N0. 1 2013 INTERNATIONAL MAGAZINE ON DISTRICT HEATING AND COOLING DISTRICT COOLING DBDH - direct access to district heating technology www.dbdh.dk CONTENTS Focus DISTRICT COOLING On the cover: Copenhagen in the winter 4 THE COLUMN 5 Maabjerg bioenergy plant 8 27 childcare institutions in the municipality of Odense protected from damage from leaks and seepage from the water and heating installations TVIS Multicity District Heating 10 DEMAND MAGNA3 MAGNA3 is more than a pump. Its a circulator, a pump throttling valve and a heat energy meter, all in one reducing the need for separate pump throttling valves in the system. Offering over 150 different single and twin circulators for heating, cooling, GSHP systems and domestic hot w P _ 4 COLUMN The By Lars Hummelmose, Managing Director, DBDH District cooling is not only a reliable, efficient, environmental District cooling offers benefits to every link in the chain: friendly solution for the rising need for air condition but it is The end-consumer, the utility company a P _ 5 MAABJERG BIOENERGY PLANT Text originally published in Fjernvarmen by Flemming Linnebjerg Rasmussen, Danish District Heating Association. Translated and adapted by Kathrine Windahl, DBDH Denmarks largest bioenergy plant is now in use and supplies Here 200 million cups of cream cheese are pro P _ 6 MAABJERG BIOENERGY PLANT The location near the Maabjerg CPH Plant means that there The process has proved to be more expensive and demanding is a boiler system nearby, which can buy the biogas. Therefore than expected. Therefore, to begin with, only one receiving Maabjerg Bioenergy does P _ 7 THE PLANT IN NUMBERS: 650,000 tons of manure / biomass to be treated annually 17.8 million m3 of biogas is produced annually The energy efficiency is equivalent to the heat consumption of 5,388 homes and electricity consumption of 14,381 homes CO2 emissions reduced by 50,000 tons Reduces P _ 8 When the alarm sounds, I only need to follow the simple three-step guide, explains Gitte Hermansen to mayor Anker Boye. 27 childcare institutions in the municipality of Odense protected from damage from leaks and seepage from the water and heating installations By Beth Werner, Journalist An P _ 9 Gitte Hermansen, the manager of Ejerslykke Nursery casts a glance at the two short-form guides hung on the wall above the control units that issue a text message alarm to her, and to the municipality in the face of leaks or seepage. The guide is simple and easy to grasp, so I do not expect an P _ 10 by Tarek Barky, Engineer District Heating, Ramboll FOCUS DISTRICT COOLING THE DISTRICT COOLING POTENTIAL District coolings greatest benefit is not its high energy To the utility providers benefits include: Entering a new efficiency it is the scale of economy and the higher utilizatio P _ 11 For the utility companies, the largest challenge is to locate the stage, careful consideration of the local natural resources can potential cooling customers and find profitable DC areas. With really increase both profitability and energy efficiency. district heating every building has a P _ 12 THE DISTRICT COOLING POTENTIAL HOW IS DC PRODUCED? Today, most commercial buildings make use of traditional compressor-based cooling to suit their cooling needs. DC is normally produced by means of one or more of the following technologies: For further information please contact: Ramboll A P _ 13 Photo (manipulative) of what it could look like, with cooling tanks at Frederiksberg Utility by Jakob Bjerregaard, Project Assistant District Energy, Ramboll SOCIETYS STAKE FOCUS DISTRICT COOLING IN DISTRICT COOLING District cooling can often present the best business case to isolated P _ 14 SOCIETYS STAKE IN DISTRICT COOLING This also leads to the next point of collaboration between boundary, and the interface unit is the responsibility of the stakeholders, it is often seen to be difficult for different end-user just as an individual gas boiler would be. business and devel P _ 15 Therefore separation of production and distribution is needed, expansion of district heating and cooling, by committing as mentioned earlier. The distribution could be owned by the member states to assess the potential and take initiative stakeholders, to avoid the powers of the monopoly P _ 16 FOCUS DISTRICT COOLING HYDRAULIC SAFETY ANALYSES LESSONS LEARNED By Hilmar Ómarsson, Hydraulic specialist, COWI A/S and Niels Henrik Harbo, Technical director and senior cooling specialist, COWI A/S District cooling systems are becoming a more common part end of the hose. This will le P _ 17 The TES is located at the chiller plant between the primary trip, the net