NO. 4 /2019 INTERNATIONAL MAGAZINE ON DISTRICT HEATING AND COOLING FOCUS COMPONENTS NEW THERMAL HEAT STORAGE IN GREATER COPENHAGEN SECURE THE ASSET IN YOUR DISTRICT HEATING NETWORK Sign up to receive Hot Cool DBDH Promoting District Energy for a Sustainable City transformation www.dbdh.dk CONTENTS 4 THE COLUMN CRUNCH TIME By Birger Lauersen, Manager International Affairs, Danish District Heating Association and Vice President, Euroheat & Power 6 FOCUS FROM COMPONENT TO SERVICE AN IOT JOURNEY THAT HAS ONLY JUST BEGUN By Martin Overbjerg, Business Development Manager, District Ener Let the future in The future is knocking, in the shape of Brunatas new network-based technology, which not only provides a stream of precise consumption and property data, but also gives opportunities for energy efficient, environmentally friendly and resident oriented solutions. All meters connect P4 The Column By Birger Lauersen, Manager International Affairs, Danish District Heating Association and Vice President, Euroheat & Power Crunch time Urbandictionary.com defines crunch time as: The interval of time immediately before a project is due, when it becomes apparent that the schedule h Virtus. Shaped for the future Danfoss new ready pressure and flow controllers with intelligent iSET function Optimal hydronic balance and perfect temperature control is the key to maximizing efficiency of heating and cooling networks. With that it also means that you are saving energy, money and im P6 FOCUS COMPONENTS By Martin Overbjerg, Business Development Manager, District Energy, Frese A/S FROM COMPONENT TO SERVICE an IoT journey that has only just begun The future is service based. A point that major software developers have been aware of for some time, and a principle which several P7 It became clear that the controller only needed to transmit very small data packages regarding operational conditions and receive even smaller data packages in order to control the flow, and only at certain intervals. This is in fact the case with many IoT solutions. This meant that narrowband t P8 Another key point is data sharing, which will only accelerate as district energy and other utility companies start reaching for further optimization and synergies. PERSPECTIVES With the international agenda focused on climate change and the reduction of CO 2 emissions, the Danish district energy P9 SECURE THE ASSET IN YOUR DISTRICT HEATING NETWORK FOCUS COMPONENTS By Peter Jorsal, Product & Academy Manager, LOGSTOR A/S Asset management has become a popular concept within district heating in recent years. It deals with securing the value of your district heating network and production pl P10 The basic function of the surveillance system is to report when moisture has entered the insulation and show how the fault has developed over time. Surveillance systems can be designed after very different principles: Passive system. Manual measurements of the system by a measuring technician P11 The only physical thing you can see in the pre-insulated, buried system are the pre-insulated valves in chambers. The energy company should establish a routine for planned chamber inspections 1-2 times a year, where the valves are operated. This ensures a long service life of the pre-insulated P12 FOCUS COMPONENTS By Thomas Dalsgaard, Head of Sales, SILHORKO-EUROWATER A/S WHY IMPROVE THE WATER QUALITY IN DISTRICT HEATING SYSTEMS? Demineralization and deaeration of district heating makeup water have for many years been a privilege for only a few major district heating companies. Lately P13 Corrosion is an electrochemical reaction between oxygen, water and metal. The reaction can only happen if all three components are present. Therefore, make-up water should ideally be demineralized, deaerated and pH adjusted. Salts and oxygen serve as catalysts for corrosion. Salts increase the P14 OVERVIEW: ADVANTAGES OF USING DEMINERALIZED AND DEAERATED MAKE-UP WATER IN DISTRICT HEATING SYSTEMS The risk of corrosion is reduced because the corrosion process requires salts and oxygen to react. By reducing the salt content in the water, the risk of microbiological growth in the district P15 GRAPH 2: CORRELATION BETWEEN PH, CONDUCTIVITY AND SALTS SUMMARY Optimum water treatment will help prolong the lifetime of pipes and critical components in the DH system. By desalination, deaeration and pH adjustment, the lifetime increases. Consider a business case where the lifetime of the pi P16 FOCUS COMPONENTS By Finn Bruus, team leader, VEKS and Per Alex Sørensen PlanEnergi NEW THERMAL HEAT STORAGE IN GREATER COPENHAGEN This article gives an introduction to the FLEX_TES 70,000 m3 pit heat thermal storage (PTES) project, where the PTES will be demonstrated in a new function as