... DESIGN AND CONSTRUCTION OF HYDRAULIC SCISSORS LIFT BY OKOLIE IZUNNA JUDE FPI/HND/MEC/010/001 BEN DAVID IDOKO FPI/HND/MEC/010/002 OKECHUKWU NNAMDI FPI/HND/MEC/010/004 ENEJIYON ABDULMALEEQ FPI/HND/MEC/010/009 AGONOR WILLIAMS FPI/HND/MEC/010/019 BEING A REPORT SUBMITTED TO THE DEPARTMENT OF MECHANICAL ENGINEERING, SCHOOL OF ENGINEERING, FEDERAL POLYTECHNIC IDAH, KOGI STATE IN PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE AWARD OF HIGHER NATIONAL DIPLOMA (HND) IN MECHANICAL ENGINEERING 2011/2012 SESSION CERTIFICATION We the undersigned hereby certify that this project was carried out by the under listed students. OKOLO IZUNNA JUDE FPI/HND/MEC/010/001 ____________________________ BEN DAVID IDOKO FPI/HND/MEC/010/002 ____________________________ OKECHUKWU NNAMDI FPI/HND/MEC/010/004 ____________________________ ENEJIYON ABDULMALEEQ FPI/HND/MEC/010/009 ____________________________ AGONOR WILLIAMS FPI/HND/MEC/010/019 ____________________________ Mechanical Engineering Department under the supervision of Mr. Bingfa Bongfa. I certify that the work is adequate in scope and quality for the partial fulfillment for the award of Higher National Diploma (HND) in Mechanical Engineering. ___________________________ _______________________ ENGR. O. Y. USMAN MR. BINGFA BONGFA Head of Department Supervisor APPROVAL PAGE This project work titled design and construction of hydraulic scissors lift has been read...
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...There are several key components to the composition of hydraulic oil that must be noted. The most prominent property of hydraulic oil is that which pertains to its viscosity, in other words its viscosity and viscosity index, this is because these two aspects contained in this one property affect many systems and include but are not limited to; sealing, lubrication, pump efficiency, and rate of contamination. Another property would be the fluids low compressibility as this aspect of the fluid allows it to perform the fluids main and key function, act as a medium for power transfer and control, though in that regard there is many other properties involved like fast air release and low volatility but overall low compressibility is the most prominent. Last but not least of the most important properties of hydraulic oil is a compilation of its many lubrication functions derived from its anti wear , cleanliness, demulsibility, hydrolytic stability, and corrosive control qualities. Despite the fluids own cleanliness properties many hydraulic systems fall prey to contamination. This is usually due to human error itself usually in the form of placing new hydraulic oil barrels into the system without properly filtering it beforehand as new oil is usually nowhere near clean enough to be placed in the system. Other forms of contamination include Built –in where during the systems assembly or testing some form of contamination was introduced, and Ingressed contamination where air condensation...
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...What is Hydraulic Fracturing? Hydraulic fracturing is the process of drilling for natural gas and oil underneath the ground. Hydraulic fracturing is a procedure that can increase the flow of oil or gas from a well (what is Fracking, 2013). Hydraulic Fracturing Process It is done by pumping liquids down a well into subsurface rock units under pressures that are high enough to fracture the rock and release the gas. The goal is to create a network of interconnected fractures that will serve as pore spaces for the movement of oil and natural gas to the well bore (King, 2013). Hydraulic Fracturing in the United States, Europe and South America The first use of hydraulic fracturing to stimulate oil and natural gas wells in the United States was in the 1940s (King, 2013). This process used in nine out of 10 natural gas wells in the United States. In December 2012 the British government gave the approval for exploratory hydraulic fracturing to extract natural gas from shale-rock deposits (Reed, 2012). In 2011, a horizontal well with multi-stage hydraulic fracturing was completed in the Neuquén Basin of Argentina. It was the first horizontal gas shale well and the deepest shale gas well in South America (Halliburton, 2013). Economic Impact/Concern of Hydraulic Fracturing According to the Global Fund Exchange, there are a number of environmental concerns related to hydraulic fracturing. Hydraulic fracturing fluids...
