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Centrifugal pump A centrifugal pump is a rotodynamic pump that uses a rotating impeller to increase the pressure of a fluid. Centrifugal pumps are commonly used to move liquids through a piping system. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits into the downstream piping system. Centrifugal pumps are used for large discharge through smaller heads. History Warman centrifugal pump in a Coal Handling and Preparation Plant (CHPP) application According to Reti, the Brazilian soldier and historian of science, the first machine that could be characterized as a centrifugal pump was a mud lifting machine which appeared as early as 1475 in a treatise by the Italian Renaissance engineer Francesco di Giorgio Martini. True centrifugal pumps were not developed until the late 17th century, when Denis Papin made one with straight vanes. The curved vane was introduced by British inventor John Appold in 1851. How it works Like most pumps, a centrifugal pumps converts mechanical energy from a motor to energy of a moving fluid; some of the energy goes into kinetic energy of fluid motion, and some into potential energy, represented by a fluid pressure or by lifting the fluid against gravity to a higher level. The transfer of energy from the mechanical rotation of the impeller to the motion and pressure of the fluid is usually described in terms of centrifugal force, especially in older sources written before the modern concept of centrifugal force as a fictitious force in a rotating reference frame was well articulated. The concept of centrifugal force is not actually required to describe the action of the centrifugal pump. In the modern centrifugal pump, most of the energy conversion is due Cutaway view of centrifugal pump to the outward force that curved impeller blades impart on the fluid. Invariably, some of the energy also pushes the fluid into a circular motion, and this circular motion can also convey some energy and increase the pressure at the outlet. The relationship between these mechanisms was described, with the typical mixed conception of centrifugal force as known as that time, in an 1859 article on centrifugal pumps, thus: Centrifugal pump To arrive by a simpler method than that just given at a general idea of the mode of action of the exterior whirlpool in improving the efficiency of the centrifugal pump, it is only necessary to consider that the mass of water revolving in the whirlpool chamber, round the circumference of the wheel, must necessarily exert a centrifugal force, and that this centrifugal force may readily be supposed to add itself to the outward force generated within the wheel; or, in other words, to go to increase the pumping power of the wheel. The outward force generated within the wheel is to be understood as being produced entirely by the medium of centrifugal force if the vanes of the wheel be straight and radial; but if they be curved, as is more commonly A centrifugal pump uses a spinning "impeller," the case, the outward force is partly produced through the which normally has backward-swept blades that medium of centrifugal force, and partly applied by the vanes to directly push water outward. the water as a radial component of the oblique pressure, which, in consequence of their obliquity to the radius, they apply to the water as it moves outwards along them. On this subject it is well to observe that while the quantity of water...
2013 commercial trucks Tough business environments demand even tougher trucks. At GMC, we are Professional Grade. That means our engineers design, innovate and build the vehicles professionals choose. They’re constantly exceeding expectations and raising the bar for the competition. They built the first pickup with a hydroformed steel frame, eliminating welds and increasing strength. They were the first to push a V-8-powered pickup truck over the 400 hp mark. Innovations such as these have defined GMC throughout our history. Professionals know they can rely on the safety, technology, power and strength of GMC vehicles, whether it’s a Sierra 3500HD Chassis Cab, a Savana Passenger Van, one of GMC’s capable and efficient SUVs or a true workhorse, the GMC Sierra 1500. Our dedication is to push the limits of what’s possible. Like you, GMC believes that just being good enough is never enough. And that jobs worth doing are worth doing well. gmc. WE ARE PROFESSIONAL GRADE. Sierra says you care about more than getting a job done; you care about doing it well. GMC Savana makes sure no matter where you are, you have what you need to deliver. Work that involves carrying up to nine people in comfort demands GMC Yukon. All the benefits of an SUV with all the advantages of a crossover. Terrain 32 Alternative fuel Offerings 36 features & TECHNOLOGY 38 Accessories & Business choice 40 A fuel-efficient crossover SUV that’s still comfortable and has plenty of cargo space. Alternative fuels do more than just help the environment—they also help your budget. With innovative digital and mechanical technologies, GMC helps you get work done. Upfit equipment and incentive options so you can customize your GMC to fit your needs.
