Some experiments with the U.S.A. Standard Evaporimeter

The U.S.A. Standard Evaporimeter is in regular usc at a number of selected AgriculturalFarms in the Indian States and in the Observatories of the India Meteorological Department . Theevaporimeter consist. of a cylindrical reservoir 48” in diameter and 10” high supported on awooden frame 4” high.

Monitoring of Fuel Height Gauge at IoT-Based Gas Stations

The increasing number of motor vehicles has been increasing the fuel demands, especially the demands for ‘pertalite’ (product of fuel) and ‘pertamax’ (product of fuel) fuels. These fuels are usually placed in a cylindrical reservoir at an SPBU (gas station) that is located below the ground surface. To find out the remaining volume of BBM (fuel), gas station attendants usually check it manually by dipping the meter stick to the bottom of the reservoir. Then, the boundary surface of the fuel is used as a reference in reading the meter value. Because it was considered to be an ineffective measurement, an Android-based electronic media was created to make it easier. This tool uses the HC-SR04 ultrasonic sensor to detect the fuel height level in the reservoir. To show the results, the Blynk application is applied for the user interface. To support the IoT (internet of things) system, NodeMCU is used that is included with the WIFI module so that it can be connected to the internet. Based on the tests that have been done, the HC-SR04 ultrasound sensor has good accuracy and can monitor the height levels of fuel in real-time.

Simulation of the Circulating Motion of the Working Medium and Metal Removal during Multi-Energy Processing under the Action of Vibration and Centrifugal Forces

The rotational motion of the medium granules under the influence of an impeller installed in the bottom of a cylindrical reservoir is considered. The dependencies of the circulation velocity of the abrasive granules, as well as the dependence of the pressure in the circulation flow of the granules on the radius of the vibrating machine cylindrical reservoir for different speeds of the impeller rotation are obtained. Furthermore, the velocities of the abrasive granules at various distances from the center of the cylindrical reservoir of the vibrating machine have been determined. The amplitudes of the tangential and radial components of the velocity of movement of pseudo-gas from abrasive granules are obtained. The total pressure on the surface of the processed part and the average velocity of the abrasive granules colliding with it are determined. The graphical dependencies of the integral metal removal on the amplitude and frequency of oscillations of the walls of the vibrating machine reservoir are given for various values of the angular velocities of the impeller rotation.

Finite Element Application in Reservoir Deformation Analysis (Pilot Phase 2)

Finite element method (FEM) is a numerical technique for solving Engineering problem and Mathematical Physics. Useful problems with complicated geometries, Loading, and material properties where analytical solutions may not be obtained. Some of the complicated problems involving load is a cylindrical Reservoir structures where crude oil is stored in a Tank Farm. This paper demonstrates the use of Finite Element Analysis in above surface cylindrical Reservoir Engineering Structure. The reservoir which has sixteen (16) monitoring station was monitored using reflectorless Total station. This paper is the second phase of our pilot model and we hope to developed this second phase further to cover nine studs. The studs covered ranges from northern part of the Reservoir to the southern parts to further test the application of FEM triangular shaded (Truss) elements.

ANALYSIS OF COMBINED PLATES WITH ALLOWANCE FOR CONTACT WITH ELASTIC FOUNDATION

The paper covers the problems of combined plates with circular base and consisting of a few sections with different laws of thickness variation. Analytical methods of analysis of similar structures are not yet devel­oped. The present work suggests the analytical method for solving of the stated problems, the contact with the elas­tic subgrade is also considered. The above-mentioned approach is shown on the example of the analysis of the bot­tom of the cylindrical reservoir, resting on the elastic subgrade. The inner part of this construction is represented by the ring plate of variable thickness which increases along the direction from the internal boundary. The outer part is represented by the ring plate of the constant thickness. The influence of the elastic basis and the upper part of the reservoir is taken into consideration. The solutions for stresses and deflections of the combined plate are given in closed form in terms of Bessel functions. The conditions of the plate’s sections conjugation are fulfilled.

Finite Element Application in Reservoir Deformation analysis (Part 1)

Finite element method (FEM) is a numerical technique for solving engineering problem and mathematical physics, useful problems with complicated geometries, loading, and material properties where analytical solutions may not be obtained. Some of the complicated problems involving load is a cylindrical reservoir structure where crude oil is stored in a tank farm. This paper demonstrates the use of Finite Element Analysis in above surface cylindrical reservoir engineering structure. The reservoir which has sixteen (16) monitoring station was monitored using reflectorless Total station. This paper is a pilot model and it is hoped to be developed further in two more phases to cover the entire reservoir under study. Only two studs in the North East and South East directions were selected to test the FEM forming a triangular shade (Truss) with three elements. The 2-D horizontal displacement was found to be 0.02 mm, while the vertical displacement was found to be -0.03 mm.

On the simplification of a frequency equation of the natural axially symmetric oscillations of a perfect liquid in a rigid cylindrical reservoir with elastic base

We have simplified the previously received frequency equation of the natural axially symmetric oscillations of a heavy perfect incompressible liquid in a rigid cylindrical reservoir with elastic bases in the form of thin circular plates. The singularity in the frequency equation in the case of the coincidence of mass characteristics of the plates was removed. We have considered arbitrary methods of fixing the contours of the plates and different limiting cases: the degeneration of plates into membranes, absolutely rigid plates, the absence of upper plate (free surface on the liquid), and the case of zero gravity. It has been shown that the frequency spectrum of the coupled axially symmetric oscillations of elastic bases and the ideal liquid consists of two sets of frequencies, corresponding to oscillations of the upper and lower elastic bases, and additional oscillation frequency of a liquid column as a whole.