Horw

T direct

18/06/2014

CEN TC 156 Ventilation and cooling

systems standards overview

BUILD UP Webinar

Energy performance calculation procedures and CEN

standards

Slide

CEN TC 156 Ventilation and cooling systems standards overview

WI Nmbr. WG Standard Number Title

00156193

0015619219

prEN XXXXX-1

prCEN/TR XXXXX-2

Indoor environmental input parameters for design and assessment of energy

performance of buildings addressing indoor air quality, thermal environment, lighting and

acoustics - Module M1-6; (revision of EN 15251) + accompanying TR

00156191

0015619620

prEN XXXXX-3

prCEN/TR XXXXX-4

Module M5-1 - Performance requirements for ventilation and room-conditioning

systems; (revision of EN 13779) +accompanying TR

Merged with 00156191

/ 00156196

Module M5-4 Ventilation systems - Energy performance expression + accompanying

TR

00156208

00156197

21

prEN XXXXX-5

prCEN/TR XXXXX-6

Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8 - Calculation methods for energy requirements of ventilation and air conditioning systems; (revision of EN 15241) +

accompanying TR

00156202

00156203

prEN XXXXX-7

prCEN/TR XXXXX-8

Module M5-5 - Calculation methods for the determination of air flow rates in buildings

including infiltration; (revision of EN 15242) + accompanying TR

00156204

00156205

prEN XXXXX-9

prCEN/TR XXXXX-10

Module M4-1 - Calculation methods for energy requirements of cooling systems –general (rest of EN 15243) + accompanying TR

Merged with 00156204

/ 00156205

Module M4-4 - Cooling systems – Energy performance expression + accompanying

TR

00156206

00156207

prEN XXXXX-11

prCEN/TR XXXXX-12

Module M4-3 - Calculation of the design cooling load (split from EN 15243) +

accompanying TR

00156198

00156199

prEN XXXXX-13

prCEN/TR XXXXX-14

Module M4-8 - Calculation of cooling systems – generation (split from EN 15243) +

accompanying TR

00156200

0015620122

prEN XXXXX-15

prCEN/TR XXXXX-16Module M4-7 - Calculation of cooling systems - storage – General + accompanying TR

00156194

00156195 23

prEN XXXXX-17

prCEN/TR XXXXX-18

M5-11 - Guidelines for inspection of ventilation and air conditioning systems; (revision

of EN 15239) + accompanying TR

Merged with 00156194

/ 00156195

Module M4-11, M6-11, M7-11 - Guidelines for inspection of air-conditioning systems

(revision of EN 15240) + accompanying TR

2, 18/06/2014

Slide

CEN TC 156 Ventilation and cooling systems standards - experts

Convener WG Expert Standard Number Title

Bjarne W. Olesen 19 Joint WG TC 156 / 371prEN XXXXX-1

prCEN/TR XXXXX-2Module M1-6; (revision of EN 15251)

Claus Händel 20

Claus HändelprEN XXXXX-3

prCEN/TR XXXXX-4Module M5-1 - (revision of EN 13779)

Jarek KurnitskiModule M5-4 Energy performance expression (ventilation systems)

Gerhard Zweifel 21

Gerhard Zweifel

Thomas Hartmann

prEN XXXXX-5

prCEN/TR XXXXX-6

Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8 (revision

of EN 15241)

Rémi CarriéprEN XXXXX-7

prCEN/TR XXXXX-8Module M5-5 (revision of EN 15242)

Gerhard ZweifelprEN XXXXX-9

prCEN/TR XXXXX-10

Module M4-1 Calculation of cooling systems – general (rest of EN 15243)

Roger HitchinModule M4-4 Energy performance expression (cooling systems)

Gerhard Zweifel

<-> TC 89 / ISO TC 163

prEN XXXXX-11

prCEN/TR XXXXX-12Module M4-3 - Calculation of the design cooling load

Andreas HantschprEN XXXXX-13

prCEN/TR XXXXX-14

Module M4-8 - Calculation of cooling systems –

generation

Bruno Ziegler 22 Bruno ZieglerprEN XXXXX-15

prCEN/TR XXXXX-16Module M4-7 - Calculation of cooling systems - storage

Anne-Marie

Bernard /

Rémi Carrié

23prEN XXXXX-17

prCEN/TR XXXXX-18

M5-11 - inspection of ventilation and air conditioning

systems; (revision of EN 15239)

Module M4-11, M6-11, M7-11 (revision of EN 15240)

3, 18/06/2014

Slide

Modules covered

Overarching Technical Building Systems

Descriptions Descriptions Cooling VentilationHumidifi-

cationDehumi-dification

sub1 M1 sub1 M4 M5 M6 M71 General 1 General prEN XXXXX-9 prEN XXXXX-3

2 Common terms and definitions;

symbols, units and subscripts2 Needs

3 Applications 3 Maximum Load and PowerprEN XXXXX-

11

4 Ways to Express Energy

Performance4

Ways to Express Energy

PerformanceprEN XXXXX-9 prEN XXXXX-3

5 Building Functions and Building

Boundaries5 Emission & control prEN XXXXX-7 prEN XXXXX-5 prEN XXXXX-5

6Building Occupancy and

Operating Conditions

prEN XXXXX-1

6 Distribution & control prEN XXXXX-5

7 Aggregation of Energy Services

and Energy Carriers7 Storage & control

prEN XXXXX-

15

8 Building Partitioning 8 Generation & controlprEN XXXXX-

13prEN XXXXX-5 prEN XXXXX-5 prEN XXXXX-5

9 Calculated Energy Performance 9Load dispatching and operating

conditions

10 Measured Energy Performance 10 Measured Energy Performance

11 Inspection 11 Inspection prEN XXXXX-17prEN XXXXX-

17

prEN XXXXX-

17

prEN XXXXX-

17

Slide

prEN XXXXX-5 Calculation methods for energy requirements of ventilation and air

conditioning systems (revision of EN 15241)

