Light-water reactor

The light-water reactor (LWR) is a type of thermal-neutron reactor that uses normal water, as opposed to heavy water, as both its coolant and neutron moderator – furthermore a solid form of fissile elements is used as fuel. Thermal-neutron reactors are the most common type of nuclear reactor, and light-water reactors are the most common type of thermal-neutron reactor.

There are three varieties of light-water reactors: the pressurized water reactor (PWR), the boiling water reactor (BWR), and (most designs of) the supercritical water reactor (SCWR).

History

Early concepts and experiments

After the discoveries of fission, moderation and of the theoretical possibility of a nuclear chain reaction, early experimental results rapidly showed that natural uranium could only undergo a sustained chain reaction using graphite or heavy water as a moderator. While the world's first reactors (CP-1, X10 etc.) were successfully reaching criticality, uranium enrichment began to develop from theoretical concept to practical applications in order to meet the goal of the Manhattan Project, to build a nuclear explosive.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Light-water_reactor

Latest News for: lwr

REAL ESTATE BRIEFS: Toll Brothers enters LWR market with The Isles

Herald Tribune 23 Jun 2018

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NUREG/CR-6909, Revision 1 Effect of LWR Water Environments on the Fatigue Life of Reactor Materials – Final Report

Public Technologies 01 Jun 2018

However, the ASME Code design curves do not explicitly address the effects of light-water reactor (LWR) water environments ... life (ε-N) data illustrate potentially significant effects of LWR water environments on the fatigue resistance of pressure vessel and piping steels ... The original version of NUREG/CR-6909, 'Effect of LWR Coolant Environments on ......

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51 flood survivors get new homes

The Himalayan 25 Dec 2017

The post 51 flood survivors get new homes appeared first on The Himalayan Times . ....

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LWR's receivership properties on market

Stuff 07 Nov 2017

The receivers of LWR Durham Properties are selling two high-profile "as is where is" industrial properties on the city fringe in Sydenham, Christchurch. LWR Industries and several subsidiaries were placed into receivership in 2010 owing more than $50 million to the secured lender Westpac ... The secured creditor of LWR Durham Properties is BNZ, owed 14.4m ... * Receivers sue insurers of fraudster Ken Anderson's former LWR buildings....

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Lightning strike twice in LWR: hockey team plans outdoor hockey rink, expands partnership with SMR

Herald Tribune 26 Oct 2017

Lightning struck twice in Lakewood Ranch this week. The Tampa Bay Lightning, that is.Hockey competitors and converts will soon enjoy an outdoor hockey rink to be built at the Premier Sports Campus ... ....

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Lutheran World Relief Launches the LWR Regional Cocoa Flavor Map for El Salvador, Honduras and Nicaragua

Public Technologies 26 Oct 2017

BALTIMORE-The LWR Regional Cocoa Flavor Map, an innovative initiative documenting the distinct flavor profiles of cocoa produced by Lutheran World Relief farmer and cooperative partners in El Salvador, Nicaragua, and Honduras, is being unveiled at the Salon du Chocolat 2017, an international trade fair from Oct ... For more information, visit lwr.org....

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The European Union and LWR Launch Initiative in Niger to Increase Farmers’ Resilience to Climate Change through the GOMNI Project

Public Technologies 23 Oct 2017

The LWR initiative will seek to increase farmers' resilience to these challenges by increasing productivity on their farms through the use of best environmentally friendly agricultural practices, as well as improving water, soil and forest management ... In times of emergency, LWR is also a trusted partner to distribute aid and ensure people are prepared to withstand the next unexpected challenge. For more information, visit lwr.org....

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LWR Tour of Homes begins in earnest today

Herald Tribune 20 Oct 2017

70 models open in popular master-planned community ... ....

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LWR Responds to Deadly Flooding in India and Nepal

Public Technologies 16 Aug 2017

Already active with award-winning development projects in both regions long before the recent rains, LWR is focusing its emergency efforts on short-term food rations for families. In Nepal, LWR is providing food to an initial 1,650 families in the ... Original documenthttps.//lwr.org/pressrelease/lwr-responds-to-deadly-flooding-in-india-and-nepal....

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LWR Providing Aid to Families Affected by Fighting in the Philippines

Public Technologies 11 Jul 2017

Lutheran World Relief (LWR) is providing cash assistance to fund food purchases by families displaced by fighting between the Philippines army and militants in the southern city of Marawi on the island of Mindanao ... LWR is also ... Original documenthttps.//lwr.org/pressrelease/lwr-providing-aid-to-families-affected-by-fighting-in-the-philippines....

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Lutheran World Relief and THRIVE Farmers Introduce LWR Farmers Market Coffee — Sourced Directly from Farmers in Nicaragua

Public Technologies 15 Jun 2017

Lutheran World Relief (LWR), in partnership with THRIVE Farmers®, today announced the launch of LWR Farmers Market Coffee, sourced directly from farmers in Nicaragua ... LWR Farmers Market Coffee employs a farmer-direct model pioneered by THRIVE Farmers that will expand LWR's work to help coffee farmers break the cycle of poverty, so they can feed and support their families with greater economic stability....

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LWR joins Christian organizations in urging prayer for refugees – and those serving them – around the world

Public Technologies 14 Jun 2017

The 2017 #PrayForRefugees campaign begins June 14 and continues through June 20, World Refugee Day. Prayer resources can be found at prayforrefugees.com and will be shared via Twitter at #prayforrefugees. The campaign will focus on the work of LWR in assisting Syrian refugees on Day Two ... Original documenthttps.//lwr.org/pressrelease/lwr-joins-christian-organizations-in-urging-prayer-for-refugees-and-those-serving-them-around-the-world....

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LWR & IMA World Health Providing Lifesaving Treatment to Severely Malnourished Children in South Sudan

Public Technologies 12 Jun 2017

In South Sudan, where the United Nations has declared the world's first famine since 2011, Lutheran World Relief (LWR) is partnering with IMA World Health to set up and run life-saving medical centers that will treat young children at risk of death from starvation ... Original documenthttps.//lwr.org/pressrelease/lwr-ima-world-health-providing-lifesaving-treatment-to-severely-malnourished-children-in-south-sudan....

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