Premium Essay

Pumps on Board Ship

In:

Submitted By mdnoor
Words 508
Pages 3
* Learning Objective :

Know the marine pump, types, design features and operation on board.

* Specific Learning Objectives :

• State the design features of centrifugal and positive displacement pumps.
• State the uses of various pumps onboard.
• Explain the pump types and principles of operation of marine pump. • State and explain the operation of each components of the following pump;
Reciprocating pump.
Screw pump.
Gear pump.
Centrifugal pump
• With the aid of diagram, explain the type and working principle of the gland seals.
• State the requirement of relief valves that may be fitted on marine pumps.
• State the requirement of air vessel that may be fitted on marine pumps. * Key Functions of Pumps :

• Raise the liquid from one level to another • To give it a high velocity
• To transport it through a pipe
• To move it against resistance
• To force it through a hydraulic system against various resistance

* Main Classification :

• Positive Displacement pumps
• Dynamic pressure pumps
(rotor-dynamic pumps or nonpositive displacement pumps)

* Positive Displacement pumps :

• This is one in which a definite volume of liquid is delivered for each cycle of pump operation, regardless of the resistance offered. In other word in which one or more chambers are alternately filled then emptied. • These include reciprocating, gear, screw, etc …They do not required a priming device, in fact they may used as priming devices. • In general they would be used for small to medium discharge rate, they can pump fluids of a wide range of viscosity and can develop high-pressure differentials if required. • If the outlet is completely closed, either the unit driving the pump will be stalled or pump or pipe itself will break or burst, thus safety or relief valve are fitted on it.

* Positive Displacement

Similar Documents

Free Essay

Marine Environmental Impact and Energy Use

...emissions. The International Maritime Organisation (IMO) predicts a 250 percent rise in emission levels as a result of expanding sea transport, if suitable energy efficiency policies are not implemented. Yet legislation has in many respects by-passed the shipping sector as reflected by its exclusion from international agreements such as the Kyoto protocol. Even though shipping is recognised as the cleanest form of transporting goods, with the least damage per tonne of cargo, ship exhaust emissions are regarded as the industry's biggest polluter. So although the marine industry has consistently resisted taking any significant measures to reduce its greenhouse gas emissions, it now looks like it will finally bow to pressure, as many governments now want to include shipping in future agreements. As such IMO is implementing, by 2015, new sulphur emission targets for marine fuel oil. IMO has also demonstrated a potential to reduce CO2 emissions by 25 to 75 percent for newbuilds, as well as for ships already operational, simply through an increased focus on energy efficiency. Improved fuel use An...

Words: 2136 - Pages: 9

Premium Essay

Fire Prevention and Fire Fighting on Board a Ship

...INTRODUCTION Every year more and more ships are lost through fire and collision. Shipboard fire alone, however, results in more total losses of ships than any other form of casualty. The most common causes of shipboard fire are: maintenance, burning and welding are responsible for nearly 40 percent of all outbreaks. Smoking leads to countless fires that break out when no one expects. Lack of attention, spontaneous combustion and electrical faults are the major causes. The engine room is at special risk from flashbacks in oilfired boilers, leaky pipings carrying oil, overheated bearings and even the accumulation of rubbish (oil rags, dirty oil, tins of oil, etc.). According to Mikhail Grigorevich Stavitskii 1983, if most shipboard fires can be prevented, then who is responsible for preventing them? The answer is that fire prevention is the shared duty of each and every member of the crew. No fire prevention effort or program can be successful unless it involves everyone aboard ship. We have noted that every crewmember is responsible for the fire aboard ship. Similarly, every crewmember has a role in the ship's fire prevention program. Because attitude is so much a part of the fire prevention, it is also the most important part of the fire prevention program. So as with the Fire Figthing, if there is a fire aboard ship, everyone aboard ship must form the emergency response team. According to Lobo Gruppe, Oslo 1987, the emergency response team are consist of the following...

