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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

Johann.zirngibl@cstb.fr Page 1

Johann ZirngiblCSTB France

Johann.zirngibl@cstb.fr

Johann.zirngibl@cstb.fr Page 2

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

Johann.zirngibl@cstb.fr Page 3

CEN/TC 228 deliverables EPBD Mandate M/480

NR Task leader Module EPBD numbering Title of the EPBD standard

1 bruno.ziegler@edf.fr M1-14 EN 15459-1 / TR 15459-2 Energy systems in buildings - Economic evaluation procedure

2 socal@iol.it M3-11 / M8-11 EN 15378-1 / TR 15378-2 Heating systems and DHW - Inspection of boilers

3 socal@iol.it M3-10 / M8-10 EN 15378-3 / TR 15378-4 Heating and DHW systems in buildings – Measured energy performance

4 oschatz@itg-dresden.de M3-3 EN 12831-1 / TR 12831-2 Space heating load

5 oschatz@itg-dresden.de M8-3 EN 12831-3 / TR 12831-4 DHW systems in buildings - Heat load and Characterisation of needs

6 johann.zirngibl@cstb.fr 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 joachim.seifert@tu-dresden.de M3-5 / M4-5 EN 15316-2 / TR 15316-6-2 Heating and cooling systems in buildings - Space emission

8 rainer.hirschberg@ib-rh.de M3-6 / M4-6 / M8-6 EN 15316-3 / TR 15316-6-3 Heating, cooling and DHW systems in buildings - Distribution

9 oschatz@itg-dresden.de 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 bruno.ziegler@edf.fr 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

11vaconsult@vaconsult.net

claude.francois@cstb.frM3-8-3 / M8-8-3 /M11-8-3 EN 15316-4-3 / TR 15316-6-6 Thermal solar and photovoltaic systems in buildings

12 claude.francois@cstb.frM3-8-4 / M8-8-4

M11-8-4 / M3-7 / M8-7EN 15316-4-4 / TR 15316-6-7 Building-integrated cogeneration systems

13 B.Lubinski@agfw.deM3-8-5 / M4-8-5

M8-8-5 / M11-8-5EN 15316-4-5 / TR 15316-6-8 District heating and cooling

14 socal@iol.it M3-8-8 EN 15316-4-8 / TR 15316-6-9Heating systems in buildings - Air heating overhead radiant heating systems,

including stoves (local)

15 bruno.ziegler@edf.fr M3-7 / M8-7 EN 15316-5 / TR 15316-6-10 Heating and DHW systems in buildings - Storage

16 socal@iol.it M3-8-6 / M8-8-6 EN 15316-4-6 / TR 15316-6-11 Direct electrical heater (not in mandate)

17 sjue@viessmann.com M11-8-7 EN 15316-4-7 / TR 15316-6-12 Wind turbines (not in mandate)

21.11.06 zirngibl@cstb.fr 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 zirngibl@cstb.fr 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

Johann.zirngibl@cstb.fr Page 6

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

Johann.zirngibl@cstb.fr Page 7

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

Johann.zirngibl@cstb.fr Page 8

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)

Johann.zirngibl@cstb.fr Page 9

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

Johann.zirngibl@cstb.fr Page 10

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

Johann.zirngibl@cstb.fr Page 11

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)

Johann.zirngibl@cstb.fr Page 12

BUILD UP Web Seminar CEN/TC 228 Heating systems and water based cooling systems

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