Engineering topics

Kim, Dong Sub

Publications and source records attributed to Kim, Dong Sub.

4 records

DOE OSTI2019

Synthesis and Anion Recognition Features of a Molecular Cage Containing Both Hydrogen Bond Donors and Acceptors

A molecular cage, macrobicycle 2 , containing amide and pyrrole groups as hydrogen-bonding donors and imine groups as hydrogen-bonding acceptors has been synthesized. Compound 2 was discovered to recognize tetrahedral oxyanions with high affinities, such as H 2 PO 4 – , HSO 4 – , SO 4 2– , and HP 2 O 7 3– , as well as the spherical halide anions, in chloroform. A single-crystal X-ray diffraction analysis illustrated that compound 2 formed a 1:1 complex with H 2 PO 4 – in the solid state

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗

DOE OSTI2013

Methods for forming long subsurface heaters

A method for forming a longitudinal subsurface heater includes longitudinally welding an electrically conductive sheath of an insulated conductor heater along at least one longitudinal strip of metal. The longitudinal strip is formed into a tubular around the insulated conductor heater with the insulated conductor heater welded along the inside surface of the tubular.

42 ENGINEERING↗

DOE OSTI2012

High strength alloys

High strength metal alloys are described herein. At least one composition of a metal alloy includes chromium, nickel, copper, manganese, silicon, niobium, tungsten and iron. System, methods, and heaters that include the high strength metal alloys are described herein. At least one heater system may include a canister at least partially made from material containing at least one of the metal alloys. At least one system for heating a subterranean formation may include a tublar that is at least partially made from a material containing at least one of the metal alloys.

36 MATERIALS SCIENCE↗

DOE OSTI2010

Subsurface connection methods for subsurface heaters

A system for heating a subsurface formation is described. The system includes a first elongated heater in a first opening in the formation. The first elongated heater includes an exposed metal section in a portion of the first opening. The portion is below a layer of the formation to be heated. The exposed metal section is exposed to the formation. A second elongated heater is in a second opening in the formation. The second opening connects to the first opening at or near the portion of the first opening below the layer to be heated. At least a portion of an exposed metal section of the second elongated heater is electrically coupled to at least a portion of the exposed metal section of the first elongated heater in the portion of the first opening below the layer to be heated.

Vinegar, Harold J↗