N0. 3 2013 INTERNATIONAL MAGAZINE ON DISTRICT HEATING AND COOLING DHC SMART ENERGY NEW SOLUTIONS DBDH - direct access to district heating technology www.dbdh.dk CONTENTS 4 5 9 11 14 18 20 26 27 28 30 FOCUS DHC - SMART ENERGY - NEW SOLUTIONS THE COLUMN Dronninglund - Major breakthrough for solar heating Great potential and interest in Low Temperature District Heating with a supply temperature of 35-45C HOTCOOL is published four times a year by: The Geot 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 _ THE COLUMN 4 DHC SMART ENERGY NEW SOLUTIONS By Lars Gullev, Managing Director, VEKS, and Chairman of the board of DBDH Over the last years, the power sector has been very apt to cover 50 % of the annual heat demand by solar heating at promoting the expression Smart Grids. Many people a P _ 5 37,275 m2 high performance ARCON HT-HEATstore solar collectors are now waiting to be installed in the worlds biggest solar heating plant for DH DRONNINGLUND FOCUS DHC SMART ENERGY NEW SOLUTIONS - MAJOR BREAKTHROUGH FOR SOLAR HEATING By Søren Elisiussen, General Manager of ARCON Solar Hi P _ 6 DRONNINGLUND - MAJOR BREAKTHROUGH FOR SOLAR HEATING The plan was to install 35,000 m2 solar collectors on the area It is a classic dilemma that in July-August when the heat provided for the purpose. However, it turned out that the solar production is at its highest, the requirement for he P _ 7 A standard solar collector would have a considerable heat The steel foundation has distinct advantages, because it is loss at high temperatures. In the HT-HEATstore collector we cheaper than concrete, it is easier to install and last but not have lowered the heat loss by mounting a unique P _ 8 DRONNINGLUND - MAJOR BREAKTHROUGH FOR SOLAR HEATING ABOUT THE HIGH PERFORMANCE SOLAR COLLECTORS ARCON HT-HEATSTORE Exterior dimensions: (HxLxW) 2.27 x 5.96 x 0.14 m Net area (operative): 12.60 m2 Weight (exclusive of liquid) 250 kg Liquid content: 9.3 l Max. working pressure: 10 bar P _ 9 GREAT POTENTIAL AND INTEREST in Low Temperature District Heating with a supply temperature of 35-45C The prospects of Low Temperature District Heating (LTDH) are promising but LTDH at a very low supply temperature, for instance 40C, also presents challenges that require new thinking. Danish P _ 10 GREAT POTENTIAL AND INTEREST IN LOW TEMPERATURE DISTRICT HEATING WITH A SUPPLY TEMPERATURE OF 35-45C The team behind the EUDP project is thus developing a concept The project was also presented at the 13th International for an energy efficient domestic hot tap water solution with Symposi P _ 11 THE GEOTHERMAL POTENTIAL a Green Energy Source ready for export FOCUS DHC SMART ENERGY NEW SOLUTIONS By Managing Director Lars Andersen, Ross Engineering A/S Only the industry can drive geothermal energy to success. Lets professionalize, organize and finance geothermal projects in Denma P _ 12 THE GEOTHERMAL POTENTIAL A GREEN ENERGY SOURCE READY FOR EXPORT COMBINING GREEN ENERGY SOURCES With electricity production from geothermal energy at above Geothermal energy should be viewed and understood in 120oC degrees, and heating and cooling possibilities, the limits combination w P _ 13 However, management of the geological risk is directly As drilling is inherently expensive, drilling must go-on 24/7 comparable to any drilling operation regardless of the target during the drilling process, and only be stopped in case of source; hot water, oil or gas. major discrepanci P _ 14 FOCUS DHC SMART ENERGY NEW SOLUTIONS WHY DISTRICT HEATING AND DISTRICT COOLING GO HAND IN HAND By Tarek Kim El Barky market manager for District Cooling, Rambøll Energy and Anders Dyrelund, senior market manager, Rambøll Energy Frederiksberg Forsyning proposes the first cold water storag P _ 15 In all cities in the world, local governments may find that DH WHY SHOULD BUILDING OWNERS PREFER DH&C? and/or DC depending on the climate zone are vital parts of the There are also many good reasons for this, e.g. urban infrastructure, which should be integrated in the urban Better eco P _ 16 WHY DISTRICT HEATING AND DISTRICT COOLING GO HAND IN HAND absorption heat pumps, alone or in an optimal combination with compressor chillers. The larger temperatures - the more efficient production however, the lower temperature - the more heat is available. A compromise between steam and l P _ 