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BUILD UP Web Seminar CEN standards for the energy performance of buildings: Results
and revision overviews
CEN/TC 228 Heating systems and water based cooling systems
26 March 2014
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Johann ZirngiblCSTB France
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Overview - CEN/TC 228 Heating systems
and water based cooling systems
Overarching Technical Building SystemsD
escr
iptio
ns
Des
crip
tio
ns
Hea
ting
Coolin
g
Dom
esti
c
Hot w
ater
Ele
ctri
city
pro
du
ctio
n
sub1 M1 sub1 M3 M4 M8 M11
1 General 1 General 15316-1 15316-1
2 Common terms and definitions; symbols, units s 2 Needs (Energy) 12831-3
3 Applications 3 Maximum Load (Power) 12831-1 12831-3
4 Ways to Express Energy Performance 4 Ways to Express Energy Performance 15316-1 15316-1
5 Building Functions and Building Boundaries 5 Emission & control 15316-2 15316-2
6 Building Occupancy and Operating Conditions 6 Distribution & control 15316-3 15316-3 15316-3
7 Aggregation of Energy Services and Energy Carriers 7 Storage & control 15316-515316-5
15316-4-3
8 Building Partitioning 8 Generation
8-1 Combustion boilers 15316-4-1 15316-4-1
8-2 Heat pumps 15316-4-2 15316-4-2 15316-4-2
8-3 Thermal solar / Photovoltaics 15316-4-3 15316-4-3 15316-4-3
8-4 On-site cogeneration 15316-4-4 15316-4-4 15316-4-4
8-5 District heating and cooling 15316-4-5 15316-4-5 15316-4-5 15316-4-5
8-6 Direct electrical heater 15316-4-6 15316-4-6
8-7 Wind turbines 15316-4-7
8-8 Radiant heating, stoves 15316-4-8
10 Measured Energy Performance 10 Measured Energy Performance 15378-3 15378-3
11 Inspection 11 Inspection 15378-1 15378-1
14 Economic Calculation 15459-1
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CEN/TC 228 deliverables EPBD Mandate M/480
NR Task leader Module EPBD numbering Title of the EPBD standard
1 [email protected] M1-14 EN 15459-1 / TR 15459-2 Energy systems in buildings - Economic evaluation procedure
2 [email protected] M3-11 / M8-11 EN 15378-1 / TR 15378-2 Heating systems and DHW - Inspection of boilers
3 [email protected] M3-10 / M8-10 EN 15378-3 / TR 15378-4 Heating and DHW systems in buildings – Measured energy performance
4 [email protected] M3-3 EN 12831-1 / TR 12831-2 Space heating load
5 [email protected] M8-3 EN 12831-3 / TR 12831-4 DHW systems in buildings - Heat load and Characterisation of needs
6 [email protected] M3-1 / M8-1M3-4 / M8-4 EN 15316-1 / TR 15316-6-1 Heating and DHW systems in buildings – General and Energy performance expression
7 [email protected] M3-5 / M4-5 EN 15316-2 / TR 15316-6-2 Heating and cooling systems in buildings - Space emission
8 [email protected] M3-6 / M4-6 / M8-6 EN 15316-3 / TR 15316-6-3 Heating, cooling and DHW systems in buildings - Distribution
9 [email protected] M3-8-1/ M8-8-1 EN 15316-4-1 / TR 15316-6-4 Heating and DHW systems in buildings – Generation - Combustion systems (boilers, biomass)
10 [email protected] M3-8-2/ M4-8-2 /M8-8-2 EN 15316-4-2 / TR 15316-6-5 Heating and DHW systems in buildings - Generation - Heat pump systems
[email protected] / M8-8-3 /M11-8-3 EN 15316-4-3 / TR 15316-6-6 Thermal solar and photovoltaic systems in buildings
12 [email protected] / M8-8-4
M11-8-4 / M3-7 / M8-7EN 15316-4-4 / TR 15316-6-7 Building-integrated cogeneration systems
13 [email protected] / M4-8-5
M8-8-5 / M11-8-5EN 15316-4-5 / TR 15316-6-8 District heating and cooling
14 [email protected] M3-8-8 EN 15316-4-8 / TR 15316-6-9Heating systems in buildings - Air heating overhead radiant heating systems,
