Limits on performance of irreversible thermodynamic systems

Projektinformationen

ID Finanzhilfevereinbarung: INTAS-93-1281

Startdatum 1 Oktober 1994

Enddatum 30 September 1995

Finanziert unter

• International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993-

Gesamtkosten € 0,00

EU-Beitrag € 30 000,00

Koordiniert durch

Københavns Universitet
Denmark

Ziel

This project aims to determine limits on the efficiencies of thermodynamic systems with dissipation. Such systems include heat engines, refrigerators/coolers, gas and liquid separation, and electrochemical processes. The dissipative terms may be heat resistance, heat leak, friction, heat and mass transfer coefficients, vaporization rates, etc. These limits on the thermodynamic efficiencies for irreversible processes are generalizations of the well-known Carnot efficiency for reversible processes, i.e. for processes of either infinite duration or infinitesimal rate of operation. The derived limits permit generalization of the concept of energy to irreversible systems and estimation of the impact of such systems on the environment.

At present a large number of researchers work in this field of finite-time thermodynamics. Most of the limits derived for irreversible systems have been obtained by the use of optimal control theory. It has been shown that the use of average optimisation, while drastically reducing the computational burden, is still adequate for many thermodynamic systems.

The research will use modern methods of optimal control and new computer optimisation algorithms. Questions to be addressed are: conditions for the optimal operation of irreversible processes; optimal operation of heat and mass transfer processes and of separation processes with given overall flow rate; estimation of the ecological impact of thermodynamic processes with given intensity; and a generalised concept of energy for irreversible systems.

Programm/Programme

• IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993-

Thema/Themen

• 69 - Thermal Science

Aufforderung zur Vorschlagseinreichung

Data not available

Finanzierungsplan

Data not available

Koordinator

Københavns Universitet

• EU-Beitrag: Keine Daten
• Adresse: Universitetsparken 5 ; 2100 København ; Dänemark
• Gesamtkosten: Keine Daten

Beteiligte (2)

Russian Academy of Sciences

Russland

• EU-Beitrag: Keine Daten
• Adresse: 152140 Pereslavl - Zalessky - Yaroslav Region
• Gesamtkosten: Keine Daten

Technische Universität Chemnitz-Zwickau

Deutschland

• EU-Beitrag: Keine Daten
• Adresse: 09009 Chemnitz
• Gesamtkosten: Keine Daten