EMERGENCY POWER KIT FOR CHEVROLET VOLT FEATURES: Utilizes 12V accessory power system of the Volt Provides backup power without needing to run the Volt’s gasoline engine* Includes all hardware and accessories designed specifically for the Volt No drilling or other modifications to the Volt are needed Quick disconnect system allows for easy connection of inverter Maximum Inverter Size supported: 1000W with 2000W surge. Installation Time: 30 minutes DESCRIPTION: The EVEX-1000W is a do-it-yourself** wiring kit to provide emergency backup power from your Chevrolet Volt. The kit is custom-designed for the Volt, to allow for a hidden installation with power connector access through the fuse box compartment on the left-side of the hatch storage area. The kit includes a fuse holder with fuse, heavy duty wires cut to length with soldered leads and pre-installed wire terminals, as well as a heavy duty connector set to allow quick connections to the inverter of your choice as needed. The kit is designed for a maximum inverter size of 1000W with 2000W surge. This maximum size is designed to work within the limits of the Volt’s 12V power electronics design. WHAT’S INCLUDED: Fuse holder and fuse, with heavy duty Velcro to secure holder 4AWG wiring for positive and negative 12V connections 8AWG wiring for chassis connection (required by some inverters) High current DC connector for quick inverter connect when emergency power is needed Step by step instruction manual for installation 1000W true sine wave inverter (optional, select when ordering) More details including frequently asked questions are available on our website. * The vehicle is required to be turned on for emergency back-up power. In most scenarios, the engine will not run, and the 12V system will get its power from the Volt’s high voltage traction battery. In some scenarios however, the engine may cycle on and off intermittently. This may occur if the high voltage traction battery is depleted, if the vehicle is in mountain or hold mode, if temperatures are below 40F, or if the vehicle’s hood is open. Always make sure vehicle is in a properly ventilated area! Exhaust will be emitted when engine is running. ** If you are not experienced and comfortable with 12V wiring, please seek the assistance of a professional. EVEX-1000W email@example.com http://www.evextend.com
How to Lose Weight Effortlessly and Keep It Off Forever I want to give you the simple steps that will allow you to lose weight faster and easier than ever before, and keep it off once and for all. Space does not permit me to go into the “whys” regarding each step. I can assure you that following these steps will absolutely work. The discovery of the reasons why Americans are so overweight, and an easy workable solution. Doing these steps will turn your body into a fat-burning furnace and bring your weight to its natural state. These steps also have tremendous health benefits as well. Diet & Supplements Drink a glass of water immediately upon rising Ideally, the water should be distilled. Absolutely no tap water. This starts the body’s metabolism and cleansing. Eat a big breakfast It is interesting to note that 80 percent of the people who are overweight eat a small breakfast or none at all. Eighty percent of thin people eat a large breakfast. Your breakfast should consist of as much as you want of the following items. Everything listed should be organic. Apples, pears, berries, kiwis, pineapples, grapefruit, plums, peaches, prunes, figs, rye bread, raw butter (raw means not pasteurized and not homogenized), raw milk, plain yogurt (this means no sugar or fruit), wild smoked salmon, beef in any form as long as it’s organic, chicken in any form as long as it’s organic, lamb in any form as long as it’s organic, tuna, sardines, eggs, tomatoes, peppers, salsa, celery, carrots, any vegetable, potatoes in limited amounts, coffee in limited amounts made with pure water not tap water with raw milk or cream and raw evaporated sugar cane juice or honey as a sweetener, real tea (not tea in tea bags). Drink 8 glasses of water each day People think drinking water will make them gain weight and be bloated. The exact opposite is true. If you are overweight you need to flush the toxins from your fat cells. Water is absolutely needed for you to lose weight. Eat organic grapefruits all day Remember the grapefruit diet? Well, it appears that there actually is an enzyme in grapefruits that burns fat. Eating grapefruits all day, as many and as often as you desire, will speed the fat burning process. Take digestive enzymes If you are overweight there is an excellent chance your body is not producing enough digestive enzymes, causing you to gain weight, feel bloated, have gas, indigestion, and constipation. Go to your health food store and inquire. Try several kinds to see which one works best for you. Eat organic apples all day The old saying is true – an apple a day keeps the doctor away. Apples are loaded with fiber and nutrients; they normalize your blood sugar and decrease your appetite. You should eat at least one apple every day. The more the better. Eat only organic meat, poultry & fish One of the reasons you are overweight is because of the growth hormone put in meat and poultry. If you want to lose weight, eat as much meat and poultry as you like as long as it is organic, grass fed, ideally kosher, and most importantly, has not been given growth hormone. The fish you eat should not be farm raised. Eat a huge salad at lunch & dinner I don’t care if your lunch is a cheeseburger, French fries, and a pint of ice cream, add to it a big, huge salad and eat that first. You’ll be amazed that you lose weight. The salad can contain anything you like as long as it is only vegetables and they are organic. The salad dressing should be organic olive oil and freshly squeezed lemon juice, or organic vinegar. If you really want to speed the weight loss process use organic apple cider vinegar. Add some organic sea salt, fresh ground pepper, or some garlic for taste. ...
