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Topic: Combined gas and gas

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	Combined gas and gas - Wikipedia, the free encyclopedia
		Combined gas turbine and gas turbine (COGAG) is a type of propulsion system for ships using two gas turbines connected to a single propeller shaft.
		Since the fuel efficiency of a gas turbine is best near its maximum power level, a small gas turbine running at its full speed is more efficient compared to a twice as powerful turbine running at half speed, allowing more economic transit at cruise speeds.
		Compared to Combined diesel and gas (CODAG) or Combined diesel or gas (CODOG), COGAG systems have a smaller footprint but a much lower fuel efficiency at cruise speed and for CODAG systems its also somewhat lower for high speed dashes.
	en.wikipedia.org /wiki/Combined_gas_and_gas (193 words)

	World Bank - Gas Combined Cycle
		The gas turbine has the inherent disadvantage that reduced air density with high ambient temperature or high elevation causes a significant reduction in power output and efficiency, because the mass flow through the gas turbine is reduced.
		The gas turbine, steam turbine, and generator may be arranged as a single-shaft design, or a multishaft arrangement may be used with each gas turbine driving a generator and exhausting into its heat recovery boiler with all boilers supplying a separate steam turbine and generator.
		Another point favoring staging a combined-cycle unit is that the gas turbine (or combined-cycle) per kilowatt cost does not seem to increase significantly for smaller units, as is the case for steam units due partly to the high cost of the substantial civil works necessary for steam plants regardless of steam unit size.
	www.worldbank.org /html/fpd/em/power/EA/mitigatn/gascsubs.stm (2339 words)

	EPA - TTN EMC - Spectral Database - Reports - Combine Cycle Gas-Fired Gas Turbine Emissions Test
		Gas phase analysis involves extracting gas from the sample point location and transporting the gas through sample lines to a mobile laboratory where sample conditioning and FTIR analyses are performed.
		The four combined cycle gas turbines and their associated steam turbine are collectively referred to as a General Electric Stag 300 system (Figure 2-1).
		The CTS gas was 100 ppm ethylene in nitrogen.
	www.epa.gov /ttn/emc/ftir/reports/r08.html (11044 words)

	Improved liquefied natural gas fueled combined cycle power plant - Patent 5457951
		A method and system for using liquefied natural gas ("LNG") in combination with a combined cycle plant both to chill a heat exchange fluid which fluid is used to cool and densify the intake air for a gas turbine and to condense the spent steam from a steam turbine.
		It is state of the art practice to extend a gas turbine plant with a waste-heat boiler and to combine the gas turbine plant with a steam turbine.
		The gas turbine exhaust gases are passed through the waste-heat boiler and the residual heat potential of these waste gases is utilized for producing the steam required for feeding the steam turbine.
	www.freepatentsonline.com /5457951.html (3560 words)

	Second law Analysis of Gas Turbines...simple, combined, heat, exchange, recuperated, fuel, cell, solid, oxide, engine, ...
		In general when it is stated that a certain gas turbine had an exergy efficiency of 85% it refers to the percentage of exergic energy in an amount of caloric energy that was consumed using the terms from Fig 1.
		All 6 gas turbines were evaluated with the same formulas, however compressor and turbine efficiencies and pressure losses were altered for all gas turbines to fall in line with the type of engine.
		To model the gas turbine compression process, a piston in a cylinder is used as shown in Fig 5a.
	www.benwiens.com /energy2.html (5528 words)

	Modern Exploration, Inc. - Glossary of Oil And Gas Terms
		Known also as gas cap gas and solution gas, it provides the force (also called the drive mechanism) needed to force oil to the surface of a well.
		A tank in which water is heated by burning a fuel like coal, natural gas, or oil to produce steam for spinning a steam turbine to generate electricity or for use in a variety of industrial manufacturing processes.
		Natural gas from the well that is free of liquid hydrocarbons; gas that has been treated to remove all liquids making it suitable for shipping in a pipeline.
	www.modernexploration.com /glossary/index.html (1601 words)

	Gas Laws
		From this, we derive the molar volume of a gas (volume/moles of gas).
		Using the Ideal Gas Law, and comparing the pressure of one gas to the total pressure, we solve for the mole fraction.
		As we stated earlier, the shape of a gas is determined entirely by the container in which the gas is held.
	www.shodor.org /unchem/advanced/gas (1034 words)

	GE - Aviation: GE Delivers LM2500 Gas Turbines For U.S. Navy's DDG 80 Arleigh Burke-Class Destroyer
		Each DDG ship is powered by four LM2500 gas turbines which are in a combined gas and gas (COGAG) configuration.
		M&I's LM family of gas turbines is currently being considered as the main propulsion for the next U.S. Navy destroyer, the DD 21.
		M&I is the world's largest designer, developer and manufacturer of aeroderivative gas turbines and for a variety of power generation, gas compression and commercial and military marine propulsion applications.
	www.geae.com /aboutgeae/presscenter/marine/marine_19980225.html (474 words)

