Menu

Johan Sjöström

Tel

+46 72 565 58 55

Email

johan.sjostrom@ri.se

Location

Göteborg

ORCID

0000-0001-8670-062X

Johan (PhD physics, 2010) studies wildfires, their ignition, behaviour and consequences to society. He is an associate editor of International Journal of Wildland Fire.

● Global state of wildfire 2024-25

● 70 Years of observational weather data show increasing fire danger and reveal bias of model data

● Early season wildfires pose the greatest threat to Swedish buildings and people

● New grassfire danger warning model for Sweden

● Little concern for wildfires in an increasingly dry rural region in Sweden

● Overview of wildfires in Sweden

● Garden structure is critical for building survival in Swedish wildfires,

+ Show more

Ask me about

Publications

Ask me about

NoMR! - Improved Wildfire Preparedness through Cross-Sectoral Dialogue

The project aims to form a holistic description of vulnerability that is quantifiable and transferable from spatial and temporal variables. Using this as a basis, the distribution of responsibility and roles of actors can be descr…

Fire Safe Implementation of Mass Timber In Tall Buildings

Research of the fire performance of CLT and Glued Laminated Timber buildings, with visible wood surfaces.

European approach to assess the fire performance of facades

The project is formed in accordance with the Invitation to Tender for “Finalisation of the European approach to assess the fire performance of facades” (Call for tenders No 761/PP/GRO/IMA/19/1133/11140) of the European commission …

Up-scaling of lightweight multi-functional concrete and ceramic materials

Development, characterization and upscaling of lightweight materials and components. Introducing new functionalities like self-sensing, easy-to-clean, photocatalytic materials due to the addition of the nanoparticles. Accelerating…

Thermal Conductivity Measurement Using Slug Calorimeter

Do you want to characterize a material regarding its thermal conductivity or thermal transport parameters at high temperatures? We can measure effective thermal conductivity up to 1 100 °C

Thermal Conductivity Measurement using THW-method

Different fluids and pastes have different thermal conductivities at different temperatures. We perform thermal conductivity measurement on different fluids as well as oils, coolants, colloidal suspensions, aerogels, etc

Thermogravimetric Analysis and Differential Scanning Calorimetry

By simultaneous assessment of calorimetric (energy flows) and gravimetric (mass changes) measurements we can characterize the response of a material when heated or exposed to different gases.  With our 'Simultaneous Thermal A…

Thermal expansion

To ensure that a choice of material is correct throughout the temperature range of the product, it can be important to know the thermal expansion. With our equipment we can measure the thermal expansion and calculate the coefficie…

Thermal Conductivity Measurements TPS method

We measure thermal conductivity (i.e. heat conduction) using the Transient Plane Source (TPS) method according to ISO 22997-2 for which we are an accredited laboratory. The TPS method can be used to measure the thermal conductivit…

Thermal Properties

Do you want to characterize your material regarding its thermal conductivity, insulation capacity, latent heats of reactions or its stability at high temperatures?

Wildfires

In Sweden the rescue services responds to on average 5000 annual incidents of wildfires. Most of these are small and during the last 200 years the annual burnt area have decreased by about 99 %. However, societal and climatic tren…

Fire Safety of timber buildings

RISE is a global leader of research of fire safety of timber buildings, developing fire resistance calculation methods and performance based design methods.

Multiphysics

Many problems in modern science or engineering are of multiphysics character. This means that they are governed by more than one type of physics, each normally represented by a set of partial differential equations. At RISE we can…

Publications

See all DIVA publications