N0. 3 / 2014 INTERNATIONAL MAGAZINE ON DISTRICT HEATING AND COOLING POLAND DBDH - direct access to district heating and cooling technology www.dbdh.dk CONTENTS 4 THE COLUMN 6 AERIAL THERMOGRAPHIC SURVEY OF DISTRICT HEATING SYSTEMS 9 HEATING STORAGE AND HEAT PUMPS - CONTRIBUTION TO ENERGY EFFICIENCY 14 DISTRICT HEATING AND COOLING - AN INTEGRAL PART OF THE SMART CITY 16 DISTRICT HEATING IN POLAND 19 INTERVIEW: THE IMPORTANCE OF DISTRICT DISTRICT HEATING FROM A-Z RELY ON 50 YEARS OF EXPERIENCE IN ALL DISTRICT HEATING APPLICATIONS 16 CHP POWER PLANT SUB-STATION BOILER HOUSE CONSUMER CONNECTIONS MAIN PUMPS DISTRIBUTION PUMPS BOILER SHUNT PUMPS PLATE HEAT EXCHANGE FLOW FILTER PUMPS PRESSURE HOLDING SYSTEM LULL HEAT PUMPS P4 THE COLUMN By Lars Hummelmose, Managing Director, DBDH District heating not only provides green and efficient energy but also local employment. This is because district heating can be produced from many different energy sources. In many countries and cities, district heating is still produced b 10% Better heat transfer Thanks to our patented Micro PlateTM technology Discover a heat exchanger uniquely developed for district heating Compatibility and forward-thinking are at the core of intelligent design. With the next generation of Danfoss plate heat exchangers, weve developed revolutiona P6 By Emrah Øztunc, Engineer and & Specialist, IT Automation, Energy, COWI and Martijn van Lier, Martijn van Lier, Stadsverwarming Purmerend AERIAL THERMOGRAPHIC SURVEY OF DISTRICT HEATING SYSTEMS Thermographic image of Purmerend City - 2013 The second purpose was to recalibrate the long-term ass P7 Thermographic photography from the ground is very time consuming for bigger supply networks. Also, many areas may not be accessible (e.g. private land areas unreachable by car or foot). One method, which has been used in Purmerend, is to add a non-toxic radioactive gas to the district heating wa P8 Another example that was found in Purmerend was a hotspot as shown on the centre of Figure 3. This could look like a heat loss coming from the district heating pipes. In this case we see a drainage canal that possibly comes from the district heating pipe next to it. It is clear that there is qui P9 By Morten Hofmeister, Head of Innovation Projects, Grøn Energi, Dansk Fjernvarme HEATING STORAGE AND HEAT PUMPS - CONTRIBUTION TO ENERGY EFFICIENCY In the future energy infrastructure in Denmark and other countries, an increasing share of fluctuating power generation from wind turbines and sola P10 TTES Storage medium Water Heat capacity in kWh/m3 60 - 80 PTES BTES ATES Water / Stone Water *) Earth / rock Sand / water 60 - 80 15 - 30 30 40 3 5 m3 2 3 m3 Natural water layer with high hydraulic conductance (kf 10 -5 m/sec). Dense layers with low hydraulic conductance above a P11 Heat pumps For the electric driven heat pumps, it is clear that the technology is relatively new and unknown in a district heating context. Therefore, installation and commissioning of heat pumps for some of the first plants proved to be a little more extensive than expected. For electric drive P12 Opportunities It has been assessed that: Steel tanks are a proven technology that is still in use in district heating plants with no need of major changes. However, use of the district heating transmission network as extra storage should be investigated. Pond heat storage is an inexpensive st P13 System solutions Tomorrows heating, cooling and electricity facilities will to a large extent be hybrid systems composed of e.g. heat pumps, combined heat and power engines, solar and storage. Optimal operation of the systems should take into account the heat demand, electricity markets, weathe P14 Brædstrup District Heating Company Gas generators Solar and season heat storage Electricity to grid - overview of the energy flow Heat (approx. 85 o C) Boilers 16.000 m2 solar heat plant Heat Heat exchanger Electricity (wind power a. o. sources) Heat Heat pump Accumulating tanks (Day P15 Solar With the increased focus on environmental issues, Brædstrup District Heating Company decided as the first step towards a Smart City concept to integrate solar energy in their production facilities. In 2007, the first 8,000 m2 of solar collectors were connected to the district heating netw P16 FOCUS POLAND DISTRICT HEATING IN POLAND From Euroheat & Powers publication Country by Country / 2013 Survey, chapter on Poland Fuel use for district heating over the last 10 years The structure of fuel consumption in the Polish heating sector has not changed significantly in the last ten year P17 National legislative framework having an impact on district heating The