|
Ravenswood Nuclear Power Plant
The Ravenswood Nuclear Power Plant was proposed in 1962 by the Consolidated Edison (Con Ed) electric utility for the Ravenswood Generating Station site in Long Island City, New York. To be completed in 1970, the facility was to be the largest nuclear power installation in the world at that time, with a generating capacity exceeding the total of all nuclear power facilities in the United States then operating. After encountering opposition from local residents and the city of New York, and in the face of skepticism concerning safety from the Atomic Energy Commission, the proposal was withdrawn in 1964. Project history and cancellation In 1962 Consolidated Edison proposed a nuclear reactor for the site of the then-new coal-powered Ravenswood Generating Station in Long Island City. The nuclear facility was intended to alleviate costs associated with stockpiling coal at the location, and to avoid costs for long transmission lines from outside the city. At 750 megawatts (MW), boosted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Consolidated Edison
Consolidated Edison, Inc., commonly known as Con Edison (stylized as conEdison) or ConEd, is one of the largest investor-owned energy companies in the United States, with approximately $12 billion in annual revenues as of 2017, and over $62 billion in assets. The company provides a wide range of energy-related products and services to its customers through its subsidiaries: *Consolidated Edison Company of New York, Inc. (CECONY), a regulated utility providing electric and gas service in New York City and Westchester County, New York, and steam service in the borough of Manhattan; *Orange and Rockland Utilities, Inc., a regulated utility serving customers in a area in southeastern New York and northern New Jersey; and, *Con Edison Transmission, Inc., which invests in electric and natural gas transmission projects. In 2015, electric revenues accounted for 70.35% of consolidated sales (70.55% in 2014); gas revenues 13.61% (14.96% in 2014); steam revenues 5.01% (4.86% in 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Design-basis Event
A design-basis event (DBE) is a postulated event used to establish the acceptable performance requirements of the structures, systems, and components, such that a nuclear power plant can withstand the event and not endanger the health or safety of the plant operators or the wider public. Similar terms are design-basis accident (DBA) and maximum credible accident. Subtypes of DBEs are: * design-basis criticality: "A criticality accident that is the most severe design-basis accident of that type applicable to the area under consideration." * design-basis earthquake (DBE): "That earthquake for which the safety systems are designed to remain functional both during and after the event, thus assuring the ability to shut down and maintain a safe configuration." * design-basis explosion: "An explosion that is the most severe design-basis accident of that type applicable to the area under consideration." * design-basis fire: "A fire that is the most severe design-basis accident of this type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shoreham Nuclear Power Plant
The Shoreham Nuclear Power Plant was a completed General Electric nuclear boiling water reactor located adjacent to Long Island Sound in East Shoreham, New York. The plant was built between 1973 and 1984 by the Long Island Lighting Company (LILCO). The plant faced considerable public opposition after the 1979 Three Mile Island accident and the 1986 Chernobyl disaster. There were large protests and two dozen local groups opposed the plant. In 1983, Suffolk County determined that the county could not be safely evacuated in the event of a serious nuclear accident at the plant. Governor Mario Cuomo ordered state officials not to approve any LILCO-sponsored evacuation plan—effectively preventing the plant from operating at full capacity. The plant was completed in 1984 and in 1985 LILCO received federal permission for low-power (5 percent power) tests. By 1989, it became apparent that not enough local communities would sign on to the evacuation plan for the plant ever to be a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pervious Concrete
Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge. Pervious concrete is made using large aggregates with little to no fine aggregates. The concrete paste then coats the aggregates and allows water to pass through the concrete slab. Pervious concrete is traditionally used in parking areas, areas with light traffic, residential streets, pedestrian walkways, and greenhouses. Report No. 522R-10. It is an important application for sustainable construction and is one of many low impact development techniques used by builders to protect water quality. History Pervious concrete was first used in the 1800s in Europe as pavement surfacing and load bearing walls. Cost efficiency was the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Containment Building
A containment building is a reinforced steel, concrete or lead structure enclosing a nuclear reactor. It is designed, in any emergency, to contain the escape of radioactive steam or gas to a maximum pressure in the range of . The containment is the fourth and final barrier to radioactive release (part of a nuclear reactor's defence in depth strategy), the first being the fuel ceramic itself, the second being the metal fuel cladding tubes, the third being the reactor vessel and coolant system. Each nuclear plant in the United States is designed to withstand certain conditions which are spelled out as "Design Basis Accidents" in the Final Safety Analysis Report (FSAR). The FSAR is available for public viewing, usually at a public library near the nuclear plant. The containment building itself is typically an airtight steel structure enclosing the reactor, normally sealed off from the outside atmosphere. The steel is either free-standing or attached to the concrete missile shiel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superheater
A superheater is a device used to convert saturated steam or wet steam into superheated steam or dry steam. Superheated steam is used in steam turbines for electricity generation, in some steam engines, and in processes such as steam reforming. There are three types of superheaters: radiant, convection, and separately fired. A superheater can vary in size from a few tens of feet to several hundred feet (a few metres to some hundred metres). Types * A radiant superheater is placed directly in the radiant zone of the combustion chamber near the water wall so as to absorb heat by radiation. * A convection superheater is located in the convective zone of the furnace, in the path of the hot flue gases, usually ahead of an economizer. A convection superheater is also called a primary superheater. * A separately fired superheater is a superheater that is placed outside the main boiler and has its own separate combustion system. This superheater design incorporates additional burners i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressurized Water Reactor
