Pär Johansson

Forskarassistent at Chalmers, Architecture and Civil 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

Showing 61 publications

2018

Performance of insulation materials for historic buildings: case-studies comparing super insulation materials and hemp-lime

Pär Johansson, Anna Donarelli, Paulien Strandberg
Proceedings of the 3rd International Conference on Energy Efficiency in Historic Buildings, EEHB2018, Visby, Sweden, 26-27 September, 2018, p. 80-88
Paper in proceedings
Show project
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2018

Renovating the Housing Stock Built Before 1945: Exploring the Relations Between Energy Efficiency, Embodied Energy and Heritage Values

Paula Femenias, Liane Thuvander, Pär Johansson et al
Springer proceedings of Cold Climate HVAC 2018, Kiruna, Sweden, 12-15 March, 2018, p. 291-301
Paper in proceedings
Show project
2018

Thermal properties of asphalt concrete: A numerical and experimental study

Raheb Mirzanamadi, Pär Johansson, Sotirios Grammatikos
Construction and Building Materials. Vol. 158, p. 774-785
Journal article
2018

Interior insulation retrofit of a brick wall using super insulation materials: design of a field testing in an industrial brick building

Pär Johansson, Paula Wahlgren
Proceedings of the 7th International Building Physics Conference, IBPC2018, Syracuse, NY, USA, 23-26 September 2018, p. 257-262
Paper in proceedings
Show project
2018

Fältmätning på äldre tegelkonstruktion med invändig tilläggsisolering av superisoleringsmaterial

Pär Johansson, Paula Wahlgren
Bygg och teknik. Vol. 2018 (5), p. 16-19
Magazine article
Show project
2018

En introduktion till dagvattenflödesmodellering i gröna tak

Kaj Pettersson, Pär Johansson, Angela Sasic Kalagasidis
Bygg & teknik. Vol. 2018 (4), p. 19-21
Magazine article
Show project
2018

Super insulation materials in the building sector: Field studies and future challenges

Pär Johansson, Bijan Adl-Zarrabi
Proceedings of the 7th International Building Physics Conference, IBPC2018, Syracuse, NY, USA, 23-26 September 2018, p. 131-136
Paper in proceedings
Show project
Show project
2018

Value creation by re-renovation – focus on the user perspective

Paula Femenias, Petra Eriksson, Liane Thuvander et al
Proceedings of the 3rd International Conference on Energy Efficiency in Historic Buildings, EEHB2018, Visby, Sweden, 26-27 September, 2018, p. 172-181
Paper in proceedings
Show project
2018

Numerical Investigation of Harvesting Solar Energy and Anti-Icing Road Surfaces Using a Hydronic Heating Pavement and Borehole Thermal Energy Storage

Raheb Mirzanamadi, Carl-Eric Hagentoft, Pär Johansson
Energies. Vol. 11 (12)
Journal article
2018

Hydronic Heating Pavement with Low Temperature: The Effect of Pre‐Heating and Fluid Temperature on Antiicing Performance

Raheb Mirzanamadi, Carl-Eric Hagentoft, Pär Johansson
Proceedings of Cold Climate HVAC 2018, Kiruna, Sweden, 12-15 March, 2018. Vol. 1
Paper in proceedings
2018

Superisoleringsmaterial i byggnader: Rekommendationer från IEA EBC Annex 65

Pär Johansson, Bijan Adl-Zarrabi, Holger Wallbaum et al
Bygg & teknik. Vol. 2018 (2), p. 18-21
Magazine article
Show project
2018

Anti-icing of road surfaces using Hydronic Heating Pavement with low temperature

Raheb Mirzanamadi, Carl-Eric Hagentoft, Pär Johansson et al
Cold Regions Science and Technology. Vol. 145, p. 106-118
Journal article
2018

Energirenovering av flerfamiljshus uppförda före 1945: De boendes perspektiv

Paula Femenias, Klara Mörk, Petra Eriksson et al
Bygg och teknik. Vol. 2018 (5), p. 10-15
Magazine article
Show project
Show project
2018

An analysis of hydronic heating pavement to optimize the required energy for anti-icing

Raheb Mirzanamadi, Carl-Eric Hagentoft, Pär Johansson
Applied Thermal Engineering. Vol. 144, p. 278-290
Journal article
2017

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

Paula Femenias, Pär Johansson, Paula Wahlgren et al
Bygg & teknik. Vol. 2017 (2), p. 32-37
Magazine article
Show project
Show project
2017

Using SIMs to re-create cultural historical values in buildings from before 1945

Pär Johansson, Paula Wahlgren
Proceedings of the 13th International Vacuum Insulation Symposium, September 20–21, 2017, Paris, France
Conference contribution
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
Journal article
Show project
Show project
2017

Renovation of buildings from before 1945: status assessment and energy efficiency measures

Pär Johansson, Paula Wahlgren
Energy Procedia. Vol. 132, p. 951-956
Paper in proceedings
2017

Practical Applications of SIMs: Retrofitting at the Building Scale

Pär Johansson, Bijan Adl-Zarrabi
Proceedings of the 13th International Vacuum Insulation Symposium, September 20–21, 2017, Paris, France
Conference poster
2017

Recreation of cultural historical values in buildings from before 1945: Inventory with focus on building physics performance

Pär Johansson, Paula Wahlgren
Proceedings of the 14th International Conference on Durability of Building Materials and Components, Ghent University, Belgium, 29-31 May, 2017
Paper in proceedings
2017

Results from real life performance assessment of aerogel blankets in buildings

Pär Johansson
Proceedings of the Advanced Building Skins Conference, October 2-3, 2017, Bern, Switzerland
Conference contribution
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
Magazine article
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
Paper in proceedings
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. Vol. 96, p. 170-179
Paper in proceedings
Show project
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
Journal article
2016