17 As an example of the above, some of the largest DC systems GAS TO DC REDUCES POWER PEAK DEMAND in Europe utilizes both sides of the chiller. In Stockholm, the In modern cities in warm climates, some of the key problems city has a DC capacity of 250 MW and delivers 440 GWh of are blackou P _ 18 FOCUS DHC SMART ENERGY NEW SOLUTIONS By Anders Nielsen, Application Manager, Grundfos A/S and Charles W. Hansen, Plant Manager, Bjerringbro District Heating THERMAL STORAGE ELIMINATES ENERGY WASTE IN EXISTING DISTRICT HEATING NETWORK The Energy Central is the result of collaboration betw P _ 19 THE SYSTEM Cooling: The water used for cooling in the Grundfos factories is 6-12C and 18C when returned to the central. Heating pumps: The temperature of the water is raised to 46/67C and sent to the heating network. Annual cooling output of groundwater cooling 4 summer months Groundwater P _ 20 By Pernille M Overbye, Market Manager, Head of Department, District Energy, Ramboll TWO CASE STUDIES - PLANNING FOR DISTRICT COOLING The plan is to develop a major suburb at Alkimos north of Perth with around 15,000 homes over the next 20-30 years. The area is to house approximately 50,000 P _ 21 Based on the plans for the development, the peak load demand of an average dwelling was estimated to be 33 kW. The summer period where there is a cooling demand was estimated to be in the period from October to April. The winter period where there is a heating demand is estimated to be from P _ 22 TWO CASE STUDIES PLANNING FOR DISTRICT COOLING The main distribution network consists of two pipes a supply development is a first of this scale in Australia and therefore and a return pipe with heat. The local distribution network there is currently no experience to draw upon from sch P _ 23 In the context of Alkimos, which at this stage is a scheme COOLING DEMAND purely looking at connecting newly built, it must be noted that The MCI Business Park project is located in the capital of an expansion of the networks to supply existing buildings Riyadh, and will include headqua P _ 24 TWO CASE STUDIES PLANNING FOR DISTRICT COOLING DISTRICT COOLING OPTIONS for chiller compressors, heat rejection and energy storage In general there are two possibilities to fulfill the cooling have also been investigated against the following parameters: demand at MCI Business Park a P _ 25 approximately 5,000 m3. The calculated optimum size of the storage assumes that the assumptions made in the report are correct which means that when more data is available a new optimization has to be made. To be on the safe side, space for an additional 2-3000 m3 of storage should be alloca NEWSLATEST N ST TE LA S W NE ST TE LA S W NE P T NEWS LATEST _ ATES ST NEWSLATES TE LA S W NE 26 ST TE LA S W NE ST S LATEST NEWS LATE WSLATEST NEW NE ST TE LA S W NE ST TE LA S W TEST NEWS LATEST NE NEWS LATE T ES AT SL W NE ST TE LA S LATEST NEWS W NE WS LATEST NEWS LATEST NEW COOPERATIVE AGREEMEN NEWS LATEST NE SLATEST NEWS L W NE ST TE LA S W NE T ES AT SL W P _ ST NEWS LATEST NE TE LA S W NE T ES AT 27 SL W NE ST TE LA S W NE R BE WS LATEST NEW MEM LATEST NEWS S W NE T ES AT SL W NE ST TE LA S EST NEWSLATEST NEW NEW MEMBER OF DBDH PlanEnergi was established in 1983 and operates as an eff P _ 28 MEMBER COMPANY PROFILE SASECO 53,000 customers at AffaldVarme Aarhus, the main utility Its difficult to react on your high energy consumption if you company in Denmarks second biggest city, are having heating dont know where the problems are. This is where our eButler meters installed, P _ 29 How it works eButler is online software developed as a service application for eButler provides a combination of: visualisation of energy consumption. It is controlling wireless home automation devices and is using existing communication - Consumption visualisation tools, which can optim P _ 30 LIST OF MEMBERS Aalborg Engineering Phone +45 9631 3950 Fax +45 9631 3951 ae@aalborg-engineering.dk www.aalborg-engineering.com Dansk Energi Service Phone +45 4450 4450 Fax +45 4450 4311 abb@dk.abb.com www.abb.com DanTaet Boiler cleaning Phone +45 8692 4422 Fax +45 8692 2919 sales@aero P _ 31 isoplus Denmark Preinsulated piping systems for district heating and cooling 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 PlanEnergi C 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