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...Name Tutor Course Date Title: Hydraulic Fracturing POPULATION/PROBLEM/PROCESS Hydraulic fracturing or fracking, as it is commonly referred to, is a method of oil and gas extraction that has been in use for well over 60 years. This is a method that is centered on injecting a mixture of a proppant such as sand, chemicals and water into an oil or gas well. The injection of this fluid is responsible for creating fractures in the pre-drilled well, thereby allowing greater permeability of the stone. The small cracks in the stone are filled by the proppant, in this case sand, to keep them open even after the water flows back out. Among the chemicals used are gelling agents. The purpose of these gelling agents is to ensure that the proppant remains suspended in the mixture, and does not sink. Other chemicals in the mixture increase the fracturing ability of the solution. Once this has been achieved, the small pores and air spaces between the rocks are filled with the proppant and cause the natural gas trapped within the natural spaces to escape. This gas is then collected. The use of horizontal hydraulic fracturing has also been instrumental in the extraction of oil. The use of horizontal hydraulic fracturing has increased profitability and efficiency in the extraction of oil, when compared to the predominantly used vertical drilling methods. By increasing the extraction of natural gas from sources that were originally considered unproductive, this process has resulted in more...
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...ADVANTAGES OF HYDRAULIC LIFT There are some advantages over other high production systems by using hydraulic lift. One of them is the ease in changing the volume of fluid being pumped. A wide range of crosshead plungers and liners are available to change the volume of power fluid pumped. Another advantage includes the high volume of production that the pump will handle each day. With the free pump, the lease pumper or a field technician can also change the pump without the need for calling out a well servicing crew and unit. Hydraulic lift are practical only in low-rise buildings due to the need for a tube that penetrates the soil to a depth equal to the height of the building. But, instead, are very safe, because they can not fall. Hydraulic lifts provide much security. In case of any fault in the driving group, or broken pipes, a valve at the entrance of the cylinder, regulates the output of oil to the cabin down gently. A battery is enough to feed an emergency descent system. Because hydraulic elevators descend by gravity engine stopped, by simply opening a low-power solenoid enclosures passenger can be prevented due to faulty power supply. In a hydraulic elevator will get very soft starts and stops. As the whole system works in oil bath, wear is minimal, and its superior performance to that of electric elevators in more than 10%. The passage space utilization is optimized, because the hydraulic elevators do not carry balances.The lifting load is transmitted directly to...
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...Types of Hydraulic Fluids To assure proper system operation and to avoid damage to nonmetallic components of the hydraulic system, the correct fluid must be used. When adding fluid to a system, use the type specified in the aircraft manufacturer’s maintenance manual or on the instruction plate affixed to the reservoir or unit being serviced. The three principal categories of hydraulic fluids are: 1. Minerals 2. Polyalphaolefins 3. Phosphate esters When servicing a hydraulic system, the technician must be certain to use the correct category of replacement fluid. Hydraulic fluids are not necessarily compatible. For example, contamination of the fire-resistant fluid MIL-H-83282 with MIL-H-5606 may render the MIL-H-83282 non fire-resistant. Mineral-Based Fluids Mineral oil-based hydraulic fluid (MIL-H-5606) is the oldest, dating back to the 1940s. It is used in many systems, especially where the fire hazard is comparatively low. MIL-H-6083 is simply a rust-inhibited version of MIL-H-5606. They are completely interchangeable. Suppliers generally ship hydraulic components with MIL-H-6083. Mineral-based hydraulic fluid (MIL–H-5606) is processed from petroleum. It has an odor similar to penetrating oil and is dyed red. Synthetic rubber seals are used with petroleum-based fluids. Polyalphaolefin-Based Fluids MIL-H-83282 is a fire-resistant hydrogenated polyalphaolefinbased fluid developed in the 1960s to overcome the flammability characteristics of MIL-H-5606...
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...Power Control Unit, Hydraulic - Description Hydraulic power control units (typically referred to as PCUs) are used to position primary (or secondary) flight control surfaces. PCUs are a single assembly (i.e., single part number) that combines individual hydraulic components into an assembly. PCUs perform two critical functions: (1) they position the flight control surface in response to mechanical or electrical commands, and (2) they represent a principle structural element capable of withstanding flight loads and providing protection against flutter (unsteady, aerodynamic loads). The requirements of these two functions make PCU design a challenging task. At the heart of PCU is a servovalve and an actuator (servo actuator). The servovalve can be controlled by a flapper nozzle, jet pipe, solenoid, torque motor or mechanical linkage. Some PCUs contain only a servo actuator. However, PCUs often contain other components to meet performance and failure mode performance criteria. Other components typically found in PCUs are shutoff valves, pressure relief valves, input filter, check valves, and compensator. Another component that is often part of a PCU is one or more servos whose control is based on some performance criteria. These servos can be positioned electronically or by hydraulic pressure (where loss of hydraulic pressure allows a spring to position the servo). A simple PCU is shown in Figure 1. Figure 1 Simple PCU Diagram This PCU shows the pressure input going through...
