A Study of High Efficiency Housing Technologies and Energy...
Transcript of A Study of High Efficiency Housing Technologies and Energy...
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THE HEETE PROJECTTHE HEETE PROJECT
A Study of High Efficiency Housing Technologies and Energy A Study of High Efficiency Housing Technologies and Energy
CalculationCalculation
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THE HEETE MODEL
-H Home
-E Energy
-E Efficient
-H Home
-E Energy
-E Efficient-E Efficient
-T Technology
-E Evaluator
-E Efficient
-T Technology
-E Evaluator
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PRESENTATION OUTLINE
�Project Introduction
�Project Definition
�Development
�Model Validation�Model Validation
�Results
�Project Review
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PROJECT INTRODUCTION
� EnvironmentEnvironmentEnvironmentEnvironment� Greater than 90% of all households in Canada use Non-renewable energy sources for heating.
� EconomicsEconomicsEconomicsEconomics� 65% of all dwellings in Canada are single detached houses.65% of all dwellings in Canada are single detached houses.
� EducationEducationEducationEducation� This model uses much of the theory examined throughout engineering.
� This model allows for creative and critical thought in many areas.
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PROJECT DEFINITION
� Initial Objective:Initial Objective:Initial Objective:Initial Objective:
� Create and confirm an energy usage model for standard
dwellings in the St. John’s NL region.
� Overall Objectives:Overall Objectives:Overall Objectives:Overall Objectives:Use the model to view the economic impact of various � Use the model to view the economic impact of various changes in home layout/equipment.
� Expand and simplify the inputs of the model for use by average individuals in an attempt to better inform the public of their options in energy use reduction.
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INITIAL DEVELOPMENT
� Primary Model InclusionsPrimary Model InclusionsPrimary Model InclusionsPrimary Model Inclusions� Weather
� Construction
� Heat Losses
� Renewable
Human Activity
EnvironmentEnvironmentEnvironmentEnvironmentEnvironmentEnvironmentEnvironmentEnvironment
� Human Activity
� HVAC
� Costing
ContentsContentsContentsContentsContentsContentsContentsContents
ConstructionConstructionConstructionConstructionConstructionConstructionConstructionConstruction
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INITIAL DEVELOPMENT
� Processing requirementsProcessing requirementsProcessing requirementsProcessing requirements� User Input
� Archive Data
� Control
� Post Processing
Output� Output
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DESIGN APPROACH
� Modular Modular Modular Modular ---- Parallel DesignParallel DesignParallel DesignParallel Design
1. Problem broken into “Modules”
2. Data flow decided.
3. Input and Output constraints set.3. Input and Output constraints set.
4. Independent module construction.
5. Module combination and integration.
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Calculation
CALCULATION DATA FLOW
Renewables
Module
Weather
Module
HAM
UI
Module
Control
MACRO CONTROL DIAGRAM
Calculation
Modules
HVAC
Module
Energy
Module
HAM
EHLM
Post
Process
Control
Module
Logging Output
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USER INTERFACE (UI)
� ChallengesChallengesChallengesChallenges� Human
� User knowledge
� Required Input
� Appropriate Output
� Technical� Technical� Data Transfer
� SolutionsSolutionsSolutionsSolutions� Simplified Inputs
� Human testing throughout
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WEATHER
� ChallengesChallengesChallengesChallenges� Accurate Weather Modelling
� Accurate Solar Modelling
� SolutionsSolutionsSolutionsSolutions� Incorporation of Linear Interpolation� Incorporation of Linear Interpolation
� US Naval Observatory –� Solar Radiation Model
� Sunrise/Sunset Model
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HUMAN ACTIVITIES MODULE (HAM)
� ChallengesChallengesChallengesChallenges� Simulate the Amount of Energy Used on a Daily Basis
� Capture Energy Used From Major Appliances
� Capture Seasonal Variances
� SolutionsSolutionsSolutionsSolutions� SolutionsSolutionsSolutionsSolutions� Determine Daily Averages
� Vary Daily Averages Periodically
� Capture Annual Appliance Consumption
� Vary Lighting Load Based on Sun Condition from Weather Module
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ENVIRONMENTAL HEAT LOSS (EHLM)
� ChallengesChallengesChallengesChallenges� Areas of investigation
� Formation of heat transfer model
� SolutionsSolutionsSolutionsSolutions� Numerical solutions to complex convection/radiation heat transfer problems
� Numerical solutions to complex convection/radiation heat transfer problems
� Evaluation of preliminary solutions and according simplifications
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CONTROL
� ChallengesChallengesChallengesChallenges� Create a robust solution for managing and recording data
� Provide a mechanism for data management
� SolutionsSolutionsSolutionsSolutions� Leverage the VBA API in Excel to maximize capabilities and functionality
� Leverage the VBA API in Excel to maximize capabilities and functionality
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MODEL VALIDATION
� Areas of validationAreas of validationAreas of validationAreas of validation� Energy usage
� Methods of validationMethods of validationMethods of validationMethods of validation� Local trial cases
� National studies� National studies
� Existing models
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Model Data
Supplied Data
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MODEL (INPUT)
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MODEL (INPUT)
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SUMMARY OF RESULTS
$100.00
$150.00
$200.00
$250.00
$300.00
$350.00
$400.00
Montly Energy CostMontly Energy CostMontly Energy CostMontly Energy Cost
$-
$50.00
$100.00
0.00
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60.00
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100.00
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140.00
Average Daily Usage (kWh)Average Daily Usage (kWh)Average Daily Usage (kWh)Average Daily Usage (kWh)
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PROJECT REVIEW� Process ReviewProcess ReviewProcess ReviewProcess Review
� Content ReviewContent ReviewContent ReviewContent Review
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PROCESS REVIEW
� Modular Modular Modular Modular –––– Parallel strategyParallel strategyParallel strategyParallel strategy� Quite effective for this project.
� Clear Definition important.
� Team Communication.
� Piecewise Testing
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CONTENT REVIEW
� HEETE ProjectHEETE ProjectHEETE ProjectHEETE Project� Wider range of functionality
� Further de-bugging
� ModulesModulesModulesModules� User Interface� User Interface
� Increased simplicity and robustness required
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QUESTIONS
??
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