Ses­sion 4

Ses­si­on 4: Sum­mer com­fort and cool­ing con­cepts

Fri­day, 10 Sep­tem­ber 2021

 

The ef­fects of cli­mate change have be­come very evid­ent in re­cent years. It is there­fore all the more im­port­ant to con­sider sum­mer thermal in­su­la­tion and the res­ult­ing cool­ing loads in new build­ings and ren­ov­a­tions, and to provide re­li­able, cost-ef­fect­ive and low-con­sump­tion cool­ing con­cepts. Not only in warm cli­mates, but also mid-lat­it­udes, we will in­creas­ingly have to deal with hot spells in the fu­ture. In this series of lec­tures, pro­jects and stud­ies from South­ern Europe will be the top­ic, but also gen­er­al guidelines and po­ten­tials for sus­tain­able cool­ing here in Ger­many will be presen­ted.

 

Time (CEST) Top­ic Speak­er           
4:15 pm Wel­co­me

4:20 pm

Gui­dance for ro­bust sum­mer com­fort de­sign

 Lim­it­ing the fre­quency of over­heat­ing in sum­mer is gain­ing rel­ev­ance with warm­ing cli­mate con­di­tions. In or­der to raise aware­ness on the top­ic and en­cour­age more ro­bust design choices, PHI has de­ve­loped a “sum­mer com­fort guideline”, as well as a stress-test­ing as part of the PHPP en­ergy mod­el­ling.

4:35 pm

Keep cool and car­ry on: Pas­siv­haus coo­ling ex­pe­ri­en­ces in the warm cli­ma­tes

Click to view on Youtube (Google).
                                  

4:50 pm

Pas­siv­haus Plus high school in warm cli­ma­te

The design and con­struc­tion of a Passivhaus Plus, as sim­u­lated by PHPP, de­liv­ers out­stand­ing thermal per­form­ance and com­fort for a build­ing with a very dif­fer­ent oc­cu­pancy and use. This non-res­id­en­tial Passivhaus case study show­cases the ad­vant­ages of a mul­tidiscip­lin­ary design pro­ject team, an in­dus­tri­al­ised con­struc­tion sys­tem and a com­bined act­ive mech­an­ic­al sys­tem strategy ap­plied to high en­ergy-ef­fi­cient build­ings in warm and tem­per­ate cli­mates and at an af­ford­able con­struc­tion cost.

5:05 pm

Ques­tion and An­swer

 

5:25 pm

Pass­ive House non-res­id­en­tial build­ings against the back­ground of in­creas­ing heat waves
Con­sid­er­ing the in­creas­ing peri­ods of heat, ex­ist­ing re­com­mend­a­tions for non-res­id­en­tial Pass­ive House build­ings in Cent­ral Europe need to be re-ex­amined to de­term­ine wheth­er they will re­main vi­able in the fu­ture. Ef­fects are in­vest­ig­ated by us­ing sim­u­la­tion mod­el­ling for a school and of­fice build­ing.

5:40 pm

Sol­ar-elec­tric cool­ing – po­ten­tial and lim­it­a­tions

Ana­lys­is to in­vest­ig­ate the po­ten­tial for sol­ar-elec­tric cool­ing to cov­er a high pro­por­tion of the en­ergy de­mand (PV coupled with va­pour-com­pres­sion re­fri­ger­a­tion), ef­fects on thermal com­fort and primary en­ergy de­mand

5:55 pm

Pass­ive Houses and sol­ar cool­ing in hot and hu­mid cli­mates (sol.e.h.²)
The com­bin­a­tion of a highly ef­fi­cient build­ing en­vel­ope to Pass­ive House Stand­ard and a sol­ar hy­brid cool­ing sup­ply with an ab­sorp­tion re­fri­ger­at­or and a va­pour-com­pres­sion re­fri­ger­a­tion sys­tem makes it pos­sible in hot and hu­mid cli­mates – such as that in Guang­zhou, south­ern China – to cre­ate sus­tain­able and eco­nom­ic build­ing op­er­a­tions. 

 

6:10 pm Ques­tion and An­swer  

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