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...The development of hydraulic fracturing regulation saw significant changes in the late 20th century. There had been state regulations throughout the 1940’s, but these were mostly concerned with surface water contamination. By the 1950s, however, landowners were complaining of contamination of drinking water, and state oil agencies discovered contaminated acquifers in the 1960’s. These complaints and the subsequent lawsuits in the 1960’s led to the beginning of state regulations on hydraulic fracturing. The Texas Water Pollution Board, for example, was founded in 1961, and was the state’s first true pollution-control agency. High profile cases like when an industrial waste injection well at Hamermill Paper released waste into Lake Erie and affected...
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...Fracking or Hydraulic fracturing is defined as a method of maximizing output at natural gas and oil wells through breaking formations of rock. This technique is done under a fluid injection with a high pressure. Over the past two decades, there have been many legal issues attributed to hydraulic fracturing. Most of the legal issues have risen due to environmental debates that have rose due to the process. This is because in order to increase the output of gases in the wells, chemical toxins that are harmful to aquatic life and human beings are released to the environment. There are also many risks that arise during and after the process leading to issues of negligence. State regulations have enacted laws and policies that prevent any harm caused by negligence from affecting the environment. Therefore, this paper contains a discussion of the legal issues that are raised by hydraulic fracturing process. Fracking and the safe drinking water Act issues is the most common discussed legal issue. Many arguments have risen due to the quality of underground water since it is contaminated with chemicals thus endangering aquifers. Some concerns raised involve contamination of drinking water since most of it comes from the wells. This water can be dangerous to the ecosystem if it enters drinking water wells. Secondly, management of the contaminated water from fracking wells is also a legal concern. State regulation should ensure that the extraction of the natural gas does not have detrimental...
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...Hydraulic Fracturing or Hydro Fracking is a highly debated topic, even though it isn’t a new technology. In 1880 it was used as a way to enhance production to reactivate oil and gas. In the 1980’s experiments were performed in Texas in a large shale deposit called “Barnett Shale”. Today Hydrofracking is performed on shale deposits to remove fossil fuels. Even though hydro fracking has been around since 1860 the technique to get natural gas from shale is actually a new technology. There is much debate on whether hydrofracking is good or bad for the environment. Hydrofracking is the process of using fluids and water that is pumped at an extremely high pressure to crack or fracture the shale to get to the fossil fuel deposits inside of it. To get to the shale, companies have to drill deep into it before they can use the water to fracture it....
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...Land Use Control in Hydraulic Fracturing Prepared for Katherine Wears, Phd. Professor and Assistant Dean at Clarkson University Prepared by Martin Sable Student, Masters in Engineering Management at Clarkson University August 10, 2014 Executive Summary This paper will review the process of hydraulic fracturing, its effects on the environment, and the opposition against the practice. A chronological discussion of lobbying activities and regulatory actions will be discussed, with a particular focus on land use control. A discussion of some of the past and potential future litigation on land rights related to the subject will be covered. The paper will end with the author’s opinion on the subject and of the potential future of the industry. Background Hydraulic Fracturing is a method of simulating well production in both natural gas and oil wells. It was first introduced in 1947, and was adopted for commercial applications as early as 1949.15 The process involves drilling wells deep into ground rock formations, then injecting fluids at high pressure into the ground. The high pressure causes fracturing of the rocks that release gas or oil into the wells that may then be extracted. In 1968 high-volume hydraulic fracturing (HVHF) was introduced, in an effort to tap into the large shale basins containing deposits of natural gas. The main difference between this and conventional hydraulic fracturing is tremendous volume of fracturing fluids that are pumped...
