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Hot Water Demand Formula:
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Hot water demand calculation for hotels estimates the daily hot water requirements based on the number of rooms, occupancy rate, and average hot water consumption per guest. This helps in proper sizing of water heating systems and ensuring adequate supply.
The calculator uses the formula:
Where:
Explanation: The formula calculates the total daily hot water demand by multiplying the number of rooms by the occupancy rate (to get the number of guests) and then by the average hot water consumption per guest.
Details: Accurate hot water demand calculation is crucial for proper sizing of water heaters, boilers, and storage tanks. It ensures adequate hot water supply for guests while optimizing energy consumption and system costs.
Tips: Enter the number of rooms (must be positive integer), occupancy rate as a decimal between 0 and 1, and average hot water consumption per guest in liters. All values must be valid for accurate calculation.
Q1: What is a typical hot water consumption per guest in hotels?
A: Typical consumption ranges from 50-150 L/guest/day, depending on hotel type and guest amenities.
Q2: How do I determine the occupancy rate?
A: Occupancy rate is calculated as the average percentage of rooms occupied (e.g., 0.75 = 75% occupancy).
Q3: Should I consider peak demand or average demand?
A: For system sizing, consider peak demand periods (typically mornings and evenings) which may be 1.5-2 times the average daily demand.
Q4: Are there seasonal variations to consider?
A: Yes, occupancy rates and hot water usage patterns may vary seasonally, especially in resort hotels.
Q5: What other factors affect hot water demand?
A: Additional factors include: type of hotel (luxury vs budget), presence of spas/pools, laundry facilities, and kitchen requirements.