English CHP: cogeneration

Transcription

1 English CHP: cogeneration Power & heat from biomass

2 Competence is our success... HERZ FACTS: 60 companies Group headquarter in Austria Research & development in Austria Austrian owner employees in over 100 countries 24 production sites HERZ Armaturen GmbH - The company Founded in 1896, HERZ has been continuously active in the market for more than 120 years. With 8 sites within Austria, another 16 in Europe and more than employees at home and abroad, HERZ is the only Austrian manufacturer that produces equipment for the entire heating and installation industry and is one of the most important internationally. HERZ Energietechnik GmbH HERZ Energietechnik employs more than 230 staff in production and sales. At the company sites in Pinkafeld, Burgenland and Sebersdorf/Styria, there is state-ofthe-art production as well as a research institute for new, innovative products. As a result, proven cooperations with research and educational institutions can be intensifi ed. Over the years, HERZ has established itself as a specialist in renewable energy systems. HERZ places a great importance on modern, costeffective and environment-friendly heating systems with the highest level of convenience and user-friendliness. HERZ for the environment All HERZ biomass systems fall below the strictest emission regulations. Numerous environmental endorsements bear witness to this. HERZ quality Our HERZ design engineers are in permanent contact with acknowledged research institutions in order to improve the very high standards continuously. 2

3 Sophisticated Boiler Systems HERZ offers boilers with a nominal capacity from 100 kw to produce warm and hotwater, saturated steam, superheated steam, hot air and hot gas as well as CHP. HERZ can offer you depending on your requirement almost every special solution. In addition to higher operating pressures as well as different insertion and installation situations we provide an optimum solution for your requirements. All boilers are designed and manufactured according to current standards. Especially for the international market HERZ also offers ASME compliant facilities. Standard Fuels HERZ offers a wide variety of different combustion systems for different fuels. Below is an overview of the various systems. We also like to test your special fuel in our own test center and offer if possible an individual solution. Combustion systems RRF SRF-S SRF-H TSRF Combustion systems RRF SRF-S SRF-H TSRF v Swarf Saw dust Wood shavings, mill chippings Chipboards, fiberboards, MDF plates Untreated wood chip Chip from landscape management Industrial wood chips Bark Shredded wood, demolition and packaging wood Energy plants (chaff) Pomace, residues of fruit juice production etc. Wood pellets Industrial pellets Turf pellets, agro-pellets RRF: under feed combustion SRF-S: step grate combustion with stoker screw SRF-H: step grate combustion with hydraulic insertion TSRF: step grate combustion for dry fuels assumes no liability for the information, Subject to technical modifi cations. 3

4 CHP systems Power and heat from biomass environment-friendly & effi cient... customized solutions... innovative technology HERZ offers as specialist for renewable energy systems a range of systems which produce electricity in addition to heat. Solutions in the power range from 30 up to 2400 kw el are offered. Due to the wide range of different systems, working media & temperatures there is a variety of possible uses. With consideration of the individual situations HERZ offers the optimal & customized energy solution for every requirement. Medium Temperature [ C] Electric power classes Energy [kw el ] Investment costs LOW TEMPERATURE SYSTEM domestic hot water ~ / 40 / 50 hot water ~ / 150 / 225 / 300 / 375 saturated steam ~ / 255 / 365 / 525 HIGH TEMPERATURE SYSTEM superheated steam ~ / 1000 / 1500 / 2000 hot air / hot gas ~ / 165 / 250 thermal oil ~ / 500 / 700 / 1000 / 1300 / 1800 /

5 CHP systems Pros Economically Energy and cost saving Generation of electric energy without additional fuel-use Overall increase in efficiency Environment friendly & resource conservation Use of waste heat Often a part of the applied energy is lost unused as heat waste. From this unused waste heat, electricity can be produced with innovative technology. As a result, energy & costs are saved and at the same time the environment is protected. Individual application possibilities CHP systems can be used in many different areas of application, such as for wood / furniture industry food industry pellets production drying processes (e.g. in agriculture) HERZ biomass boilers Following biomass systems are also suitable for CHP systems: stems: warm water boiler hot water boiler saturated steam boiler hot air and hot gas systems thermal oil systems Type Nominal capacity in kw (at W40) Container exchanger RRF SRF-S SRF-H TSRF WW HW Steam RRK 10M RRK 9M RRK 8M RRK 7M RRK 6M RRK 5M RRK 4M RRK RRK RRK RRK 1000 RRK WW = warm water, HW = hot water, 500 Steam = saturated steam RRF: under feed combustion SRF-S: step grate combustion with stoker screw SRF-H: step grate combustion with hydraulic insertion TSRF: step grate combustion for dry fuels Special solutions available on request! C C available as container version. assumes no liability for the information, Subject to technical modifi cations. 5

