Radiant coolers and methods for assembling same

A tube cage for use in a radiant cooler, said tube cage comprising:

• a plurality of downcomers that extend substantially circumferentially about a center axis;
• a plurality of cooling tubes that extend substantially circumferentially about said center axis, wherein at least one of said plurality of cooling tubes is positioned circumferentially between an adjacent pair of circumferentially-spaced downcomers;
• and
• a plurality of platens that extend generally axially through said tube cage, said plurality of platens oriented such that at least a first of said plurality of platens is spaced a distance away from said tube cage that is different than a distance that at least a second of said plurality of platens is spaced from said tube cage.

A radiant cooler comprising:

• a vessel shell that extends substantially circumferentially about a center axis;
• and
• a tube cage coupled within said vessel shell, said tube cage comprising:
• a plurality of downcomers that extend substantially circumferentially about a center axis;
• a plurality of cooling tubes that extend substantially circumferentially about said center axis, wherein at least one of said plurality of cooling tubes is positioned circumferentially between an adjacent pair of circumferentially-spaced downcomers;
• and
• a plurality of platens that extend generally axially through said tube cage, said plurality of platens oriented such that at least a first of said plurality of platens is spaced a distance away from said tube cage that is different than a distance that at least a second of said plurality of platens is spaced from said tube cage.