The existing methods of heat saving in the designed and operating industrial units, and also methods of designing of heat exchange networks are reviewed. The efficiency of the pinch method in heat saving, its convenience for designing of heat exchange systems, and its advantages in comparison with alternative methods are shown. The basic principles of pinch analysis, the sequence of performing of pinch analysis in an industrial unit, and difficulties possible during carrying out of pinch analysis are described. Data concerning saving rate of pinch analysis in the leading world companies are presented. Modern upgrades to this method are reviewed.
The research cites four reasons for failure of power equipment (PE) and shows that the refusal may be caused by blame of supplier staff, or operating organization or entity issuing the permit for the extension of operating life in excess to PE established by supplier. The example of the power transformer describes the basic requirements for the main documents governing the management of the works at various stages of the life cycle of PE. The expediency of building a unified information system for tracking the exploitation process of PE, in which each PE will have its own card, which, in chronological order stores the documents certifying the results of work in all phases of the PE life cycle. Only this case allows to create in the correct legal basis the establishment of the failure causes and to address the issue of the culprit.
Article covers specifics of energy industry & describes current market conditions. Company development strategy covers value based approach. Based on the principles of balanced and process-oriented approaches company’s development management system is introduced in order to compete in modern market conditions. Balanced scorecard system is proposed.
The estimations of possible and expedient scales of using wind power plants (WPP) in Russia for the liquid gas production are given in the paper. The results are based on three points. The first is the required increase of energy efficiency and equipment of Russian oil-gas industry in connection with the realization of its program’s development. The second is the standards of energy equipment of liquid natural gas production, and the third is the revealed wind resources and technical-economical potential for the energy supply in many regions of Russia. According to the calculated results the total capacity and annual electricity production of WPP, economically expedient for the use in liquid gas production in Russia, may reach 21 GW and 70 billion kWh.
REDUCING ENERGY LOSSES IN THE NETWORK FOR REPLACING UNREGULATED DRIVE CENTRIFUGAL PUMPS FOR FREQUENCY-REGULATED
The paper considers a simplified method of estimating the reduction of power losses and power in an electrical network by replacing unregulated asynchronous motor centrifugal pumps on a variable frequency electric drive or self-controlled motor.