Workshop 3: RealizingnZEBHospitalBuildings · 19/05/2016 1 Workshop 3 - Realizing nZEB Hospital Buildings Together Wim Maassen ... University of Technology, Department Built ... 2012

Workshop 3:

Realizing nZEB Hospital Buildings

together

Date: 23rd May 2016Time: 10.30-12.00 Location: Columbinesalen

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Workshop 3 - Realizing nZEBHospital Buildings Together

Wim Maassen

Date: 23rd May 2016Time: 10.30-12.00 Location: Columbinesalen

Inspiration & Enthusiasm

Wubbo Ockels (1946‐2014)

Workshop - Realizing nZEB Hospital Buildings together | 22nd-25th May 2016

Expected Workshop Results

Advice to REHVA:

How can Hospital Buildings achieve nZEB?

What are the most promising technical solutions?

What is necessary to implement these solutions in practice?

How can REHVA stimulate the above?

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Your Facilitators

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Wim MaassenLeading Professional – Royal HaskoningDHVTU/e Fellow – Eindhoven University of Technology

Hans BesselinkSenior Consultant – Royal HaskoningDHVREHVA FellowTVVL Delegate

Dave BaasGraduate Student Building Services – Eindhoven University of Technology, Department Built Environment


Royal HaskoningDHV

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New University Hospital Aalborg Construction

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Royal HaskoningDHV

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Rotterdam Erasmus Medical CenterProject Management, Building Services


Royal HaskoningDHV

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Amsterdam VU Medical CenterMulti disciplines, Energy Master Planning, Imaging Center, Diagnostic Center, BREEAM

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Project: nZEB Hospital Buildings

Royal HaskoningDHV executes project with Eindhoven University of Technology. Supported by TVVL and REHVA.

Goal: Give information and insight in nZEB developments Contribute to the road to nZEB

Focus: Existing Hospitals: energy saving potential and measures New Hospitals: optimized solutions and realistic nZEB

definitions

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Related research projects:

Reduced ventilation for isolation rooms (AMC Rotterdam)

Renovation existing Policlinic (AMC Amsterdam)

Feasibility NL nZEB Hospital definitions

Closing the Energy Performance Gap

Transformation of multi- to one-patient rooms (AMC Utrecht)

Project: nZEB Hospital Buildings

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Program

Introduction - Explanation workshop 20 min

Workshop part I - Feedback part I 25 min

Break 5 min

Workshop part II - Feedback part II 25 min

Advice to REHVA - Roundup 15 min

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Roadmap to nearly Zero Energy Buildings

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2014: The Netherlands compete in the REHVA Student Competition

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Energy Performance CoefficientOffices

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Energy Performance CoefficientOffices

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nZEB is technically feasible!

2011 TNT Centre HoofddorpEPC= 0.67, including bio‐fuel CHP ‐1.6 LEED platinum

EPC= ‐0.298 & BREEAM outstanding

2012 Venco Campus Eersel


NL nZEB Definitions

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DRAFT - NL nZEB definitions(July 2015)

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Building

function

Energy

demand

[kWh/m2.y]

Energy use

[kWh/m2.y]

Sustainable

energy [%]

Dwellings 25 25 50

Offices 50 25 50

Schools 50 80 50

Health Care

facilities

65 120 50

∆EPC(2015)

-/- 100%

> -/- 100%

-/- 50%


NL Fossil Energy Use

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Schoenmakers I., 2014, A systematic approach to obtain energy reduction in the complex HVAC systems of UMCs, MSc thesis TU/e. Eindhoven, Netherlands

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Energy use AMC

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Energy Use AMCventilation, heating & cooling

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Energy Use AMCVentilation, heating & cooling

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NL nZEB Hospital Buildings scores

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Variants Energy demand

[kWh/m2.y]

Energy use

[kWh/m2.y]

Sustainable

energy [%]

Draft NL nZEB

Definitions

65 120 50

Existing NL

Hospitals

200 300 ?

