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Commercial_Public_Apartment_Hot_Water.md

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Commercial Public Apartment Hot Water - [source code]

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

  • epwFile [Required]

Input .epw file path by using grasshopper's "File Path" component.

  • buildingType [Required]

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

  • numberOfUnits [Required]

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
  • litersPerUnitPerDay [Optional]

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.

  • occupancyStartingHour [Optional]

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.

  • occupancyDuration [Optional]

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.

  • firstWeekStartDay [Optional]

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).

  • weekendDays [Optional]

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.

  • holidayDays [Optional]

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.

  • deliveryWaterTemperature [Optional]

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.

  • coldWaterTemperaturePerHour [Optional]

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.

  • runIt [Required]

...

Outputs

  • readMe!

...

  • heatingLoadPerHour

Thermal energy (or electrical energy) required to heat the domestic hot water consumption for each hour during a year.

In kWh.

  • hotWaterPerHour

Domestic hot water consumption for each hour during a year.

In L/h (Liters/hour).

  • hotWaterPerYear

Domestic hot water consumption for a whole year.

In L (Liters).

  • averageDailyHotWaterPerYear

Average daily hot water consumption for a whole year.

In L/day (Liters/day).

  • maximumDailyConsumption

Maximal hot water consumption per day during a year.

In (L/day) Liters/day.

  • maximumConsumptionDay

Day with maximal hot water consumption.

  • minimumDailyConsumption

Minimal hot water consumption per day during a year.

In (L/day) Liters/day.

  • minimumConsumptionDay

Day with minimal hot water consumption.

[Check Hydra Example Files for Commercial Public Apartment Hot Water](https://hydrashare.github.io/hydra/index.html?keywords=Ladybug_Commercial Public Apartment Hot Water)