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

Pepe Tan, Pär Johansson, Angela Sasic Kalagasidis
Proceedings of the INNOSTORAGE conference, Beer Sheva, Israel
Conference contribution
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

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
Paper in proceedings
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 contribution
2016

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

Pär Johansson, Bijan Adl-Zarrabi, Angela Sasic Kalagasidis
Energy and Buildings. Vol. 130, p. 488-494
Journal article
2015

Evaluation of long-term performance of VIPs

Pär Johansson, Bijan Adl-Zarrabi, Axel Berge
Energy Procedia. Vol. 78, p. 388-393
Paper in proceedings
2015

Vakuumisoleringspaneler i gamla byggnader

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

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

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

Investigating PCM activation using transient plane source method

Pär Johansson, Angela Sasic Kalagasidis, Helen Jansson
Energy Procedia. Vol. 78, p. 800-805
Paper in proceedings
2015

Energideklarationerna behöver kvalitetssäkras

Pär Johansson, Jan-Olof Dalenbäck, Paula Wahlgren et al
Bygg & Teknik. Vol. 2015 (2), p. 44-45
Magazine article
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
Paper in proceedings
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
Paper in proceedings
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 contribution
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
Journal article
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
Energy and Buildings. Vol. 73 (April 2014), p. 92-104
Journal article
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
Paper in proceedings
2013

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

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

Literature Review of High Performance Thermal Insulation

Axel Berge, Pär Johansson
Report
2012

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

Pär Johansson, Bijan Adl-Zarrabi, Carl-Eric Hagentoft
Frontiers of Architectural Research. Vol. 1 (4), p. 334-340
Journal article
2012

Tilläggsisolering av gamla byggnader med vakuumisolering

Pär Johansson
Bygg & Teknik. Vol. 2012 (5)
Magazine article
2012

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

Pär Johansson, Bijan Adl-Zarrabi, Carl-Eric Hagentoft
Proceedings of the 5th International Building Physics Conference, May 28-31, 2012, Kyoto, Japan
Paper in proceedings
2011

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

Pär Johansson, Carl-Eric Hagentoft, Bijan Adl-Zarrabi
Proceedings of the 10th International Vacuum Insulation Symposium, Ottawa, Canada, 15-16 September, 2011
Paper in proceedings
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
Paper in proceedings
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
Paper in proceedings
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
Magazine article
2011

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

Pär Johansson, Simon Pallin, Mohammad Shahriari
Proceedings of the 12th International Conference on Building Materials and Components, Porto, Portugal, 12-15 April, 2011
Paper in proceedings
2011

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

Simon Pallin, Pär Johansson, Mohammad Shahriari
Proceedings of the 12th International Conference on Building Materials and Components, Porto, Portugal, 12-15 April, 2011
Paper in proceedings
2011

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

Simon Pallin, Pär Johansson, Carl-Eric Hagentoft
Proceedings of the the 12th International Conference of the International Building Performance Simulation Association, Sydney, Australia, 14-16 November, 2011
Paper in proceedings
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
Paper in proceedings

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Showing 12 research projects

2019–2021

Super insulation render for renovation and new constructions

Pär Johansson Building Technology
Angela Sasic Kalagasidis Building Technology
Ali Naman Karim Building Technology
Swedish Energy Agency

2019–2021

iTES - Innovative compact heat storage technologies and operation schemes for buildings connected to smart grids

Angela Sasic Kalagasidis Building Technology
Pär Johansson Building Technology
Filip Johnsson Energy Technology
Formas

2017–2018

Demonstration plant for cold storage in phase change materials

Pär Johansson Building Technology
Angela Sasic Kalagasidis Building Technology
Pepe Tan Building Technology
Nikolaos Stathopoulos Building Technology
Swedish Environmental Protection Agency

2016–2019

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

Pär Johansson Building Technology
Paula Wahlgren Building Technology
Swedish Energy Agency

2016–2019

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

Angela Sasic Kalagasidis Building Technology
Sinisa Krajnovic Fluid Dynamics
Pär Johansson Building Technology
Kaj Pettersson Building Technology
Veg Tech
Sintef Byggforsk
Framtiden
City of Gothenburg
Formas

2015–2019

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

Paula Femenias Building Design
Paula Wahlgren Building Technology
Pär Johansson Building Technology
Liane Thuvander Architectural theory and methods
Swedish Energy Agency

2015–2017

Long Term Performance of Super-Insulating Materials in Buildings

Bijan Adl-Zarrabi Building Technology
Jun Kono Building Technology
Holger Wallbaum Building Technology
Pär Johansson Building Technology
Swedish Energy Agency

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 Building Technology
Pär Johansson Building Technology
Pepe Tan Building Technology
Swedish Energy Agency

2014–2017

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

Paula Wahlgren Building Technology
Pär Johansson Building Technology
Jan-Olof Dalenbäck Building Services Engineering
European Commission (EC)

2014–2019

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

Paula Femenias Building Design
Jan-Olof Dalenbäck Building Services Engineering
Liane Thuvander Research - Architectural Theory and Method
Holger Wallbaum Building Technology
Pär Johansson Building Technology
Jan Bröchner Service Management and Logistics
Jenny Stenberg Architectural theory and methods
Formas

2013–2013

Test av tegelvägg med invändig vakuumisolering vid SINTEF/NTNU

Carl-Eric Hagentoft Building Technology
Pär Johansson Building Technology
The Lars Hierta Memorial Foundation

2010–2015

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

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

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