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Abstract

The purpose of the work was initial modification of the construction of a commercially produced heat exchanger – recuperator with CFD (computational fluid dynamics) methods, based on designs and process parameters which were provided. Uniformity of gas distribution in the space between the tubes of the apparatus as well as the pressure drop in it were taken as modification criteria. Uniformity of the gas velocity field between the tubes of the heat exchanger should cause equalization of the local individual heat transfer coefficient values and temperature value. Changes of the apparatus construction which do not worsen work conditions of the equipment, but cause savings of constructional materials (elimination or shortening some parts of the apparatus) were taken into consideration.
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Abstract

In this article I will try to describe the lesson learnt by the corporations from the grass root movements in the cities. In the proposed analysis I will refer to the conception of recuperation and a soul of capitalism – by Luc Boltanski and Ève Chiapello. Besides it I will refer to the works of these authors who analyse the beginnings and the activism of the city grass-root movements in a context of critique of capitalism and neoliberal system.
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