6 CHP systems HERZ biomass systems (warm-, hot water boilers, saturated steam boilers, hot air and hot gas systems & thermal oil systems) can be used individually for the generation of heat of various kinds: Large buildings as public buildings, hotels, agriculture, etc. local and district heatings industry & commerce as horticulture and timber processing Power It is also possible to use HERZ as CoGeneration plant for producing and Electricity. In addition warm water boilers, hot water boilers, saturated steam boilers, hot air/hot gas systems or thermal oil systems are used. Due to the generation of electricity from waste heat the overall effi ciency of the system is increased and electricity is generated in environment-friendly & resources saving way. Power Cold In addition to heat & power there is also the possibility for cooling. Here, a part of the generated heat is used to operate an absorption chiller or adsorption chiller for cooling. The simultaneous production of heat, power and cooling is thus an extension of co-generation and is called tri-gerneration. 6

7 ORC systems The ORC system (Organic Rankine Cycle - system) is a closed, thermal cycle, which utilizes thermal energy to generate electricity. The waste heat passes through a heat exchanger into the ORC module. There, the organic working medium is evaporated by the heat energy. The steam fl ows under pressure into a generator, which converts a part of the heat energy into electricity. Subsequently, the steam is cooled and liquefi ed in a condenser again and then returned to the evaporator. Pros high efficiency part load operation possible low maintenance durable easy system integration possible in many sectors environment-friendly Waste heat circuit (medium warm water, hot water, hot air, hot gas, saturated steam, superheated steam) Waste heat from different ent sources Evaporator / superheater hot water boiler, hot air & hot gas boiler, saturated steam boiler Pre-heater Turbine G Generator Condenser Working medium pump Waste heat cicruit (medium hot air, hot has) Thermal oil circuit Evaporator / superheater Waste heat from different sources Turbine G hot air & hot gas boiler Pre-heater Generator Condenser Working medium pump The waste heat can be supplied to the ORC process with different media of different temperatures. assumes no liability for the information, Subject to technical modifi cations. 7

8 ORC - warm water & hot water LOW TEMPERATURE-ORC-SYSTEM with warm water boiler ~ 97 C ~ 40 C Warmwater boiler ~ 86 C η el = 7-9% ~ 25 C LOW TEMPERATURE-ORC-SYSTEM with hot water boiler ~ 160 C ~ 40 C Hotwater boiler ~ 140 C η el = 12-14% ~ 25 C SINGLE MODE 1 for maximum electrical energy utilization from 40 C Example: 100 kw e / 560 kw th (40/25 C) ~ 160 C ~ 80 C Hotwater boiler ~ 140 C ~ 60 C SINGLE MODE 2 for maximum heat production utilization from 80 C Example: 60 kw e / 560 kw th (80/60 C) ~ 160 C ~ 80 C ~ 40 C Hotwater boiler ~ 140 C ~ 25 C ~ 60 C DUAL MODE to switch between the generation of maximum electric power or maximum thermal energy utilization from 40 C or heat utilization from 80 C Example: 100 kw e / 560 kw th (40/25 C) or 60 kw e / 560 kw th (80/60 C) 8

9 ORC - warm water & hot water Example of an ORC system with hot water: HERZ hot water boiler RRK with ORC system Generated heat: Hot water 160 C, kw th Generated electric energy (gross): 175 kw el Internal consumption of electric energy: 30 kw el /h Generated electric energy (net): 145 kw el /h Thermal energy after the ORC process: Water C, kw th Electrical effi ciency: ~13,6% (gross) Total effi ciency: ~ 90% Fuel: Wood chip W40, Calorifi c value: 2,7 kw/kg Fuel consumption: 526 kg/h Annual operating time: h/a Annual fuel consumption: t/a Annual generated electric energy (gross): MW/a Annual generated electric energy (net): MW/a Annual produced warm water: MW/a assumes no liability for the information, Subject to technical modifi cations. 9

