Posts Tagged ‘demand controlled ventilation (DCV)’

August 26, 2015

Workshop on “The impact of sub-hourly data on legislation, buildings and services” at the conference on CLIMA 2016!

Ian Knight, John Woollett and Petra Vladykova Bednarova will held a workshop on “The impact of sub-hourly data on legislation, buildings and services” at the conference on Clima 2016, Aalborg, Denmark. CLIMA 2016 ( will especially focus on energy efficient building and HVAC system performance in practice both in relation to fulfillment of the intended […]...

AUTHOR: Petra Vladykova Bednarova

August 24, 2015

DCV, VOCs and moisture set points in a multifamily building!

A traditional mechanical ventilation system with heat recovery (MVHR) for multifamily houses runs on a constant air volume (CAV) principle. A problem, is that a CAV-system will ventilate unnecessarily much…...

AUTHOR: Akram Abdul Hamid

August 17, 2015

A task ahead for Sweden: Renovation of more than a million dwellings in apartment buildings!

To fulfill the demands by the directives of the European Union 2020 [1] and 2050 [2], Sweden must retrofit its current building stock in order to achieve a lower energy…...

AUTHOR: Akram Abdul Hamid

August 11, 2015

What is the moisture supply in apartments in Sweden?

From 1950 until 1975 approximately 1.3 million apartments were built in Sweden. Now, a considerable part of these are in need of renovation.  The DCV automatically regulates the air change…...

AUTHOR: Akram Abdul Hamid

July 23, 2015

Paper accepted to HVAC Cold Climate 2015 on Effects of Different Production Scenarios in a Building with VAV versus DCV system!

My paper has been reviewed and accepted to the conference on HVAC Cold Climate 2015 in China (conference link). The conference takes place in October 20, China. The paper deals…...

AUTHOR: Petra Vladykova Bednarova

June 26, 2015

Demand controlled ventilation and active & passive beams application in Latvia!

In May 2015, Swegon Air Academy has organized another succesful seminar on topic of  “Effective ventilation systems – practical examples of calculation methods and experience” with Carlos Lisboa and myself…...

AUTHOR: Petra Vladykova Bednarova

We write about


May 26, 2015

New recording of Francesco Errico´s presenting his master thesis was added!

Check out the recording of Francesco Erico´s Master Thesis about demand controlled ventilation – study on energy and comfort! Video link Find his thesis at his profile page (link…...

AUTHOR: Petra Vladykova Bednarova

April 28, 2015

New article published in REHVA Journal on demand controlled ventilation by John Woollett and Mads Mysen!

In REHVA Journal March 2015, new article about “Commissioning for energy-optimal Demand-Controlled Ventilation” was published. The authors of the article are John Woollett, Mads Mysen, Peter G. Schild and Axel…...

AUTHOR: Petra Vladykova Bednarova

March 13, 2015

Payback time of 7 years in real school building with demand controlled ventilation!

I got my hands on interesting master thesis from Juha Pasila from Finland about “Demand-controlled ventilation in school buildings”. Juha had the chance to monitor an old school with standard…...

AUTHOR: Petra Vladykova Bednarova

February 27, 2015

DCV: Load test and VAV control form!

We recommend an automated load test with minimum and maximum supplied airflow rate to all the rooms for maximum and reduced AHU load conditions. If it is not possible to…...

AUTHOR: John Woollett

February 24, 2015

DCV: Balancing method for the different strategies!

Pressure controlled DCV must be balanced in the following way: control the placement of the pressure sensor set the right pressure set point adjust the control dampers in VAV systems…...

AUTHOR: John Woollett