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3Use fossilenergy

efficiently

1Reduce energy demand

2Apply sustainable energy sources

Trias Energetica method

nZEB approach (Trias Energetica)

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3Use fossilenergy

efficiently



5Use fossil energy

efficiently

1

User demand & behaviour



4

Energy exchange and storage systems

Trias Energetica method

Five step method

nZEB approach (5-step)

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nZEB approach – User Central

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nZEB approach – Healing Environment

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[Picture: aarhus arkitekterne]

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nZEB approach – Energy Exchange & Storage

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nZEB approach – Energy Exchange & Storage

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Step Measures

1. User demand & Behaviour

Lower internal heat loads (more use of stand by mode), zoning, smart and individual control systems (human in the loop, SR ventilation), low flow fume hoods, low energy consuming MRI, Combiningprocesses/equipment/test set ups

2. Reduce Energy Demand

Insulation, envelope airtightness, heat recovery ventilation/hot tapwater, use daylight, thermal mass, demand control ventilation, LED lighting, Less heating and cooling (change standards), energy efficientappliances, less or no humidification

3. ApplySustainable & Energy Sources

Photovoltaic solar cells, biomass, wind energy, adiabatic cooling

4. Energy Exchange& Storage

Long term energy storage in the soil/acquifer (LTES), short term energy storage (buffers, Phase Change Materials), Concrete Core Activation(TABS), Exchange energy between internal/external functions

5. Efficient use offossil energy

High efficient boilers, chillers, heat pumps, cogeneration of heat andpower

nZEB approach (5-step) - Measures


SR ventilation

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Workplace Air Conditioning HUMAN IN THE LOOP

Human in the loop

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2012: The Netherlands wins Rehva Student Competition


Connect

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20% about products

80% about processes/organisation

Circular economy

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Stakeholders for building developmentStakeholder Interests

• Municipality Perform policyAchieve certain facility in area

• Project developer Amount of m2€/m2 and €/mw.Performances

• Investor Contract periodsLow risks

• Contractor(s) Good deal: efficient work for good return

• End User High qualityPleasant building

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Connections

Contract forms:

• Design (& Build) (DB) Product• Design, Build, Finance, Maintain (DBFM) Service

• ESCO: Energy Service Company

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Continuous improvements

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CASE

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Case VU-VUmc Hospital

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Case VU-VUmc Hospital - Policlinic

Extended life time 10 to 30 years

No reliable design and monitoring data

No thorough recommissioning

Energy costs reduction of € 300,000.– per year realized by professional optimization.

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VU-VUmc - District Development

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VU-VUmc - District Development

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• first in yellow, Cancer Center Amsterdam (CCA);

• second in red, Policlinic; • third in brown, Acta and O2 research

buildings VU‐VUmc;• fourth in orange, Westflank;• fifth in green, Hospital building and

related structures; • sixth in blue, central energy plan

andt;• seventh, Gebouw Zuid building for

VUmc offices.

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Area and buildings

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Step Measures


• Occupancy‐based smart controls ventilation, heating and cooling

• Occupancy‐based smart control lighting and equipment

2. ReduceEnergy Demand

• Upgrade HVAC system (CAV=>VAV)

• Upgrade building envelope

• Upgrade lighting systems



Material – Workshop part I & II

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Workshop Part I

• Split into teams of 5 persons

• Fill out matrix (part 1) and create an energy neutral building (15 min)

• One person gives a short feedback of the results (team process, design approach, top 5-10 solutions) to the other teams using matrix, etc. (1-2 min)

• Teams vote for best team results (=> Winner part 1)

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5Use fossil energy

efficiently

1

User demand & behaviour



4

Energy exchange and storage systems

Five step method

nZEB approach (5-step)

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nZEB approach – User Central

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Step Measures


2. Reduce Energy Demand

3. ApplySustainable & Energy Sources

4. Energy Exchange& Storage

5. Efficient use offossil energy

Results REHVA Workshop

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Workshop: Part 1

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Workshop Part II

• Split into teams of 5 persons

• Fill out matrix (part 2) and work on interests and connections of different stakeholders (15 min)

• One person gives a presentation of the results (team process, stakeholder management approach, top 5 solutions) to the other teams using matrices part 1 and 2, etc. (1-2 min)

• Teams vote for best team results (=> Winner part 2)

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Workshop: Part 2

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Advice to REHVA

How can Hospital Buildings achieve nZEB?

What are the most promising technical solutions?

What is necessary to implement these solutions in practice?

How can REHVA stimulate the above?

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Thank you for your contribution!

For more information contact:

Wim [email protected] +31 6 537 05 294

Healthcare: www.royalhaskoningdhv.com/healthcarenZEB: www.royalhaskoningdhv.com/nzeb

Documents

Workshop 3: RealizingnZEBHospitalBuildings · 19/05/2016 1 Workshop 3 - Realizing nZEB Hospital Buildings Together Wim Maassen ... University of Technology, Department Built ... 2012