FEDS
FEDS – passionate about fire safety
Ventilation is a vital part of property fire protection, and ventilation systems must be constructed to prevent or contain the spread of fire and smoke. FEDS calculation software was developed to calculate critical parts of a duct system in case of a fire incident.
MEET THE EXPERTS BEHIND FEDS
FEDS stands for Fire Exposed Duct System. FEDS is software aiding users in optimising ventilation system insulation.
Here, you get to know the inventors.
Professor emeritus,
lars.jensen@lth.se
Affiliated with Lund University and the department of installation and climate control engineering.
Lars is a key figure providing academic expertise. His dedication to precision and innovation has played a pivotal role in shaping FEDS. His involvement ensures high quality and groundbreaking technology.
“Fire-exposed ventilation duct systems raise several questions, and among them are the following: How does radiation inside an air duct system affect the system’s design? Radiation is independent of length scale. All temperatures become the same even if the geometry is scaled up or down.
How far does radiation travel inside an air duct? There is an answer. A duct segment with a length of 1.35 diameters corresponds to a radiation transfer like a transverse disk with a temperature. A longer duct segment without any heat losses therefore corresponds to a number of parallel disks from a radiation perspective.
How does compression affect an insulation material? How should insulation consisting of layers with different densities be modeled?
How can the thermal conductivity of a porous insulation material be described physically based on the insulation material's volume fraction and fiber diameter? Polynomial functions fitted to measurement data do not consider the properties of the insulation material.”
tomas.fagergren@bsl.se
Tomas has been pivotal in incorporating practical ideas into FEDS’ development. His industry experience ensures FEDS caters to real needs within fire safety and ventilation.
“From a historical perspective, requirements for fire insulation have varied and been presented in different standard solutions and approvals regarding the thickness and length of fire insulation since the 1970s. It has also been evident that the methods of insulation vary greatly between different countries.
Overall, fire protection has evolved significantly in recent decades since building regulations introduced performance-based design since the mid-1990s, which later evolved into analytical sizing. Unfortunately, this has not been widely applied for fire insulation of ventilation ducts as tools and calculation models have been lacking.
Thus, the program idea for FEDS was born - to apply analytical sizing with the aim of creating cost-effective solutions - a tool for designers to calculate and verify fire insulation of ventilation ducts.”
och Krishna Mohan, employed as a software developer at QREO.
Björn Broberg and Krishna Mohan, dynamic experts from QREO, have contributed their technical expertise to enhance user experience. Their commitment to technological innovation has elevated user-friendliness and functionality. Thanks to their contributions, FEDS' software is intuitive and efficient for users.
OUR EXPERTS
Does your company also use FEDS?
Client Testimonials
Sanna Sävmark, Brandskyddslaget AB
My responsibilities at Brandskyddslaget vary somewhat, but approximately 50% of my work involves fire protection for ventilation. FEDS is an intuitive and effective program for assessing insulation requirements and clearance distances, among other factors. The programme has proven invaluable in several of my projects, enabling me to analyse the insulation needs of grease ducts, determine clearance distances to combustibles, and establish insulation requirements for the installation of fire gas dampers (E 60-S).
Hans Nyman, Brandskyddslaget AB
As a fire consultant primarily specialising in ventilation fire protection, I utilise FEDS on a daily basis. The program’s wide range of predefined fire scenarios and clear outputs allows me to refine the design of duct insulation in cooperation with ventilation consultants, irrespective of the chosen protection method. FEDS has deepened my comprehension of the factors influencing the insulation needs of ducts. Furthermore, FEDS provides various handbooks and background materials for installation fire protection.
Johan Rönnbäck, Briab
As a business manager and fire consultant specialising in ventilation fire protection, I utilise the programme to assist HVAC consultants with advice on designing insulation in specific cases, especially when faced with particularly challenging or ambiguous scenarios. The programme proves especially invaluable during the renovation of existing buildings, where innovative solutions are often required. With the programme, users have the opportunity to test and calculate various solutions. I find the programme highly intuitive and user-friendly.