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Orlov Evgeniy Vladimirovich -
Moscow State University of Civil Engineering (MGSU)
Candidate of Technical Scienc- es, Associate Professor, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation;
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The author compares the instant water boiling technology and the use of electric teapots in the article. Strengths and weaknesses of the instant water boiling technology and its integration into the internal water supply system are also demonstrated.
Aqua Hot 98 instant hot water dispenser is capable of heating up to 60 cups in an hour, while consuming 20 % of the electric power needed to boil the water on a stove or in an electric tea pot. Besides, the water is ready for consumption at any moment of time.
The amount of water heated by the instant hot water dispenser is the one that is needed at a particular moment of time; electric power and water consumption rates are efficient enough to guarantee substantial reduction of utility payments.
Given the fact that Aqua Hot 98 instant hot water dispenser is also capable of supplying cold filtered water, the proposed technology is more economical and ecological that bottled water supply, as plastic bottles accumulated at junkyards damage the environment.
The weakness of the proposed technology is its cost, as it is far more expensive than an electric kettle.
DOI: 10.22227/1997-0935.2012.4.195 - 199
References
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- Official web-site of InsinkErator, available at: http://www.insinkerator.ru/. Date of access: 20.02.2011.
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Zhadanovskiy Boris Vasil’evich -
Moscow State University of Civil Engineering (National Research University) (MGSU)
Candidate of Technical Sciences, Senior Lecturer, Professor, Department of Technology and Organization of Construction Operations, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoye Shosse, Moscow, 129337, Russian Federation.
The underground space is widely used in the construction in big cities of the Russian Federation. These works need the use of elevating-transfer vehicles. In this case the requirements of norms and regulations on operating safety should be strictly observed, because their breach often leads to emergency situations and injuries. The organizational and technological solutions when developing the design documentation and executing construction and assembly works should be primarily based on the stability of lifting facilities. The author states the requirements to installation of lifting tackles (cranes). The features of their installation in different operation conditions on construction sites are described. The crane stability depends on many different indicators, which are considered by the author. The calculation algorithms of crane stability are offered.
DOI: 10.22227/1997-0935.2016.5.52-58
References
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