district heating Articles

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Thermodynamic analysis of a geothermal district heating system

by Inderscience Publishers  (Jun. 28, 2005)

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). ...

Harbin daoli - District Heating, China case study

by DESMI A/S  (Mar. 19, 2014)

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” ...

Technical issues in low to medium-temperature district heating

by Inderscience Publishers  (Feb. 12, 2004)

Low-temperature district heating permits the use of energy resources formerly discarded or could not be claimed. However, its investment may be capital intensive because of equipment oversizing and temperature peaking required by conventional equipment. In classical design philosophy, flow is minimised in order to compensate some of the oversizing ...

Recycling industrial waste heat for sustainable district heating: a multi-actor perspective

by Inderscience Publishers  (Mar. 10, 2009)

Addressing the climate change and energy scarcity problems are two of the most complex sustainability challenges facing not only scientists, but also policy makers. Attempts at tackling these issues should be approached from two fronts: by increasing the energy efficiency (demand side) and by promoting the usage of renewables and non-Greenhouse ...

Thermodynamic assessment of an integrated system for cogeneration and district heating and cooling

by Inderscience Publishers  (Nov. 15, 2004)

A thermodynamic assessment is reported of a proposed system, for which advanced engineering designs have been developed for integrating cogeneration with district heating and cooling. The system was developed by Edmonton Power for the city of Edmonton, Alberta, Canada. Energy and exergy analyses are used to attain a more complete thermodynamic ...

The Aberdeen Heat and Power district energy schemes - Case Study

by Clarke Energy  (Aug. 4, 2014)

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 ...

Carbon Reduction Versus Affordable Warmth - the district heating challenge

by ENER-G  (Jan. 2, 2013)

Government and European Legislation, Building Regulations and planning requirements are driving the residential new build sector to consider and adopt technologies such as bio-diesel boilers, biomass boilers and heat pumps to support the delivery of low carbon developments. However, some of these more ‘exotic’ solutions have high fuel ...

Xylem pumps chosen for the biggest shopping mall in the Nordic region - Case Study

by LOWARA S.r.l.- a Xylem brand  (Jul. 12, 2016)

When the time came to select the pumps for the Mall of Scandinavia, high operational reliability and superior efficiency were two of the key parameters. Around 200 Xylem in-line pumps are now helping to handle the supply of heating, cooling and domestic hot water to all areas of the giant installation. Located in Stockholm, Solna, the Mall of ...

Class a biosolids production at eastern municipal water district using heat pasteurization

Since 1998, the Eastern Municipal Water District (District) has developed and successfully operated a heat pasteurization facility to treat extended aeration waste activated sludge (WAS) from the Perris Valley Regional Water Reclamation Facility (PVRWRF). The treatment train uses hot water to sludge spiral heat exchangers and a patented ...

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

by Inderscience Publishers  (Apr. 5, 2005)

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 ...

District Cooling Project – NUON Energy

by DESMI A/S  (Dec. 18, 2013)

Nuon, part of Vattenfall, is a leading energy company that generates electricity and produces gas, heating and cooling, which is supplies to approximately 2.2 million households, companies and organizations in the Netherlands. In 2009 DESMI supplied energy efficient pumps to Nuon for a district cooling project in the south area of Amsterdam. ...

District Cooling Project – NUON Energy

by DESMI A/S  (Dec. 20, 2013)

District Cooling Project – NUON Energy District cooling Zuidoost Lob Amsterdam Nuon, part of Vattenfall, is a leading energy company that generates electricity and produces gas, heating and cooling, which is supplies to approximately 2.2 million households, companies and organizations in the Netherlands. In 2009 DESMI supplied energy ...

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

by Rotork  (Oct. 30, 2014)

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 ...

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

by Inderscience Publishers  (Dec. 3, 2010)

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 ...

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

by Inderscience Publishers  (Oct. 28, 2013)

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 ...

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

by ElectraTherm  (Nov. 21, 2014)

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. ...

Accumulated CFC-11 in polyurethane foam insulation: an estimate of the total amount in district heating installations in Sweden

by Inderscience Publishers  (Sep. 16, 2009)

In rigid polyurethane foam used for thermal insulation, CFC-11 has been the main blowing agent for many years, but is now subject to phase-out regulations. During ageing of this foam, air diffuses into it and blowing agents leak into the atmosphere, resulting in a decreased insulating capacity. Determinations of the cell gas composition and the ...

Los Angeles County Sanitation Districts: Siloxane Removal

by Pioneer Air Systems  (Mar. 12, 2014)

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 ...

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

by International District Energy Association  (Jun. 17, 2016)

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 ...

Heavy metals in wet scrubber residue from a medium–sized (32 MW) municipal district heating plant incinerating wood and peat in a fluidised bed boiler

by Inderscience Publishers  (Oct. 17, 2012)

Due to the low total concentrations of heavy metals and extractable compounds, it is recommended that the wet scrubber residue be used as a construction agent instead of being disposed of in landfills. According to five–stage sequential extraction, the highest concentrations of most of the heavy metals occurred in the residual fraction (i.e., HF + ...

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