Methods for industry to measure and improve the energy efficiency of utility systems

I. Hippinen, P. Ruohonen, L. Sivill, J. Federley, Juha Hakala, Jussi Manninen, P. Ahtila

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Industrial utility systems, such as electricity, steam and condensate systems, cooling systems and compressed air, are often considered only as resources to the core production process and may therefore be overlooked by managers and operators in terms of improvement. However, the optimisation of the utility systems may have great importance to energy efficiency and profitability. Aalto University and VTT Technical Research Centre of Finland have carried out a two-year study where the target has been to test and develop methods for industry to measure and improve the energy efficiency of utility systems. This paper gives a short overview of the most important results of the project. Possibilities of different process integration and optimisation methods to analyse and improve the energy efficiency of process industry have been tested. A simulated mechanical pulp and paper mill has been used as a test environment. The mill contains one thermo mechanical pulp (TMP) line and one paper machine. The methods included primary energy consumption with different process alternatives, the pinch, advanced pinch and exergy pinch methods and entropy analysis. In addition, pinch and advanced pinch methods have been used in a case study of an existing mill which produces paper on three paper machines. The mill has three pulp lines; two TMP lines and one DIP line. In the final phase of the project, two interview studies were carried out. The first study focused on companies in the process industry and the latter on engineering and suppliers of the utility systems. The purpose of these studies was to view drivers for and barriers to energy efficiency in the opinion of the process industry and its most important utility system, technology and service providers. The results are used for focusing future research and development and energy policies.
Original languageEnglish
Pages (from-to)349-354
JournalChemical Engineering Transactions
Volume21
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed
Event13th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2010 - Prague, Czech Republic
Duration: 28 Aug 20101 Sep 2010
Conference number: 13

Fingerprint

Energy efficiency
Thermomechanical pulp
Industry
Mechanical pulp
Energy policy
Exergy
Compressed air
Steam
Cooling systems
Pulp
Mathematical operators
Profitability
Managers
Entropy
Energy utilization
Electricity

Keywords

  • energy efficiency
  • cold storage
  • compressed air
  • cooling systems
  • paper making
  • thermomechanical pulp

Cite this

Hippinen, I. ; Ruohonen, P. ; Sivill, L. ; Federley, J. ; Hakala, Juha ; Manninen, Jussi ; Ahtila, P. / Methods for industry to measure and improve the energy efficiency of utility systems. In: Chemical Engineering Transactions. 2010 ; Vol. 21. pp. 349-354.
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Methods for industry to measure and improve the energy efficiency of utility systems. / Hippinen, I.; Ruohonen, P.; Sivill, L.; Federley, J.; Hakala, Juha; Manninen, Jussi; Ahtila, P.

In: Chemical Engineering Transactions, Vol. 21, 2010, p. 349-354.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Methods for industry to measure and improve the energy efficiency of utility systems

AU - Hippinen, I.

AU - Ruohonen, P.

AU - Sivill, L.

AU - Federley, J.

AU - Hakala, Juha

AU - Manninen, Jussi

AU - Ahtila, P.

N1 - Project code: 24587

PY - 2010

Y1 - 2010

N2 - Industrial utility systems, such as electricity, steam and condensate systems, cooling systems and compressed air, are often considered only as resources to the core production process and may therefore be overlooked by managers and operators in terms of improvement. However, the optimisation of the utility systems may have great importance to energy efficiency and profitability. Aalto University and VTT Technical Research Centre of Finland have carried out a two-year study where the target has been to test and develop methods for industry to measure and improve the energy efficiency of utility systems. This paper gives a short overview of the most important results of the project. Possibilities of different process integration and optimisation methods to analyse and improve the energy efficiency of process industry have been tested. A simulated mechanical pulp and paper mill has been used as a test environment. The mill contains one thermo mechanical pulp (TMP) line and one paper machine. The methods included primary energy consumption with different process alternatives, the pinch, advanced pinch and exergy pinch methods and entropy analysis. In addition, pinch and advanced pinch methods have been used in a case study of an existing mill which produces paper on three paper machines. The mill has three pulp lines; two TMP lines and one DIP line. In the final phase of the project, two interview studies were carried out. The first study focused on companies in the process industry and the latter on engineering and suppliers of the utility systems. The purpose of these studies was to view drivers for and barriers to energy efficiency in the opinion of the process industry and its most important utility system, technology and service providers. The results are used for focusing future research and development and energy policies.

AB - Industrial utility systems, such as electricity, steam and condensate systems, cooling systems and compressed air, are often considered only as resources to the core production process and may therefore be overlooked by managers and operators in terms of improvement. However, the optimisation of the utility systems may have great importance to energy efficiency and profitability. Aalto University and VTT Technical Research Centre of Finland have carried out a two-year study where the target has been to test and develop methods for industry to measure and improve the energy efficiency of utility systems. This paper gives a short overview of the most important results of the project. Possibilities of different process integration and optimisation methods to analyse and improve the energy efficiency of process industry have been tested. A simulated mechanical pulp and paper mill has been used as a test environment. The mill contains one thermo mechanical pulp (TMP) line and one paper machine. The methods included primary energy consumption with different process alternatives, the pinch, advanced pinch and exergy pinch methods and entropy analysis. In addition, pinch and advanced pinch methods have been used in a case study of an existing mill which produces paper on three paper machines. The mill has three pulp lines; two TMP lines and one DIP line. In the final phase of the project, two interview studies were carried out. The first study focused on companies in the process industry and the latter on engineering and suppliers of the utility systems. The purpose of these studies was to view drivers for and barriers to energy efficiency in the opinion of the process industry and its most important utility system, technology and service providers. The results are used for focusing future research and development and energy policies.

KW - energy efficiency

KW - cold storage

KW - compressed air

KW - cooling systems

KW - paper making

KW - thermomechanical pulp

U2 - 10.3303/CET1021059

DO - 10.3303/CET1021059

M3 - Article

VL - 21

SP - 349

EP - 354

JO - Chemical Engineering Transactions

JF - Chemical Engineering Transactions

SN - 1974-9791

ER -