Submitted by Maria.Kapsalaki on Thu, 10/19/2017 - 16:56
The current development in building energy efficiency towards nZEB buildings represents a number of new challenges to design and construction. One of these major challenges is the increased need for cooling in these highly insulated and airtight buildings, which is not only present in the summer period but also in the shoulder seasons and in offices even in midwinter. Ventilative cooling can be an energy efficient solution to address this cooling challenge in buildings.
The workshop will be held on Monday October 23, 2017 at the BBRI offices (Boulevard Poincaré 79, 1060) in Brussels, Belgium.
The participants will present and discuss the outcomes of IEA-EBC Annex 62 “ventilative cooling” as well as future challenges and possibilities for international collaboration.
The workshop is an initiative of IEA-EBC annex 62 & venticool and is hosted by INIVE-BBRI & KU Leuven.
Submitted by Maria.Kapsalaki on Thu, 06/01/2017 - 10:31
The current development in building energy efficiency towards nZEB buildings represents a number of new challenges to design and construction. One of these major challenges is the increased need for cooling in these highly insulated and airtight buildings, which is not only present in the summer period but also in the shoulder seasons and in offices even in midwinter. Ventilative cooling can be an energy efficient solution to address this cooling challenge in buildings.
Submitted by Maria.Kapsalaki on Fri, 03/03/2017 - 17:14
This report summarises the outcome of the work of the initial working phase of IEA ECB Annex 62 Ventilative Cooling and is based on the findings in the participating countries.
A half day seminar, organised by the Cork Institute of Technology in collaboration with IEA EBC Annex 62 – Ventilative Cooling, will be held on Wednesday, April 20, 2016 from 9:00 AM to 1:00 PM in Cork, Ireland.The event will present state of the art in utilising ventilation for reducing cooling energy demand and addressing the risk of overheating in low energy buildings.
Submitted by Maria.Kapsalaki on Mon, 04/11/2016 - 11:46
Addressing the increased potential for cooling energy demand and associated risk of overheating in new and refurbished low energy buildings is becoming an important issue for the industry. This half day seminar for researchers, designers, engineers & architects, is organised by the Cork Institute of Technology in collaboration with IEA EBC Annex 62 – Ventilative Cooling and will present state of the art in utilising ventilation for reducing cooling energy demand and addressing the risk of overheating in low energy buildings.
Submitted by Maria.Kapsalaki on Tue, 03/22/2016 - 10:30
For zero and low energy buildings, high-energy efficiency ventilation is very often confused with a complex mechanical ventilation system with heat recovery. In school gymnasiums, where large volumes have to be ventilated, and where intermittent occupation is very usual, demand controlled natural ventilation has several advantages, making this technique very attractive. High stack height makes natural ventilation very efficient, limiting the necessary number and dimensions of windows.
Submitted by Maria.Kapsalaki on Tue, 03/22/2016 - 09:35
New buildings have to satisfy ever-tightening standards regarding energy efficiency and consumption. This results in higher insulation levels and lower air leakages that reduce heating demands. However, even at moderate outdoor temperatures these buildings are easily warmed up to such a degree that in order to ensure acceptable indoor environment quality, removal of excess heat becomes unavoidable. Use of electric energy related to mechanical cooling is considered incompatible with achieving zero energy buildings (ZEB).
Submitted by Maria.Kapsalaki on Tue, 03/22/2016 - 08:54
An advanced heat and electricity saving strategy for the regulation of hybrid ventilation systems with automatic night cooling (ventilative cooling), mechanical compressor cooling, natural ventilation and exterior solar shading by the inclusion of MPC (Model Predictive Control) has been developed in this project. The focus is on the optimization of the total energy cost (cost function) as compared to indoor climate requirements and variations in the outdoor climate. During the test period, the test persons could override the automatic control of the natural ventilation and solar shading.
The venticool platform paper: “Overview of provisions for ventilative cooling within 8 European building energy performance regulations” is now available online. This study aimed to focus on regulatory measures taken or missing regarding ventilative cooling in several countries, which could either inspire developments in other countries or point out specific problems for the market uptake of this technology.
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