) mixed and bring into heating briquettes with hand press implement receive heating energy briquettes are no broken. When we bring expose to the sun until dried. After that to test efficiency of heating energy to see that cashew nut shell can to produce are heating energy briquettes. It use heating energy in home family in community replace to use from fire wood and charcoal from natural and heating energy briquettes from cashew nut shell can to use a make cooking well no broken fire well and height heater. It is suitable to produce heating energy for to use home family communities or commercial production and industries are use heating energy from fire wood and charcoal.