IMPORTANCE OF ENERGY MANAGEMENT IN FOUNDRIES - Polish Journal of Management Studies

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IMPORTANCE OF ENERGY MANAGEMENT IN FOUNDRIES

Abstracts > Vol 4

IMPORTANCE OF ENERGY MANAGEMENT IN FOUNDRIES

Seweryn Jarza

Abstract:

Pollution prevention is preferable to reliance on end-of-pipe pollution control. Since we look at the environment in the global sense, it is irrelevant that the emissions reductions occur at the electrical generating  station rather than at the site of the efficiency improvements. In foundries as a part of an energy intensive industry, energy accounting is necessary to determine where and how energy is being consumed and how efficient is the energy management  system. The main aim of energy management should define the areas of high energy use, energy waste and should point out areas in which energy saving can be accomplished. Energy management is very important as it deals with adjusting and optimizing energy,  using systems and procedures so as to reduce energy requirements.

Keywords: emission,  environment, pollution prevention, energy management

Introduction

Cleaner production encompasses production processes and management procedures that entail less use of resources than conventional technologies and also generate less waste and  smaller amounts of toxic or other harmful substances. It emphasizes the human and organizational dimensions of environmental management, including good plant operation to avoid deliberate or accidental discharges. Cleaner production and pollution prevention  reduce the quantities of waste and eliminate some pollutants, but treatment and disposal of remaining wastes are also required. Improved energy efficiency reduces greenhouse gas emissions in two ways:
Energy efficiency measures for on-site combustion systems (e.g., furnaces, boilers, cupolas, heat-treating ovens) reduce emissions in direct proportion to the amount of not consumed  fuel

Reductions in consumption of electricity lead to reductions in demand for electricity and, consequently, reductions in emissions from thermal electric power generating stations.
We have to remember that the key environmental issues included emissions to all environmental media; energy consumption has the first place but other environmental issues (such as consumption of raw materials, emission of noise,  vibration, heat) and other factors can't be overlooked.


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Conclusion

As it was shortly presented above, identifying energy management opportunities we can find the following broad categories:
Organizational changes - the changes in planning and scheduling production in a way that allow for a partial or across-the-board leveling of energy use, hence its better utilization;
Process changes - improvements in process equipment and technological changes that result in reduced energy consumption;
Energy efficiency of melting and possibility of fuel substitution - maximizing the efficiency of use and selecting the best source of energy (e.g., electrical power or natural gas);
Electric power management - measures resulting in reduced electricity consumption, including power demand and power factor management, and cogeneration;
Heat recovery - re-use of waste heat streams and their integration and prevention of heat losses in all forms (e.g., heat exchanger, insulation).

The initial individual list of projects should be scrutinized from several viewpoints. All available information, such as good engineering practice, experience of others, supplier  information, literature, consultants and possible synergies ought to be examined.
Monitoring energy performance helps managers identify wasteful areas of their department and lets them take responsibility for energy use. When monitoring shows that energy consumption is declining as improvements are being made, attention can be turned  to the next area of concern. Of course the main tasks of our environmental efforts can't cover the  maximizing of profitability. On fig. 3 the estimation of profit increase was shown in the situation when energy costs were reduced by 35%. We can easy  find that the less current  profit margin makes the bigger increasing of expected results.
In our present policy pollution prevention is preferable to reliance on end-of-pipe pollution control. Cleaner production encompasses production processes and management procedures that entail less use of resources than conventional technologies and also  generate less waste and smaller amounts of toxic or other harmful substances. It emphasizes the human and organizational dimensions of environmental management, including good plant operation to avoid deliberate or accidental discharges.


References

[1]   Guide to Energy Efficiency Opportunities in Canadian Foundries, available on oee.nrcan.gc.ca/cipec/ieep/newscentre/foundry/index.cfm
[2]   IEA (International Energy Agency), 2009 a, World energy outlook, executive summary. 2009, available on http://www.worldenergyoutlook.org/docs/weo2009/WEO2009_es_english
[3]   Arasu M., Rogers JL Energy consumption studies in cast iron foundries, Transactions of 57th Indian Foundry Congress, Kolkata, India, 2009
[4]   Laurence V. Whiting, Use of electricity in Canadian iron foundries, Canadian Centre for Mineral and Energy Technology, June 2000.

Streszczenie:

Globalne spojrzenie na problemy srodowiskowe pozwala stwierdzic, ze zmniejszenie emisji wynikajace ze zmniejszenia zuzycia energii ma miejsce w elektrowniach a nie odnosi sie do miejsc gdzie bezposrednio wprowadzane sa usprawnienia. Glownym celem zarzadzania  energia jest okreslenie obszarow, w ktorych wystepuje duze zuzycie energii, gdzie dochodzi do duzych strat energii oraz wskazanie takich gdzie oszczednosci energii beda mozliwe do realizacji. Odlewnie nalezace do energochlonnych galezi przemyslu wymagaja  kontroli zuzycia energii, aby mozna bylo okreslic gdzie, w jaki sposob energia jest wykorzystywana oraz jak efektywny jest system zarzadzania energia. Przedstawiono niektore aspekty zuzycia energii w odlewni oraz wskazano glowne obszary gdzie dochodzi  do strat energii oraz mozliwosci wprowadzania usprawnien. Wskazano jak zarzadzanie energia wplywa na kierunki i efektywnosc zuzycia energii a procedury wynikajace z tego systemu umozliwiaja ograniczenie zapotrzebowania na energie.




 
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