Pär Johansson

Forskarassistent at Department of Civil and Environmental Engineering, Building Technology

Pär Johansson is since June 2015 assistant professor at the Division of Building Technology, research team Building Physics Modelling. Pär works with high performance thermal insulation (superinsulation) materials, materials for thermal storage (heat and cold) and solutions for green and blue roofs. The aim of his research is to reduce the energy use in the existing building stock while minimizing risks when new materials are used in combination with old building techniques.Vacuum insulation panels (VIP), aerogel based products (ABP) and phase change materials (PCM) are investigated and tested in field and laboratory. Risks when new materials are used in combination with old building techniques are identified by building characterization, measurements and modelling of temperature, relative humidity, indoor moisture production, and thermal properties of insulation materials and PCMs.Pär is leading a work package on thermal energy storage solution in Chalmers Energy Area of Advance, profile area energy in urban development and participates in the national transdisciplinary centre of excellence SIRen.

Source: chalmers.se

Projects

2015–2017

Long Term Performance of Super-Insulating Materials in Buildings

Bijan Adl-Zarrabi Department of Civil and Environmental Engineering, Building Technology
Jun Kono Department of Civil and Environmental Engineering, Building Technology
Holger Wallbaum Department of Civil and Environmental Engineering, Building Technology
Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Swedish Energy Agency

2017–2018

Demonstration plant for cold storage in phase change materials

Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Angela Sasic Kalagasidis Department of Civil and Environmental Engineering, Building Technology
Pepe Tan Department of Civil and Environmental Engineering, Building Technology
Swedish Environmental Protection Agency

2016–2019

Preserve and improve energy efficiency in listed buildings using super insulation materials

Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Paula Wahlgren Department of Civil and Environmental Engineering, Building Technology
Swedish Energy Agency

2014–2018

National Transdisciplinary Centre of Excellence for Integrated Sustainable Renovation (SIRen)

Jan-Olof Dalenbäck Department of Civil and Environmental Engineering, Building Services Engineering
Holger Wallbaum Department of Civil and Environmental Engineering, Building Technology
Paula Femenias Department of Architecture, Building Design
Jenny Stenberg Department of Architecture, Architecture Theory and Method
Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Formas

2010–2015

Homes for tomorrow. Building solutions for tomorrow as a reference for today

Greg Morrison Department of Civil and Environmental Engineering, Water Environment Technology
Karin Lundgren Department of Civil and Environmental Engineering
Paula Femenias Department of Architecture, Building Design
Carl-Eric Hagentoft Department of Civil and Environmental Engineering, Building Technology
Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Formas

2015–2018

Re-renovation: Possibilities for increased energy efficiency and the re-creation of cultural historical values

Paula Femenias Department of Architecture, Building Design
Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Paula Wahlgren Department of Civil and Environmental Engineering, Building Technology
Liane Thuvander Department of Architecture, Architecture Theory and Method
Swedish Energy Agency

2016–2019

Potentials of using existing roofs for mitigation of storm water flooding risks in urban areas

Angela Sasic Kalagasidis Department of Civil and Environmental Engineering, Building Technology
Sinisa Krajnovic Department of Applied Mechanics, Fluid Dynamics
Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Kaj Pettersson Department of Civil and Environmental Engineering, Building Technology
Formas
City of Gothenburg
Veg Tech
Sintef Byggforsk
Framtiden

2015–2018

Evaluation and optimization of a heat storage with phase change materials for better energy management in buildings - field studies, modeling and laboratory experiments

Angela Sasic Kalagasidis Department of Civil and Environmental Engineering, Building Technology
Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Pepe Tan Department of Civil and Environmental Engineering, Building Technology
Swedish Energy Agency

2014–2017

Towards improved compliance and quality of the works for better performing buildings

Paula Wahlgren Department of Civil and Environmental Engineering, Building Technology
Pär Johansson Department of Civil and Environmental Engineering, Building Technology
Jan-Olof Dalenbäck Department of Civil and Environmental Engineering, Building Services Engineering
European Commission (EC)

2013–2013

Test av tegelvägg med invändig vakuumisolering vid SINTEF/NTNU

Carl-Eric Hagentoft Department of Civil and Environmental Engineering, Building Technology
Pär Johansson Department of Civil and Environmental Engineering, Building Technology
The Lars Hierta Memorial Foundation

There might be more projects where Pär Johansson participates, but you have to be logged in as a Chalmers employee to see them.