A pressurized water reactor (PWR) is a type of light-water nuclear reactor. PWRs constitute the large majority of the world's nuclear power plants (with notable exceptions being the UK, Japan, India and Canada). In a PWR, water is used both as a neutron moderator and as coolant fluid for the reactor core. In the core, water is heated by the energy released by the fission of atoms contained in the fuel. Using very high pressure (around 155 bar: 2250 psi) ensures that the water stays in a liquid state. The heated water then flows to a steam generator, where it transfers its thermal energy to the water of a secondary cycle kept at a lower pressure which allows it to vaporize. The resulting steam then drives steam turbines linked to an electric generator. A boiling water reactor (BWR) by contrast does not maintain such a high pressure in the primary cycle and the water thus vaporizes inside of the reactor pressure vessel (RPV) before being sent to the turbine. Most PWR designs ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buchanan, New York
Buchanan is a village located in the town of Cortlandt in Westchester County, New York, United States. The population was 2,302 as of the 2020 census. The now decommissioned Indian Point nuclear power facility is located in Buchanan. The 2000 Rockefeller Center Christmas tree also came from Buchanan. The 80-foot tall Norway spruce was donated by Bill and Frances Heady. Bill Heady planted the tree in 1950. Geography Buchanan is located at . According to the United States Census Bureau, the village has a total area of , of which are land and , or 17.86%, is water. Demographics As of the census of 2000, there were 2,189 people, 814 households, and 609 families residing in the village. The population density was . There were 912 housing units at an average density of . The racial makeup of the village was 96.21% white, 0.69% African American, 0.18% Native American, 1.19% Asian, 0.78% from other races, and 0.96% from two or more races. Hispanic or Latino of any race were 3.4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Point Energy Center
Indian Point Energy Center (I.P.E.C.) is a now defunct three-unit nuclear power station located in Buchanan, just south of Peekskill, in Westchester County, New York. It sits on the east bank of the Hudson River, about north of Midtown Manhattan. The facility permanently ceased power operations on April 30, 2021. Before its closure, the station's two operating reactors generated about 2,000 megawatts ( MWe) of electrical power, about 25% of New York City's usage. The station is owned by Holtec International, and consists of three permanently deactivated reactors, Indian Point Units 1, 2, and 3. Units 2 and 3 were Westinghouse pressurized water reactors. Entergy purchased Unit 3 from the New York Power Authority in 2000 and Units 1 and 2 from Consolidated Edison in 2001. The original 40-year operating licenses for Units 2 and 3 expired in September 2013 and December 2015, respectively. Entergy had applied for license extensions and the Nuclear Regulatory Commission (NRC) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staten Island
Staten Island ( ) is the southernmost of the boroughs of New York City, five boroughs of New York City, coextensive with Richmond County and situated at the southernmost point of New York (state), New York. The borough is separated from the adjacent state of New Jersey by the Arthur Kill and the Kill Van Kull and from the rest of New York by New York Bay. With a population of 495,747 in the 2020 United States census, 2020 Census, Staten Island is the least populated New York City borough but the third largest in land area at ; it is also the least densely populated and most suburban borough in the city. A home to the Lenape Native Americans, the island was settled by Dutch colonists in the 17th century. It was one of the 12 original counties of New York state. Staten Island was City of Greater New York, consolidated with New York City in 1898. It was formerly known as the Borough of Richmond until 1975, when its name was changed to Borough of Staten Island. Staten Island has so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coney Island
Coney Island is a neighborhood and entertainment area in the southwestern section of the New York City borough of Brooklyn. The neighborhood is bounded by Brighton Beach to its east, Lower New York Bay to the south and west, and Gravesend to the north and includes the subsection of Sea Gate on its west. More broadly, the Coney Island peninsula consists of Coney Island proper, Brighton Beach, and Manhattan Beach. This was formerly the westernmost of the Outer Barrier islands on the southern shore of Long Island, but in the early 20th century it became connected to the rest of Long Island by land fill. The origin of Coney Island's name is disputed, but the area was originally part of the colonial town of Gravesend. By the mid-19th century it had become a seaside resort, and by the late 19th century, amusement parks had also been built at the location. The attractions reached a historical peak during the first half of the 20th century. However, they declined in popularity aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roosevelt Island
Roosevelt Island is an island in New York City's East River, within the Borough (New York City), borough of Manhattan. It lies between Manhattan Island to the west, and the borough of Queens, on Long Island, to the east. It is about long, with an area of , and had a population of 11,722 as of the 2020 United States census. It consists of two largely residential communities: Northtown and Southtown. Roosevelt Island is owned by the city but was leased to the New York State Urban Development Corporation (UDC) for 99 years in 1969. The island was called by the Lenape and (Hog Island) by the New Netherlander, Dutch during the colonial era and later Blackwells Island. During much of the 19th and 20th centuries, the island was used by hospitals and prisons, with very limited access. It was renamed Welfare Island in 1921. Following several proposals to redevelop Welfare Island in the 1960s, the UDC leased the island, renamed it after former U.S. president Franklin D. Roosevelt in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