10 CHP - saturated steam The power generation via saturated steam systems can be done with different systems: saturated steam turbine Back pressure turbine (saturated steam at 6-30 bar) Screw expander (saturated steam at 6-24 bar) Steam turbine for superheated steam (superheated steam at bar) HIGH TEMPERATURE SYSTEM Saturated steam turbine: back pressure turbine Saturated Steam Boiler Saturated steam C bar G ηel= 7-11% ~ 130 C, 1,6 bar Water 90 C Water 60 Water 80 utilization HIGH TEMPERATURE SYSTEM Saturated steam turbine: screw expander Saturated Steam Boiler Saturated steam C bar Electrical power G ηel= 6-10% ~ 130 C, 1,6 bar Water 60 Water 80 utilization Water 90 C HIGH TEMPERATURE SYSTEM Turbine for superheated steam Saturated Steam Boiler Saturated steam C bar exchanger for superheated steam Superheated steam C, bar G ~ 130 C, 1,6 bar ηel= 24-28% Water 25 Water 40 utilization Water 50 C 10

11 CHP - saturated steam Figure: saturated steam system 10 MW, hydraulic walking fl oor with chain conveyor assumes no liability for the information, Subject to technical modifi cations. 11

12 ORC - hot air / hot gas HIGH TEMPERATURE SYSTEM hot air / hot gas Variant C 700 C MIXER 350 C Economizer 150 C Air heat exchanger 520 C 210 C 100 C 100 C 80 C exchanger 80 C ηel= 17-19% 70 C 90 C utilization 150 C Variant C 700 C MIXER 280 C Economizer 150 C Air heat exchanger 520 C 210 C 100 C exchanger 80 C ηel= 17-18% 70 C 90 C utilization Hot air (cleaned) for dry processes (210 C) e.g. food industry, pellet production, agricultural drying processes 150 C 12

13 ORC - hot air / hot gas Variant C 950 C 550 C MIXER 200 C Economizer 150 C 80 C 100 C Air heat exchanger ηel= 17-19% 100 C 80 C exchanger 60 C 80 C utilization 150 C assumes no liability for the information, Subject to technical modifi cations. 13

14 ORC - thermal oil Thermal oil systems are often used in industrial processes and procedures. In addition to heat also power in a range from 300 up to 2400 MW el can be generated with a ORC process. 310 C 250 C 250 C HIGH TEMPERATURE ORC 90 C Air heat exchanger 950 C 350 C 190 C exchanger exchanger Air pre-heater 150 C LOW TEMPERATURE ORC ηel= 18-20% 60 C 250 C 130 C 14

15 ORC - thermal oil Examples of application ranges of thermal oil ORC systems saw mills Thermal oil systems Electrical power Bark Sawdust, sawing waste round timber sort debark wood processing product packaging drying Long-Distance ing Thermal oil systems Electrical power consumer pellets production Thermal oil systems Electrical power Bark Sawdust, sawing waste round timber sort debark chopping grinding drying product packaging dedusting pressing the pellets dedusting/ sieving assumes no liability for the information, Subject to technical modifi cations. 15

16 HERZ customer-oriented... Advice during the planning phase Planning of installation & chamber discharge according to customer requirements and local conditions Comprehensive services >100 countries worldwide HERZ training: for the plant operators for planners and technical offi ces for installers and assemblers as well as continuous training of the maintenance staff >120 >2600 employees years of experience We reserve the right of errors, misprint, typographical failures and technical modifi cations! Data about our products are not guaranteed characteristics. Mentioned and illustrated discharge systems are system-dependent and only available as an option. In case of discrepancies between documents with regard to the scope of supply the information in the current offer is valid. All images are representations as a symbol and serve only to illustrate our products. Your partner: d HERZ Energietechnik GmbH Herzstraße 1, 7423 Pinkafeld Österreich/Austria Tel.: +43(0)3357/ Fax: +43(0)3357/ Mail: offi ce-energie@herz.eu Internet: HERZ Armaturen GmbH Fabrikstraße 76, Backnang Deutschland/Germany Tel.: +49(0)7191/ Fax: +49(0)7191/ Mail: zentrale-bk@herz.eu Internet: HERZ biomass systems fall below the strictest emission regulations.