Publications

2017

Renoveringsbehov i äldre hus: möjligheter för energieffektivisering och bevarande av kuturmiljö

Paula Femenias, Pär Johansson, Paula Wahlgren et al
Bygg & teknik. Vol. 2017 (2), p. 32-37
Journal article - popular science
2017

Correction of the enthalpy–temperature curve of phase change materials obtained from the T-History method based on a transient heat conduction model

Pepe Tan, Michael Brütting, Stephan Vidi et al
International Journal of Heat and Mass Transfer. Vol. 105 (February 2017), p. 573–588
Scientific journal article - peer reviewed
2016

Evaluation of a modified co-heating test for in-situ measurements of thermal transmittance of single family houses

Angela Sasic Kalagasidis, Emma Brycke, Jannicke Nilssen et al
Proceedings of the 13th International Conference on Thermal Performance of the Exterior Envelope of Whole Buildings, Clearwater Beach, FL, USA, 4-8 December, 2016
Conference paper - peer reviewed
2016

Pending for Renovations: Understanding the Conditions of the Multi-family Housing Stock from before 1945

Pär Johansson, Paula Femenias, Liane Thuvander et al
Energy Procedia: Proceedings of the Sustainable Built Environment Tallinn and Helsinki Conference SBE16 — Build Green and Renovate Deep. Vol. 96, p. 170-179
Conference paper - peer reviewed
2016

Evaluation of PCM activation using changes in physical properties during phase transition for visualization of passive building envelope technologies

Pär Johansson, Robert Paberit, Johan Öjerborn et al
Proceedings of the 9th International Conference on Indoor Air Quality Ventilation & Energy Conservation In Buildings, IAQVEC 2016, October 23-26, 2016, Songdo, Incheon, Republic of Korea
Conference paper - peer reviewed
2016

Evaluation of 5 years’ performance of VIPs in a retrofitted building façade

Pär Johansson, Bijan Adl-Zarrabi, Angela Sasic Kalagasidis et al
Energy and Buildings. Vol. 130, p. 488-494
Scientific journal article - peer reviewed
2016

Interior Insulation Retrofit of a Brick Wall Using Vacuum Insulation Panels: Re-Creation of Cultural Historical Values in Buildings from before 1945

Pär Johansson, Paula Wahlgren,
Proceeding of the International RILEM Conference Materials, Systems and Structures in Civil Engineering 2016: Segment on Historical Masonry, August 22-24, 2016, Lyngby, Denmark
Conference poster
2016

Simulating wind-driven rain on building facades using Eulerian multiphase with rain phase turbulence model

Kaj Pettersson, Sinisa Krajnovic, Angela Sasic Kalagasidis et al
Building and Environment. Vol. 106, p. 1-9
Scientific journal article - peer reviewed
2016

Tak i urbana miljöer för att minska risken för översvämning vid skyfall

Pär Johansson, Angela Sasic Kalagasidis, Kaj Pettersson et al
Bygg & teknik. Vol. 2016 (4), p. 48-50
Journal article - popular science
2016

Design evaluation and improvements of a latent heat based thermal energy storage system

Pepe Tan, Pär Johansson, Angela Sasic Kalagasidis et al
Proceedings of the INNOSTORAGE conference, Beer Sheva, Israel
Conference paper - non peer reviewed
2016

Manipulation of phase transition temperatures and supercooling of sugar alcohols based Phase Change Materials (PCMs) by urea

