wayne howatt
DESCRIPTION
Wayne Howatt. Director, Dearle & Henderson. The Climate Challenge. 01. Welcome. for Scottish FHE Institutions. Nature of Business Established Size Coverage Major Disciplines. Property & Construction Consultants 1908 300+ Staff UK Wide and Oversees Design Building Surveying - PowerPoint PPT PresentationTRANSCRIPT
Wayne Howatt
01. Welcome The Climate Challenge
Director, Dearle & Henderson
for Scottish FHE Institutions
Nature of Business
Established
Size
Coverage
Major Disciplines
02. Introduction
Property & Construction Consultants
1908
300+ Staff
UK Wide and Oversees
Design
Building Surveying
Compliance
Quantity Surveying
Project Management
Energy & Sustainability
Our Company
03. Heriot Watt University Survey The Project Background
Our Commission,
Estate Condition and Compliance Survey
• Condition of Fabric & Infrastructure
• DDA Audit
• Asbestos Data
• Fire Data
• Energy Performance of Buildings in Relation to EU EPBD
03. Heriot Watt University Survey The Project Background
Riccarton Campus Statistics
• Approximately 100 Hectare Site
• 100 Buildings
• 170,000 Sq.M. of Floor Area
• 9000 Individual Room Spaces
• Property Age Range in Excess of 200 Years
• Very Wide Range of Building Use
Stage 1
Construction Data
Site Survey Data
03. Heriot Watt University Survey
Data Capture
From Drawings And Specification
Built Form
Use
Plant And Equipment
Real World Information – Up To Date
Fabric, Condition And Use
The Carbon Emission Rating Process
Stage 2
Build 3d Geometry
03. Heriot Watt University Survey
Start Computer Model
From Acquired Data
Floors
Walls
Openings
Roofs
Stairs & Lifts
The Carbon Emission Rating Process
Stage 3
Maintenance
Attach To All Individual
Spaces & Components
Environmental Data
03. Heriot Watt University Survey
Attach Attributes To Geometry
Update And Check System Static Data
Set Appropriate Settings, Conditions, Values And Rules
Building Data
Activity Data
Lighting Data
Heating Data
Location And Weather Model
The Carbon Emission Rating Process
Stage 4
Run Actual
Run Notional
Results
03. Heriot Watt University Survey
Simulations
On Building As Built
With Actual ‘U’ Values
Based On Building As If Compliant With Current Regs.
(Part L 2006)
Kg Carbon Dioxide per Sq.M.
The Carbon Emission Rating Process
Stage 5
Compare Outputs
Produce Certification
Log Book
03. Heriot Watt University Survey
Outputs
Determine Relative Emissions
Actual Carbon Emission
Notional Carbon Emission
Relative Emission Performance (%)
Index Rating Against Scale (EPBD/Relative)
All Background Material And Ancillary Data
The Carbon Emission Rating Process
Actual
NotionalX 100 (%)
Stage 6
Changes To Properties
Future Proposals
03. Heriot Watt University Survey
Maintain Model
Update To Reflect Any Changes
To Relevant Features Or Attributes
Future Compliance Issue
Develop Use Of Model As A Tool
Assess Value/Benefit Of Proposals
A Basis For ROI Calculations
The Carbon Emission Rating Process
• Cost
• Sustainability
• Flexibility
• Future proof
• Maintenance
• Running Costs
• Security
Functional
ValueSustainable
3 Possible Routes
04. Design Solutions Environmental Engineering Requirements
04. Design Solutions Environmental Engineering Requirements
Natural / Passive
Openable Windows
Natural Ventilation
Stack Driven Ventilation
Solar Shading
Ultra Low U Values
Renewable Energy Sources
Commercial Standard
Non-Openable Windows
Mechanical Ventilation
Refrigerant Cooling
Lightweight Building
Standard U Values
Fan Coils
VRV etc.
Low Energy Engineered
Choice of Open/Non-Openable Windows
Mechanical Ventilation
Renewable Energy Techniques
Peak Summer Temp. Control
Innovative Cooling Techniques
04. Design Solutions Conceptual Development
Consider
parkland / urbanvisibility - viewsgeneral arrangementPublic / private– security
sustainabilityfuture flexibilityinternal movementnatural daylightmaterials
custody suite organisationoperations / fsu relationships
Fundamental Systems Integration
Main office accommodation on north face, which is shaded and cool Sealed façade to reduce noise
from adjacent highway
NOISE
Solar panels following the sun path could provide a percentage of renewable energy
Potential for green roof to reduce heat gains and improve thermal insulation
Ground source heat pump could provide a considerable percentage of free energy
04. Design Solutions