# Detailed Building Life Cycle Energy Usage Model

## Class Name

• RDetailedBuildingLifeCycleEnergyUsageModel

## Location in Objects Pane

• Models > Model > Consequence > Environmental > Detailed Building Life Cycle Energy Usage

## Model Description

### Model Form

• This model produces the lifecycle energy usage in a building at a fine detail level.
• Extraction and manufacturing phase
• $${E_{EM}} = {E_P} + {E_t} = \sum {q{i_p} + \sum {q{i_t}d = \sum {q({i_p} + {i_t}d)} } }$$
• On-site construction phase
• $${E_{OC}} = {r_h}{t_{wh}}{i_{hm}} + (1 - {r_h}){i_m}{t_{wh}} + {1 \over {{t_s}}}{t_{wh}}{i_{wt}}{d_{wt}}{n_w}$$
• Operation phase
• $${E_O} = {t_{des}}{E_a}$$
• Maintenance phase
• \eqalign{ & {E_M} = \sum {\left( {{{{t_{des}}} \over {{t_{mat}}}} - 1} \right)} {i_{mat}},{t_{{\mathop{\rm mat}\nolimits} }} < {t_{des}} \cr & {E_M} = 0,{t_{mat}} \ge {t_{des}} \cr}
• End-of-life phase
• $${E_{EoL}} = {q_{total}}{i_{eol}}$$

• No

## Properties

### Object Name

• Name of the object in Rt
• Allowable characters are upper-case and lower-case letters, numbers, and underscore (“_”).
• The name is unique and case-sensitive.

### Display Output

• Determines whether the model is allowed to print messages to the Output Pane.

### Concrete Quantity

• $${q}$$ = Quantity of concrete including mortar and concrete 20MPa, whose units are converted to kg

### Concrete Intensity

• $${i_p}$$ = The intensity of concrete materials defined as a variable with lognormal distribution

### Concrete Transportation Distance

• $${d}$$ = The distance travelled by concrete, including backhaul, in km

### Concrete Transportation Intensity

• $${i_t}$$ = Transportation intensity of concrete materials defined as a variable with lognormal distribution

### Steel Quantity

• $${q}$$ = Quantity of steel including nails, welded wire mesh, wide flange section, rebar, rod, light sections, sheet metal, whose units are converted to kg

### Steel Intensity

• $${i_p}$$ = The intensity of steel materials defined as a variable with lognormal distribution

### Steel Transportation Distance

• $${d}$$ = The distance travelled by steel, including backhaul, in km

### Steel Transportation Intensity

• $${i_t}$$ = Transportation intensity of steel materials defined as a variable with lognormal distribution

### Wood Quantity

• $${q}$$ = Quantity of wood including small dimension lumber, softwood plywood, large dimension lumber , whose units are converted to kg

### Wood Intensity

• $${i_p}$$ = The intensity of wooden materials defined as a variable with lognormal distribution

### Wood Transportation Distance

• $${d}$$ = The distance travelled by wood, including backhaul, in km

### Wood Transportation Intensity

• $${i_t}$$ = Transportation intensity of wooden materials defined as a variable with lognormal distribution

### Gypsum Board Quantity

• $${q}$$ = Quantity of Gypsum board including Gypsum wall 0.5” and 0.625”, whose units are converted to kg

### Gypsum Board Intensity

• $${i_p}$$ = The intensity of Gypsum board defined as a variable with lognormal distribution

### Gypsum Board Transportation Distance

• $${d}$$ = The distance travelled by Gypsum board, including backhaul, in km

### Gypsum Board Transportation Intensity

• $${i_t}$$ = Transportation intensity of Gypsum board defined as a variable with lognormal distribution

### Vapour Barrier Quantity

• $${q}$$ = Quantity of vapor barrier including 6 mil polyethylene, EPDM membrane, whose units are converted to kg

### Vapour Barrier Intensity

• $${i_p}$$ = The intensity of vapor barrier defined as a variable with lognormal distribution

### Vapour Barrier Transportation Distance

• $${d}$$ = The distance travelled by vapor barrier, including backhaul, in km

### Vapour Barrier Transportation Intensity

• $${i_t}$$ = Transportation intensity of vapor barrier defined as a variable with lognormal distribution

### Insulation Quantity

• $${q}$$ = Quantity of insulation including batt fibreglass, brick, vinyl siding glazing, whose units are converted to kg

### Insulation Intensity

• $${i_p}$$ = The intensity of insulation materials defined as a variable with lognormal distribution

### Insulation Transportation Distance

• $${d}$$ = The distance travelled by insulation, including backhaul, in km

### Insulation Transportation Intensity

• $${i_t}$$ = Transportation intensity of insulation materials defined as a variable with lognormal distribution

### Glass Quantity

• $${q}$$ = Quantity of glass including glazing panel, low E Tin Argon filled glazing, whose units are converted to kg

### Glass Intensity

• $${i_p}$$ = The intensity of glass materials defined as a variable with lognormal distribution

### Glass Transportation Distance

• $${d}$$ = The distance travelled by glass, including backhaul, in km

### Glass Transportation Intensity

• $${i_t}$$ = Transportation intensity of glass materials defined as a variable with lognormal distribution

### Other Material Quantity

• $${q}$$ = Quantity of the other material including aluminum, whose units are converted to kg

### Other Material Intensity

• $${i_p}$$ = The intensity of the other material defined as a variable with lognormal distribution

### Other Material Transportation Distance

• $${d}$$ = The distance travelled by the other material, including backhaul, in km

### OtherMaterial Transportation Intensity

• $${i_t}$$ = Transportation intensity of other materials defined as a variable with lognormal distribution

### Ratio Worker Hours

• $${r_h}$$ = The ratio of worker-hours allocated to the use of heavy machinery such as cranes, bulldozers and backhoes, defined as a random variable

### Total Worker Hours

• $${t_{wh}}$$ = The total worker-hours allocated to construction and site work, defined as a random variable

### Worker Shift Length

• $${t_s}$$ = The worker shift, typically 8 hours

### Distance Worker Travel

• $${d_{wt}}$$ = The distance travelled by workers including return trips, in km

### Heavy Machine Intensity

• $${i_{hm}}$$ = The energy intensity due to heavy machinery use, in J/worker-hour

### Manual Labor Intensity

• $${i_m}$$ = The energy intensity due to manual labour, in J/worker-hour

### Mean Number Workers

• $${n_w}$$ = The mean number of workers during construction, defined as a random variable

### Worker Transportation Intensity

• $${i_{wt}}$$ = The worker transportation energy intensity, in J/passenger/km

### DesignLife

• $${t_{des}}$$ = The design life of the building in years

### Annual Energy

• $${E_a}$$ = The annual energy demand defined as a variable with lognormal distribution

### Material 1 Life

• $${t_{mat}}$$ = The expected life for material 1, in years

### Material 1 Replacement Intensity

• $${i_{mat}}$$ = The replacement intensity for material 1, defined as a random variable

### Material 2 Life

• $${t_{mat}}$$ = The expected life for material 2, in years

### Material 2 Replacement Intensity

• $${i_{mat}}$$ = The replacement intensity for material 2, defined as a random variable

### EOL Intensity

• $${i_{eol}}$$ = The energy intensity associated with the end of life phase of a building, in J

## Output

• $${E}$$ = The lifecycle energy usage in a building in J
• The output is an automatically generated generic response object, which takes the object name of the model plus “Response”.