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Commercial Public Apartment Hot Water
Use this component to calculate domestic hot water consumption for each hour during a year, for Commercial, Public and Apartment buildings.
The following types of buildings are supported:
- office
- apartment house or multifamily building
- hotel/motel
- restaurants, cafeterias
- drive-ins, grilles, luncheonettes, sandwich, snack shops
- primary school
- junior and senior high school
- men's dormitory
- women's dormitory
- hospital
- nursing home
- factory
Component based on paper: ASHRAE 2003 Applications Handbook (SI), Chapter 49, Service water heating:
https://cours.etsmtl.ca/mec735/Documents/Notes_de_cours/2012/Hiver_2012/Service_Water_heating_ASHRAE.pdf
Inputs
| Name | ID | Description | Type |
|---|---|---|---|
| Epw File | _epwFile | Input .epw file path by using grasshopper's "File Path" component. | Goo |
| Building Type | _buildingType | Choose the building type for which hot water consumption will be calculated: - 0 - office 1 - apartment house, with 20 or less apartments 2 - apartment house, from 21 to 49 apartments 3 - apartment house, from 50 to 74 apartments 4 - apartment house, from 75 to 99 apartments 5 - apartment house, from 100 to 199 apartments 6 - apartment house, more than 200 apartments 7 - hotel/motel with 20 or less rooms 8 - hotel/motel from 21 to 60 rooms 9 - hotel/motel from 61 to 99 rooms 10 - hotel/motel more than 100 rooms 11 - (full meal) restaurants, cafeterias 12 - drive-ins, grilles, luncheonettes, sandwich, snack shops 13 - primary school 14 - junior and senior high school 15 - men's dormitory 16 - women's dormitory 17 - hospital 18 - nursing home 19 - factory | Goo |
| Number Of Units | _numberOfUnits | Number of units for upper chosen "_buildingType". Represents the number of: - - apartment units: apartment houses - rooms: hotel/motel - occupants: offices, elementary, junior, senior high schools, dormitories , hospitals, factories - meals per day: (full meal) restaurants, cafeterias; drive-ins, grilles, luncheonettes, sandwich, snack shops - beds: nursing homes | Goo |
| Liters Per Unit Per Day | litersPerUnitPerDay_ | Number of liters for a single unit and day, based on _buidlingType - office - 3.8 l/day/occupant apartment house, with 20 or less apartments - 170 l/day/apartment apartment house, from 21 to 49 apartments - 159.2 l/day/apartment apartment house, from 50 to 74 apartments - 151.6 l/day/apartment apartment house, from 75 to 99 apartments - 144 l/day/apartment apartment house, from 100 to 199 apartments - 140.2 l/day/apartment apartment house, more than 200 apartments - 132.7 l/day/apartment hotel/motel with 20 or less rooms - 98 l/day/room hotel/motel from 21 to 59 rooms - 75.8 l/day/room hotel/motel from 60 to 99 rooms - 53.1 l/day/room hotel/motel more than 100 rooms - 37.9 l/day/room (full meal) restaurants, cafeterias - 9.1 l/day/meal drive-in, grille, luncheonette, sandwich, snack shop - 2.6 l/day/meal primary school - 2.3 l/day/pupil junior and senior high school - 6.8 l/day/pupil men's dormitory - 49.7 l/day/student women's dormitory - 46.6 l/day/student hospital - 160 l/day/patient nursing home - 69.7 l/day/bed factory - 45 l/day/worker - If not supplied, it will be picked based on chosen "_buildingType" and "_numberOfUnits" inputs. | Goo |
| Occupancy Starting Hour | occupancyStartingHour_ | An hour (from 1 to 24) during a day at which the occupancy of the chosen _buildingType starts: - office - 9 apartment house 7 hotel/motel 7 (full meal) restaurant, cafeteria - 7 drive-in, grill, luncheonette, sandwich, snack shop - 7 primary school - 9 junior and senior high school - 9 men's dormitory - 8 women's dormitory - 8 hospital - 1 nursing home - 1 factory - 1 - If not supplied, it will be picked based on chosen "_buildingType" input. | Goo |
