district heating Articles

  • Harbin daoli - District Heating, China case study

    In cooperation with ABB A/S Skovlunde and APV A/S Kolding DESMI A/S replaced large parts of the heating network in Harbin in China. Daoli is one of the seven districts of Harbin, the largest city in North East China with approx. 11 million inhabitants. It is known for its bitterly cold winters and is often called the “Ice City” – so therefore the city welcomed this ...


    By DESMI A/S

  • Thermodynamic analysis of a geothermal district heating system

    Thermoeconomic analysis is considered a useful tool for investigators in engineering and other disciplines due to its methodology based on the quantities exergy, cost, energy and mass. This study deals with an investigation of capital costs and thermodynamic losses for devices in the Balcova Geothermal District Heating Systems (BGDHS). Thermodynamic loss rate-to-capital cost ratios are used for ...


    By Inderscience Publishers

  • The Aberdeen Heat and Power district energy schemes - Case Study

    District energy schemes seemed to be the right decision for the Aberdeen City Council (ACC). They had conducted a study of its housing stock and established that the multi-storey buildings (of which they have 59 in Aberdeen) were too expensive to heat. These buildings also had lower energy ratings, thus people living in them were subject to high energy bills. In 2002, as one of the results of the ...


    By Clarke Energy

  • First industrial application of an open absorption cycle for heat transformation in a district-heating network

    The first plant for high temperature utilisation of higher heating value was realised under industrial conditions in a combined heat and power plant. The technology results in an increased heat recovery temperature and a stronger dehumidification of the flue gas. Beyond that, the use of large solution flow within an adiabatic absorber enables to combine gas scrubbing and dehumidifying. Economic ...


    By Inderscience Publishers

  • Case study - ElectraTherm commissions 10 green machines on district heating system in Europe

    ElectraTherm commissioned 10 Green Machine 4400s in Levice, Slovakia in June 2014. ElectraTherm’s Czech distributor, GB Consulting, facilitated the deployment of Organic Rankine Cycle (ORC) systems on a centralized district heating system in Slovakia as a means of increasing on-site efficiency and generating clean energy. ElectraTherm’s Green Machine generates fuel-free, ...


    By ElectraTherm

  • Investigation of some renewable energy and exergy parameters for two Geothermal District Heating Systems

    In this study, three new exergy parameters, namely total exergy destruction ratio, component exergy destruction ratio and dimensionless exergy destruction are introduced in addition to energetic renewability ratio, exergetic renewability ratio, energetic reinjection ratio and exergetic reinjection ratio, and compared for Edremit and Bigadic Geothermal District Heating Systems (GDHSs) based on ...


    By Inderscience Publishers

  • Energy and exergy analysis of a 16–MW combined cycle district heating system with performance improvements

    Results of an energy and exergy analyses performed on a 16–MW University district heating plant located in the Northeast USA are presented in this paper. Unlike past studies, this paper uses actual data to assess CHP plant performance for all the 8760 h in a year (2011). A system of such complexity, considering the large volume of data available and large variations in system load, has not been ...


    By Inderscience Publishers

  • District heating (dh) pipeline owned by dutch utility poses unique inspection challenge

    Would you take on a new pipeline inspection challenge, even if you knew it would land you in hot water? Recently Pure Technologies (Pure) was able to chalk up success by adding one more type of pipeline to its inspection resumé. In this instance it was a district heating pipeline owned and operated by Eneco, one ...


    By Pure Technologies

  • District Heating – hot water serves up a successful recipe for Rotork - Case Study

    Overview The Metropolitan Copenhagen Heating Transmission Company (CTR) operates the largest district heating system in Denmark. Seven combined heat and power (CHP) and two waste incineration power plants, supported by 14 peak load power plants, supply heat to the CTR transmission system, consisting of over 100 kilometres of mostly underground pipelines with diameters up to 800 mm. Water is ...


