Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Economic and environmental analysis of energy renovation packages for European office buildings
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Fluid and Climate Technology. Dalarna University, Sweden.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration. Högskolan Dalarna, Sverige.
Show others and affiliations
2017 (English)In: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 148, 155-165 p.Article in journal (Refereed) Published
Abstract [en]

A large share of the buildings in Europe are old and in need of renovation, both in terms of functional repairs and energy efficiency. While many studies have addressed energy renovation of buildings, they rarely combine economic and environmental life cycle analyses, particularly for office buildings. The present paper investigates the economic feasibility and environmental impact of energy renovation packages for European office buildings. The renovation packages, including windows, envelope insulation, heating, cooling and ventilation systems and solar photovoltaics (PV), were evaluated in terms of life cycle cost (LCC) and life cycle assessment (LCA) through dynamic simulation for different European climates. Compared to a purely functional renovation, the studied renovation packages resulted in up to 77% lower energy costs, 19% lower total annualized costs, 79% lower climate change impact, 89% lower non-renewable energy use, 66% lower particulate matter formation and 76% lower freshwater eutrophication impact over a period of 30 years. The lowest total costs and environmental impact, in all of the studied climates, were seen for the buildings with the lowest heating demand. Solar PV panels covering part of the electricity demand could further reduce the environmental impact and, at least in southern Europe, even reduce the total costs.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 148, 155-165 p.
Keyword [en]
Energy renovation, LCA, LCC, Office buildings, TRNSYS
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-209512DOI: 10.1016/j.enbuild.2017.04.079Scopus ID: 2-s2.0-85019454202OAI: oai:DiVA.org:kth-209512DiVA: diva2:1112953
Note

QC 20170621

Available from: 2017-06-21 Created: 2017-06-21 Last updated: 2017-09-15Bibliographically approved
In thesis
1. Solar heat pump systems for heating applications: Analysis of system performance and possible solutions for improving system performance
Open this publication in new window or tab >>Solar heat pump systems for heating applications: Analysis of system performance and possible solutions for improving system performance
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Solar heat pump systems (SHPs) are systems that combine solar energy and heat pumps. SHPs have been investigated for several decades and have been proven to increase the share of renewable energy and reduce electric energy demand in residential heating applications. Many solar thermal heat pump systems have become market-available in recent years; however these systems are still not widely employed in the residential sector. This is due mainly to the high initial costs (investment and installation costs) of solar thermal heat pump systems, which limits their cost-effectiveness. Enhancing cost-effectiveness of solar thermal heat pump systems is necessary for a more effective and broader market penetration.

In this thesis, solar thermal and photovoltaic systems combined with heat pumps for heating applications are treated. The overall aims of the thesis are to: 1) investigate techno-economics of SHPs and 2) investigate possible solutions for improving system performance of a reference solar thermal and heat pump system for residential heating applications.

In the first part of the thesis, the influence of climatic boundary conditions on economic performance of SHPs has been investigated by means of: a) an economic comparison of SHPs found in the relevant literature and b) system simulations of the reference solar thermal heat pump system.

In the second part of the thesis, potential solutions for improving system performance of the reference solar thermal heat pump system with limited change in system’ costs are investigated. A systematic approach was used for investigating cost-effectiveness of the system improvements in the reference system.

Based on results of the cost-effectiveness analysis, some of the investigated system improvements were chosen for being included in the design of a novel solar thermal and air source heat pump system concept. The novel system was designed for a house standard with relatively high operating temperatures (55°C/45°C) in the space heating distribution system and for high space heating demand (123 kWh/m2·year). Finally, the thesis ends with a cost-effectiveness analysis of the novel system.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2017. 88 p.
Series
TRITA-REFR, ISSN 1102-0245
Keyword
Solar heat pump systems, techno-economics, solar thermal, system improvements, cost-effectiveness
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
urn:nbn:se:kth:diva-214552 (URN)978-91-7729-526-6 (ISBN)
Public defence
2017-10-09, Sal F3, Lindstedtvägen 26, Stockholm, 10:00 (English)
Opponent
Supervisors
Projects
MacSheepiNSPiRe
Note

QC 20170918

Available from: 2017-09-18 Created: 2017-09-15 Last updated: 2017-09-18Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Gustafsson, MarcusPoppi, StefanoHolmberg, Sture
By organisation
Fluid and Climate TechnologyApplied Thermodynamics and Refrigeration
In the same journal
Energy and Buildings
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 8 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf