cibse tm65: embodied carbon of building services equipment

Yara Machnouk

Environmental Designer

CIBSE TM65: Embodied carbon of building services equipment

ASBP Conference

10/06/2021

Louise Hamot

Global Lead of Life Cycle Research

ASBP Conference

Louise HamotGlobal Lead of Lifecycle Research, Elementa Consulting

Yara MachnoukEnvironmental Engineer, Elementa Consulting

Presenters

@elementa_uk

@deepgreeneng

Elementa Consulting – an overview22

Global Offices

700+ Global

Employees

350+ Global

Awards

10+ years

Integral Group

2UK Offices

76UK Employees

MultiUK Award Wins

30Years Trusted Experience

Agenda

Presentation – 40 min• Embodied carbon of building services: why it matters• Basic embodied carbon reduction measures for MEP• MEP Embodied carbon work => CIBSE TM65 context• CIBSE TM65 summary• CIBSE TM65 worked example• Next steps

CIBSE TM65

Embodied carbon & building services

equipment

Need to reduce carbon emissions

Embodied carbon is becoming more relevant

Potential breakdown between embodied and operational carbon for new buildings over time

Embodied carbon of MEP

?

Embodied carbon of MEP – big quantities

?2000 sqm 25 Tonnes

Embodied carbon of MEP – high impact materials

Embodied carbon of MEP – high replacement rates

Operational carbon

Ca

rbo

n e

mis

sio

ns

(kg

CO

2e

)

kgCO2e

Need of Whole life carbon approach

Ca

rbo

n e

mis

sio

ns

(kg

CO

2e

)

kgCO2e

Embodied carbon reduction in MEP

design - basics

LESS IS MORE

‘Design out’ MEPReduce overall weight of MEP equipment within a building

Specify equipment with lower weight

THINK CIRCULAR

Specify products and components that can be demounted and reused

products that can be disassembled, and materials recycledEnsure easy access for inspection, maintenance and replacement.

MITIGATE REFRIGERANT LEAKAGE

Specify low GWP refrigerantsReduce overall refrigerant charge

Ensure low leakage ratesEnsure refrigerant is 100% recovered

13.1kgCO2e/kg

3.8kgCO2e/kg

3.23kgCO2e/kg

2.97kgCO2e/kg

4.4kgCO2e/kg

1.86kgCO2e/kg

3.31kgCO2e/kg

Brass

4.8kgCO2e/kg

Zinc

4.18kgCO2e/kg

LOW EMBODIED CARBON MATERIALS

TM65 – MEP embodied carbon reductions

Go to Section 2

MEP & Embodied Carbon work

Our work

Time

CIBSE T. Symposium

2019 2020 2021

Our work

Time

Office WLC case study

CIBSE T. Symposium

2019 2020 2021 NOW

Our work

Time

Office WLC case study

LETI Embodied carbon PrimerCIBSE T. Symposium

2019 2020 2021

Our work

Time

Office WLC case study

LETI Embodied carbon Primer

Refrigerant Best Practice Guide

CIBSE T. Symposium

2019 2020 NOW

Our work

Time

Office WLC case study

LETI Embodied carbon Primer

Refrigerant Best Practice Guide

CIBSE T. Symposium

2019 2020 2021

CANBIM Award

NOW

Our work

CIBSE TM65

Time

Office WLC case study

LETI Embodied carbon Primer

Refrigerant Best Practice Guide

CIBSE T. Symposium

2019 2020 2021

CANBIM Award

NOW

Environmental Product Declarations

An EPD provides a standard way to disclose environmental impacts about a product throughout its lifecycle, using a consistent methodology

EPDs – where to find them

Go to Section 3 & Appendix A

Context - Need for consistency

CIBSE TM65

Context – knowledge gap

?kgCO2e?

