Monitoring results and experiences from Passive House in Greece

IPHC17 Vienna Austria Cooling & Dehumidification Workshop Author : Stefan Pallantzas ©Passivistas2017

Presentation:

Monitoring results and experiences from Passive Houses in Greece

Stefan PallantzasCivil Eng. PH Certifier


Project locationPapagou – Athens

GREECE


Project locationPapagou – Athens

GREECE


TFA:

1ST FLOOR = 85 Τ.Μ.GROUND FLOOR = 30 Τ.Μ.

Project description


Application of EIFS on 1st floor + ground floor

Exterior walls

Building envelope

Heating demand 301 kWh/(m2a)Heating load 129 W/m2Cooling demand 77 kWh/(m2a)Cooling load 68 W/m2Estimated airtightness n50 =5.00 /h

Sensors


Specific building characteristics with reference to the treated floor area

Treated floor area m² 114,6 Criteria Fullfilled?2

Space heating Heating demand kWh/(m²a) 12 ≤ 15 -

Heating load W/m² 11 ≤ - -

Space cooling Cooling & dehum. demand kWh/(m²a) 12 ≤ 16 16

Cooling load W/m² 10 ≤ - 11

Frequency of overheating (> 25 °C) % - ≤ - -

Frequency excessively high humidity (> 12 g/kg) % 0 ≤ 10 yes

Airtightness Pressurization test result n50 1/h 0,6 ≤ 1,0 yes

PE demand kWh/(m²a) 85 ≤ - -

PER demand kWh/(m²a) 48 ≤ 45 48

kWh/(m²a) 68 ≥ 60 63

2 Empty field: Data missing; '-': No requirement

EnerPHit Plus? yes

yes

yes

Alternative

criteria

I confirm that the values given herein have been determined following the PHPP methodology and based on the characteristic

values of the building. The PHPP calculations are attached to this verification.

yes

Non-renewable Primary Energy (PE)

Primary Energy

Renewable (PER) Generation of renewable

energy



PHPP is right!Consumption is low

Comfort is goodPeople are satisfied


PHPP is right!Consumption is low

Comfort is goodPeople are satisfied



Critical Period

withoutNight-

ventilation

It’s not always possible for night-

ventilation through windows



PH goes slowly into Summer

(the thermal mass effect)


PH responds quickly to active cooling


PH goes slowly into Autumn



PH goes slowly into Autumn




2016Month TOTAL PHPP MEASURED COOLING PHPP COOLING MEASURED

JUNE 2016 251,31 195,55 48,71 35,07

JULY 2016 381,26 246,40 171,90 55,51

AUGUST 2016 368,42 251,85 159,06 58,90

SEPTEMBER 2016 216,93 204,65 14,33 7,75

OCTOBER 2016 217,36 186,11 - 1,69

Total measured cooling consumption


Data measured:Indoor/Outdoor TmpIndoor/outdoor HumCooling Consumption

(electricity)


Athens-Jessica measured Latitude ° 37,9 Longitude ° 23,73 Altitude [m] 15 Name of locationAthens-Jessica measuredΔTSummer [K]

Exterior temperature 9,9 9,9 12,7 15,7 20,6 27,8 29,3 28,9 24,1

Radiation North 16,0 20,0 29,0 36,0 46,0 51,0 49,0 39,0 30,0

Radiation East 45,0 44,0 79,0 98,0 115,0 121,0 129,0 123,0 86,0

Radiation South 106,0 88,0 120,0 105,0 92,0 84,0 91,0 112,0 120,0

Radiation West 43,0 48,0 79,0 95,0 115,0 119,0 124,0 121,0 92,0

Horizontal radiation 66,0 76,0 132,0 168,0 206,0 224,0 232,0 210,0 153,0

Dew point temperature 4,7 4,3 6,4 8,4 11,5 14,3 15,7 15,6 14,7

Sky temperature -2,3 -1,7 0,1 2,2 6,5 10,4 12,6 11,1 10,5

Specific building characteristics with reference to the treated floor area

Treated floor area m² 114,6 Criteria Fullfilled?2

Space heating Heating demand kWh/(m²a) 11 ≤ 15 -

Heating load W/m² 11 ≤ - -

Space cooling Cooling & dehum. demand kWh/(m²a) 15 ≤

Cooling load W/m² 10 ≤ -

Frequency of overheating (> 25.2072070029144 °C) % - ≤ - -

Frequency excessively high humidity (> 12 g/kg) % 0 ≤ 10 yes

Airtightness Pressurization test result n50 1/h 0,6 ≤ 1,0 yes

PE demand kWh/(m²a) 88 ≤ - -

PER demand kWh/(m²a) 49 ≤ 53 49

kWh/(m²a) 67 ≥ 60 56

2 Empty field: Data missing; '-': No requirement

yes

Alternative

criteria

yes

Non-renewable Primary Energy (PE)

Primary Energy

Renewable (PER) Generation of renewable

energy

Internal heat gains

64283 Utilisation pattern: 10-Dwelling

Values: 2-Standard

20,0 Interior temp. summer [°C]: 25,2

3,0 IHG cooling case [W/m²]: 3,0 Occupancy

204 Mechanical cooling: x 3 1-Standard (only for residential buildings)

DE-Germany

Passive House Institute

Rheinstr. 44/46

Darmstadt

HessenCalibration of Climate Data in PHPP

according to measures


Data from MinisplitManufacturer


Credits : Jürgen Schnieders

Measured data, connected into PHPP

Average Internal Temperature °C 25,21

Jun Jul Aug Sep

Average External Temperature °C 28,64 27,91 27,46 24,25

Whole Months 26,38 27,91 27,50 22,78

The extraordinary performance of the

Minisplit

ONLY RESIDENCE COOLING (84,92 m2 TFA)

kWh kWh/(m²a) SEER kWh kWh/(m²a) SEER

Cooling Measured 1.207,73 10,5 8,87 1.207,73 12,74 8,87

Cooling Demand PHPP 1480 12,9

Dehumidification PHPP 75

Total PHPP 1555 1.152,63 12,16

Difference 29% -5%


Better Distribution of cooling


Keep it simple, stupid

Fan250m3/h

Fan

Minisplit500m3/h

Better Distribution of cooling



Comparing direct electricity heating

with minisplit


Comparing direct electricity heating

with minisplit


2017Month TOTAL PHPP MEASURED HEATING PHPP HEATING MEASURED

JAN 2017 402,32 448,24 137,96 217,08

FEB 2017 361,14 336,24 131,05 117,53

MAR 2017 269,61 265,89 60,26 53,69

2016Month TOTAL PHPP MEASURED HEATING PHPP HEATING MEASURED

NOVEMBER 2016 237,57 237,60 2,96 33,28

DECEMBER 2016 390,48 402,90 98,12 185,56


Thermographic

ExaminationInside

Winter : Ext.Temp= 0°C

Summer: Ext.Temp= 36°C





Credits : Wolfgang Feist

Passive House +RES

Always an Advantage!


Thank You!Passive HouseLive in comfort!Save Energy!Save the planet!

Environment

Monitoring results and experiences from Passive House in Greece