Ventilated system for storing high level radioactive waste
First Claim
1. A system for storing high level radioactive waste comprising:
- an overpack body extending along a vertical axis and having a cavity for storing high level radioactive waste, the cavity having an open top end and a floor;
an overpack lid positioned atop the overpack body to enclose the open top end of the cavity;
an air inlet vent for introducing cool air into the cavity, the air inlet vent comprising an annular air inlet plenum and an annular air inlet passageway, the annular air inlet plenum extending radially inward from an outer surface of the overpack body to the annular air inlet passageway, the annular air inlet passageway extending upward from the annular air inlet plenum to an opening in the floor; and
an air outlet vent in the overpack lid for removing warmed air from the cavity.
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Abstract
A system for storing high level radioactive waste. In one embodiment, the invention can be a system comprising an overpack body extending along a vertical axis and having a cavity for storing high level radioactive waste, the cavity having an open top end and a floor; an overpack lid positioned atop the overpack body to enclose the open top end of the cavity; an air inlet vent for introducing cool air into the cavity, the air inlet vent comprising an annular air inlet plenum and an annular air inlet passageway, the annular air inlet plenum extending radially inward from an outer surface of the overpack body to the annular air inlet passageway, the annular air inlet passageway extending upward from the annular air inlet plenum to an opening in the floor, and an air outlet vent in the overpack lid for removing warmed air from the cavity.
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Citations
20 Claims
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1. A system for storing high level radioactive waste comprising:
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an overpack body extending along a vertical axis and having a cavity for storing high level radioactive waste, the cavity having an open top end and a floor; an overpack lid positioned atop the overpack body to enclose the open top end of the cavity; an air inlet vent for introducing cool air into the cavity, the air inlet vent comprising an annular air inlet plenum and an annular air inlet passageway, the annular air inlet plenum extending radially inward from an outer surface of the overpack body to the annular air inlet passageway, the annular air inlet passageway extending upward from the annular air inlet plenum to an opening in the floor; and an air outlet vent in the overpack lid for removing warmed air from the cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for storing high level radioactive waste comprising:
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an overpack body extending along a vertical axis and having a cavity for storing high level radioactive waste, the cavity having an open top end and a floor, the overpack body comprising an air inlet vent for introducing cool air into a bottom portion of the cavity, the air inlet vent comprising a substantially horizontal annular air inlet plenum that circumferentially surrounds the vertical axis, the substantially horizontal annular air inlet plenum extending radially inward from a substantially 360°
opening in an outer surface of the overpack body;an overpack lid positioned atop the overpack body to enclose the open top end of the cavity, the overpack lid comprising an air outlet vent for removing warmed air from the cavity; and the air inlet vent configured so that aerodynamic performance of the air inlet vent is substantially independent of an angular direction of a horizontal component of an air-stream applied to the outer surface of the overpack body. - View Dependent Claims (14, 15, 17)
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16. A system for storing high level radioactive waste comprising:
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an overpack body extending along a vertical axis and having a cavity for storing high level radioactive waste, the cavity having an open top end and a floor, the overpack body comprising an air inlet vent for introducing, cool air into a bottom portion of the cavity; an overpack lid positioned atop the overpack body to enclose the open top end of the cavity, the overpack lid comprising an air outlet vent for removing warmed air from the cavity; the air inlet vent configured so that aerodynamic performance of the air inlet vent is substantially independent of an angular direction of a horizontal component of an air-stream applied to the outer surface of the overpack body; and wherein the overpack body comprises a cylindrical wall, a bottom block disposed within the cylindrical wall, and a base structure at a bottom end of the cylindrical wall, the base structure comprising a base plate and an annular plate arranged in a spaced relation to the base plate to form the annular air inlet plenum therebetween, the bottom block comprising a columnar portion that extends through a central hole of the annular plate and rests atop the base plate, the annular air inlet passageway formed within the bottom block and circumferentially surrounding the columnar portion.
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18. A system for storing high level radioactive waste comprising:
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an overpack body extending along a vertical axis and having a cavity for storing high level radioactive waste, the cavity having an open top end and a floor, the overpack body comprising an air inlet vent for introducing cool air into a bottom portion of the cavity; an overpack lid positioned atop the overpack body to enclose the open top end of the cavity, the overpack lid comprising an air outlet vent, for removing, warmed air from a top portion of the cavity; and the air inlet vent comprising a first section extending from an outer surface of the overpack body to a first radial distance from the vertical axis and a second section extending, from the first radial distance to an opening in the floor at a second radial distance from the vertical axis, the second radial distance being greater than the first radial distance. - View Dependent Claims (19, 20)
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Specification