Date of download: 12/26/2017 Copyright © ASME. All rights reserved. From: Design and Technology Development Status and Design Considerations for Innovative Small and Medium Sized Reactors J. Eng. Gas Turbines Power. 2009;131(6):064001-064001-6. doi:10.1115/1.3078786 Figure Legend: Layout of the IRIS integral primary coolant system (international consortium led by Westinghouse, Pittsburgh)

Date of download: 12/26/2017 Copyright © ASME. All rights reserved. From: Design and Technology Development Status and Design Considerations for Innovative Small and Medium Sized Reactors J. Eng. Gas Turbines Power. 2009;131(6):064001-064001-6. doi:10.1115/1.3078786 Figure Legend: Modular layout of the KLT-40S reactor plant (OKBM, Russian Federation): (1) reactor, (2) steam generator, (3) main circulating pump, (4) control and protection system drives, (5) emergency core cooling system accumulator, (6) and (7) pressurizers, (8) steam lines, (9) localizing valves, and (10) heat exchanger of the purification and cooldown system

Date of download: 12/26/2017 Copyright © ASME. All rights reserved. From: Design and Technology Development Status and Design Considerations for Innovative Small and Medium Sized Reactors J. Eng. Gas Turbines Power. 2009;131(6):064001-064001-6. doi:10.1115/1.3078786 Figure Legend: Passive heat removal paths of PBMR (PBMR Ltd., South Africa)

Date of download: 12/26/2017 Copyright © ASME. All rights reserved. From: Design and Technology Development Status and Design Considerations for Innovative Small and Medium Sized Reactors J. Eng. Gas Turbines Power. 2009;131(6):064001-064001-6. doi:10.1115/1.3078786 Figure Legend: A generic scheme illustrating potential SMR economic factor advantages (Westinghouse, Pittsburgh).

Date of download: 12/26/2017 Copyright © ASME. All rights reserved. From: Design and Technology Development Status and Design Considerations for Innovative Small and Medium Sized Reactors J. Eng. Gas Turbines Power. 2009;131(6):064001-064001-6. doi:10.1115/1.3078786 Figure Legend: A generic scheme illustrating deployment potential of some innovative SMRs. Concepts to the left are described in detail in Ref. and to the right in Ref. . The abbreviations for the SMR designs that currently show good progress toward advanced design stage or deployment are decrypted as follows: ABV—Russian abbreviation for water cooled modular power reactor, OKBM, Russian Federation; AHTR—advanced high temperature reactor, ORNL; AHWR—advanced heavy water reactor, BARC, India; CAREM—Central Argentina de Elementos Modulares, CNEA, Argentina; CHTR—compact high temperature reactor, BARC, India; HTR-PM—high temperature reactor—pebble bed module, INET, Tsinghua University, China; IRIS—International Reactor Innovative and Secure, international team led by Westinghouse; KLT-40S—Russian Federation—icebreaker type reactor 35 MW(e), OKBM, Russian Federation, a floating plant with two such reactors is under construction currently; NHR—nuclear heating reactor, INET, Tsinghua University, China; PBMR—pebble bed modular reactor, PBMR Pty., South Africa; RITM—Russian abbreviation—reactor integral type modular, OKB, Russian Federation (note that the first version will be an icebreaker propulsion reactor); SMART—system integrated modular advanced reactor, KAERI, Republic of Korea; 4S—super-safe small and simple reactor, Toshiba Corporation—CRIEPI, Japan; and SVBR-75/100—Russian abbreviation for lead bismuth fast reactor 75/100 MW(e), IPPE, Russian Federation.