Orlando flaunts a number of Indian restaurants that serve authentic delicacies that are true to their origin
It’s said good things come in small packages and this is as true for a cup cake. A cupcake is just a smaller version of created to serve one person. Just like a regular cake, the cupcake consists of an icing and other cake decorations including names tame tags.
1888 PressRelease - As a sponsor of the Wounded Warrior Amputee Football Team (WWAFT) charity flag football game to raise awareness and support for military servicemen and women who lost limbs while serving in Iraq or Afghanistan, TouchTone Wireless Chief Executive Officer James D'Asti's family learned the true meaning of the word "hero."
BAHASA INGGRIS : XII IPA/IPS : 90 menit Mata Pelajaran Kelas/ Program Waktu Choose A, B, C, D, or E for the correct answer. Listening Section In this section of the test, you will have the chance to show how well you understand spoken English. There are three parts to this section with special directions for each part. Part I Questions 1 to 5 Directions: In this part of the test, you will hear some dialogues or questions spoken in English. The dialogues or questions will be spoken two times. They will not be printed in your test book so you must listen carefully to understand what the speakers say. After you hear a dialogue and the question about it, read the five possible answers and decide which one would be the best answer to the question you have heard. Now listen to a sample question. You will hear: Man : How about exercising tomorrow morning? Woman : Alright. Pick me up at 6. You will also hear: Narrator : What will the man do? You will read in your test book: a. Do exercise at 6. b. Go with six women. c. Take exercise alone. d. Leave the woman alone. e. come to the woman’s house. The best answer to the question is “Come to the woman’s house.” Therefore, you should choose answer (e). 1. a. She cut herself quite badly. b. She wasn’t given any help. c. She cried while slicing onions. d. She sliced the onions hurriedly. e. She was going to make fried rice. 2. a. Do his assignment b. See a book fair. c. Buy a history book. d. Offer the woman a book. e. Go to the woman’s house. 3. a. To buy a novel. b. To read a novel. c. To lend a novel. d. To go to a bookstore. e. To finish reading a novel. 4. a.1 b.2 c.3 d.4 e.5 Latihan Soal UN dan Ujian SNMPTN /PTS 2012/2013 1 5. a.1 b.2 c.3 d.4 e.5 PART II Questions 6 to 10 Directions: In this part of the test, you will hear a statement or a question spoken in English, foolowed by four responses, also spoken in English. The statement or question and the responses will be spoken two times. They will not be printed in your test book, so you must listen carefully to understand what the speakers say. You have to choose the best response to each statement or question. Now listen to a sample question: You will hear: Woman : Good morning, John. How are you? Man : …… You will also hear: a. I am fine, thank you. c. Let me introduce myself. b. I am in the living room. d. My name is John Travolta. 6. 7. 8. 9. 10. The best answer to the question “How are you?” is choice (a), “I’m fine, thank you.” Therefore, you should choose answer (a). Mark your answer on your answer sheet. Mark your answer on your answer sheet. Mark your answer on your answer sheet. Mark your answer on your answer sheet. Mark your answer on your answer sheet. Part III Questions 11 to 15 Directions: In this part of the test, you will hear several monologues. Each monologue will be spoken two times. They will not be printed in your test book so you must listen carefully to understand what the speakers say. After you hear a monologue and the questions about it, read the five possible answers and decide which one would be the best answer to the questions you have heard. 