Military Jet Engine Acquisition Technology Basics and Cost-Estimating Methodology pdf

... govern- ment and industry engine acquisition and engineering communities use a variety of parameters to assess and compare the quality and Introduction 3 performance of jet engines and their components. ... 5 PART I: ENGINE BASICS AND PERFORMANCE PARAMETERS 9 Chapter Two JET ENGINE BASICS, METRICS, AND TECHNOLOGICAL TRENDS This chapter provides a basic overview of...

Ngày tải lên: 15/03/2014, 18:20

... govern- ment and industry engine acquisition and engineering communities use a variety of parameters to assess and compare the quality and Introduction 3 performance of jet engines and their components. ... 5 PART I: ENGINE BASICS AND PERFORMANCE PARAMETERS 9 Chapter Two JET ENGINE BASICS, METRICS, AND TECHNOLOGICAL TRENDS This chapter provides a basic overview of...

Ngày tải lên: 29/03/2014, 15:20

... transmit 11 Baseband and Broadband • Baseband: digital signals sent through direct current (DC) pulses applied to a wire – Requires exclusive use of wire’s capacity – Baseband systems can transmit ... 10 Throughput and Bandwidth • Throughput: measure of amount of data transmitted during given time period • Bandwidth: difference between highest and lowest frequencies that a ... reduce...

Ngày tải lên: 30/03/2014, 07:20

Ngày tải lên: 16/03/2014, 00:07

... systems and operations • Steam generation and furnace systems and operations • Reactor systems and operations • Key concepts and learning features include: Valves, piping, tanks, and vessels • ... systems, and operations. New features include: Storage tank designs and safety considerations • Scroll and diaphragm compressors • Compressor systems and operations • He...

Ngày tải lên: 15/08/2013, 07:50

... valve) is securely attached to the bottom of the jet. A leather seal is located between the check and the jet. The jet is secured to the drop pipe and lowered into the water pipe casing. A specially ... water recirculates down the casing and the excess flows to a storage tank. Another common jet pump arrangement includes a jet assembly and a centrifugal pump. The jet ass...

Ngày tải lên: 16/08/2013, 15:29

... generators, ships, and racing cars and are a primary component of jet aircraft engines. There are three primary parts of a gas turbine system: an axial compressor, a com- bustion chamber, and a gas ... through alternate sets of fixed and revolving blades, it constantly expands as it moves along. The rotating paddlewheel is attached to a shaft, and the blading and shaft to- g...

Ngày tải lên: 19/08/2013, 10:47

... the baffles in place and prevent vibration and excessive tube movement. Nozzles and Accessory Parts Shell -and- tube inlet and outlet nozzles are sized for pressure drop and v elocity considerations. ... shell and tube, reboiler, plate and frame, air cooled, and spiral. The shell -and- tube heat exchanger is the most common in the process industry. Shell -and- tube heat ex...

Ngày tải lên: 20/08/2013, 10:39

... the trap and comes into con- tact with the bellows. Condensate causes the bellows to contract and open. Steam causes the bellows to expand and close. Bellows traps can handle condensate and noncondensable ... bucket traps can handle condensate, air, and other noncondensable gases such as nitrogen and oxygen. During operation, the steam enters the bottom of the trap via the inl...

Ngày tải lên: 21/08/2013, 10:47

... codes, and steam traps. Pumps and Tanks Pumps and tanks come in a variety of designs and shapes. Common pump and tank symbols are shown in Figure 12.11. Compressors, Steam Turbines, and Motors Because ... scope and size of modern chemical processing. Most chemical plants and refineries closely resemble small cities; they have well-defined blocks and areas connected by a h...

Ngày tải lên: 23/08/2013, 14:30