district heating system Articles

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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 ...

  • 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

  • Talking Point: Geothermal systems and the value of maintenance programmes

    Mike Deed, Managing Director of Geoquip Water Solutions, is the author of Talking Point in the October issue of Groundwater Engineering. He focuses on the huge benefits of installing a geothermal system and the importance ...


    By Geoquip Water Solutions

  • Rational use and management of geothermal energy resources

    This article identifies and explains several attributes of geothermal energy. High exergetic efficiency due to a close temperature tie between geothermal energy and district heating and cooling was noted. Parameters governing the rational use and management of geothermal energy systems with special emphasis on integrated-cascaded district energy systems were formulated and explained with two case ...


    By Inderscience Publishers

  • CIBSE Event at Kings Cross CHP plant a great success - Case Study

    Clarke Energy showcases GE’s Jenbacher combined heat and power (CHP) engines at the 67 acre, Kings Cross development at Hoare Lea. Hoare Lea is a firm of consulting engineers, specialising in mechanical, electrical and environmental engineering. The event took place on the evening of ...


    By Clarke Energy

  • Allready-Box brings security to production of bioenergy

    Animal feed manufacturer Futtertrocknung Mindelheim eG of southern Germany has been operating a co-generation power station since 2008. During the summer months, this power station uses ecological methods to generate the heat and electricity the company needs to dry soilage. Utilizing a year-round, low-temperature heating network, it supplies local industrial firms and public institutions with ...


    By ALLWEILER GmbH

  • Efficiency Gain at FUSD

    Summary Power Knot treated a four ton (14 kW) roof-top packaged air conditioning unit with its Synthetic Refrigerant Additive (SRA) at the Mission Valley Elementary School in Fremont, California. After treatment, the efficiency of the unit increased by over 16%, resulting in savings in electricity cost and increasing the air conditioning cooling capacity for 32 students in their classroom. ...


    By Power Knot LLC

  • Fuel for Schools: A Biomass Success Story

    On our blog, you have learned about different types of biofuel, the process for creating biofuel, and the global benefits of using biomass technology. Now it’s time to see all of this information put into practice. Different areas of the country have supported a program called Fuel for Schools, which encourages the use of renewable, local resources to provide heat to schools. ...


    By Uzelac Industries, Inc

  • Case Study - Kirkdale Manor

    “In today’s climate of escalating oil prices and concern for the environment, Kirkdale Manor stands as a testament to forward thinking.” John Greenway, MP for Ryedale, speaking at the opening of Kirkdale Manor Biomass Energy Centre. Kirkdale Manor is a spectacular residential development on the edge of the village of Nawton, 3 miles east of ...


    By LandEnergy Limited

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you