most important legislation, on which Polish District Heating is based, include: Energy Law - the Act of 10 April 1997 together with a number of renewals, with the last one made in September 2011. This Act is the most impor P18 Another important problem for the development of systems are the outstanding legal issues concerning the foundation of linear infrastructure on land belonging to a third party, which lead to a range of problems during the operation, modernisation and expansion of the network. Since a short time P19 FOCUS POLAND THE IMPORTANCE OF DISTRICT HEATING IS INCREASING An interview with Bogusław Regulski, deputy chairman of the Polish District Heating Board, by Ursula Wojciechowska, editor-in-chief, Czysta Energia What is the position and role of district heating in Polish economy and EU low-emi P20 What threats and challenges for district heating do you see? There are more and more challenges, as well as threats. Looking at the legal regime currently being shaped in the EU, we may understand we are just at the beginning of the road. A few words on challenges. We need to face ecological li P21 GREENING ENERGY IN POLAND FOCUS POLAND By Rasmus Aaen, AAEN A/S, Project Manager & Partner and Sune Holm Hansen, AAEN A/S, Project Manager & Partner It has been 10 years since we started developing green energy projects in Poland and one thing is for sure; it has been a bumpy ride. The questi P22 As you can see, these projects have had substantial positive impact on the environment in Poland. However, of more interest to the future Renewable Energy Solutions (RES) in Poland, they have helped strengthen the green energy market in Poland significantly. The ground for this claim is our own P23 The strategic planning encompasses the creation of a company strategy that secures the DH Company for future challenges, e.g. by making the DH production and utilization smarter, with RES goals such as: - 100 % CO2-neutral energy production (biomass DH & CHP, wind, solar, etc.). - Energy effici P24 POLAND ADVANCES ON THE PATH OF GROWTH FOCUS POLAND By Anne Andreassen, Chief Analyst, EKF Poland's story is about considerable growth rates, political clout and a relatively strong economy. But before Poland can really join the group of top European economies, it needs to reduce the high une P25 Business In general, Poland has strong institutions and an efficient banking sector. The Polish currency, the zloty, is stable, but it is a good idea to be alert to currency matters when trading in Poland. Poland has a good business culture, but there is still some corruption, although this is P26 FOCUS POLAND POLAND: A FOCUS MARKET By Pia Zimmermann, Export Manager, DBDH Poland has been a focus market for DBDH for many years. As far back as in 1997, DBDH and IGCP signed the Agreement of Cooperation securing the mutual benefit for the organisations and companies in the district heating P27 NEW MEMBER OF DBDH NEAS ENERGY Neas Energy is an independent energy asset management company with activities on the European energy markets. The companys head office is in Aalborg, Denmark and regional offices are located in London, Hamburg and Stockholm. The core business model is centered on P28 MEMBER COMPANY PROFILE: AAEN CONSULTING ENGINEERS Building energy solutions to fit the need of the modern society is a complex task involving many actors. Especially in the DH sector there is a great need for overall planning and consulting with integration of diverse renewable energy sources P29 The will to think innovatively and focus on solutions of the future is just as strong on the Danish market. According to Rasmus Aaen, the main goal in AAEN is pretty simple and can be summed up in the company vision: To pioneer the improvement of our climate and to work for a visionary utilizat P30 LIST OF MEMBERS Aaen Consulting Engineers Phone +45 8617 5055 Consulting engineers and planners www.aaenas.dk ra@aaenas.dk Dall Energy Phone +45 2987 2222 Aalborg Engineering Phone +45 9631 3950 Supplier of boilers and boiler systems Fax +45 9631 3951 ae@aalborg-engineering.dk ww P31 Hydro-X Phone +45 9828 2111 Boiler water treatment Fax +45 9828 3021 info@hydro-x.dk www.hydro-x.dk Ross Engineering Høje Taastrup Fjernvarme Phone +45 4355 3010 Municipal district heating supply htf@htf.dk www.htf.dk Saseco isoplus Denmark Phone +45 6441 6109 Preinsulated piping s Mediegruppen 1778 Your savings add up Comparison of CO2 emissions KTon 3.0 CO2 2.5 20% 0.51 2.0 1.5 1.0 25 52% 1.06 80% 2.00 Pipe pair Steel, trad. DN: 65 Serie 2 Pipe pair w. diff. Steel, conti DN: 65 Series 2 58% 1.44 TwinPipe Steel, trad. DN: 65 Series 2 Heat loss 10 48% 1.20 Twin