	Untitled (Site not responding. Last check: 2007-09-20)
		This model is based on the kinetic theory and can be used to explore the relationships between pressure, volume and temperature for a gas.
		In the model below, the inital conditions are set to a temperature of O°C (273 K), a volume of 22.4 dm3 and 1.0 mol of the gas argon, Ar.
		the gas consists of particles (atoms or molecules) in continuous random motion
	chem.salve.edu /chemistry/gaslaws.asp (205 words)

	LM2500 Gas Turbine Engine
		The combination of the compressor, combustor, and high pressure turbine are often called the gas generator.
		An advantage of a gas turbine engine is its ability to be removed from the ship for repair in a short period of time (approximately 72 hours).
		A set of rails is permanently installed in the intakes of each engine and a set of temporarily installed transition rails allow the disconnected engine to transit from its mounting attachments in the module onto the rails in the intakes.
	www.globalsecurity.org /military/systems/ship/systems/lm2500.htm (1073 words)

	Power Technology - Hsinta Natural Gas Fired Combined Cycle Gas Turbine Plant Taiwan
		To comply with Taiwan's energy diversification policy and to meet increasing environmental concerns, the installed capacity of LNG-fired units is expected to increase from over 8,000MW in 2001 to 10,000MW by 2005.
		The configuration adopted was five 442MW (net) power trains, each comprising three gas turbines with heat recovery steam generators, and a steam turbine.
		Siemens Power Corp. in Milwaukee, Wisconsin, supplied the gas turbines, while the steam turbines and generators were manufactured at the Siemens' plant in Mülheim, Germany.
	www.power-technology.com /projects/hsinta (764 words)

	GT PRO: Gas turbine combined cycle design program
		Gas turbine combined cycle design program to create cycle heat balance and physical equipment needed to realize it.
		The variety of gas turbine based power plant configurations you can design in GT PRO is virtually endless.
		From gas turbines in simple cycle, to engines exhausting into waste heat recovery boilers for process steam, optionally including condensing, non-condensing, or reheat steam turbines, with any sort of cooling system, are all easily accommodated in GT PRO.
	www.thermoflow.com /CombinedCycle_GTP.htm (447 words)

	Power Technology - Cilegon Gas Turbine Combined-Cycle (GTCC) Power Plant, Indonesia
		The GTCC plant uses gas and steam turbines for two-stage electricity generation.
		MHI gas turbines feature stacked disk type rotor, cannular type combustor, cold end drive, two-bearing supported rotor, four stage reaction turbine and tangential strut design.
		The "F" series gas turbine was developed in the late 1980s, starting with research on advanced technologies at MHI Takasago RandD centre.
	www.power-technology.com /projects/cilegon (618 words)

	Combined-structure semiconductor gas sensor based on butane gas
		A new combined-structure semiconductor gas sensor based on butane gas is reported in this paper.
		The combined structure sensor is a gas sensor that is based on the complementary feedback principle.
		According to the sensor's structure and meeting conditions, we prepared the combined-structure gas sensor for butane gas.
	stacks.iop.org /0268-1242/16/682 (311 words)

	Great Pyramid of Gas Laws (Site not responding. Last check: 2007-09-20)
		Students keep developing mathematical manipulation of gas law problems in which different variables change or are held constant.
		How do you approach the various types of problems: combined gas law, ideal gas law, and the gas law relations.
		Coach your students and reinforce that the numbers are connected to actual physical experience.
	www.msu.edu /~giangaco/Journey/stage5.htm (52 words)

	GE Infrastructure - Heavy Duty Gas Turbines & Combined Cycle
		Always on the cutting edge of gas turbine technology, GE offers a wide array of technological options to meet the most challenging energy requirements.
		GE's H System—the world's most advanced combined cycle system and the first capable of breaking the 60 percent efficiency barrier—integrates the gas turbine, steam turbine and heat recovery steam generator into a seamless system.
		Pioneered by GE almost 30 years ago, Integrated Gasification Combined Cycle (IGCC) technology produces low-cost electricity from low cost opportunity feedstocks such as coal, heavy oils and pet coke while meeting strict environmental regulations.
	www.gepower.com /prod_serv/products/gas_turbines_cc/en/index.htm (379 words)

	British Gas - Combined - Utility Services Shopping at dooyoo.co.uk
		British Gas - Combined : British gas - combined gas, electricity and telephone.
		She told me my gas would go up in price by 1p per k/w of energy used - the gas man came round to my house today to change my meter to 16p p/kw instead of the 7p it originally was.
		She told me that to sign up to the deal with Talktalk/Onetel I would have to sign up for gas and electric with British Gas - Onetel have since informed us that this is, in fact, not true.
	www.dooyoo.co.uk /utility-services/british-gas-combined (306 words)

	COMBINED GAS LAW CALCULATOR
		The above formula is the Combined Gas Law and is used when Pressure, Volume and Temperature change.
		As a practice example, 8 liters of a gas has a pressure of 760 torr and a temperature of 600 Degrees Kelvin.
		Calculate the temperature when the volume is 2 liters and the pressure is 1520 torr.
	www.1728.com /combined.htm (171 words)

