Vol 11 Issue 3 July 2023-September 2023

Abstract: As the backbone of the metro transport system in large cities, the passenger flow is huge, such as the Shanghai Metro, Beijing Metro daily average passenger flow in more than ten million people. Gate as a human-machine system equipment in and out of the station, switching gate frequency is high, especially during the peak period of passenger flow, the gate's operation pressure is greater, for the rapid passage of passenger flow has a certain pressure. Through the reverse thinking, it is proposed that the default state of the gate is open, and the corresponding passage signal is projected through the projection lamp to indicate whether the passengers can pass or not. By making this optimisation method into a practical demonstration model to prove the practical operability of the idea and test the ideal effect to a certain extent. This can greatly improve the passage efficiency and passenger experience, reduce the wear and tear of the equipment, prolong the life of the equipment, and at the same time, reduce energy consumption.

Keywords: rail transit; reverse thinking; gates; high efficiency; energy saving; humanization.

Title: Study of Optical Speed Gates for Railway Transportation

Author: Chen Yihui, Ma Ziyan, Chen Wenjie

International Journal of Thesis Projects and Dissertations (IJTPD)

Vol. 11, Issue 3, July 2023 - September 2023

Page No: 27-33

Research Publish Journals

Website: www.researchpublish.com

Published date: 06-September-2023

Abstract: The project examined the optimization, design, and automation of small-scale production of biodiesel from waste cooking oil (WCO). It covered optimization proceedings (feedstock pretreatment and conditioning) that were aimed at ensuring maximum biodiesel yield from the WCO with fewer non-desired by-products such as glycerin through the esterification reaction reactions using sulphuric acid.

It is noteworthy that the design generated can be used on different feedstocks. (With high Free Fatty Acids [FFA] and those without FFA). Pretreatment can be run concurrently with the Alkali catalyzed process or the processes independently of each other.

Being a small-scale production, some recovery units such as the catalyst recovery unit were not employed given the economic infeasibility.

The main transesterification reaction under implementation was the alkali-catalyzed process owing to its easily attainable reaction conditions and reaction time in contrast with the supercritical method and acid-catalyzed method whose major downfalls are extreme reaction conditions and longer reaction times respectively.

The use of simulation program DWSIM version 8.3.5 (Classic UI, 64-bits) was employed to develop the process plant’s design. The simulation was carried out at different FFA levels using a similar model developed in all cases.

The data generated from the simulation was analyzed using MATLAB version R2022b and graphs describing relationships were generated.

Finally, the automation of the process with aid of valves, a heater and heat exchangers.

Keywords:  optimization, design, automation, and simulation.

Title: OPTIMISATION, DESIGN, AND AUTOMATION OF A SMALL-SCALE BIO-DIESEL PRODUCTION PLANT

Author: Kitimbo Mercy, Kamua Simon, Pacoto Livingstone

International Journal of Thesis Projects and Dissertations (IJTPD)

Vol. 11, Issue 3, July 2023 - September 2023

Page No: 1-26

Research Publish Journals

Website: www.researchpublish.com

Published date: 05-August-2023