Words: 3686 - Pages: 15

Premium Essay

International Trade Logistics Ldo1

...INTERNATIONAL TRADE LOGISTICS & DOCUMENTATION ASSIGNMENT- Logistics details of Light Diesel Oil HS Code - 27101940 (Individual Assignment) Introduction Light diesel oil (LDO), a class of diesel whose density relatively light. It falls under class C category fuel having flash point above 66 degree Celsius. LDO is widely used in automobile and engines with an rpm less than 750, tractor and the diesel engine for high speed diesel engine fuel ships, mines, power generation, drilling and other equipment. LDO, is a blend of components from the distillation process of diesel. LDO is also referred to as distillate fuel or marked oil since it is marked with a coloring substance. A number of properties must meet standard requirements for a fuel to be classified as LDO. List of properties mentioned below: • The water content of LDO must not exceed 0.25 percent of volume. The viscosity of LDO at 40 degrees Celsius must be a minimum of 2.5 centistrokes and a maximum of 15.7 centistrokes. LDO is required to have a Sulphur content of less than 1.8 percent by weight. Sediment levels must be below 0.1 percent by weight. Ash content must be less than 0.02 percent by weight. LDO must contain less than 1.5 percent carbon residue. The cetane number of LDO is 45. This measure of combustion quality can be up to 100 but most premium diesels are around 60. A higher cetane number means the fuel is of higher quality. The pour point is the lowest temperature that the fuel will flow. This quality...

Words: 2380 - Pages: 10

Premium Essay

Technology

...Navy Nagar, Naval Station Karanja PO-NAD Karanja, Uran , Dist-Raigad, Maharashtra 400 704 Phone: 9869757576 Career aim :- After serving 20 years in Indian Navy, as Master Chief Engine Room Artificer, I am due for retirement from the Naval Service on 31 July 09. Therefore I am looking for a new position which will build on my skills and experience in Management, Operation and Maintenance of Gas turbine based Machineries, Power Plants and allied auxiliaries systems, and allow me scope for upward movement. 1. Educational/ Technical Qualifications: Inter Mediate : UP State Board. Diploma in Mechanical Engineering : INS Shivaji, Centre of Marine Engineering Technology, Lonavla, Certificate issued Maharashtra State Technical Education Board Graduation : CH-Charan Singh university Meerut. ❖ Diploma in safety officer : National institute of security 2 Courses Undergone • Method Course (Educational Psychology : Naval Institute of Educational & Teaching Techniques Training Technology (NIETT), Naval Base Kochi, Kerala. India • Nuclear Biological Chemical Defense : INS Shivaji and Damage Control • Advance Leadership and : INS Agrani, Coimbatore, Management course Tamil Nadu, India. ...

Words: 509 - Pages: 3

Premium Essay

Hrmt Case

...decisions During the implementation of OGV6. OGV6 is focused on reducing oxides of nitrogen (NOx), particulate matter (PM), and sulfur oxides (SOx). Co‐benefits and penalties associated with Carbon dioxide (CO2) are listed for completeness. The implementation of the San Pedro Bay Ports’ (SPBP) Clean Air Action Plan (CAAP) measure OGV6 which focuses on the introduction of ECS into the fleets of ships that calls the Port of Long Beach (POLB) and the Port of Los Angeles (POLA). The goal of the measure is to encourage existing ships to meet or achieve better than the International Maritime Organization (IMO) MARPOL Annex VI marine engine Tier 3 emission limits. This will reduce emissions associated with the ships as they transit the region during arrivals and departures. Introducing ECS can have co‐benefits, such as alternative compliance with federal, state, and CAAP measures. ECS can be divided into the following major categories: * Engine technologies * Engine support technologies * After-treatment technologies * Alternative fuels * Alternative supplemental power systems * Ship-related efficiencies While several of these technologies have their basis in the stationary source (power plants, refineries, etc.) and land‐side mobile source arenas, the marine environment poses some significant challenges. These include variable engine loads, a corrosive sea environment, low engine loads brought about by vessel speed reduction (VSR) programs, onboard space limitations and...

Words: 1776 - Pages: 8

Free Essay

Fire Prevention and Fire Fighting on Board a Ship

...This unit involves the basic skills and knowledge required to prevent, fight and extinguish fires on board an ocean-going commercial vessel.This unit incorporates the content of the previous two units TDMMF901A Fight and extinguish fires and TDMMF1201A Minimise the risk of fire and maintain a state of readiness to respond to emergency situations involving fire as the content applied to ocean-going vessels. It aligns with the AMSA approved course: SC002 ? Fire Prevention and Firefighting. | Unit Sector | Operational Quality and Safety | Pre-Requisites | The unit may be assessed in conjunction with other units that relate to the functions of the occupation(s) concerned. | Performance Criteria | 1 Carry out fire minimisation procedures 1.1 Fire hazards on board vessel are identified and action is taken to eliminate or minimise them 1.2 Responsibilities for checking fire prevention equipment and systems are fulfilled and appropriate action is taken to ensure that they are operational 1.3 An awareness and understanding of the causes of fire and its minimisation is maintained through participation in fire drills and related instructional programs 1.4 A state of readiness to respond to fire emergencies is maintained at all times 1.5Where applicable, correct techniques are applied for the setting up of foam making equipment to extinguish B Class fires on board a vessel2 Respond to emergency situations involving fire 2.1 Emergency situations involving fire are correctly identified...

