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A report is devoted to new Russian National standards GOST R 53630-2006 “Steel welded vessels and apparatus. General specifications” and GOST R 52857.1-2007÷GOST R 52857.12-2007 “Vessels and apparatus. Norms and methods of strength calculation”, which were published in 2007–2008. They changed 33 regulations, which were in force earlier. This report contains general description of recently developed standards, considers its structure, approaches and methods of calculation and design, main distinctions with previous normative documents. It is significant, that developed standards meet the requirement of the standard ISO 16528-1 “Boilers and pressure vessels. Part 1: Performance requirements”. The author compares new Russian standards with ASME Boiler and pressure vessel code. Section VIII, Division 1 and 2, EN 13445 “Unfired pressure vessel” and other well-known international standards. There is also a description of the software, designed in accordance with new Russian standards. Further development of normative methods of calculation and design, including those, that based on computational modeling of constructions, are discussed in the final part of the report.

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Nowadays, a stress calculation of shell and tube heat exchangers’ elements is based either on analytic methods described in ASME, TEMA, EN, GOST and other standards or on numerical modeling using FEA. The main disadvantage of the analytic methods is that they can be applied only to certain apparatuses’ designs and it is very difficult or even impossible to use them with non-typical constructions. Otherwise, such a calculation is easy to perform with modeling by FEA. However, a direct finite element simulation of several thousands of tubes, which can be designed in one heat exchanger, makes the task very time-consuming and the resulting model very big and computation-intensive. This paper examines a typical model, which includes 3.5 million nodes and more than 3 million elements. We offer a numerical analytic solution of this task, which consists in modeling of a tube bundle by an orthotropic continuum with equivalent properties. The comparison of the results of a temperature distribution calculation and the stress-strain distribution calculation using direct numerical modeling of the tubes in the tube bundle by shell elements from one hand, and of the suggested numerical analytic solution from another, shows that these results do match closely enough to practice.

Acute respiratory distress syndrome (ARDS) and respiratory failure can occur after drowning. Some of these patients do not respond to conventional mechanical ventilation and require extracorporeal membrane oxygenation (ECMO). Patients with severe respiratory failure can also develop acute right heart failure. We describe a case of a young drowning victim who developed ARDS and subsequent right heart failure. The patient was initiated on venovenous ECMO with right atrial to pulmonary artery cannulation of ECMO using the Protek Duo (TandemLife, Pittsburgh, PA, USA). The patient recovered from his ARDS and heart failure and was successfully liberated from ECMO. We will discuss the utility of ECMO in drowning victims and the use of this unique cannulation strategy to support the right ventricle in patients with concomitant respiratory failure.