Cooling and dehumidification (in English)
Friday, 3 May 2019, 11:15 am, Kammermusiksaal (level 1)
The majority of buildings built today and into the next century will not be constructed in heating dominated climates, but in cooling dominated locations. The rapid urbanisation is seeing new megacities with large urban populations emerge across the warm, hot and very hot climate zones. The desire for cooling in homes and other buildings and Passive House has a critical role to play in these regions if the world is to meet its climate goals.
A number of presentations will investigate the topic of cooling and dehumidification in Passive House buildings, with results from realised projects. The unique pilot projects will show how Passive House buildings can be realised in challenging climates and dramatically reduce the need for active cooling and the associated energy demand.
Cooling: what's worth knowing
|Like all buildings in warm and hot climates, Passive Houses will often need active cooling to achieve comfortable indoor conditions (adaptive comfort is not pursued). The general principles such as solar control, minimised internal heat gains, night-time ventilation, airtightness and insulation certainly work: Monitoring results show that low cooling energy demands and high thermal comfort are achieved in Passive House buildings. Thermal inertia and very low cooling loads in Passive Houses allow for simplified, low-cost, efficient cooling systems. In humid climates, these systems also have to provide adequate dehumidification. The presentation will provide substantial evidence for these statements.|
Pilot Passive House in hot countries - results from monitoring
The feasibility of Passive House buildings in the Very Hot climate was firstly investigated by the Passive House Institute through research projects dealing with transient simulations on sample buildings and then demonstrated with the design and construction of the pilot Passive House in Dubai in 2016. An important feature of this project was the monitoring system, designed to track the actual climate data, indoor quality, energy consumption, effectiveness of the photovoltaic field, and the electric storage system. This presentation shows results from the monitoring over the years 2017 and 2018. Additionally, designed data is compared against actual measurements as the chances for improvement in the design of Passive House in similar climates are examined.
|12:05 am||Deep retrofit of a manufacturing building in hot and humid climate||Dragos Arnautu|
|The Star Innovation Center is a milestone in industrial energy efficient retrofitting in a tropical monsoon climate. To honour these ground-breaking achievements, the Passive House Institute has awarded it the EnerPHit Pilot Project Certification. During the consultancy and certification stages, the PHI has actively contributed with valuable consultancy and also benefitted from the pioneering work of everyone involved in the planning and execution process. Such projects help us all grow and enable the Passive House Standards to improve. The presentation will highlight the most important decisions and steps that were taken in the design and build process. The ultimate goal is to evolve together towards the sustainable future we all envision.|
|12:30 am||Summer and cooling strategies implemented in social housing in hot and humid climate||Elena Reyes, Javier Florez|