- Modules M5-6, M5-8, M6-5, M6-8, M7-5, M7-8

- Redistribution of content between this module and prEN XXXXX-7 (revision of EN 15242) – modular structure

- Split in 2 documents:

a. Detailed method for ventilation and air conditioning systems

- Hourly calculation step

- Comprehensive calculation of all aspects of AC systems

- “generation” (=AHU) and distribution

b. Simplified method for compact residential systems

- Based on proposal from TC 156 WG 2

- Monthly calculation step

- including heat generation (a/a HP)

5, 18/06/2014

Slide

prEN XXXXX-5 Calculation methods for energy requirements of ventilation and air

conditioning systems (revision of EN 15241) – method A

6, 18/06/2014

A DC F G (B);H

10

1 2 3 5 6 7 8

9

B

1112

4

E

Key Treatment stage Key Air type SubscriptA Frost protection / ground preheating/-cooling 1 Outdoor air ODAB Exhaust air fan 2 Preheated outdoor air ODA;prehC Heat recovery 3 Supply air after heat recovery SUP;hrD Recirculation 4 Supply air after recirculation SUP;RCAE Cooling / dehumidification 5 Supply air after cooling/dehumidification SUP;CF Humidification 6 Supply air after humidification SUP;huG Heating 7 Supply air after heating SUP;rhH Supply fan 8 Supply air entering the distribution system SUP;dis;in

9 Extract air leaving the distribution system ETA;dis;out10 Extract air entering the heat recovery / recirculation ETA;hr;in11 Extract air after heat recovery ETA;hr;out12 Exhaust air EHA

Slide

prEN XXXXX-5 Calculation methods for energy requirements of ventilation and air

conditioning systems (revision of EN 15241) – method A

New aspects:- Air flow control types (-> TC 247, EN 15232 rev.)- Supply air control types (-> TC 247, EN 15232 rev.)- Heat recovery:

- Types: - flat plate- Rotary- Pumped circuitConnection to product standards (EN 308, 13053)

- Control- Frost protection

- Recirculation control- Fan control

- Input from TC 247 – single zone / multi zone systems- Big impact on fan energy- Link to product standards (fans, new WG 17 in TC 156)

- Still to be added: adiabatic cooling

7, 18/06/2014

Slide

prEN XXXXX-7 Calculation methods for the determination of air flow rates (revision

of EN 15242)

- Full coverage of module M5-5 “emission”

- Extension towards:

- Air flow rates also for mechanical ventilation system, including VAV systems

- For required air flow rates: link to prEN XXXXX-1 (EN 15251 rev.) / prEN XXXXX-3 (EN 13779 rev.)

- Distribution leakage -> prEN XXXXX-5

- Required conditions of supply air (depending on system type and control)

8, 18/06/2014

Slide

prEN XXXXX-9 Calculation of cooling systems – general (rest of EN 15243)

- Informative annexes (many!) will be transferred to TR

- Dito for Design process related issues from normative text

- + energy performance expression

- ./. Cooling generation

- ./. Cooling load calc.

- TR also: method for treatment of ventilative cooling

9, 18/06/2014

Slide

prEN XXXXX-11 Calculation of the design cooling load

- Collaboration project with TC 89 / ISO TC 163

- Intention: use same unified model as for energy needs calculation

- Different boundary / operational conditions

- Design period climate

- Use patterns with less simultaneity factors

- Simplified method: offers from countries received

- Project not time critical, because no direct link to energy calculation

- Equipment dimensioning = engineering task, not subject to standardisation

10, 18/06/2014

Slide

prEN XXXXX-13 Calculation of cooling systems – generation

- New WI, until now covered only informative in an annex of EN 15243

- 2 Methods

- Method A: hourly calculation step- Method B: monthly calculation step

- Compression and absorption chillers

- Multiple generators handling

- “Free cooling” control option

- Direct cooling via heat rejection device

- Heat rejection types

- Air cooled condenser- Dry, wet and hybrid heat recovery devices- Control

- Connection to product standards:

- Data for performance map: EN 14825, based on EN 14511 tests- 4 measurement points not sufficient- Manufacturers: more data shall be made available

11, 18/06/2014

10075

5025

45

35

25

3

4

5

6

7

8

9

10

11

12

13

14

15

COP

PLR, %

Condenser

entering

temperature,

°C

Slide

prEN XXXXX-15 Calculation of cooling systems - storage

- New WI

- Method applicable to any calculation time step

- Covers different storage types:

- Water tanks- Ice storage- PCM

- Storage charging circuit included

12, 18/06/2014