Statistical Analysis for Shipboard Electrical Power Plant Design

2013 ◽  
Author(s):  
James M. Wolfe ◽  
Morgan M. Fanberg
Keyword(s):  
Power Plant ◽  
Power Systems ◽  
Electric Power ◽  
Power Distribution ◽  
Power Plants ◽  
Electrical Power ◽  
Plant Design ◽  
Electric Power Plants ◽  
Power Load ◽  
False Sense

The traditional electric power load analysis (EPLA) uses a very basic routine of assigning demand factors to each connected electric load, then summing these to arrive at an estimated power plant load. This method is overly simplistic, gives a false sense of certainty, and does not accurately reflect vessel operations. This paper will describe an alternative to traditional methods of determining ratings and configurations for electric power plants during vessel concept and preliminary design. This method uses statistical methods to calculate a range of possible power plant demand. Resulting data can be used to evaluate power plant configurations with respect to design risk, vessel operating profiles, and potential limitations. The ability to better evaluate the complete range of required electric power across all operating profiles increases in importance as vessel power plants become more sophisticated with the introduction of variable speed generation, battery/hybrid power systems, DC power distribution, and distributed load centers.

scholarly journals Destructiveness of Profits and Outlays Associated with Operation of Offshore Wind Electric Power Plant. Part 1: Identification of a Model and its Components

2018 ◽  
Vol 25 (2) ◽  
pp. 132-139 ◽  
Author(s):  
Andrzej Tomporowski ◽  
Józef Flizikowski ◽  
Weronika Kruszelnicka ◽  
Izabela Piasecka ◽  
Robert Kasner ◽  
...  
Keyword(s):  
Power Plant ◽  
Electric Power ◽  
Power Plants ◽  
Electric Power Industry ◽  
Offshore Wind ◽  
Electric Power Plant ◽  
Domestic Markets ◽  
Electric Power Plants ◽  
Environmental Objects ◽  
Development Prospects

Abstract This paper describes identification and components of destructiveness of energy, economic and ecologic profits and outlays during life cycle of offshore wind electric power plants as well as the most useful models for their design, assembly and use. There are characterized technical conditions (concepts, structures, processes) indispensable for increasing profits and/or decreasing energy, economic and ecological outlays on their operation as well as development prospects for global, European and domestic markets of offshore wind electric power industry. A preliminary analysis was performed for an impact of operators, processed objects, living and artificial environmental objects of a 2MW wind electric power plant on possible increase of profits and decrease of outlays as a result of compensation of destructiveness of the system, environment and man.

The Elephant in the Room–Gas Turbine Power

2010 ◽  
Vol 132 (12) ◽  
pp. 57-57
Author(s):  
Lee S. Langston
Keyword(s):  
Power Plant ◽  
Electric Power ◽  
Gas Turbine ◽  
Power Plants ◽  
Electrical Power ◽  
Electric Power Industry ◽  
Hydrocarbon Fuel ◽  
Combined Cycle ◽  
Electrical Generator ◽  
Gas Turbine Exhaust

This article presents an overview of gas turbine combined cycle (CCGT) power plants. Modern CCGT power plants are producing electric power as high as half a gigawatt with thermal efficiencies approaching the 60% mark. In a CCGT power plant, the gas turbine is the key player, driving an electrical generator. Heat from the hot gas turbine exhaust is recovered in a heat recovery steam generator, to generate steam, which drives a steam turbine to generate more electrical power. Thus, it is a combined power plant burning one unit of fuel to supply two sources of electrical power. Most of these CCGT plants burn natural gas, which has the lowest carbon content of any other hydrocarbon fuel. Their near 60% thermal efficiencies lower fuel costs by almost half compared to other gas-fired power plants. Their installed capital cost is the lowest in the electric power industry. Moreover, environmental permits, necessary for new plant construction, are much easier to obtain for CCGT power plants.

Dual Brayton Cycle Gas Turbine Pressurized Fluidized Bed Combustion Power Plant Concept

1997 ◽  
Author(s):  
Xing L. Yan ◽  
Lawrence M. Lidsky
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Power Plants ◽  
Environmental Benefits ◽  
Brayton Cycle ◽  
Plant Design ◽  
Fluidized Bed Combustion ◽  
Electric Power Plants ◽  
Wide Range ◽  
Pressurized Fluidized Bed Combustion

High generating efficiency has compelling economic and environmental benefits for electric power plants. There are particular incentives to develop more efficient and cleaner coal-fired power plants, to permit use of the world’s most abundant and secure energy source. This paper presents a newly-conceived power plant design, the Dual Brayton Cycle Gas Turbine PFBC, that yields 45% net generating efficiency and fires on a wide range of fuels with minimum pollution, of which coal is a particularly intriguing target for its first application. The DBC-GT design allows power plants based on the state-of-the-art PFBC technology to achieve substantially higher generating efficiencies while simultaneously providing modern gas turbine and related heat exchanger technologies access to the large coal power generation market.

