LOCAL IMPACTS OF RENEWABLE ENERGY

Transcription

1 LOCAL IMPACTS OF RENEWABLE ENERGY

2 Luft- und Feuerungstechnik GmbH Hainfelderstrasse 69 A-2564 Weissenbach/Triesting Firmenbuchnummer: FN y

3 Headoffice Weissenbach/Triesting, Österreich

4 Company Personal Managing partner and majority owner Leo Schirnhofer Department chief process engineering DI Holger Knautz

5 History 1965: First furnace 1972: Automation 1991: First CHP-plant

6 History 2010: 450 employees and more than 2500 plants worldwide From concept to the realisation. Turn-key biomass plants

7 Biomass plants for: Heating Industrial processes (steam, thermal oil) District heating CHP plants (steam process/orc)

8 Ecologic and economic facts Biomass is available in almost every region Wood grows in nearly every climate new sources can be created with new concepts of land use e.g. fallow land can be used for fast-growing energy wood

9 Ecologic and economic facts Biomass is available in almost every region Collection and distribution systems, logistics and organisation required Alternative: Other resources for biomass to be utilised (demolition wood, energy crops, chicken manure )

10 Fuel samples Sunflowerhusks Pellets Sawdust Crops Bark Strip waste Elephant-grass Corn manure Industrial-chips Wood-chips Rice-husks

11 Ecologic and economic facts Biomass is added value In contrast to trading (oil, gas), production of biomass fuel is real added value. The product (pellets, chips ) is of a higher class than before. = Vertical range of manufacturing can be higher than with fossil fuels (refining only!) + +

12 Ecologic and economic facts 1. step: preparation (plantation and harvest) 2. step: upgrading/refining (chipping, pelletising ) 3. step: conversion (heat/el. power) Countrymen found agricultural cooperative societies, which own and operate plants in succession. The farmers become energy suppliers.

13 Ecologic and economic facts Biomass is security of supply Self supply possible Security by decentralised supply Possibility to change supplier real open market without gambling Independence of the world market

14 Ecologic and economic facts Biomass is renewable Very stable long-term prices shortage not expected, little impacts of the world because of the regional source No taxes or penalties or price changes due to CO2-certificates (risk of speculation)

15 Ecologic and economic facts

16 Legal regulations European union Pretends targets - CO2 savings - Energy policy - Subsidies - Guidelines - Hamonised standards - White papers

17 Pre-Standard CEN/TS Solid biofuels Fuel specifications and classes

18 Legal regulations National laws -Emission limits -Subsidies -Renewable energy feed-in tariffes -Operation of plants

19 Pollution act Different for every country, region, fuel and plant

20 Biomass utilisation Heating plants - one-family home up to district heating plants - (10) kw boiler capacity - one, two or multiple boilers - combination with gas or oil boilers (safety, reserve, peak load) - various fuels (wood chips, pellets, manure, energy crops ) possible

21 3.000 kw Single boiler plant

22 Biomass utilisation Cogeneration plants -For medium to big district heating networks -ORC technology -Steam process with backpressure turbine -Steam process with extraction/condensation turbine

23 Biomass utilisation ORC plants - appr kw heating capacity (appr kwel) - high base load (process heat) - combination with WW-boiler and gas boiler possible - various fuels possible - easy to operate - high part load efficiency

24 Biomass utilisation

25 Biomass utilisation

26 Biomass utilisation ORC module Thermooil system acc. to DIN 4754

27 3.500 kw/550 kwel ORC plant

28 Biomass utilisation steam process - with backpressure or extraction/condensation turbine (depending on heat load curve) kwel - not every fuel possible (corrosion) - High efficiency at full load - higher investment, staff and maintenance costs make steam processes attractive only for big heat demands and constant heat loads.

29 Biomass utilisation boiler - fire tube boilers up to 30 bara - water tube boilers up to 60 bara - live steam temperatures (475) C (depending on fuel)

30 Biomass utilisation steam turbine - backpressure turbine needs constant base load or coolers for minimum load - extraction/condensation turbine for higher el. power (but lower level of utilisation)

31 Biomass utilisation

32 Biomass utilisation

33 Biomass utilisation

34 Biomass utilisation

35 2 x 10,7 MW (5 MWel); 24 bar, 425 C

36 10,7 MW; 54 bar, 450 C

37 Biomass utilisation 2 x 16.2 MWth, bar 7.5 MWel, 23 MWth 10 MWth WW peak load boiler

38 Thank you for your attention!