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BIOMASS GASIFICATION
At I/S Skive District Heating’s site on Thorsvej 11 in Skive a faint
rumbling sound emerging from the large, newly erected building reveals
that the gas engine plants, which have been installed behind the
beautiful building fronts covered in pre-oxidized copper, are in
service. It is however not the gas engines that provide the largest
news value, but the plant that delivers gas to the engines. The gas
is delivered by on the world’s largest “fluidized bed" gasification
plants designed for gasification of biomass. Behind this accomplishment
lies a unique scope of developments that has been both comprehensive
and extensive, as the development of the gasification plant influences
all element of the CHP central including the building construction,
engine plant development and almost all other units connected the
plant. In return I/S Skive District Heating now has a unique opportunity
to meet the climatic challenges of the future…read
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MERGER OF DISTRICT HEATING COMPANIES
SRising natural gas prices, stricter environmental legislation and
a fluctuating population are all conditions that are challenging
the operating economy for district heating companies in Denmark.
One of the more extensive solution possibilities, which meets these
challenges and which is taking starting to occur around the country,
is a complete merger of adjoining district heating companies following
the motto ”union equals strength”. The mergers provide new possibilities
for the investment in alternative technologies or the utilization
of alternative fuels...read article |
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CO2 TRADE
Just about a decade ago most countries in the world signed an international
agreement and thereby established the "United Nations Framework
Convention on Climate Change" (UNFCCC). An organization, which
has the clear goal of responding to the increasing climate challenges,
which a rising number of researchers, institutions and government
organs around the world agree that we need to counter. The agreement
was the Kyoto Protocol and became the basis for the creation of a
globally founded system to lower the world’s emission of carbon dioxide
and other harmful gasses. This system, however, is more than “another
tax on the industry’s emissions”, as it is a "cap and trace" system.
The system provides possibilities for sale and purchase of quotas
or investment in foreign environmental projects, as an alternative
to investments in personal environmental technologies in personal
plants, all of which gives Danish and foreign energy producers- and
consumers a large range of new possibilities...read
article. |
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DISTRICT COOLING - THE NEW DISTRICT
HEATING?
The technical principal behind district cooling has been known for
many years and the name of the technology pretty much says it all:
District Cooling = District Heating, just in reverse. The technological
and operations economical reality behind the term is however more
complex and is the main reason for why presently there are only two
central district cooling plants in Denmark one in Hjørring and one
in Løgstør. From the beginning AAEN has been involved with the establishment
of the districts cooling plant for Løgstør District Cooling, which
is a newly formed daughter company of Løgstør District Heating A.m.b.a...read article |
JI & CDM PROJECTS
The project possibilities under the Kyoto Protocol include Joint
Implementation (JI) and Clean Development Mechanism (CDM) projects.
JI projects are environmental projects mainly established in industrialized
countries that have a quota registration system and procedures for
the transfer of emission rights. CDM projects, on the other hand,
encompass environmental projects mainly in developing countries,
which do not yet have a quota registration system or procedures.
One of the best known and widespread project technologies are landfill
gas plants, where the methane gas produced by the landfill site that
will otherwise be emitted into the atmosphere, is collected and burnt
for energy purposes, in order to save the atmosphere from a considerable
green house gas (GHG) burden…read article |
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NET REGISTRATION & DISTRICT HEATING OPERATION OPTIMISATION
The piping network constitutes the largest investment for district
heating companies and is the crucial connection between production
and consumer. A detailed and through registration of the piping network
is the foundation of al renovation plans and energy optimization
plans for district heating companies. Heat loss in the supply system
constitutes a considerable part of the operation costs for the heating
plants. This loss can however be reduced considerably by the use
of modern net registration and optimization programs. AAEN are involved
in development projects, where network models and iteration programs
have greatly improved the control and reduction of heat loss. Therefore
large savings can be reached with programs like DFF-MAP Press…read article |
BIOGAS IN THE AUSPICES OF DISTRICT HEATING
The district heating sector has begun to show interest in including
biogas plants in their plant portfolio. This is mainly due to the
very good climate characteristics of the technology, as well as the
fact that the price for green electricity based on biogas is now
guaranteed at minimum 74.5 kr. / MWh. In spite of the fact that the
biogas plant industry has been standing very still in Denmark for
the last decade, the technology has still managed to evolve greatly.