	Gas turbine combined cycle plant and compressor - US Patent 6598401 (Site not responding. Last check: 2007-09-20)
		Gas turbine combined cycle plant and compressor - US Patent 6598401
		A gas turbine, a combined cycle plant and compressor by which both augmentation of the power output and augmentation of the thermal efficiency can be realized by injecting liquid droplets into inlet air introduced into an entrance of a compressor with simple equipment which is suitable for practical use.
		The gas turbine includes a compressor for taking in and compressing gas, a combustor in which fuel is combusted with the gas discharged from the compressor, and a turbine driven by the combusted gas of the combustor.
	www.patentstorm.us /patents/6598401.html (187 words)

	Laughing Gas
		Now, I know the old expression is "close only counts in horseshoes and hand grenades", but I've discovered it also applies to dynamite, tear gas, smoke bombs, flame throwers, plutonium, acid rain, volcanic eruptions and nuclear explosions...
		Whenever I open a magazine and the combined odors from all those perfume samples wafts through the air, there's always that brief moment when I wonder...
		I'll bet that wearing a combination onion, chive, scallion and leek necklace would also pretty much ward off most evil...
	pages.prodigy.net /jschla (1585 words)

	Lesson 7-6 Combined Gas Law Problems
		There are many situations that would call for the use of more than one of the gas laws.
		Perhaps the most common situation involves using both Charles's law and Boyle's law on the same gas sample.
		Because pressure and temperature will change from day to day and from location to location, it is common to mathematically adjust the volume of a gas to standard temperature and pressure.
	www.fordhamprep.com /gcurran/sho/sho/lessons/lesson76.htm (182 words)

	Natural Gas Compressor Manufacture and Sales - COMBINED HEAT & POWER, INC (Site not responding. Last check: 2007-09-20)
		Purchase and application of this compressor by gas producers will significantly lower the cost of natural gas extraction and delivery.
		Longest operating commercial gas gathering application exceeds 20,000 hours with no compressor maintenance.
		Investment on the order of 3 to 5 million USD is being sought to begin volume production, production of larger compressors, and to initiate widespread marketing and sales.
	www.ibf.com /bo/combinedheatandpower.htm (162 words)

	Combined Gas Law (Site not responding. Last check: 2007-09-20)
		This is rather unrealistic since in most cases a sample of gas will be under the influence of all three of the other variables changing.
		When this happens we are dealing with the Combined Gas Law.
		A gas occupies a volume of 20 L at a pressure of 5 atm and a temperature of 500K.
	members.aol.com /profchm/comb_gas.html (216 words)

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		Sign up today for email alerts of new market research reports in your industry.
		Gas and other services combined: State Market Index
		The metrics in this report cover three year trends in SIC 4932 [Transport-Utilities-Communications sector], broken out on a state-by-state basis.
	www.marketresearch.com /land/product.asp?productid=1206003&progid=3602 (242 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		Energy Citations Database (ECD) Document #6597401 - Experience with gas/steam combined cycle turbines on a natural gas pipeline
		Experience with gas/steam combined cycle turbines on a natural gas pipeline
		Gas turbine conference and products show; 27 Mar 1977; Philadelphia, PA, USA; ASME Paper 77-GT-8
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=6597401 (136 words)

	Intergraph \| Utilities - Gas
		For gas customers, Intergraph provides an environment in which pre-integrated solutions streamline day-to-day service-delivery activities.
		When these stand-alone solutions are combined into one, they create enormous economies of scale.
		Streamlined workflows and enterprise data access prevent information bottlenecks, long paper trails, and other delays that hinder productivity.
	www.intergraph.com /gas (203 words)

	Find in a Library: Combined-cycle gas & steam turbine power plants
		Find in a Library: Combined-cycle gas & steam turbine power plants
		To find this item in a library, enter a postal code, state, province, or country in the field above.
		WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
	worldcatlibraries.org /wcpa/ow/b117b47e6bab070ba19afeb4da09e526.html (46 words)

	COMBINED ELECTROLYTIC HYDROGEN GAS SEPARATOR AND GENERATOR FOR GAS CHROMATOGRAPHIC SYSTEMS (US3835019)
		COMBINED ELECTROLYTIC HYDROGEN GAS SEPARATOR AND GENERATOR FOR GAS CHROMATOGRAPHIC SYSTEMS (US3835019)
		COMBINED ELECTROLYTIC HYDROGEN GAS SEPARATOR AND GENERATOR FOR GAS CHROMATOGRAPHIC SYSTEMS
		News, Profiles, Stocks and More about this company
	www.delphion.com /details?pn10=US03835019 (109 words)

	My WikiMap - Find Cheap Gas Prices on GoogleMap and more!
		My WikiMap - Find Cheap Gas Prices on GoogleMap and more!
		Find Cheap Gas Prices and more with tags
		(use regular or diesel for gas price entries)
	www.mywikimap.com (35 words)

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