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...Exhibition Center Singapore, July 14-17, 2009 A Virtual Reality Operator Interface Station with Hydraulic Hardware-in-the-Loop Simulation for Prototyping Excavator Control Systems Mark D. Elton, Aaron R. Enes, and Wayne J. Book, Fellow, IEEE Abstract— A multimodal operator interface station is developed to display a realistic virtual reality depiction of a compact excavator performing general digging tasks. The interface station includes engine audio feedback and a near life-size operator display attached to a full-size cab. The excavator dynamics are determined by models of the hydraulic system, the linkage system, and the soil digging forces. To maximize the fidelity of the hydraulic model, certain “virtual” components of the model are replaced with real-time hardware-in-the-loop (HIL) simulations of the actual hardware. HIL simulation is done in a geographically isolated facility, with Internet based communication between HIL and the Remote Operator Interface. This is the first reported high-fidelity operator interface to be combined with remote hydraulic HIL simulations. I. I NTRODUCTION Hydraulic hardware has undergone a great evolution in recent years, evolving from purely hydro-mechanical devices to electro-hydraulic systems controlled by microprocessors. The use of electronic controllers opens the door to improving dynamic performance and enhancing traditional hydraulic off-highway construction machines with new features such as increased energy efficiency, improved...
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...HYDRAULICS LAB #1 The objective of this lab is to test the fluid flow provided by the power unit at various discharge pressures, and create a power unit characteristic curve. 1. Build on the trainer the hydraulic circuit shown in the figure below, using the components listed here. hydraulic power unit (2) pressure gauges flow control valve (FCV) – simulated load flow-meter Page 1 of 2 2. Initial setup: a. Fully close (CW) the FCV, and fully open (CCW) the pressure relief valve on the power unit. b. Start the power unit, and slowly adjust the pressure relief valve until pressure gauge P1 reaches 50 bar. Let the unit run for a few minutes then check and adjust P1 if necessary. c. Do not touch the pressure relief valve for the remainder of the lab. d. Fully open the FCV. 3. Test: a. Record the pressures P1, P2 and the flow rate under the “Min.” column in the table below. b. Slowly turn the FCV CW, adding a simulated load to the system. When the pressure at P1 increases to 15 bar, stop and record pressure P2 and the flow rate. c. Repeat for all columns listed in the table. The final column, listed as “Max Pres.” should be run with the FCV fully closed. Note the sound of the power unit during this test. You should detect changes in tone as the load (pressure) is increased. P1 Pressure (bar) P2 (bar) Flow Rate (lpm) Min * 15 20 25 30 35 40 45 46 47 48 49 Max. Pres. * minimum pressure attained, with flow control fully open HYDRAULICS LAB #1 Page 2 of 2 Lab Report: ...
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...Mechatronics BASIC MEASUREMENT TOOLS MTX 103 Fall 2 Credits 11 hours of lecture - 22 hours of lab Fundamentals of measurement tools. Topics include basic measurement, S.I. and U.S. customary measurement, precision measurement tools and dimensional gauging. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. BASIC HYDRAULICS MTX 105 Fall 2 Credits 11 hours of lecture - 22 hours of lab Fundamentals of hydraulics. Topics include hydraulic power systems, hydraulic circuits, principles of hydraulic pressure and flow and various types of hydraulic valves. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. BASIC PNEUMATICS MTX 107 Fall 2 Credits 11 hours of lecture - 22 hours of lab Fundamentals of pneumatics. Topics include pneumatic power systems, basic pneumatic circuits principles of pneumatic pressure and flow and pneumatic speed control. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. ELECTRIC MOTOR CONTROL 1 MTX 110 Fall 4 Credits 22 hours of lecture - 44 hours of lab Fundamentals of electric motor control. Topics include electrical safety, control transformers, overload protection, ladder logic, control relays, electronic sensors, and other topics related...
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...Republic. • The nature of competition in the global market of products & services that SH a.s. offering. We have to evaluate all these facts and to present a strategic technology management plan of action. Main Contributing Issues: Following are the major contributing issues or they are basically showing the evaluation of all the facts that must be consider before adopting any strategic plane. • They are lacking in capital & competition for R&D efforts in hydraulic technology, although they are able to full fill the desired innovations of customers as they had done on very selective scale in case of heavy hydraulics. • • They are entirely restructured in1997 and start offering services and maintenance along with major sales but future of their clients using such offers is also uncertain. • International competitors from Germany, US and from other western countries all are introducing computer based automated technologies but they are not offering such technologically advanced products. • Light hydraulic applications also moving towards automated advanced technologies with lean and fragile processing having lesser processing steps and higher automated work, but they are still offering old systems. • Other competitors like German & American are entering in Czech market with broad lines and advance technologies of lubrication technologies. Proposed Solutions: In this case the problem is not single directional or very clear it’s a multiple mix and complex bunch...
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