Because of the long time operation experience that has been achieved,
the technical basis for obtaining stable and economic operation is
now much better than when the technology was first introduced to
the sector. AAEN is involved with various projects concerning the
implementation of biogas plants for the district heating sector,
where the biogas industry can benefit from the technical expertise
and experience, which the district heating companies possess, and
the economic safety the corporation structure of district heating
companies provides both for the biogas plant and the farmers involved...read article |
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NEW BIOMASS BOILER PLANT
AAEN has worked with biomass boiler plants for the utilization of
wood pellets, wood chips and straw. Regardless of whether the plant
investments is brought on by an increase in capacity of an existing
boiler plant or of the establishment of whole new biomass boiler
plant, there are a lot of considerations to be made. Plant dimension
and choice of technology are important subjects, but in addition
include other areas, like the arrangement and building architecture
and future possibilities for the utilization of alternative fuels
can have grate advantages. Especially the last issue can have a larger
effect than first expected, since biomass is projected to become
a desired resource in the near future...read article |
UDVIKLINGSFINANSIERING
The development of energy technology and systems is often a time
consuming and costly activity. At the same time it is crucial that
the development performed both in reference to export of energy technology
and in reference to the accommodation of the climate challenges.
There exists a wide variety of funding programs that supports the
development of energy technological, both in Denmark, e.g. EUDP and
Danish District Heating F&U account, and internationally, e.g.
the EU's Frame Program. AAEN has for many years worked with the application
for and administration of the funds from a wide variety of foundations...read article |
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GEOTHERMAL ENERGY
Geothermal technology is at the very front as a possible supplier
of lasting and climate friendly energy for energy supply of the future.
Primarily because of the very low operational costs and the very
low environmental impact of the plant operation, attributes that
makes geothermal plants are a very interesting technology, especially
at a European level. AAEN has been part of the creation of the geotechnical
plant in Zakopane, Poland and is currently working on expanding the
plant with a new drilling, partially funded by the sale of carbon
dioxide quotas...read article |
NETWORK REGISTRATION & DRINKING
WATER
The Danish drinking water is a world class high and constitutes
a unique resource that we must protect. The supply of drinking water
is one of our most vital supplies and paramount to a healthy society.
It is therefore very important to secure the quality of water all
the way from drilling to tap. New possibilities of today’s piping
net work models and entail that we can supervise the quality of the
water and find the optimal zoning options for the network and maintain
better control of piping network and the water production. 3d network
models can be built with modeling programs such as AQUIS. In Korsør,
among other places AAEN has…read article |
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THE ARCHITECTURE OF TECHNIQUE
It’s a common opinion that the main purpose of architecture is to
build fancy (and expensive) houses. In reality the trade encompasses
much more. Fundamentally you might say that architecture is about
building smart and have a holistic approach to the tasks at hand;
two activities, which in principal cost nothing. To build smart could
include activities like involving how a building fase material will
look in five to ten years and not just anew or whether staff facilities
are cleverly designed compared to the technical plant installation.
Having a holistic approach entails you incorporate the neighboring
buildings and installations in you building planning and seek to
incorporate future plant development in…read
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WASTE MANAGEMENT STRATEGY PLANNING
Denmark has a unique waste management system, where the main part
of the waste is utilized through recycling and energy production,
which benefits the environment and the society. In fact less than
10% of the waste is deposited and special care is given to toxic
waste. These results have been reached through both specialized collection
systems adapted to local conditions and through treatment systems
adapted to each waste fraction. In the light of experiences with
the development of waste manage systems in Denmark, AAEN has been
able to export this knowledge and has prepared and implemented systems
adapted to local conditions in Zakopane, Poland, among other places…read article |
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