The article is devoted to the analysis of the impact of the electroenergetics on the environment, as well as to the consideration of possible scenarios for minimizing the impact of electroenergetics on the ecosystem in the future, taking into account its investment prospects and benefits. The aim of the study was to develop the most likely scenario of the impact of the electric power industry on the ecosystem. The result of the study was the pessimistic, optimistic, and basic scenarios of the most likely impact of the electric power industry on the environment for the current situation in the world, the assessment of alternative sources of electricity as the main element of reducing the negative impact of electricity on the environment. The scenarios are considered by the consumer with pairwise comparisons. Understanding the relative environmental impacts of different sources of electricity is essential for developing sound energy policies and responsible investment.
A. M. LazarevModified wood was used in bearings of large Soviet-made vertical pump units on the Moscow Canal in 1986.The pumps have the following main characteristics and design features:design head H = 8.5 m, design discharge Q = 25 m3/sec, speed n = 214 rpm, accelerated speed n a = 413 rpm, power N = 3000 kW, efficiency q = 86.2%, direction of rotation, right.The pump shaft has two parts: the shaft of the impeller and an intermediate shaft. The working journals of the shafts with a stainless steel 10KhI8NgT lining have a diameter of 420 mm. The pump shafts rotate in two guide bearings.The lower pump bearing is fastened to the upper gate apparatus and consists of a body and two bushings. The upper bearing is located on the cover of the pump and also consists of a body and two bushings. Water is the working medium of the pump and simultaneously the lubricant of the lower bearing. The upper bearing is also lubriCated with water.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.