Submitted by Maria.Kapsalaki on Wed, 11/03/2021 - 10:22
In order to achieve nearly net zero energy use, both new and energy refurbished existing buildings will in the future need to be still more efficient and optimized. Since such buildings can be expected to be already well insulated, airtight, and have heat recovery systems installed, one of the next focal points to limiting energy consumption for thermally conditioning the indoor environment will be to possibly reducing the ventilation rate, or making it in a new way demand controlled. However, this must be done such that it does not have adverse effects on indoor air quality (IAQ).
Submitted by Maria.Kapsalaki on Wed, 11/03/2021 - 10:17
Both new and renovated existing buildings will in the future need to be optimized in such a way that can achieve to have nearly no energy use while still providing impeccable indoor climates. Since such buildings can already be assumed to be very well insulated, airtight, and to be equipped with heat recovery systems, one of the next focal points to limiting energy consumption for thermally conditioning the indoor environment will be to possibly reducing the ventilation rate, or to make it in a new way demand controlled.
Submitted by Maria.Kapsalaki on Wed, 02/12/2020 - 11:51
Many post-occupancy comfort studies of energy renovated residential buildings have documented elevated temperatures above comfort levels, not only during the summer period but also during the shoulder months. The main focus in renovation projects is on heat savings while the risk of overheating is not considered.
Submitted by Maria.Kapsalaki on Wed, 02/05/2020 - 17:21
Throughout the certification process of air ﬁlters, the major technical characteristics are evaluating. Both theoretical models and experimental methods, proves some relationships between the parameters and the performance of product. In this article we present the statistical analysis of certified products according to EN ISO16890:2016. A sample of 1800 certified products by Eurovent Certita Certification is analysed to highlight products characteristics based on quantitative approach.
Submitted by Maria.Kapsalaki on Tue, 01/28/2020 - 12:06
The current policies and regulatory frameworks in the construction sector aim to improve energy efficiency of new buildings whilst maintaining acceptable level of indoor environmental quality (IEQ) including indoor air quality (IAQ). In practice, however, there are often important trade-offs between these objectives. The aim of this paper is to investigate the concentrations of volatile organic compounds (VOCs) in a recently built residential block in the UK and the potential trade-offs between ventilation rates and VOCs.
Submitted by Maria.Kapsalaki on Wed, 04/17/2019 - 16:20
The European Commission’s Executive Agency for Small and Medium-sized Enterprises (EASME) manages parts of the Horizon 2020 framework programme for research, innovation and market uptake (2014-2020), including for energy efficiency in the buildings sector. The Agency supports projects under this programme and ensures that their results are fed to policymaking teams within the European Commission.
Submitted by Maria.Kapsalaki on Wed, 04/17/2019 - 12:13
In the research project 3for2 Beyond Efficiency, low-exergy distributed cooling and ventilation systems for application in the tropics are designed and tested in a demonstrator building in Singapore. The HVAC system designed consists of passive chilled beams for sensible cooling, fan coil units for latent cooling and dedicated outdoor air handling systems for IAQ control. The design reduces building space requirements due to less ventilation equipment.
Submitted by Maria.Kapsalaki on Wed, 04/17/2019 - 11:24
Air Handling Unit (AHU), as a system for space heating and cooling is one of the most relevant causes of energy consumption in both residential and tertiary sector buildings. As the energy efficiency of AHU is closely linked to the climate conditions, a special attention should be given about varying yearly climate conditions in different geographical locations.
Submitted by Maria.Kapsalaki on Mon, 04/15/2019 - 15:38
Recent studies have shown that ventilative cooling reduces overheating, improves summer comfort and decreases cooling loads. Therefore, it is considered as one of the most efficient way to improve summer comfort. Although, HVAC designers still lack of guidelines to improve the energy and comfort efficiency of their installations.
Submitted by Maria.Kapsalaki on Mon, 04/15/2019 - 11:54
The implementation of the Energy Performance of Buildings Directive 2010/31/EU recast puts increasing pressure to achieve better building and ductwork airtightness.
In this context, Eurovent Certita Certification decided to establish a new certification programme for Ventilation Ductwork Systems, opening a new chapter in the history of the Eurovent Certified Performance (ECP) certification mark, which concerned only products, not systems, until then.