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

Projects

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

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

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

2014–2018

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

Jan-Olof Dalenbäck Building Services Engineering
Holger Wallbaum Building Technology
Paula Femenias Building Design
Jenny Stenberg Architectural theory and methods
Pär Johansson Building Technology
Formas

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

2015–2018

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

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

2015–2018

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)

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

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

Publications

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

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
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
2017

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

Pär Johansson, Paula Wahlgren
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
2017

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

Pär Johansson, Paula Wahlgren
Energy Procedia: 11th Nordic Symposium on Building Physics, NSB2017, 11-14 June 2017, Trondheim, Norway. Vol. 132, p. 951-956
Paper in proceedings
2017

Practical Applications of SIMs: Retrofitting at the Building Scale

Pär Johansson, Bijan Adl-Zarrabi
Conference poster
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
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: Proceedings of the Sustainable Built Environment Tallinn and Helsinki Conference SBE16 — Build Green and Renovate Deep. Vol. 96, p. 170-179
Paper in proceedings
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
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: Proceedings of the 6th International Building Physics Conference, IBPC 2015. Vol. 78, p. 388-393
Paper in proceedings
2015

Vakuumisoleringspaneler i gamla byggnader

Pär Johansson, Stig Geving, Carl-Eric Hagentoft et al
Journal of Logic and Computation. 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: Proceedings of the 6th International Building Physics Conference, IBPC 2015. Vol. 78, p. 800-805
Paper in proceedings
2015

Energideklarationerna behöver kvalitetssäkras

Pär Johansson, Jan-Olof Dalenbäck, Paula Wahlgren et al
Journal of Logic and Computation. 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
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

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

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
Paper in proceedings
2012

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

Pär Johansson, Bijan Adl-Zarrabi, Carl-Eric Hagentoft
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
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
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
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
Paper in proceedings