Technology Reports of Kansai University (ISSN: 04532198) is a monthly peer-reviewed and open-access international Journal. It was first built in 1959 and officially in 1975 till now by kansai university, japan. The journal covers all sort of engineering topic, mathematics and physics. Technology Reports of Kansai University (TRKU) was closed access journal until 2017. After that TRKU became open access journal. TRKU is a scopus indexed journal and directly run by faculty of engineering, kansai university.
Technology Reports of Kansai University (ISSN: 04532198) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are
in the following fields but not limited to:
The present research is concerned with studying experimentally the characteristics of flow over six different models of humps which are manufactured with a suitable scale and fitted to a laboratory flume. The hump models are placed at 70cm and 130cm from the upstream (us) of the flume inlet. Dimensional analysis is carried out to identify the parameters affecting the experimental work. The results showed that models 2, 3, and 6 retain water and the damming phenomenon is occurred at distance 70 cm and 130 cm from the upstream (u/s) of the flume; but models 5 is able to activated these actions at the distance of 130 cm only; while models 2 and 4 are unable. The results are also showed that Froude Number (Fr) indicates that the type of flow at the upstream (u/s) of the hump is subcritical and is supercritical in the downstream (d/s), while it also find that the flow is supercritical at the hump in the case of damming occurrence. The results showed that there is a difference in the height of the water between upstream and downstream of the flume by 200% to 350% at distance 70 cm while it is found that this difference by 172.72% to 337.5% at distance 130 cm
Waste cooking oil is one of the vegetable oils produced from the use of cooking oil continuously and is very dangerous if consumed again because it has exceeded the maximum level of quality of cooking oil, one way to utilize triglycerides contained in waste cooking oil is by transesterifying the waste cooking oil with methanol into biodiesel using heterogeneous catalysts. The purpose of this study was to determine the effect of adding the concentration of CaO/ZnO catalyst, mole ratio of waste cooking oil and methanol, and reaction time to the yield, and characteristics of biodiesel. The production of biodiesel was carried out by varying the concentration of CaO/ZnO catalysts by 0.5 %, 1 %, 1.5%, 2 %, and 2.5 % w/w oil, the mole ratio of oil with methanol 1 : 3, 1 : 6, 1 : 9, 1 : 12, and 1 : 15, reaction times of 2, 3, and 4 hours respectively. In this study, the best catalyst concentration was 1% w/w oil with the mole ratio of oil with methanol 1: 12, and reaction time of 4 hours with yield of 80.90 %, The results of the characteristics analysis of biodiesel obtained have met the SNI 7182: 2015 standard
