OPTI_ENERGY Centre of Excellence Optimization, Simulation and Environmental Impact of Energy Systems and Processes

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1 OPTI_ENERGY Centre of Excellence Optimization, Simulation and Environmental Impact of Energy Systems and Processes European Community Coordinator: A. Szlęk Scientific and technical coordination, dissemination Coordinator: R.A. Białecki Deputy: A. Szlęk Polish Steering Committee International Steering Committee International Advisory Board Coordinator: A. Ziębik Coordinator: J. Skorek Coordinator: R. Wilk Coordinator: A.J. Nowak Coordinator: J. Kozioł Coordinator: S. Postrzednik Energy management, system and energy analysis in heat engineering and optimization of energy systems Cogeneration and eco-buildings Low emission high temperature air combustion Mathematical modelling and optimization of energy conversion and heat transfer processes Communal energy policy, cooperation with local government International PhD Studies

2 OPTI_ENERGY Centre of Excellence Optimization, Simulation and Environmental Impact of Energy Systems and Processes Work package 1 Thematic programme: Cogeneration and ecobuildings Co-ordinator: Janusz Skorek

3 Division of Thermodynamics and Gas Energy Sample Research Fields: Thermodynamic analysis and optimisation of gas supplied co-generation and trigeneration CHP systems Modelling of thermal processes Balances of thermal technological processes Energy and exergy analysis of thermal processes and heating systems Economics of gas energy heat and power systems Distribution of gas fuels Thermodynamic and economic analysis of heat pumps Thermodynamic analysis of humid air gas turbines Economic analysis of utilisation of gas fuels in heating systems Numerical methods in heat and mass transfer Inverse problems in heat and mass transfer

4 ANALYSIS OF ENERGY TECHNOLOGIES: Small scale co-generation units CHP distributed heat and power generation, Energy utilisation of special gases (biogases, coal-methane), Bi-fuel (coal and natural gas) power plants and co-generation plants, Repowering of existing coal fired power plants Tri-generation plants Load analyses of buildings and industrial energy final consumers Simulations of the CHP modules operation ENERGY SAVINGS AND MENAGEMENT: Low energy heating and power systems for buildings, Technical and economical optimisation of CHP plants, Monitoring and optimisation of energy consumption in industry

5 Energy analysis of the small scale co-generation units CHP - distributed heat and power generation KOMIN 120 O C Odzysk ciepła ze spalin Hot water and steam production GAZ POWIETRZE ~500 O C O Woda grzewcza 90 C Odbiorniki ciepła Chłodnica płaszcza wodnego i doładowania mieszanki Woda powrotna 50 O C Chłodnica oleju Industrial drier paper mill Microturbines technologies

6 Energy utilisation of special gases (biogases, coal-methane) CHP sewage gas CHP landfill gas CHP integrated with biomass gasification CHP coal methane (trigeneration system)

7 Tri-generation CHP units Bi-fuel (coal and natural gas) power plants and co-generation plants Tri-generation with absorption chillier, e.g. coal mines applications (reciprocating engine)

8 Example: P & W + N = N + N + Q& + Q& d Energy balances and modelling of small-scale cogeneration systems G D s CHP D S Simulations of the CHP units operation

9 Example: Load analyses of buildings and industrial energy final consumers Winter week-day (28 January) Electric power load, kw hour electricity load heat load Heat load

10 Example: Low energy heating and power systems for buildings Optimization of the heating water temperature in installation: use of low temperaure heating systems with heat pumps BCHP technology: Building Cool, Heat and Power annual energy consumption, GJ /75 C 70/55 C 50/35 C 38/23 C heating water temperature heat pump (direct) heat pump (primary) heat pump (cumulative) boiler (direct and primary) boiler (cumulative) Tri-generation system for buildings applications with gas mictroturbine

11 Technical and economical optimisation of CHP plants: optimal sizing and mode of operation Computer codes for CHP plant simulation and optimization Program flow controls Energy demand data Detailed heat and electricity load profiles or representative average load profiles for typical days in the year Time zones definition STAR T READ DATA READ DATA READ DATA To correct energy demand data? Avearage statistical data Configuration of the site energy system NO Equipment performance data source Program's database READ DATA READ DATA To perform load duration curves? User defined Gas turbine used in the system configuration NO NO READ DATA YES Montly average ambient temperature READ DATA Fuel and electricity costs MAIN CALCULATION MODULE calculation of the system performance every 15 minutes in the period defined by a user Gas turbine power and efficiency correction factors due to ambient temperature variations Cumulative energy figures PRINT RESULTS Performance of the system in every 15 minutes for the period of time defined by a user Real energy consumption read from site meters YES READ DATA Correction of the energy demand data YES Computation of the load duration curves Economical data, finasing options READ DATA ECONOMICAL ANALYSIS 12 monthly load duration curves and annual load duration curve PRINT RESULTS STOP PRINT RESULTS NPV, IRR, PBP, DPBP, Configuration characteristics

12 Example of CHP optimal sizing Electricity Tracking operation - ET NPV, US$ Ė S. E G Nominalna moc cieplna silnika, MW energia el. 40 US$/MWh energia el. 50 US$/MWh energia el. 45 US$/MWh energia el. 35 US$/MWh B1 B2 G Gas engine NPV, US$ Heat tracking operation - ET Nominalna moc cieplna silnika, MW energia el. 40 US$/MWh energia el. 50 US$/MWh energia el. 45 US$/MWh energia el. 35 US$/MWh

13 Monitoring and optimisation of energy consumption in industry Computer package for co-ordination of energy and mass balances in industrial plants: electricity balance, steam balance, water/sewage balance On-line operation with monitoring system CANCEL START bilans.exe okno startowe OK wybór medium CANCEL STOP Application in paper mill energia elektryczna ciepło woda i ścieki kotły parowe K1 K2 K3 KONIEC definicja modelu NIE TAK punkty pomiarowe MPa kolektor pary swieżej 4038 uruchom preprocesor pobierz dane z baz danych DALEJ niewiadome błędy zmiennych niewiadome 4067 stacja redukcyjno - schładzajaca G wsr turbina parowa przeciwprężna podgląd wczytanych danych obliczenia Cancel TG2 korekta wczytanych danych OK MPa obliczenia bilansowe PROCESOR generator raportów tekstowych generator raportów EXCEL STOP G wsr3 4043

14 Laboratory for computer aided modelling of gas energy systems and processes GE Gate Cycle 5.4 package

15 Sample energy analysis of complex gas turbines systems Humid Air Turbines Co-generation system Wet Compression Gas Turbines Technology Paliwo woda WC N WR gaz KS KO S K S T G CH SN SW T G OC Woda pow. Spaliny Powietrze air g k k J/ a l w a ś ci wł P raca t g= 1300 C η t g= 1200 C η % η ś ć o n w a pr S sprawność układu, % t = 10 C t = 15 C t = 20 C t = 25 C t = 30 C t = 35 C Stosunek sprężania Energy indices of HAT strumień wtryskiwanej wody, kg/s

16 Laboratory of internal combustion engines

17 Off-campus laboratory of internal combustion engines at Towarowa 5 Office and classroom building Laboratory building

18 Didactics and student s life