Words: 2621 - Pages: 11

Free Essay

Ship

...answered affirmatively YES/NO. If an affirmative answer is not possible, the reason should be given and agreement reached upon appropriate precautions to be taken between the ship and the terminal. Where any question is not considered to be applicable, a note to that effect should be inserted in the remarks column. See ISGOTT Guidelines for Completing the Ship/Shore Safety Check List for more detail descriptions behind each specific question in below matrix. The presence of YES/NO in the columns "ships" and "terminal" indicates that checks shall be carried out by the party concerned. The presence of the letters A, P and R in the column "code" indicates the following: A The mentioned procedures and agreements shall be in writing and signed by both parties. P In case of a negative answer, the operation shall not be carried out without the permission of the Port Authority. R Indicates items to be re-checked at intervals not exceeding that agreed in the declaration. Items marked R to be confirmed checked with sign/time each they are checked. PART A – Bulk Liquid General – Physical Checks |Bulk Liquid - General |Ship |Terminal |Code |Remarks | |1 There is safe access between the ship and shore |...

Words: 1912 - Pages: 8

Free Essay

World Shipping Council Partners in Trade

...Best Management Practices for Protection against Somalia Based Piracy InterManager WORLD SHIPPING COUNCIL PARTNERS IN TRADE BMP4 Best Management Practices for Protection against Somalia Based Piracy (Version 4 – August 2011) Suggested Planning and Operational Practices for Ship Operators, and Masters of Ships Transiting the High Risk Area i Printed August 2011 ISBN: 978 1 85609 505 1 Terms of Use The advice and information given in this booklet (“Booklet”) is intended purely as guidance to be used at the user’s own risk. No warranties or representations are given nor is any duty of care or responsibility accepted by the Authors, their membership or employees of any person, firm, corporation or organisation (who or which has been in any way concerned with the furnishing of information or data, the compilation or any translation, publishing, supply of the Booklet) for the accuracy of any information or advice given in the Booklet or any omission from the Booklet or for any consequence whatsoever resulting directly or indirectly from compliance with, adoption of or reliance on guidance contained in the Booklet even if caused by a failure to exercise reasonable care on the part of any of the aforementioned parties. W IT H E RB Y A B LI SHI R NG G Published in 2011 by Witherby Publishing Group Ltd 4 Dunlop Square Livingston, Edinburgh, EH54 8SB Scotland, UK Tel No: +44 (0) 1506 463 227 Fax No: +44 (0) 1506 468 999 Email: info@emailws...

Words: 14343 - Pages: 58

Premium Essay

Mechanical Papers

...Authorities Amsterdam-Antwerpen-Rotterdam Area American Bureau of Shipping ABouT ADress COMission Arrival First Sea Pilot Station ( Norway) All Going Well Anchor Handling AnchorHandling Tug ALUminium ANTwerp-HAMburg range Arrival Pilot Station Amsterdam-Rotterdam-Antwerp-Gent range Any Safe Port in the World Any Time Day/Night Sundays and Holidays INCluded Actually Time Used To Count AlongSide Bale (cargo capacity) Bunker adjusting factor (freight) Bareboat Before Breaking Bulk Both Dates Inclusive Both Ends ( Load and discharge ports) BEGinning Both Ends ( Load and discharge ports) Both Inclusive. The Baltic and International Maritime Conference BaLe Booking Note Bunker On Board everyday term for container (or boxed vessel) Breadth Brake Horse Power British Marine Mutual Break load Best ReGarDS Bunkers Remaining On Board Gross tonnage Basis 1 port to 1 port Berth Terms Bureau Veritas Brackish Water Arrival Draft Currency adjusting factor (freight) Condition Assessment Programme Capacity CuBic FeeT sshinC/sshinC Center Tank Cubic FeeT Cost and FReight Chemical CHOPT CIF CIP CIRR CLC COA COACP COBLDN COGSA CONT COW C/P CPT CPD CQD COD COP CR Cr CROB CST CUFT Cy C/X D/A DAF DAP Dbl DBL SKIN DC DDP/(U) DELY DEM DES DEQ DESP DHDATSBE DHDWTSBE DK DLOSP DNV DO DOLSP DOP DOT DP DPT DSV DYNPOS E0 EC EIU ETA ETC ETD Eth CHarterer's OPTion Costs Insurance and Freight Carriage and Insurance paid to..... Commercial Interest Reference Rate Civil Liability Convention Contract Of Affreightment...