11. a. b. c. Goose hunting An unfaithful dog An unusual accident d. A mathematics teacher e. Chambers Country Policeman 12. a. b. c. Arthur Houston Labrador d. Perry Price e. Joe LaRive Latihan Soal UN dan Ujian SNMPTN /PTS 2012/2013 2 13. a. b. c. It lies on high land. It is densely populated. It lies on a flat low plain area. d. The climate is hot and humid. e. It is at the mouth of the Ciliwung River. 14. a. b. c. James’ pet dog Muggs’ characteristics Muggs’ strange behavior d. The night when Muggs died e. Browny, the Cocker Spaniel 15. a. b. c. Andre Muggs James d. Browny e. George This is the end of the listening section Reading Section Text 1 is for number 16 Miss Ratu, I’m going to have a business trip to Surabaya and Jakarta. I’d like to go by train from here to Surabaya this afternoon and spend two days there. Then I’d like to fly to Jakarta and stay there for three nights. 1. Please book an executive class train ticket and seat reservation to Surabaya. 2. Please book single room with bath for three nights (Wed 1, Thurs 2, Fri 3) at Sulthan Hotel, Jakarta Selatan. Thanks, Raja 16. What is the message about? A. B. C. D. E. Mr. Raja’s request to his secretary. Ratu’s plan to Surabaya. A business trip to Surabaya. Mr. Raja’s schedule to Jakarta. A reservation for a train ticket. Text 2 is for number 17 Hi, Guys! 78 shs will hold a Fund Raising Activity next month. It is intended to help victims of earthquake in several areas in Aceh. Everyone who is interested in this activity, please join us. You are also invited to donor your used clothes. For further information, please contact Teuku as the chief program cocoordinator at his office or to the following numbers: 021- 7996070 081318777056 17. What is the activity for? A. Collecting used clothes B. Helping their raising activity C. Joining fund raising activity D. Helping victims of earthquakes E. Inviting neighbor to donor used clothes Text 3 is for number 18 The University of Australia The University of Australia has an international reputation for educational professionals and applied research. It is Australia’s largest university, with six campuses, including a specialized technology campus. The university places particular importance on the quality of its teaching and learning programs, and on its working links with industry, business and government. 18. Which information is NOT TRUE about the University of Australia? Latihan Soal UN dan Ujian SNMPTN /PTS 2012/2013 3 A. B. C. D. E. It has an international educational reputation It also has a specialized technology campus It has six technology campuses It is Australia’s largest university It has good relation with industry Text 4 is for number 19 and 20 Quake Rocks Southern Philippines Philippines: A 5,3-magnitude earthquake struck the southern Philippines on Thursday, the U.S. Geological Survey said, but there were no reports of casualties or damage. The undersea quake struck at 11:20 a.m. (03200 GMT) around 96 kilometers south east of the southern city of General Santos on the island of Mindanao, the U.S. agency said. The quake was felt in various cities in Mindanao but was not large enough to cause any major damage or panic, said the Philippine Institute of Volcanology and Seismology (Phivolcs). The archipelago nation, made up of more than 7,000 islands, sits on the Pacific “Ring of fire” where continental plates collide, causing frequent seismic and volcanic activity. (Adapted from the Jakarta Post, December 2008) 19. How do we know that the quake was not considered as a big one? Because .... A. It was an undersea quake B. There was no victims or damage C. The quake was less than 5,3 magnitute D. The distance was deep down the sea E. The quake rocked the center of Mindanao, ...
It turns out that the male organ, which is generally viewed as a pretty straightforward tool, has a few little secrets up its… well. Here is a look at some of the weirdest facts about the manhood.