accu P17 TECHNOLOGY: STATE-OF-THE-ART Heat storages can be constructed in different ways tanks, pit, borehole and aquifers as shown in fig 1. Period 2016 2014-2016 Storage efficiency 91 % 90 % No. of storage cycles 1.9 6.0 T-max. / T-min. 87 / 12OC 89 / 12OC Heat capacity with T-max./T-min P18 The two main benefits of the PTES are: that it can improve the flexibility of the DH system thus enabling 1) a better optimization of the production units in the electricity market, and 2) an increase of the heat production on cheaper units (CHP plants, geothermal energy and heat pumps), decr P19 All stakeholders who get value of PTES also contribute proportionally to the investment. However, it was a challenge to identify and agree to a common projection of each stake holders potential benefit. Also, it was a challenge to develop a robust and simple model for sharing the investment cos P20 FOCUS BIOMASS BOILER TO NEW PLANT IN FRANCE COMPONENTS By Jens Dall, Managing Director, Dall Energy In Rouen, France, Dalkia needed a biomass boiler, and they chose Dall Energy. The technology was chosen for two main reasons; Firstly: the patented gasification system allows for a cleaner co P21 The project in Rouen will be the largest of its kind to date. The procurement and construction are going on according to the project time schedule, and the plant will be put into operation in 2020. CHP PLANT IN DANISH TOWNS SINDAL AND SORØ Our latest biomass plant was the CHP plant in Sindal, w P22 FROM SEASONAL TO SMART ENERGY STORAGE FOCUS COMPONENTS By Alfred Heller, Managing Consultant, NIRAS The need for stabilizing the electrical smart grid increases the demand for very large thermal storages. Pit water storage are currently the most promising technologies according to IEA report P23 In Figure 2, we see three plots, to the left, the measured curves at different depth of the pit during the first two years of utilization. Focusing on the second year, the plot represents a typical seasonal solar production. In the middle plot, the shape of the solar application is changed to t P24 By Christer Frennfelt, Business Development Manager, Consultant & Utility, SWEP EXPANSION OF INNOVATIVE COPENHAGEN DISTRICT HEATING PROJECT The cooperation between two local energy providers demonstrates the ingenuity by which heat production can be made more efficient and climate-friendly whi P25 PROFITABLE AND CLIMATE-FRIENDLY Calculations performed by consultants Ramboll demonstrated that the exchanger solution was the most profitable, effective and climate-friendly approach to securing a reliable supply of heat in the area. At the same time, it provides a significant increase in capa P26 By Greg Gebrail, Sector Specialist District Energy, European Bank for Reconstruction and Development; Andrew T. Christensen, Chief Specialist, Energy, COWI A/S; and Anton Dan-Chin-Iu, Principal Banker, European Bank for Reconstruction and Development (EBRD) BRINGING CLEANER HEAT TO THE WORLD P27 Today, about half of the 1.4 million people living in Ulaanbaatar heat their homes with DH; what happens in the other half of the city is part of the problem the project is seeking to address. Over the last decade, the City has experienced unprecedented population growth due to high levels of m P28 DAILY AIR QUALITY IN ULAANBAATAR(JULY 2018-JULY 2019) In the winter months, the pollutant PM2.5, consisting of fine particles, spikes to levels classified as very unhealthy and hazardous on the U.S. Enviromental Protection Agencys Air Quality Index. Below are maximum, minimum and average daily P29 The Mongolian climate poses some obvious challenges to the energy system, but it also offers promising renewable based opportunities. With over 250 days of sunshine a year and ample wind supply, solar thermal and heat pumps (based on a greener electricity supply) deserve further investigation. P30 NEXT STEPS EBRD has already approved the loan for the UBDHC project; the Bank and the Government are negotiating the terms of the loan and grant agreement. The investment programme will be funded by an EBRD loan of US$ 10 million, co-financed by a capital grant of US$ 5 million from the EU Asia P31 MEMBER COMPANY PROFILE ALBERTSLUND DISTRICT HEATING COMPANY LOW TEMPERATURE DISTRICT HEATING FOR A GREENER ENERGY SYSTEM was produced from coal for a short period and natural gas boilers were installed. By the end of the 1980s, Albertslund, together with 10 other municipalities, created the defining network efficiency External hosting Gives access to XTool XPM IOS Android Firewall Precautionary measures Communication Mails SMS Documentation Support User access LOGSTOR Detect Dashboard SRO (SCADA) X4/X6 X1L Energy company District Heating District Cooling Extend the lifetime