Building level substation

The innovation of district heating system

Kari Sipilä, Arto Nuorkivi, Jorma Pietiläinen

Research output: Book/ReportReportProfessional

Abstract

The building level substation (BLS) is suggested here as an innovation to the District Heating (DH) sector development in China. Introduction of the BLS would provide obvious benefits in improved energy efficiency and living comfort, but it also faces institutional barriers to overcome. CHP concept will be described, and the economic, institutional and technical issues associated to BLS will be addressed. The BLS units are prefabricated compact products that are designed, manufactured and tested at the factory ready for transportation to the construction site, where the complete BLS unit will be mounted to the floor, connected to the existing indoor piping of heating and water, the remote communication facilities as well as to power supplies of the building. The BLS as an integrated plate heat exchange unit shall be prefabricated and assembled and successfully tested both hydraulically and electrically in the factory already to meet the high functional and low noise requirements, and if he so wishes, at the presence of the Borrower's representative. Its base and brazed structures should have sufficient intensity and stability. Domestic hot water (DHW) can also be integrated to DH. BLS makes it possible to complement the DH with DHW afterwards at low incremental costs: a small heat exchanger and a small circulation pump as well as connection to the existing DHW and city water piping are needed.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages35
ISBN (Electronic)978-951-38-8349-2
ISBN (Print)978-951-38-8348-5
Publication statusPublished - 2015
MoE publication typeNot Eligible

Publication series

NameVTT Technology
PublisherVTT
No.231
ISSN (Print)2242-1211
ISSN (Electronic)2242-122X

Fingerprint

District heating
Innovation
Water
Industrial plants
Heat exchangers
Energy efficiency
Pumps
Heating
Economics
Communication
Costs

Keywords

  • district heating
  • heating substation
  • building

Cite this

Sipilä, K., Nuorkivi, A., & Pietiläinen, J. (2015). Building level substation: The innovation of district heating system. Espoo: VTT Technical Research Centre of Finland. VTT Technology, No. 231
Sipilä, Kari ; Nuorkivi, Arto ; Pietiläinen, Jorma. / Building level substation : The innovation of district heating system. Espoo : VTT Technical Research Centre of Finland, 2015. 35 p. (VTT Technology; No. 231).
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Sipilä, K, Nuorkivi, A & Pietiläinen, J 2015, Building level substation: The innovation of district heating system. VTT Technology, no. 231, VTT Technical Research Centre of Finland, Espoo.

Building level substation : The innovation of district heating system. / Sipilä, Kari; Nuorkivi, Arto; Pietiläinen, Jorma.

Espoo : VTT Technical Research Centre of Finland, 2015. 35 p. (VTT Technology; No. 231).

Research output: Book/ReportReportProfessional

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T1 - Building level substation

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AU - Pietiläinen, Jorma

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N2 - The building level substation (BLS) is suggested here as an innovation to the District Heating (DH) sector development in China. Introduction of the BLS would provide obvious benefits in improved energy efficiency and living comfort, but it also faces institutional barriers to overcome. CHP concept will be described, and the economic, institutional and technical issues associated to BLS will be addressed. The BLS units are prefabricated compact products that are designed, manufactured and tested at the factory ready for transportation to the construction site, where the complete BLS unit will be mounted to the floor, connected to the existing indoor piping of heating and water, the remote communication facilities as well as to power supplies of the building. The BLS as an integrated plate heat exchange unit shall be prefabricated and assembled and successfully tested both hydraulically and electrically in the factory already to meet the high functional and low noise requirements, and if he so wishes, at the presence of the Borrower's representative. Its base and brazed structures should have sufficient intensity and stability. Domestic hot water (DHW) can also be integrated to DH. BLS makes it possible to complement the DH with DHW afterwards at low incremental costs: a small heat exchanger and a small circulation pump as well as connection to the existing DHW and city water piping are needed.

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Sipilä K, Nuorkivi A, Pietiläinen J. Building level substation: The innovation of district heating system. Espoo: VTT Technical Research Centre of Finland, 2015. 35 p. (VTT Technology; No. 231).