Proper Way of Handling laboratory and Chemical Apparatus Dan Michael Bermudez IV-A Table of Contents i Introduction ii Content Safety In The Use Of Laboratory Equipment Glassware Centrifuges Gas Burner Heating and cooling the glassware Cleaning and Drying Glassware Disposal and Spill Clean-up Spills and broken glass Disposal Contaminated broken glass Uncontaminated broken Glass iii Reference iv Activity Introduction Laboratory equipment can be hazardous
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vast improvement in all of these respects. A turbine consist of one set of stationary blades or nozzles and an adjacent set of moving blades or buckets. These stationary and rotating elements act together to allow the steam flow to do work on the rotor. The ork is transmitted to the load through the shaft or shafts. Figure 1.1 Block diagram of a Turbine 1.2 HISTORY Steam turbines date back to 120 B.C. when the first steam turbine was developed by Hero of Alexandria. Subsequently number
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first started to get interested in fixing cars at a young age‚ watching my father work on his vehicles. He showed me how to maintain a vehicle by changing the engine and transmission oils. Once I got a little older he started to show me how to replace rotors‚ brakes‚ tie rods‚ and control arms. When I went to high school I went to a vocational school and I took up mechanics. After high school I had an opportunity to work for a mechanic shop‚ and I took that opportunity. When I arrived at the shop my
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......................................6 AC Motor Construction...........................................................15 Developing A Rotating Magnetic Field....................................19 Rotor Construction .................................................................22 NEMA Rotor Characteristics...................................................26 Electrical Components Of A Motor.........................................29 Voltage And Frequency ...............................
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Field Oriented Control of PMSM with Model Reference Adaptive Control Using Fuzzy-PI Controller A. Laxmi Soundarya1‚ N.Krishna Kumari2 1 Department of EEE‚ VNRVJIET‚ JNTUH‚ AndhraPradesh 2Department of EEE‚ VNRVJIET‚ JNTUH‚ AndhraPradesh 1soundraya7@gmail.com 2nkksrm@gmail.com Abstract— This paper proposes to describe Field oriented control (FOC) of Permanent Magnet Synchronous motor (PMSM) using MRAS speed observer for sensorless control of drive. The aim of the proposed sensorless control
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2 | Patch chords | | As required | CIRCUIT DIAGRAM: THEORY: A synchro device‚ whether transmitter or receiver or control transformer‚ consists of a stator and a rotor. The stator consists of three windings with their axes 120° apart‚ connected in star. The phase in these windings is taken out as S1‚ S2 and S3. The rotor consists of a laminated iron core carrying a single winding at end of which R1 and R2 are brought out to slip-rings. VR(t) = VR sin(ωct) The stator terminal voltages
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------------------------------------------------- Electric generator From Wikipedia‚ the free encyclopedia U.S. NRC image of a modern steam turbine generator Early Ganz Generator in Zwevegem‚West Flanders‚ Belgium Early 20th century alternator made inBudapest‚ Hungary‚ in the power generating hall of a hydroelectric station In electricity generation‚ an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge (usually carried
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generated is proportional to the rotation rate of the rotor and the distance between the rotor centre and the centrifuge tube. There are three general classes of centrifuges: low speed‚ about 5000 rpm‚ high speed machine can up to about 25000 rpm and ultracentrifuges turn at up to1000000 rpm. Microcentrifuges are common in laboratories which generate between 10000 rpm and 13000 rpm and 0.5 or 1.5 mL of disposable plastic tubes is used. Rotors for a centrifuge are either fixed angles or swinging buckets
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Alan Turing finished the design of the the Bombe in the late months of 1939‚ at the UK Government Code and Cypher School‚ inspired by the Bomba. The first Bombe was completed early 1940‚ and was named Victory.() The Bombe could check the enigma rotor positions much quicker than any human could‚ having to do it by hand‚ and made Bletchley Park a “code breaking factory”() Even though there were other devices like this machine‚ the Bombe is the most important and well known‚ because of the information
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requires NB power to get the old rotors re installed. 3. Loss of Revenue: As the new turbines were expected to increase the plants power output‚ so till the time it is repaired NB turbines has to bear the loss of revenue. Also the additional power would be required to be bought so that the demand of the customers is fulfilled. 4. Repair Cost: Both the turbines were around $20 million and to repair them it would take another $10 Million. 5. Cost of shipping rotors back for repair to U.K and
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