flow to the TES tank is positive, the tank is being and secondary circuits. The volume of the tank is 6,500 m3 filled with water, but the water level changes only very little. with a height of 18 metres. The holdin P _ 18 HYDRAULIC SAFETY ANALYSES LESSONS LEARNED CONCLUDING REMARKS The lesson learned in this case is that even though normal design approach was followed, transient hydraulic problems were identified, and the design had to be altered. Luckily, the project was still in the early design phase whe P _ 19 By Akram J. Mourad, Senior Vice President, District Energy Middle East & Africa, LOGSTOR DISTRICT COOLING IN FOCUS DISTRICT COOLING THE MIDDLE EAST District cooling in the Middle East is driven by growing in the Gulf Cooperation Council (GCC) region and help reduce governments environm P _ 20 DISTRICT COOLING IN THE MIDDLE EAST A good example of innovation driven by governments For further information please contact: eagerness to save scarce resources and the environment, innovative regional utility companies - such as EMPOWER LOGSTOR which is LOGSTORs joint venture regional P _ 21 By Søren Clemen Ellern Gøttsche, HOFOR Communications FOCUS DISTRICT COOLING DISTRICT COOLING THE HOFOR WAY Since 2008, HOFOR (Copenhagen Energy), which is the largest tanks, electrical panels, and installations in systems which are Danish Utility Company, has been working hard on depl P _ 22 DISTRICT COOLING THE HOFOR WAY The cooling center located at Kongens Nytorv has a fullyfledged capacity of approx. 18 MW and supplies properties in the city center. At present, HOFOR has entered into agreements on 29 MW, while the objective is to enter into written agreements on the total o P _ 23 Who is HOFOR? HOFOR is a merger between Copenhagen Energy and seven local water supply companies and is also responsible for waste water supply in most of the municipalities. HOFOR produces cooling centrally in three different ways: In winter months, cooling is produced using seawater, whi P _ 24 FOCUS DISTRICT COOLING By Jesper With, journalist DANFOSS SUBSTATIONS IN HELSINKI DC NETWORK When Danfoss delivers its district cooling (DC) substations tearing down surrounding structures. Danfoss has many to clients in the Helsinki DC network, it is being done on the years of exper P _ 25 CHP SURPLUS HEAT USED FOR COOLING Helsinki has a highly developed DH system connected to combined heat and power (CHP) plants. Therefore it was obvious for Helsinki Energy to start developing DC as well. The utility company got its first customer in 1998 and today it has laid down 60 kilomet P _ 26 DBDH WELCOMES NEW MEMBERS EKF AND DANTAET EKF These days it takes more than just a good product to succeed THE FULL EXPORT CYCLE in export markets. It is just as important to be able to secure The nature of EKFs activities is to support exporters, financing for your business transactions P _ 27 DANTAET DanTaet a/s develops, manufactures and markets leakage protection systems for all types of pipe installations. Through innovation, patents, economic independence and strong partners, DanTaet has maintained a highly specialized niche on domestic and foreign markets since 1986. DanTaet P _ 28 ISOPLUS DENMARK MEMBER COMPANY PROFILE By Jesper With, journalist The international political focus on CO2 reductions has grown are heating companies in the Nordic Countries and Estonia a lot within the last few years. States and cities have put plus Great Britain, Verner Rosendal says. P _ 29 is constantly being enlarged in central Copenhagen, Verner Therefore isoplus has developed the concept Total Quality. Rosendal says. He adds that there are constantly renovation This means that the company does everything possible to projects going on in other large Danish cities as well P _ 30 LIST OF MEMBERS Aalborg Engineering Supplier of boilers and boiler systems ABB Monitoring and control for district heating networks Aerovit Boiler cleaning AffaldVarme Aarhus Amager Ressource Center Waste and energy company ARCON Solar A/S Large-scale thermal solar systems BROEN Ballom P _ 31 Kamstrup Supplier of energy meters & automatic meter reading systems for heat, cooling, water and gas Logstor Preinsulated transmission and distribution pipes Niras Consulting engineers and planners Rambøll Consulting engineers and planners Schneider Electric Quality software for profita District cooling and district heating - the pipe technology is the same so is your supplier Solid credentials LOGSTOR is the worlds leading supplier of the supremely effective pre-insulated pipe systems at the heart of district heating installations. Almost half a century of district heating exper