Trimethylolpropane (TMP) esters can be synthesized via catalytic transesterification of TMP with fatty acid methyl esters (FAME) in the base catalyst. This work investigated the catalytic performance of hetero- geneous base catalysts, such as Ca(OH)2 and CaO in the transesterification of TMP with mixed C8-C10 FAME.
Eight cultivars of napiergrass (Pennisetum purpureum Schumach.), namely Dwarf, Muaklek, Bana, Taiwan A148, Common, Wruk wona, Tifton and Kampheng San, were grown in central Thailand in 2008-2009 and biomass yield, chemical composition and theoretical ethanol yield were measured. Harvests were made every 3 months. Biomass yield and cell wall compositions differed significantly (P < 0.05) among cultivars. Tifton produced the highest annual bio- mass yield at 58.3 t/ha followed by Wruk wona (52.1 t/ha), while the lowest yield of 27.1 t/ha was in Dwarf.
The ethanol blended fuel performance evaluation are performed on motorcycles in Thailand. The evaporative emission from four models of four-stroke motorcycle fuel with E0 , E10 and E20 are tested in this study. The are totally 8 motorcycles; two motorcycles from each selected models, are use for performing the tests. The evaporative emission and tailpipe emission are measured in difference legislation. The emissions from MC model A and C (fuel injection) are measured according to TIS 2350- 2551 (equivalent to 97/24/EC , Euro 3).
คู่มือการใช้งานและบำรุงรักษาระบบ โครงการการศึกษา พัฒนาระบบผลิตแก๊สชีวมวลเพื่อผลิตไฟฟ้า ในเครื่องยนต์สันดาปภายใน