# Detailed Building Life Cycle Water Usage Model

## Class Name

• RDetailedBuildingLifeCycleWaterUsageModel

## Location in Objects Pane

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

## Model Description

### Model Form

• This model produces the lifecycle water usage in a building at a fine level of detail.
• Extraction and manufacturing phase
• $${W_{EM}} = {W_P} + {W_t} = \sum {q{i_{wp}} + \sum {q{i_{wt}}d = \sum {q({i_{wp}} + {i_{wt}}d)} } }$$
• On-site construction phase
• $${W_{oc}} = {t_{wh}}{w_{ioc}}$$
• Operation phase
• $${W_{op}}= {t_d}{d_{yo}}{o_e}({i_{fl}}+{i_{mf}}{r_{mf}}+{i_{ff}}(1-{r_{mf}}))$$

• 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 W Intensity

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

### Concrete Transportation Distance

• $${d}$$ = The distance travelled by concrete, including backhaul, defined as a random variable, in km

### Concrete Transportation W Intensity

• $${i_{wt}}$$ = Transportation water 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 W Intensity

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

### Steel Transportation Distance

• $${d}$$ = The distance travelled by steel, including backhaul, defined as a random variable, in km

### Steel Transportation W Intensity

• $${i_{wt}}$$ = Transportation water 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 W Intensity

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

### Wood Transportation Distance

• $${d}$$ = The distance travelled by wood, including backhaul, defined as a random variable, in km

### Wood Transportation W Intensity

• $${i_{wt}}$$ = Transportation water 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 W Intensity

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

### Gypsum Board Transportation Distance

• $${d}$$ = The distance travelled by Gypsum board, including backhaul, defined as a random variable, in km

### Gypsum Board Transportation W Intensity

• $${i_{wt}}$$ = Transportation water 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 W Intensity

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

### Vapour Barrier Transportation Distance

• $${d}$$ = The distance travelled by vapor barrier, including backhaul, defined as a random variable, in km

### Vapour Barrier Transportation W Intensity

• $${i_{wt}}$$ = Transportation water 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 W Intensity

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

### Insulation Transportation Distance

• $${d}$$ = The distance travelled by insulation, including backhaul, defined as a random variable, in km

### Insulation Transportation W Intensity

• $${i_{wt}}$$ = Transportation water 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 W Intensity

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

### Glass Transportation Distance

• $${d}$$ = The distance travelled by glass, including backhaul, defined as a random variable, in km

### Glass Transportation W Intensity

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

### Other Material Quantity

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

### Other Material W Intensity

• $${i_{wp}}$$ = The water intensity of other materials defined as a variable with lognormal distribution

### Other Material Transportation Distance

• $${d}$$ = The distance travelled by the other materials, including backhaul, defined as a random variable, in km

### OtherMaterial Transportation W Intensity

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

### Worker Hour W Intensity

• $${w_{ioc}}$$ = The water intensity in L of water/worker hour

### Total Worker Hours

• $${t_{wh}}$$ = The total worker-hours required to complete construction activities

### Days Yearly Operation

• $${d_{yo}}$$ = The days of yearly operation of the building. for example, if the building is operated only 200 out of 365 days in a given year, dyo is equal to 200 days per year

### Total Building Occupants

• $${o_e}$$ = The total number of building occupants

### Flow Fixture 1 W Demand

• $${i_{fl}}$$ = The water demand for each flow fixture in L/occupant/day

### Flush Male W Demand

• $${i_{mf}}$$ = The daily water demand for male occupants for each flush fixture in L/male/day

### Flush Female W Demand

• $${i_{ff}}$$ = The daily water demand for female occupants for each flush fixture in L/female/day

### Ratio Male Occupants

• $${r_{mf}}$$ = The ratio of male occupants to total building occupants: normally 0.5 males to total building occupants

### Design Life

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

## Output

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

### Remove

• Removes the object.