Dual Brayton Cycle Gas Turbine Pressurized Fluidized Bed Combustion Power Plant Concept

1998 ◽  
Vol 120 (3) ◽  
pp. 566-572 ◽  
Author(s):  
X. L. Yan ◽  
L. M. Lidsky
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Power Plants ◽  
Environmental Benefits ◽  
Brayton Cycle ◽  
Plant Design ◽  
Fluidized Bed Combustion ◽  
Electric Power Plants ◽  
Wide Range ◽  
Pressurized Fluidized Bed Combustion

High generating efficiency has compelling economic and environmental benefits for electric power plants. There are particular incentives to develop more efficient and cleaner coal-fired power plants in order to permit use of the world’s most abundant and secure energy source. This paper presents a newly conceived power plant design, the Dual Brayton Cycle Gas Turbine PFBC, that yields 45 percent net generating efficiency and fires on a wide range of fuels with minimum pollution, of which coal is a particularly intriguing target for its first application. The DBC-GT design allows power plants based on the state-of-the-art PFBC technology to achieve substantially higher generating efficiencies, while simultaneously providing modern gas turbine and related heat exchanger technologies access to the large coal power generation market.

Challenges in Designing and Building a 700 MW All-Air-Cooled Steam Electric Power Plant

2011 ◽  
Author(s):  
John T. Langaker ◽  
Christopher Hamker ◽  
Ralph Wyndrum
Keyword(s):  
Power Plant ◽  
Electric Power ◽  
Power Plants ◽  
Combined Cycle ◽  
Air Cooling ◽  
Plant Design ◽  
Auxiliary Equipment ◽  
Turbine Generator ◽  
Plant Equipment ◽  
Dry Cooling

Large natural gas fired combined cycle electric power plants, while being an increasingly efficient and cost effective technology, are traditionally large consumers of water resources, while also discharging cooling tower blowdown at a similar rate. Water use is mostly attributed to the heat rejection needs of the gas turbine generator, the steam turbine generator, and the steam cycle condenser. Cooling with air, i.e. dry cooling, instead of water can virtually eliminate the environmental impact associated with water usage. Commissioned in the fall of 2010 with this in mind, the Halton Hills Generating Station located in the Greater Toronto West Area, Ontario, Canada, is a nominally-rated 700 Megawatt combined cycle electric generating station that is 100 percent cooled using various air-cooled heat exchangers. The resulting water consumption and wastewater discharge of this power plant is significantly less than comparably sized electric generating plants that derive cooling from wet methods (i.e, evaporative cooling towers). To incorporate dry cooling into such a power plant, it is necessary to consider several factors that play important roles both during plant design as well as construction and commissioning of the plant equipment, including the dry cooling systems. From the beginning a power plant general arrangement and space must account for dry cooling’s increase plot area requirements; constraints therein may render air cooling an impossible solution. Second, air cooling dictates specific parameters of major and auxiliary equipment operation that must be understood and coordinated upon purchase of such equipment. Until recently traditional wet cooling has driven standard designs, which now, in light of dry cooling’s increase in use, must be re-evaluated in full prior to purchase. Lastly, the construction and commissioning of air-cooling plant equipment is a significant effort which demands good planning and execution.

scholarly journals INVESTIGATIONS OF ELECTRIC POWER QUALITY IN AUTONOMOUS LOW POWER PLANT

2017 ◽  
Vol 3 ◽  
pp. 136
Author(s):  
Andrei Khitrov ◽  
Alexander Khitrov ◽  
Evgeny Veselkov ◽  
Vyacheslav Tikhonov
Keyword(s):  
Power Plant ◽  
Low Power ◽  
Electric Power ◽  
Power Quality ◽  
Power Plants ◽  
Low Voltage ◽  
Energy Sources ◽  
Variable Speed ◽  
Electric Power Plants ◽  
Electric Power Quality

Autonomous low power electric power plants working with variable speed energy sources or electric subsystems of cogeneration plants of some type need to increase the low speed or the low voltage of the system. In this paper the investigations and the results of the experiments conducted using different structures are given.

scholarly journals ELECTRIC POWER PRODUCED BY NON-SELF-PROPELLED HYDRO POWER VESSEL

2018 ◽  
pp. 92-102
Author(s):  
Liudmila Fedorovna Borisova ◽  
Aleksandr Nikolaevich Korobko
Keyword(s):  
Power Plant ◽  
Electric Power ◽  
Power Plants ◽  
Structural Characteristics ◽  
Plant Design ◽  
Power Module ◽  
Tidal Power ◽  
Energy Potential ◽  
Tidal Power Plant ◽  
Hydro Power

The article contains the method of calculating the electric capacity by a non-self-propelled hydro power vessel which uses renewable tidal power to produce electricity. The vessel is built by means of reconstructing tankers that are in service or to be disposed and can be characterized as a power generating module of a floating non-self-propelled tidal power plant of continuous operation. To evaluate efficiency of the power generated module there has been worked out a method of calculating its generated energy, which allows for local energy potential of the tidal flow, structural characteristics of the module and its geographical position. Based on the developed method there has been given analysis of power generated by one electric power module which can be made by means of construction minor modifications of a standard tanker design. The calculation data obtained were analyzed in comparison with power capacity of small hydroelectric power plants operating in the north-west parts of Russia and with capacity of Kislogubskaya tidal power plant. The tidal power plants can generate electric power comparable with the capacities of tidal (marine) and river-type power plants. The economic benefit of the proposed power plant design is obtained due to significant reduction of costs for implementing floating tidal power plant, compared to the costs of the construction of tidal and hydroelectric stations. The floating tidal power plant is characterized by mobility and can be towed to any coastal zone where the tidal wave parameters are acceptable. When needed, capacity of the floating tidal power plant can be raised by means of attaching additional modules. Mounting and operating of tidal power plants are environmentally secure. The use of tidal power plants is a promising means of electrification for inaccessible and marginal coastal areas.

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