stirling engine at landfill site
TRANSCRIPT
Stirling engine
at Landfill site
Multi fuel evaluation of HiTAC burner
in Stirling based CHP
August 2014
© 2014 Cleanergy AB. All rights reserved. 22
World’s leading supplier of sustainable
Stirling energy solutions:
- solar parks
- landfill gas
- biogas
- natural gas
Cost competitiveness per produced kWh
below grid parity
Made in Sweden
Turn solar energy and gas resources from
Norway to Inner Mongolia, from Dubai to
the UK, into heat and power generation
assets
Employs ~75 fulltime personnel (with 25
in R&D) at present with a focus on
continued R&D and business development
Attracting qualified investors has
enabled Cleanergy to raise approximately
€ 43 million to date
UDDEVALLA
Medium volume site
20,000 units/year
ÅMÅL
Low volume site
2,500 units/year
GOTHENBURG
Head office
SWEDEN
CHINA
(PLANNED)
High volume site
> 50,000 units/year
BEIJING
Sales office
Cleanergy: A Swedish company serving a large international market
DUBAI
Commercial
demonstration units
STOCKHOLM
Sales office
Offering two sustainable energy solutions
© 2014 Cleanergy AB. All rights reserved. 3
Stirling technology,
reinvented
© 2014 Cleanergy AB. All rights reserved. 4
Since 1816 powered a wide range of applications
Originally water pumps and domestic purposes
At present a wide range of applications from
submarines to cryocoolers.
At the heart ONE Stirling engine powered by
either solar or gas with unrivalled
reliability and long service intervals
Cleanergy and its partners offer turn-
key energy solutions including planning,
design, installation, operations &
maintenance
Cleanergy:
Over 25 years accumulated experience in
development of the Striling engine
Amassed a unique understanding of know how
and know why providing a valuable time to
market advantage
Perfecting design, manufacturing and
deployment of Stirling technology for
sustainable energy generation
© 2014 Cleanergy AB. All rights reserved. 5
Cleanergy’s CHP System - turns
low grade landfill gas into
electricity and heat
Cleanergy's unique CHP system
produces electricity and heat
from low grade methane gas at
levels down to 18% concentration
Electricity and heat lifespan of
landfills thereby extended by 15-
40 years
With a 3-5 year average ROI,
Cleanergy’s CHP engine helps
landfills turn wasted energy into
profit
Over 10 years accumulated
operational time in Landfill
installations
The British governmental body
“Environment Agency” has
estimated that there are 1,300
closed landfills in the UK alone,
each estimated to require 2-10
Stirling engines, represents a €M
100-500 revenue potential
Solutions for landfill COMPETITIVE
ADVANTAGES:Cleanergy Stirling
CHP Systems™
Landfill gas segment rapidly evolving given dormant source of energy
© 2014 Cleanergy AB. All rights reserved. 6
Selected appointed distributorsServed markets Q2 2014
Existing distribution
channels:
Sweden, Norway & Finland
(direct sales)
Czech Republic
Denmark
Baltics
Germany
France
Poland
Slovakia
Slovenia
UK
USA
Distributor signed
Distributor
negotiation initiated
Cleanergy direct
sales
Markets to be
developed
Cleanergy Gas Installations
26 000 h (2 units)
25 000 h (5 units)
5 000 h (2 units)
7 000 h (2 units)
What have the present installations taught us -
What do we need to address?
02/09/2014© 2014 Cleanergy AB. All rights reserved. 7
• How to handle variations in gas composition?
• Engine control combined with gas collection systems?
• How to increase efficiency?
• How to improve life expectancy of critical parts?
• Gas composition and quality limits?
Cleanergy Combustor - Combustion at MILD Conditions (Moderate or Intense Low oxygen Dilution)
Main principals:
High degree of air preheat 900 – 1200 K
High degree of Combustion Gas/heat Recirculation (CGR)
1100-1400 K
Main benefits:
Highly energy efficient – typically 70% compared to 35-40% for conventional combustion
Low NOx & CO emissions
Low noise levels
MILD Flame
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Gas flows:
Green: Fuel Gas
Blue: Incoming Air
(pre heated)
Red: Combustion gases
Orange: (CGR / EGR)
Combustion simulation – A multi stage approach
02/09/2014© 2014 Cleanergy AB. All rights reserved. 9
• Simulation methods (Increasing complexity):
1. 0D / 1D reaction evaluation – Ideal, turbulent, adiabatic, constant pressure (tresidence)
2. Multi step reaction evaluation - Mixing and chemical reactions occur simultaneously (tresidence & tmix)
3. Global reaction schemes for CFD (Reduction & Optimization)
4. 3D CFD combustion simulation
• Validation – Combining Simulation, Test & Data analysis
* CFD – Computational Fluid Dynamics
Validation – Tying together simulation with reality
02/09/2014© 2014 Cleanergy AB. All rights reserved. 10
• Test data - State-of-the-art testing facilities
• Installation data - Pilot plant remote monitoring
• Statistical evaluation
“Kaizen” - Continued Combustor development
Development goals:
• Increased combustion efficiency
• Increased Power output
• Capability to utilize gas with Ultra-low
Methane levels
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Research based development - Cleanergy’s involvement in research projects
Swedish projects:
• Vinnova (www.vinnova.se) - “Study of emissions in combustion of landfill gas with varying content” -
GRANTED
• SGC (www.sgc.se) – “New technologies for combustion of low grade gas from landfills or gasification with low
emissions” – GRANTED
• STEM (www.energimyndigheten.se) – “Electricity & Fuel from the Sun” – GRANTED
EU projects:
• BIOStirling-4SKA –” A cost effective and efficient approach for a new generation of solar dish-Stirling plants
based on storage and hybridization” – In progress
• H2020, SME Instruments – “Useful energy from contaminated landfill gas, USELA” – Pending Approval
• FORTISSIMO project – “Cloud-based HPC tools for Virtual Combustion Optimization” – Pending Approval
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STIRLING
REVOLUTIONS
WWW.CLEANERGY.COM
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