Words: 1431 - Pages: 6

Premium Essay

Identification of Possible Human Errors That Can Result in Fires/Explosions During Tankers' Cargo Loading/Unloading Operations at the Xyz Marine Petroleum Terminal.

...SUBMISSION OF FINAL RESEARCH REPORT University of Wisconsin-Stout The graduate School The accompanying research report was submitted to the Graduate School, University of Wisconsin-Stout, as partial completion of the requirements for the degree, M.S. in Risk Control. I understand that this report must be officially accepted by the Graduate School which will then forward it to the Library Learning Center, where it will be placed on microform or other electronic storage and made available as any other published document including placement on the Library Web Page. I attest that the research report is my original work, and that any copyrightable materials have been used with the permission of the original authors, and as such, it is automatically protected by the laws, rules, and regulations of the U.S. Copyright Office. TITLE OF REPORT IDENTIFICATION OF POSSIBLE HUMAN ERRORS THAT CAN RESULT IN FIRES/EXPLOSIONS DURING TANKERS' CARGO LOADING/UNLOADING OPERATIONS AT THE XYZ MARINE PETROLEUM TERMINAL SIGNATURE __________________________________DATE ________ PERMANENT ADDRESS 2721 Harvey Dr. Apartment #1. Menomonie, WI 54751, USA TELEPHONE # 715-235-4730 (This section to be completed by the graduate School) This final research report was submitted in partial fulfillment of the requirements for the above stated degree on this date, and has been accepted by the Graduate School and is now ready for transmittal to the Library Learning Center for placement on microform or other storage...

Words: 15534 - Pages: 63

Premium Essay

Quantitative Easing Case Study

...a problem of Vinashin company. Mr. Pham Thanh Binh is general manager with highest power in company. Most notably that, Mr. Binh was signed without going through an evaluation council in buying Hoa Sen ship. According to the indictment, Mr. Binh (as organizer) and the co-conspirators were deliberately doing some behavior like not following the instruction of the Prime Minister and approved to purchase before the ship up and evaluation the project, not the procedure of competitive offers, not capital settlement project ... The consequences of these behaviors, according to the assessment, Vinashin has caused damage to the particular and the general budget nearly 470 billion , in which the amount of interest and borrowing costs rose to more than 464 billion. Moreover, company also invested projects in Binh Dinh Star Ship damage than 30.4 billion and the sale of the Bach Dang hull damage than 27.3 billion. It loss nearby 1,000 billion VND, could not recovery. Because of the monopoly, when he signed many average investment decisions that many members of the board, general manager did not know. It is a special example of moral hazards.  Quantitative easing Quantitative easing (QE) is a policy in which central banks print money, hold tax revenue and organized borrowing money to pump into the economy in order to further increase lending by commercial banks, spending by consumers, to lower interest rates and spur economic growth. If interest rates are very low and the Bank’s Monetary...

Words: 1682 - Pages: 7

Free Essay

Dan Simons

...Benjamin Franklin Tilley (March 29, 1848 – March 18, 1907) was an officer in the United States Navy and the first acting governor of what is now American Samoa. He entered the Naval Academy at age 15 during the Civil War and graduated in 1866. In the wake of the Great Railroad Strike of 1877, he participated as a lieutenant in the military's crackdown against workers. During the 1891 Chilean Civil War, Tilley and a small contingent of sailors and marines defended the American consulate in Santiago, Chile. Commanding the gunship USS Newport in the Spanish–American War, he captured two Spanish Navy ships. After the war Tilley was promoted to captain and became the acting governor of Tutuila and Manua, present-day American Samoa, where he set legal and administrative precedents for the new territory. Tilley's successor, Captain Uriel Sebree, praised his "great ability, kindness, tact and sound common sense". He was promoted to rear admiral after almost 41 years of naval service, but died within a month from pneumonia. (Full article...) Recently featured: The Boat Race 1993 Christ lag in Todes Banden, BWV 4 Winnipeg Archive By email More featured articles... Did you know... A sketch of Santi Sergio e Bacco in the Roman Forum A sketch of Santi Sergio e Bacco in the Roman Forum ... that contrary to popular belief, Ss. Sergio e Bacco al Foro Romano (pictured) may not have been destroyed so that Charles V could pass through the Arch of Septimius Severus? ... that "Long Way to Go"...