CIBSE TM65 – Aim & scope

CIBSE TM65 - process summary

CIBSE TM65 - summary

CIBSE TM65 – differences with an EPD

CIBSE TM65 - process

Help CIBSE build a product database

CIBSE TM65 – Manufacturer form

CIBSE TM65 – Basic calculation method

CIBSE TM65 – Mid level calculation method

CIBSE TM65 – The assumptions

Go to page 17-20 of TM65 for more info

Go to page 46 of TM65 for more info

CIBSE TM65 – Reporting results

0 100 200 300 400 500 600 700 800 900 1,000

Basic

kg CO2e

A1: Material extraction

B3: Repair

Scale up factor

Buffer factor

CIBSE TM65 – example - Boiler

Go to chapter 5 page 23 to see the worked examples

0 100 200 300 400 500 600 700 800 900 1000

Mid Level

kg CO2e

A1: Material extraction

A2: Transport

A3: Manufacturing

A4: Transport to site

B3: Repair

C2: Transport

C3: Waste processing

C4: Disposal

Buffer factor

Go to chapter 5 page 23 to see the worked examples

Basic calculation method

Mid Level calculation method

TM65- The Appendix

TM65- The Appendix

TM65- The Appendix

CIBSE TM65worked example

CIBSE TM65 – Worked example

92%

Is it all the information we need?Which calculation method can we use?

CIBSE TM65 – Worked example

We can do the basic calculation method

CIBSE TM65 – Basic calculation method

CIBSE TM65 – Worked example

CIBSE TM65 – Worked example

Is Step 1 complete?

CIBSE TM65 – Worked example

We need to add the remaining 5%

CIBSE TM65 – Worked example

CIBSE TM65 – Worked example

Which complexity factor to use?

CIBSE TM65 – Worked example

CIBSE TM65 – Worked example

CIBSE TM65 – Worked example

CIBSE TM65 – Worked example

CIBSE TM65 – Advanced users

Go to section 6 page 30 of TM65 for more info

CIBSE TM65 next steps

CIBSE TM65 – Aims

CIBSE TM65 – Tool

How do all the document work togethers

Section A: Info for basic calc

Section B: Info for mid-level calc

Section C:Additional Information

Section D:Data disclosure

Calculator tool

Product information

Calculation results

Disclosure

Manufacture form

Reporting form

Calculator tool

CISBE TM 65

Consultant/ researcher using the tool

Step 1: Send the manufacturer the ‘manufacturer form’

Step 2: Receive the ‘manufacturer form’ from the manufacturer

Step 3: Use the ‘calculator tool’ to carry out the calculations

Step 4: Use the results in systems analysis

Step 5: Send the manufacturer form and the completed excel tool (which in effect becomes the reporting form) to CIBSE – to help develop knowledge on embodied and the development of an embodied carbon database.

Manufacturerform

Section A:

Section B:

Section C:

Section D:

Calculator tool

Manufacturer using the tool

Step 1: Use the ‘calculator tool’ to carry out the calculations (including filling out the disclosure section in the output tab)

Step 2: Print the inputs/ output tabs to PDF - send this to clients/ consultants/ contractors to show the embodied carbon of the product

To help CIBSE develop knowledge on embodied and the development of an embodied carbon database.

Step 3: complete the manufacturer form ( section C and D) and the completed excel tool (which in effect becomes the reporting form) to CIBSE

Manufacturerform

Section A:

Section B:

Section C:

Section D:

Calculator tool

CIBSE TM65 – Database

embodiedcarbon@cibse.org

CIBSE TM65 – Research Insight paper

RESEARCH INSIGHT PAPERON EMBODIED CARBON OF

HEATING DESIGN IN RESIDENTIAL SCHEMES (3 scales)

CIBSE TM65 – Training

IntroductionHow to use the CIBSE TM65 excel based tool

Worked examplesWhen to question data from manufacturersHow to find embodied carbon coefficients for materials not listed in TM65Range of expected results

CIBSE TM65 for Advanced usersFunctional units, how to categories products, generic data points, sharing data, embodied carbon at system level

Next steps for CIBSE TM 65Development of the method, how data submitted to CIBSE will be used, Opportunities for collaboration

Register your interest by emailing embodiedcarbon@cibse.org

Thank you

Questions?