Johan Göhl, Robert Paberit, Erik Rilby et al
Proceedings of the INNOSTORAGE conference, Beer Sheva, Israel
Conference paper - non peer reviewed
2015

Spread in energy use in buildings dependent on choice of heating and ventilation system

Pär Johansson, Paula Wahlgren,
Proceedings of the 36th AIVC Conference, 23–24 September, 2015, Madrid, Spain, p. 204-212
Conference paper - non peer reviewed
2015

Long-term performance of vacuum insulations panels in buildings and building systems

Pär Johansson, Bijan Adl-Zarrabi, Axel Berge et al
Proceedings of the 12th International Vacuum Insulation Symposium, September 19-20, 2015, Nanjing, China, p. 136-139
Conference paper - non peer reviewed
2015

Investigating PCM activation using transient plane source method

Pär Johansson, Angela Sasic Kalagasidis, Helén Jansson et al
Energy Procedia: Proceedings of the 6th International Building Physics Conference, IBPC 2015. Vol. 78, p. 800-805
Conference paper - peer reviewed
2015

Evaluation of long-term performance of VIPs

Pär Johansson, Bijan Adl-Zarrabi, Axel Berge et al
Energy Procedia: Proceedings of the 6th International Building Physics Conference, IBPC 2015. Vol. 78, p. 388-393
Conference paper - peer reviewed
2015

Energideklarationerna behöver kvalitetssäkras

Pär Johansson, Jan-Olof Dalenbäck, Paula Wahlgren et al
Bygg & Teknik. Vol. 2015 (2), p. 44-45
Journal article - popular science
2015

Vakuumisoleringspaneler i gamla byggnader

Pär Johansson, Stig Geving, Carl-Eric Hagentoft et al
Bygg & Teknik. Vol. 2015 (2), p. 57-60
Journal article - popular science
2014

Air leakages in a retrofitted building from 1930: measurements and numerical simulations

Pär Johansson, Angela Sasic Kalagasidis,
Proceedings of the 35th AIVC Conference, 24-25 September, 2014, Poznan, Poland, p. 341-349
Conference paper - non peer reviewed
2014

Retrofitting a brick wall using vacuum insulation panels: measured hygrothermal effect on the existing structure

Pär Johansson, Stig Geving, Carl-Eric Hagentoft et al
Proceedings of the 10th Nordic Symposium on Building Physics, June 15-19, 2014, Lund, Sweden
Conference paper - peer reviewed
2014

Interior insulation retrofit of a historical brick wall using vacuum insulation panels: Hygrothermal numerical simulations and laboratory investigations

Pär Johansson, Stig Geving, Carl-Eric Hagentoft et al
Building and Environment. Vol. 79, p. 31-45
Scientific journal article - peer reviewed
2014

Analytical model to calculate the temperature increase in a low conductive material covered by a highly conductive layer

Pär Johansson, Johan Claesson,
Proceedings of the 10th Nordic Symposium on Building Physics, June 15-19, 2014, Lund, Sweden
Conference paper - peer reviewed
2014

Retrofitting of a listed brick and wood building using vacuum insulation panels on the exterior of the facade: Measurements and simulations

Pär Johansson, Carl-Eric Hagentoft, Angela Sasic Kalagasidis et al
Energy and Buildings. Vol. 73 (April 2014), p. 92-104
Scientific journal article - peer reviewed
2013

Interior Insulation Retrofit of a Brick Wall Using Vacuum Insulation Panels: Design of a Laboratory Study to Determine the Hygrothermal Effect on Existing Structure and Wooden Beam Ends

Pär Johansson, Berit Time, Stig Geving et al
12th International Conference on Thermal Performance of the Exterior Envelopes of Whole Buildings, Clearwater, United States, 1-5 December 2013
Conference paper - peer reviewed
2013

