The Influence of the Sensible Heat Removal on the Condensation onto Aerosols inside a Light Water Reactor Containment

The Idaho National Engineering and Environmental Laboratory (INEEL), Nexant Inc. and the Oregon State University (OSU) have developed a Multi-Application Small Light Water Reactor (MASLWR) concept. The MASLWR is a small, safe and economic natural circulation pressurized light water reactor. MASLWR reactor module consists of an integral reactor/steam generator located in a steel cylindrical containment. The entire module is to be entirely shop fabricated and transported to site on most railways or roads. Two or more modules are located in a reactor building, each being submersed in a common, below grade cavity filled with water. For the most severe postulated accident, the volume of water in the cavity provides a passive ultimate heat sink for 3 or more days allowing the restoration of lost normal active heat removal systems. MASLWR thermal power of a single module is 150 MWt, primary system pressure 10.5 MPa, steam pressure 1.52 MPa and the net electrical output is 35–50 MWe.

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Light Water Reactor Sustainability Program: Analysis of Pressurized Water Reactor Station Blackout Caused by External Flooding Using the RISMC Toolkit

10.2172/1168617 ◽

2014 ◽

Cited By ~ 1

Author(s):

Curtis Smith ◽

Diego Mandelli ◽

Steven Prescott ◽

Andrea Alfonsi ◽

Cristian Rabiti ◽

...

Keyword(s):

Program Analysis ◽

Light Water Reactor ◽

Pressurized Water Reactor ◽

Pressurized Water ◽

Light Water ◽

Water Reactor ◽

Station Blackout ◽

Sustainability Program

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Final Environmental Impact Statement for the Production of Tritium in a Commercial Light Water Reactor

10.2172/823403 ◽

1999 ◽

Author(s):

N

Keyword(s):

Environmental Impact ◽

Light Water Reactor ◽

Environmental Impact Statement ◽

Light Water ◽

Water Reactor

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Results of reliability test program on light water reactor piping

Nuclear Engineering and Design ◽

10.1016/0029-5493(94)90022-1 ◽

1994 ◽

Vol 153 (1) ◽

pp. 71-86 ◽

Cited By ~ 9

Author(s):

K. Shibata ◽

T. Isozaki ◽

S. Ueda ◽

R. Kurihara ◽

K. Onizawa ◽

...

Keyword(s):

Light Water Reactor ◽

Reliability Test ◽

Test Program ◽

Light Water ◽

Water Reactor

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Wiped-Film Evaporators for Evaporating Alkaline Light Water Reactor Radioactive Wastes

Nuclear Technology ◽

10.13182/nt79-a16316 ◽

1979 ◽

Vol 43 (2) ◽

pp. 259-267

Author(s):

C. B. Goodlett

Keyword(s):

Radioactive Wastes ◽

Light Water Reactor ◽

Light Water ◽

Water Reactor

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Parametric Study of External Pressure on Steam Generator Tube Bends

Volume 3: Design and Analysis ◽

10.1115/pvp2012-78592 ◽

2012 ◽

Author(s):

Mitch Hokazono ◽

Clayton T. Smith

Keyword(s):

Steam Generator ◽

Parametric Study ◽

External Pressure ◽

Light Water Reactor ◽

Material Strength ◽

Steam Generators ◽

Elliptical Cross ◽

Light Water ◽

Water Reactor ◽

Steam Generator Tubes

Integral light-water reactor designs propose the use of steam generators located within the reactor vessel. Steam generator tubes in these designs must withstand external pressure loadings to prevent buckling, which is affected by material strength, fabrication techniques, chemical environment and tube geometry. Experience with fired tube boilers has shown that buckling in boiler tubes is greatly alleviated by controlling ovality in bends when the tubes are fabricated. Light water reactor steam generator pressures will not cause a buckling problem in steam generators with reasonable fabrication limits on tube ovality and wall thinning. Utilizing existing Code rules, there is a significant design margin, even for the maximum differential pressure case. With reasonable bend design and fabrication limits the helical steam generator thermodynamic advantages can be realized without a buckling concern. This paper describes a theoretical methodology for determining allowable external pressure for steam generator tubes subject to tube ovality based on ASME Section III Code Case N-759-2 rules. A parametric study of the results of this methodology applied to an elliptical cross section with varying wall thicknesses, tube diameters, and ovality values is also presented.

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