(Section 2.2.2) Non-ozone depleting refrigerants (Section 2.2.3) 2. Compressor development (Section 2.3): i. ii. iii. iv. v. vi. Low-speed steam engine driven compressors (Section 2.3.1) High-speed electric motor driven compressors (Section 2.3.1) Rotary vane and rolling piston compressors (Section 2.3.2) Screw compressors (Section 2.3.2) Scroll compressors (Section 2.3.2) Centrifugal compressors (Section 2.3.3) At the end of the lesson the student should be able to: i. ii. iii. iv. v. vi. vii. State
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Usually used for emergency stop without causing water hammer. Deflector 10 Crossflow Turbines 11 • Banki or Mitchell turbine. • Shaft oriented horizontally. • Rectangular nozzle forms the jet. • Water strikes the blades twice. • A control vane changes jet size. Crossflow Turbines
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HYDRAULIC THEORY Introduction A hydraulic system is defined as a‚ ‘machinery unit which uses fluid as a pressure medium’. It has a number of advantages over an electrical system of a similar working capacity. Advantages: (1) The power to weight ratio is at least 14 times better than an equivalent electrical system. (2) Self-resetting overload protection. (3) Self-lubricating. (4) Infinitely variable speeds. (5) No static electricity. (6) Linear motion.
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industrial use c) In low speed aircraft operating at low altitudes d) In helicopters 6. Which of these is a turboprop engine? a) RB211 b) Dart c) Adour d) Spey 7. A turbine is made up of a number of stages‚ each stage consisting of nozzle guide vanes (NGV’s) and rotor blades. How are these arranged? a) NGV’s are on top of rotor blades b) Rotor blades are on top of NGV’s c) NGV’s are in front of rotor blades d) Rotor blades are in front of NGV’s 8. The drawing indicates which type of thrust
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SENSORS AND INTERFACING BY S. Muhammad Raza RF POWER AMPLIFIER: An RF power amplifier is a type of electronic amplifier used to convert a low-power radio-frequency signal into a larger signal of significant power‚ typically for driving the antenna of atransmitter. It is usually optimized to have high efficiency‚ high output Power(P1dB)compression‚ good return loss on the input and output‚ good gain‚ and optimum heat
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fuel and air are admitted and combustion occurs. 2. Piston‚ which receives high pressure of expanding hot products of combustion and the piston‚ is forced to linear motion. 3. Connecting rod‚ crankshaft linkage to convert reciprocating motion into rotary motion of shaft. 4. Connected Load‚ mechanical drive or electrical generator. 5. Suitable valves (ports) for control of flow of fuel‚ air‚ exhaust gases‚ fuel injection‚ and ignition systems. 6. Lubricating system‚ cooling system The compression
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Centrifugal pumps uses OF CENTRIFUGAL PUMPS: The applications of centrifugal pumps are numerous; however‚ these pumps are most often used in buildings for the following purposes: To pump the general water supply. This includes both the overhead and pneumatic tank systems. In general water supply systems where the pump takes off directly from the city pressure main or where no suction lift is required‚ a centrifugal pump can be used. When a centrifugal pump is being used with a suction
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[pic] [pic] ERODE - 638 052. PERISTALTIC SELF-INFLATING TYRE SYSTEM (A self inflating tyre system for automobiles using a peristaltic pump) PRESENTED BY R.PRAVEEN KUMAR (26ME71) P.VIGNESH (26ME108) 3rd year mechanical
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namely‚ pumps‚ fans‚ blowers and compressors. Though liquids particularly can be transported by operators carrying buckets‚ the usual mode of transport of fluids is through pipelines with pumps‚ compressors‚ fans and blowers. Generally‚ the word “pump” designates a machine or device for moving an incompressible liquid while fans‚ blowers and compressors are devices for moving gas (usually air). PUMPS There are three common types of pumps: the centrifugal pump‚ the reciprocating pump and the rotary
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Attitude Indicator (Artificial Horizon) The Attitude Indicator shows rotation about both the longitudinal axis to indicate the degree of bank‚ and about the lateral axis to indicate pitch (nose up‚ level or nose down). It utilizes the rigidity characteristic of the gyro. It is gimballed to permit rotation about the lateral axis indicating pitch attitude‚ and about the longitudinal axis to indicate roll attitude. Once powered up‚ the indicator is maintain in a fixed position no matter what
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