Solar water heating systems applied to highrise buildings-lessons from experiences in China

Junpeng Huang, Jianhua Fan, Simon Furbo, Liqun Li

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

High-rise buildings have a significant impact on the surrounding environment.Building-integrated solar water heating (SWH) systems are effective ways to use renewable energy inbuildings. Impediments, such as security concerns, aesthetics and functionality, make it difficult toapply SWH systems in high-rise buildings. At present, only China uses SWH systems on a large scalein such buildings. What are China’s experiences and lessons learned in applying SWH systems inhigh-rises? Are these experiences scalable to other countries? This study used a combination of fieldinvestigation, literature review and case study to summarize 36 systems that had been in operationfor 1–14 years. System types, collector types, installation methods, types of auxiliary heat sources,economic performance and various basic principles were summarized. The economic performance ofSWH systems in high-rise buildings was analyzed and verified by a case study in Shanghai. Theresults show that the installation of SWH systems in high-rise buildings is feasible and reliable.Individual household systems (61%) were more popular than centralized systems (25%) and hybridsystems account (14%). The average area of solar collectors per household was 2.17 m2/household,the average design solar fraction was 52%. Flat plate solar collectors (53%) was the most commonlyused collector, while electric heating elements (89%) were the most common auxiliary heat sources forSWH systems, followed by gas water heaters and air source heat pumps. The cost of SWH systemsper m2 of a building area was between 22 CNY/m2to 75 CNY/m2. China’s unique practical experiencegives a reference for other countries in their efforts to make high-rise buildings more sustainable.
Original languageEnglish
Article number3078
JournalEnergies
Volume12
Issue number16
Number of pages26
ISSN1996-1073
DOIs
Publication statusPublished - 2019

Keywords

  • Solar water heating system
  • High-rise building
  • Building-integrated solar thermal
  • Solar fraction
  • Levelized cost of heat

Cite this

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title = "Solar water heating systems applied to highrise buildings-lessons from experiences in China",
abstract = "High-rise buildings have a significant impact on the surrounding environment.Building-integrated solar water heating (SWH) systems are effective ways to use renewable energy inbuildings. Impediments, such as security concerns, aesthetics and functionality, make it difficult toapply SWH systems in high-rise buildings. At present, only China uses SWH systems on a large scalein such buildings. What are China’s experiences and lessons learned in applying SWH systems inhigh-rises? Are these experiences scalable to other countries? This study used a combination of fieldinvestigation, literature review and case study to summarize 36 systems that had been in operationfor 1–14 years. System types, collector types, installation methods, types of auxiliary heat sources,economic performance and various basic principles were summarized. The economic performance ofSWH systems in high-rise buildings was analyzed and verified by a case study in Shanghai. Theresults show that the installation of SWH systems in high-rise buildings is feasible and reliable.Individual household systems (61{\%}) were more popular than centralized systems (25{\%}) and hybridsystems account (14{\%}). The average area of solar collectors per household was 2.17 m2/household,the average design solar fraction was 52{\%}. Flat plate solar collectors (53{\%}) was the most commonlyused collector, while electric heating elements (89{\%}) were the most common auxiliary heat sources forSWH systems, followed by gas water heaters and air source heat pumps. The cost of SWH systemsper m2 of a building area was between 22 CNY/m2to 75 CNY/m2. China’s unique practical experiencegives a reference for other countries in their efforts to make high-rise buildings more sustainable.",
keywords = "Solar water heating system, High-rise building, Building-integrated solar thermal, Solar fraction, Levelized cost of heat",
author = "Junpeng Huang and Jianhua Fan and Simon Furbo and Liqun Li",
year = "2019",
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language = "English",
volume = "12",
journal = "Energies",
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Solar water heating systems applied to highrise buildings-lessons from experiences in China. / Huang, Junpeng; Fan, Jianhua; Furbo, Simon; Li, Liqun.

In: Energies, Vol. 12, No. 16, 3078, 2019.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Solar water heating systems applied to highrise buildings-lessons from experiences in China

AU - Huang, Junpeng

AU - Fan, Jianhua

AU - Furbo, Simon

AU - Li, Liqun

PY - 2019

Y1 - 2019

N2 - High-rise buildings have a significant impact on the surrounding environment.Building-integrated solar water heating (SWH) systems are effective ways to use renewable energy inbuildings. Impediments, such as security concerns, aesthetics and functionality, make it difficult toapply SWH systems in high-rise buildings. At present, only China uses SWH systems on a large scalein such buildings. What are China’s experiences and lessons learned in applying SWH systems inhigh-rises? Are these experiences scalable to other countries? This study used a combination of fieldinvestigation, literature review and case study to summarize 36 systems that had been in operationfor 1–14 years. System types, collector types, installation methods, types of auxiliary heat sources,economic performance and various basic principles were summarized. The economic performance ofSWH systems in high-rise buildings was analyzed and verified by a case study in Shanghai. Theresults show that the installation of SWH systems in high-rise buildings is feasible and reliable.Individual household systems (61%) were more popular than centralized systems (25%) and hybridsystems account (14%). The average area of solar collectors per household was 2.17 m2/household,the average design solar fraction was 52%. Flat plate solar collectors (53%) was the most commonlyused collector, while electric heating elements (89%) were the most common auxiliary heat sources forSWH systems, followed by gas water heaters and air source heat pumps. The cost of SWH systemsper m2 of a building area was between 22 CNY/m2to 75 CNY/m2. China’s unique practical experiencegives a reference for other countries in their efforts to make high-rise buildings more sustainable.

AB - High-rise buildings have a significant impact on the surrounding environment.Building-integrated solar water heating (SWH) systems are effective ways to use renewable energy inbuildings. Impediments, such as security concerns, aesthetics and functionality, make it difficult toapply SWH systems in high-rise buildings. At present, only China uses SWH systems on a large scalein such buildings. What are China’s experiences and lessons learned in applying SWH systems inhigh-rises? Are these experiences scalable to other countries? This study used a combination of fieldinvestigation, literature review and case study to summarize 36 systems that had been in operationfor 1–14 years. System types, collector types, installation methods, types of auxiliary heat sources,economic performance and various basic principles were summarized. The economic performance ofSWH systems in high-rise buildings was analyzed and verified by a case study in Shanghai. Theresults show that the installation of SWH systems in high-rise buildings is feasible and reliable.Individual household systems (61%) were more popular than centralized systems (25%) and hybridsystems account (14%). The average area of solar collectors per household was 2.17 m2/household,the average design solar fraction was 52%. Flat plate solar collectors (53%) was the most commonlyused collector, while electric heating elements (89%) were the most common auxiliary heat sources forSWH systems, followed by gas water heaters and air source heat pumps. The cost of SWH systemsper m2 of a building area was between 22 CNY/m2to 75 CNY/m2. China’s unique practical experiencegives a reference for other countries in their efforts to make high-rise buildings more sustainable.

KW - Solar water heating system

KW - High-rise building

KW - Building-integrated solar thermal

KW - Solar fraction

KW - Levelized cost of heat

U2 - 10.3390/en12163078

DO - 10.3390/en12163078

M3 - Journal article

VL - 12

JO - Energies

JF - Energies

SN - 1996-1073

IS - 16

M1 - 3078

ER -