Engineering Physics


Volume 5, Issue 2, December 2021

  • Evaporation Reduction Test of Premium Unleaded Fuel by the Smart Floating Roof Method in a Horizontal Cylindrical Tank

    Bagui Emmanuel, Gbaha Prosper, N. Guessan Kotchi Rémi

    Issue: Volume 5, Issue 2, December 2021
    Pages: 15-28
    Received: 21 June 2021
    Accepted: 26 July 2021
    Published: 9 August 2021
    Abstract: The floating roof is originally the device that is easily used in a vertical cylindrical storage tank for volatile products. It covers the evaporative surface which remains constantly circular, regardless of the level of the fluid in the tank. However, in a horizontal cylindrical tank, the extent and shape of the free surface of the fluid, the seat... Show More
  • Principles of Wheelset Hunting and Construction of Total Solution to Hunting

    Jack Youqin Huang

    Issue: Volume 5, Issue 2, December 2021
    Pages: 29-39
    Received: 20 July 2021
    Accepted: 2 August 2021
    Published: 12 August 2021
    Abstract: Wheelset hunting is a motion with two degrees of freedom. The second degree of freedom of hunting is investigated in this paper. Rolling radius difference is commonly understood as the root cause of wheelset hunting. Normally, hunting will begin as soon as the truck begins to move. Rolling radius difference will initiate the hunting and can only be... Show More
  • Maser-rays Based on Synchrotron Radiation-Total Reflection X-ray Fluorescence (SR-TXRF)

    Orlando Elguera Ysnaga

    Issue: Volume 5, Issue 2, December 2021
    Pages: 40-53
    Received: 4 October 2021
    Accepted: 2 December 2021
    Published: 9 December 2021
    Abstract: In 2012, during the experiments performed at LNLS (Brazilian Synchrotron Light Laboratory) based on SR-TXRF measurements of Ormosil films containing phosphotungstates ([PW12O40]3-) was observed an image that could be interpreted as the result of the transition from the incident X-ray beam (packets of photons) to a continuous light beam (set of cont... Show More
  • Modeling and Simulation of a Parabolic Trough Solar Concentrator

    Kpeusseu Angeline Kouambla Epse Yeo, Bati Ernest Boya Bi, Prosper Gbaha

    Issue: Volume 5, Issue 2, December 2021
    Pages: 54-62
    Received: 11 November 2021
    Accepted: 7 December 2021
    Published: 24 December 2021
    Abstract: This work consisted of the mathematical modeling of a parabolic trough concentrator. To this end, a heat balance has been established for the different parts of the parabolic trough concentrator, which are the heat transfer fluid, the absorber and the glass. This allowed us to establish a system of equation whose resolution was done by the finite d... Show More