Vacuum insulation panels (VIP) in refrigerator room, freezing room & fridge

Samuel Brunner, Karim Ghazi Wakili, Pär Johansson et al
Proceedings of the 11th International Vacuum Insulation Symposium, September 18-19, 2013, Dübendorf, Switzerland, p. 25-26
Conference paper - non peer reviewed
2012

Using transient plane source sensor for determination of thermal properties of vacuum insulation panels

Pär Johansson, Bijan Adl-Zarrabi, Carl-Eric Hagentoft et al
Frontiers of Architectural Research. Vol. 1 (4), p. 334-340
Scientific journal article - peer reviewed
2012

Literature Review of High Performance Thermal Insulation

Axel Berge, Pär Johansson,
Report
2012

Tilläggsisolering av gamla byggnader med vakuumisolering

Pär Johansson,
Bygg & Teknik. Vol. 2012 (5)
Journal article - popular science
2012

Using Transient Plane Source Sensor for Determination of Thermal Properties of Vacuum Insulation Panels

Pär Johansson, Bijan Adl-Zarrabi, Carl-Eric Hagentoft et al
Proceedings of the 5th International Building Physics Conference, May 28-31, 2012, Kyoto, Japan
Conference paper - peer reviewed
2011

Energieffektiviseringar – vilka risker finns och hur ska de hanteras?

Johan Stein, Carl-Eric Hagentoft, Jesper Arfvidsson et al
Bygg & Teknik. Vol. 2011 (2), p. 30-34
Journal article - popular science
2011

In situ Measurements of Façade Retrofitted with Vacuum Insulation Panels

Pär Johansson,
Proceedings of the 10th International Vacuum Insulation Symposium, Ottawa, Canada, 15-16 September, 2011
Conference paper - peer reviewed
2011

Measurements of Thermal Properties of Vacuum Insulation Panels by using Transient Plane Source Sensor

Pär Johansson, Carl-Eric Hagentoft, Bijan Adl-Zarrabi et al
Proceedings of the 10th International Vacuum Insulation Symposium, Ottawa, Canada, 15-16 September, 2011
Conference paper - peer reviewed
2011

Stochastic Modeling of Moisture Supply in Dwellings Based on Moisture Production and Moisture Buffering Capacity

Simon Pallin, Pär Johansson, Carl-Eric Hagentoft et al
Proceedings of the the 12th International Conference of the International Building Performance Simulation Association, Sydney, Australia, 14-16 November, 2011
Conference paper - peer reviewed
2011

Assessment of the Risk for Mold Growth in a Wall Retrofitted with Vacuum Insulation Panels

Pär Johansson,
Proceedings of the 9th Nordic Symposium on Building Physics, Tampere, Finland, 29 May-2 June, 2011
Conference paper - peer reviewed
2011

Development of a Risk Assessment Procedure Applied on Building Physics: Part Two; an Applicability Study

Simon Pallin, Pär Johansson, Mohammad Shahriari et al
Proceedings of the 12th International Conference on Building Materials and Components, Porto, Portugal, 12-15 April, 2011
Conference paper - peer reviewed
2011

Development of a Risk Assessment Procedure Applied on Building Physics: Part One; Model Development

Pär Johansson, Simon Pallin, Mohammad Shahriari et al
Proceedings of the 12th International Conference on Building Materials and Components, Porto, Portugal, 12-15 April, 2011
Conference paper - peer reviewed
2010

Hygrothermal Conditions in Ventilated Cathedral Ceilings. Influences on Roof Ventilation and Emissivity. Field Study and Analysis

Pär Johansson,
Proceedings of the 11th International Conference on Thermal Performance of the Exterior Envelopes of Whole Buildings, Clearwater Beach, Florida, December 5-9, 2010
Conference paper - peer reviewed
2008

Underlag för projektering av kyla i ny vårdbyggnad på Sahlgrenska Universitetssjukhuset

Erik Backman, Eric Eliasson, Pär Johansson et al
Bachelor Thesis (Kandidatexamen)