including stoves (local)
15 [email protected] M3-7 / M8-7 EN 15316-5 / TR 15316-6-10 Heating and DHW systems in buildings - Storage
16 [email protected] M3-8-6 / M8-8-6 EN 15316-4-6 / TR 15316-6-11 Direct electrical heater (not in mandate)
17 [email protected] M11-8-7 EN 15316-4-7 / TR 15316-6-12 Wind turbines (not in mandate)
21.11.06 [email protected] Page 4
1) Energy supply
CEN TC 228/WG4 reflecting physical structure
Needs
Emission*
Distribution*
Generation*
* Including control
prEN 12831-3 (DHW needs)
prEN 15316-3
prEN 15316-2
prEN 15316-4.1 Combustion (Boiler)
prEN 15316-4.2 Heat pump
prEN 15316-4.3 Thermal solar + PV
prEN 15316-4.4 Micro CHP
prEN 15316-4.5 District heating
prEN 15316-5 Storage Storage *
21.11.06 [email protected] Page 5
Position in the general frame prEN 15603
Place of space heating and domestic hot water systems in the overall energy calculation
Building needs
System
losses
Delivered energy
Energy rating(prim. energy, CO2, etc)
Heating system loss
calculation: CEN TC 228 / WG4
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prEN 15316-2 Emission
principles
Effects due to
�non-uniform temperature distribution,
�position of heat and cooling emitter
Effect of control accuracy
as equivalent increase in space temperature.
Equivalent increased, internal temperature taking into account the emitter, is calculated by:
int;inc int;ini str ctr emb rad im hydr roomautθ = θ + ∆θ + ∆θ + ∆θ + ∆θ + ∆θ + ∆θ + ∆θ
Related to
product certification
ecodesign Directive
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prEN 15316-3 Distribution
principles
Thermal loss in a distribution system is calculated by the
basic equation which for a pipe section and a time step Input correlations to the length of pipes
Auxiliary energy
Pump and net curve with pump control mechanism (A – no control, B - dpconst, C - dpvar)
+⋅++⋅=
clevlev
W
LlHN
LLL
22
max
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prEN 15316-4-X Generation
principles
Identify Load-performance curves for
thermal efficiency (and electrical output)
PH&PG: Primary heat and power generator
SupHG: Supplementary heat generator
Ex: Example
Calculation of the heat losses(Interpolation of losses, not of efficiencies)
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prEN 15316-5 Storage
principles
General model of the storage unit
� Strong influence of stratification on energy supply used
� Stratification is linked to dynamic evolution of storage
Energy balance on layer i
DHW water scheme
Dynamic multilayer model, hourly time step
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prEN 15316-4-5 District heating and cooling
Primary energy conversion factors
Primary energy conversion factors reflect the
expenditure to deliver one unit of an energy carrier
Energy flows from multi-output systems
require additional conventions how to allocate
the primary energy to the delivered energies.
Multi-output systems (e.g. cogeneration)
Single-output systems
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Renewable Energy Contribution
Heat Pump
Ground heat exchanger
Renewable Energy Ratio calculation (RER)
fp,ren
10,6*0,2 = 2,12
23,4*1,0 = 23,4
Ep,ren = 25,52
fp,tot
10,6*2,5 = 26,5
23,4*1,0 = 23,4
Ep,tot = 49,9
RER= 25,52 / 49,90
51%
Electricity
Primary energy Ep (renwable, total)
Renewable energy
Physical approach (energy at evaporator)
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BUILD UP Web Seminar CEN/TC 228 Heating systems and water based cooling systems
Thank you