Words: 1036 - Pages: 5

Free Essay

Types of Business

...* Agro Products * Animal Feeds * Aqua Culture & Fish Farming * Astrologers * Academy & Arts * Animation * Art & Design * Art Galleries * Audio Recording Studio * Audio-Visual Production & Services * Automobile Air-Conditioner * Automobile Assembler & Manufacturers * Automobile Body Manufacturers * Automobile Display & Sales Center * Automobile Distributor * Automobile Paints * Automobile Parts & Accessories * Automobile Service Center * Automobile Workshop & Maintenance * Advertising Agencies & Counselors * Advertising-Out Door * Acids * Adhesives Glue & Gum * Agricultural Chemicals * Architects * Audio-Visual Equipment Suppliers * Audio-Visual Tapes & Cassettes * Alarm & Alarm Systems * Abrasives * Aluminium Fabricator * Aluminium Products Manufacturer, Dealer & Seller * Association of Development Agencies in Bangladesh * Associations * Animal Health * Ayurvadic & Herbal Products * Aerosol * Accounts & Audit Service * Agricultural Machineries & Equipment * Air Condition Project & Installation * Air Conditioner & Air Cooler Distributor & Service * Air Conditioning-Equipment & Parts * Anti Vibration Equipment * Arms & Ammunition * Airlines * Air Craft Spare Parts * Auto Cycle...

Words: 2328 - Pages: 10

Premium Essay

1989: Exxon Valdez Oil Spill

...spewing her cargo into water rich in marine life. (Shabecoff, 1989) THE BACK STORY THE TRANS-ALASKA PIPELINE SYSTEM After oil was discovered in Prudhoe Bay on the northern coast of Alaska in 1968, the Alyeska Pipeline Service Company was formed by the owner companies: BP Exploration, ARCO, Exxon, Mobil, Amerada Hess, Phillips, and Union. Alyeska determined that the most economic method of transporting oil from Prudhoe Bay to the U.S. west coast was oil transport through a pipeline from the bay to Valdez, followed by oil tanker transport south. President Richard Nixon signed the Trans-Alaska Pipeline Authorization Act on November 16, 1973. The Trans-Alaska Pipeline System (TAPS) consists of an extensive 800 mile pipeline (Figure 6.1), 11 pump stations, and an oil terminal at Valdez; it cost more than $8 billion to build (USDIBLM, 2005). 75 OIL SPILL PREPAREDNESS At the time of the Exxon Valdez oil spill, six contingency plans were in place to coordinate oil spill response efforts. On the national level, the National Response Team (NRT) provided national support for response actions related to oil discharges and hazardous substance releases. NRT supported emergency responders at all levels by means of technical expertise and equipment, assisted in the development of training, coordinated responses with neighboring countries, and managed the National Response System. NRT actions were to be primarily conducted through Regional Response Teams (RRT). The RRT plan for Prince William...

Words: 1392 - Pages: 6

Premium Essay

Decisions in Paradise Pt. 3

...the owner of Kava Imports, Chris Morales, that "now" was the time to act. Any further delays, given the degenerating condition of the island of Kava and its people, would make restoration of the island of Kava and the business structure of Kava Imports on the island a prolonged, costly, and possibly unsuccessful endeavor. Alex and I were to become work partners during solution implementation. "This is no longer a training exercise," he explained, "We are at a point where our business' life is at stake on this island." He further explained that the implementation process was the most laborious, critical, and time-consuming part of developing a solution. As he explained, "The paper work is easy, the leg work takes the effort!" The board of directors of Kava Imports along with a government representative had determined that the restoration of infrastructure providing potable water was the first project to be initiated. As Alex and I drove to a nearby office building where we were to meet water officials, he asked me to summarize the decision making groups findings. I recounted my work with the water problem group. I reminded him of the University of Phoenix Nine Step decision-making process that I had described. I informed him that I used the process to...

Words: 1980 - Pages: 8