1.0 Introduction
Valves are mechanical devices that control the flow and gases in the process. They are essential components of piping system that conveys liquid, vapor and gases. They come in variety of material ranging from steel and plastic. There are different types of the valves such as globe, gate, ball, plug and check valve. Each of these valves has different features and functional capabilities. Some valves can self operated (automatically) while the other manually or with pneumatic or hydraulic system. In this report I will talk about the benefits and the useful of the gate valves and the globe valve as well as compare the different between the two valves in term of cost and maintenance.
2.0 Background
Gate Valve and globe valves achieves the important function of controlling the flow; they are installed on the piping and pipeline to straight the flow from one location to another and to prevent losses of the flow. Like the faucets in home plumping system that we observed every day, when it is open the flow is begins to move and speed up and when it close the flow will stop moving. Valves comes in different sizes the smallest one can be weight as 1lb (0.50 kg), while the largest valves can weigh up to 10 tones (9070 kg). Deciding the type of the flow or the gas can lead you and help to determine which valve will be suitable for the process. However the valves can be affecting by several factors such as slurry (mixture of the liquid like water or cement) which required Maintenance permanently to avoid the errors of the reading.
3.0 Technology
This section will describe the functionality of both gate valve and globe valve and also will show the features of each technology.
3.1Gate valve
The gate valve is designed to con...
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...he flow to pass through the pipes. There are different types of the valves with different sizes, and each valve has several features that make suitable for different process. The most important feature is the efficiency.
Globe valves are installed in parallel position not perpendicular like the gate valve, which make it more efficient than the gate valve in services that required frequent operation and when the pressure drop across the valve.
5.0 Recommendation
After studying this report and from the analyzing I recommended to use the gate valves because it’s suitable for the different process and simply operates in fully open and fully close with no pressure drop also its required less maintenance and not expensive, rather then the globe valve which is not recommended where the pressure drop and resistance to flow, it’s preferable only for frequent operation.
Compared to the linear peristaltic pump and rotary peristaltic pump, the 360 degree peristaltic pump runs more slowly at the same performance. As a result, the hoses will have longer lifetime which is economic. Furthermore, the 360 degree peristaltic pump produces less friction due to the unique structure, and therefore less thermal. Especially, the 360 degree peristaltic pump has only a single compression per rotation while the ordinary pumps with numerous shoes or rollers have at least two or more compression per revolution. This means that the design of the 360 degree pump will prolong the lifetime of the tube. At the same size, this design will generate more flow volume (55%) at the same
...fficult to summarize the operations of such a large corporation, but during this report it has been achieved. The reader will be able to understand how one of the leading groups of engineering and construction companies in the world has achieved such a status. Through a brief analysis and explanation of the history, its competitors, its organizational management activities and an evident problem with its solution can the reader fully understand such a complex and active corporation. But being such an active and international corporation, such problems will and do arise. Such a problem in this report is the outflow of many potentially dangerous process fugitive emissions. This significant and imperative problem and be solved by the either switching suppliers of the pipe work or various other components where there are leaks or to implement some sort of software to detect the location of any leaks so they can be repaired quickly. This major problem must be solved quickly and in a cost efficient manner. This report discusses the methods and activities involved in SNC-Lavalin in a professional, yet straightforward manner so all readers can grasp such an interesting Canadian company.
2. Put a rubber-stopper assembly into a 125 mL Erlenmeyer flask. Twist the stopper into the flask's neck until it is tightly secured. Connect the connector and the gas pressure sensor valve, then twist in a clockwise motion. Prevent gas leakage by covering the stopper and flask's top with parafilm. Twist the white valve until it is perpendicular to the valve stem in order to close the two-way valve.
... also include a few maps to help better demonstrate where each part of the pipeline is located.
1.Intake: The intake valve opens allowing fresh oxygen rich air mixed with fuel to enter the cylinder.
The automatic fire sprinkler system was one of the earliest sprinkler systems placed into effect. The origin of the modern day automatic sprinkler system dates back to the early 1800’s. The first automatic sprinkler system was created in England in the 1806 by John Carey. It consisted of a pipe with valves held closed by counterweights attached by string. When flames burned through the string the counterweight dropped to the floor, which opened the valve that released the water and extinguished the fire. As the 1800’s progressed, the basic pipe system for sprinklers was becoming more prevalent across England. It began to pop up in textile mills all through out the country. In 1864, as sprinkler system use grew, Major Stewart Harrison of the 1st Engineer (London) Volunteers invented the first automatic sprinkler head. A few years later two gentlemen by the names of Henry Parmelee of Newhaven, Connecticut, and Frederick Grinnell of Providence, Rhode Island, added to the sprinkler head to give it a more practical application. Parmelee took the automatic sprinkler head and added to it a fusible link that broke at about 160oF. This allowed the system to control which heads broke so the whole system wouldn’t drown the whole structure in water, it would only release where there was sufficient heat to break a head. Grinnell invented a head that could withstand higher water pressures without break as well as distribute water more evenly. Each of these inventions increased the efficiency of the systems greatly. Now in today’s modern fire protection era, automatic sprinkler systems are used to protect everyday buildings around the world. It is most commonly in commercial use buildings. This includes but is not limited to schools, hospitals, ...
chamber used as a control will be used to measure any changes due to air
This chart shows the relationship between the fanning friction factor and the Reynolds number over a wide range of flow rates, from which the roughness parameter (e/D) for the piping system can be estimated.
... temperature of 112 0C also and a pressure 2.5 bar. Cooling water is used to condense the vapor exiting column. Remaining methane and hydrogen are separated in reflux drum where the vapor stream is combined with other gases streams. The overhead of first and second separator are combined to form fuel gas. The liquid stream exiting in the bottoms of the reflux drum is pumped at pressure of 3.3 bar for discharging pressure. The pump stream is separated in two streams. One stream is to feed to tray one of the column and the other one stream is cooled down to 38 0C in heat exchanger. Then, the cooled product stream is sent to storage.
Figure 1: Simple batch homogenous reactor. [Fogler, H. S. (2010, November 22). Essentials of Chemical Reaction Engineering: Mole Balances. Retrieved April 24, 2014, from Pearson Education: http://www.informit.com/articles/article.aspx?p=1652026&seqNum=3]
113-117, 23, No. 1 -. 1, pp. 27-31, Feb, 2003. 8. What is the difference between a.. C. Shock, “Drip Irrigation: An Introduction,” Oregon State Univ., Oregon, Rep. EM 8782-E, 2001. 9.
• Pipeline: pipeline transports unrefined petroleum and characteristic gas from oil fields to refineries and afterward to the core of the dial.
Pipeline Transportation is a massive mode of transportation for over one hundred countries around the world. As of 2014, there is approximately 2,175,000 miles of pipeline, enough to wrap around the Earth 87 times. Of those millions of miles, 64% of the world’s pipeline is in the United States alone. Pipelines are mostly used for the transportation of both crude and refined petroleum, fuels such as oil, natural gas, and biofuels, and other fluids like water and sewage. Even alcohol is sometimes transported using pipelines. Pipelines are used all around us. Miles of them are running continuously below our feet on a daily basis. The creation of pipeline transportation has been an incredibly help to society both directly and indirectly.
Third, the liquid will enter to the expansion valve with the higher pressure and leaves with the low pressure.
Water tap has become an important part for household, business, and also buildings. Modern water tap nowadays are well engineered and can long last but depend on the types of the materials. Many people would prefer to replace the design when remodeling. There are many reasons that causes failure modes for water tap.