    By Rotork

  • Los Angeles County Sanitation Districts: Siloxane Removal

    Los Angeles County Sanitation Districts have long been involved with recovering landfill and digester gas for energy to power turbines and internal combustion engines. Their experience led them to identify performance issues associated with these gases. One particular challenge is siloxanes. Cyclic organic silicon monomers (siloxanes) used in the manufacture of personal hygiene, health care and ...


    By Pioneer Air Systems

  • Q&A: The world’s eyes turn to Minnesota on district energy

    Frank Jossi reports in Midwest Energy News that for the second time in a little more than a decade St. Paul is hosting an international conference on district energy. Ken Smith is the president and CEO of District Energy St. Paul and past Chair of the International District Energy ...

  • Environment risk and cogeneration in China: the case of Zibo Huantai district

    With the economic development, the environment protection problems become more and more serious and the environment protection deterioration risk has been exacerbated in Zibo City, China. Many small heating boilers are used to supply heat in Huantai district of Zibo, which have low efficiency of energy consumption and cause serious pollution. With the analysis of the thermal power demand and ...


    By Inderscience Publishers

  • Investigation of a hybrid solar and geothermal driven absorption cooling system for district applications

    In this paper, a new hybrid geothermal and solar driven absorption cooling system (ACS) is proposed for low–temperature district energy applications. Two approaches are proposed in this study, namely: a) a new model for determining the specific entropy values of LiBr–water solution and (b) two new energetic and exergetic parameters, namely geothermal contribution index and solar contribution ...


    By Inderscience Publishers

  • Is waste heat the silver bullet?

    The energy industry tends to get stuck on certain words. Silver bullet is one of them. Insiders and policymakers often like to say there is no silver bullet to fix US energy woes. We need a portfolio of solutions – renewables, efficiency, smart grid, transmission expansion, coal sequestration, etc. That may be true, but Tom Casten begs to differ. Casten is a bit of a rock star in the field of ...

  • Much light, little heat efficiency

    Energy efficiency in the US is much light and little heat – literally.  Government policy pays a great deal of attention to saving electricity, but focuses little on the thermal energy we waste.  “Policy is electricity-centric in the US. Unless you are making kilowatts, the most efficient investments are off the radar,” said Rob Thornton, president of the ...

  • Combined Heat and Power – Questions and Answers

     1. What are the benefits of CHP for business?   combined heat and power (CHP) is a well-proven technology, recognised worldwide as a cleaner alternative to traditional centralised generation. Its long-term future in the global energy markets is secured by CHP's ability to provide a multitude of financial, ...


    By ENER-G

  • Utilisation of deep geothermal energy for heating purposes

    The Hot-Dry-Rock-(HDR) technology allows a location-independent utilisation of geothermal heat, because aquifers in deep formations, i.e. layers filled with water, are not necessary. The flow paths for the circulating water in a depth of 4 km are created by hydraulic fracturing of existing gaps. Due to the fact that this new technology is quite cost-intensive, high annual load duration of the ...


    By Inderscience Publishers

  • Geothermal Heat Pump (GHP) - Case Studies

    Case Study: “GHP schools used approximately 26% less source energy per square foot of floor area,” according to an evaluation of Lincoln, Nebraska schools by the Department of Energy. The report concludes that the schools using GHP technology “outperform others in the school district.” Case Study: Annual electrical consumption in Fort Polk ...

  • Free eguide explains latest changes to heat network UK regulations

    Community heating specialist Switch2 Energy Limited has published a guide to the latest legislative changes affecting the UK's communal energy and district heating schemes and what they mean for heat suppliers. Important updates to the ...


    By Switch2 Energy Limited

  • How to take the headache and financial risk out of managing community heating

    The environmental benefits of community heating and the potential to deliver affordable energy to social housing residents are widely acknowledged, but many housing providers are put off by the complexity of managing such schemes and the financial risk involved. Social housing metering and billing specialist ENER-G Switch2 has ...


    By ENER-G

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