Cool­ing and de­hu­mid­i­fic­a­tion

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.


Time Top­ic Speak­er

11:15 am

Cool­ing: what's worth know­ing

Jür­gen Schnieders
  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.  
11:40 am

Pi­lot Pass­ive House in hot coun­tries - res­ults from mon­it­or­ing

Marco Fil­ippi

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