| Occupancy Duration | occupancyDuration_ | Total number of hours in a single day during which the chosen _buildingType will be used. It can not be less than 1 nor larger than 24. Also it can not exceed the 24 when summed with occupancyStartingHour_. - office - 9 apartment house - 15 hotel/motel - 8 (full meal) restaurant, cafeteria - 12 drive-in, grill, luncheonette, sandwich, snack shop - 17 primary school - 7 junior and senior high school - 7 men's dormitory - 15 women's dormitory - 15 hospital - 24 nursing home - 24 factory - 24 - If not supplied, it will be picked based on chosen "_buildingType" input. | Goo |
| _________________________ | Script variable HotWater | Goo | |
| First Week Start Day | firstWeekStartDay_ | Week day on which a year starts (1 - Monday, 2 - Tuesday, 3 - Wednesday...) - If not supplied, default value: 1 will be used (year starts on Monday, 1st January). | Goo |
| Weekend Days | weekendDays_ | Define a list of two weekend (nonworking) days. Through out the World, countries have different days as their weekend days: - Thursday and Friday (4,5) Friday and Saturday (5,6) Saturday and Sunday (6,7) - If not supplied, Saturday and Sunday (6,7) will be taken as a default weekend days. | Goo |
| Holiday Days | holidayDays_ | List of days (1 to 365) which are holiday (nonworking) days. - If not supplied, no holiday days will be used, with exception of "school" (_buildingType: 13 and 14) where summer, winter and spring/autumn holidays will be applied. For northern hemisphere, USA school holidays schedules have been taken as a default. For southern hemisphere, Australian school holidays schedule have been taken as a default. | Goo |
| Delivery Water Temperature | deliveryWaterTemperature_ | Required water temperature. In Celsius It is recommended for delivery water temperature to not be lower than 60°C (140°F) to avoid the risk of Legionella pneumophila bacteria appearance. - If not supplied, default value: 60°C (140°F) will be used. - In Celsius degrees. | Goo |
| Cold Water Temperature Per Hour | coldWaterTemperaturePerHour_ | Cold (inlet) water temperature supplied from public water system, for each hour during a year. In Celsius. To calculate it, use the "coldWaterTemperaturePerHour" output of the Ladybug "Cold Water Temperature" component. - If not supplied, it will be calculated based on Christensen and Burch method (method 1 from "Cold Water Temperature" component), with pipes depth from 0.3 to 1 meters, and unknown soil type. - In Celsius degrees. | Goo |
| _________________________ | Script input ______________________. | Goo | |
| Run It | _runIt | ... | Goo |
Outputs
| Name | ID | Description | Type |
|---|---|---|---|
| Out | readMe! | ... | String |
| ________________________ | Script variable ResidentialHotWaterConsumption | Goo | |
| Heating Load Per Hour | heatingLoadPerHour | Thermal energy (or electrical energy) required to heat the domestic hot water consumption for each hour during a year. - In kWh. | Goo |
| Hot Water Per Hour | hotWaterPerHour | Domestic hot water consumption for each hour during a year. - In L/h (Liters/hour). | Goo |
| Hot Water Per Year | hotWaterPerYear | Domestic hot water consumption for a whole year. - In L (Liters). | Goo |
| Average Daily Hot Water Per Year | averageDailyHotWaterPerYear | Average daily hot water consumption for a whole year. - In L/day (Liters/day). | Goo |
| Maximum Daily Consumption | maximumDailyConsumption | Maximal hot water consumption per day during a year. - In (L/day) Liters/day. | Goo |
| Maximum Consumption Day | maximumConsumptionDay | Day with maximal hot water consumption. | Goo |
| Minimum Daily Consumption | minimumDailyConsumption | Minimal hot water consumption per day during a year. - In (L/day) Liters/day. | Goo |
| Minimum Consumption Day | minimumConsumptionDay | Day with minimal hot water consumption. | Goo |
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