PLAMBING 1

Summary

This video discusses plumbing design for high-rise buildings, focusing on water supply, wastewater management, and stormwater drainage systems. The content explains essential calculations such as daily water usage, hot water, fire-fighting water (sprinklers and hydrants), and cooling water. It also covers the planning of solid waste, septic tanks, and treatment plants, alongside techniques for calculating stormwater drainage. Using a real-world example of a four-star hotel in Jakarta, the video demonstrates how to calculate the required water tank capacity, septic tank dimensions, and drainage pipe volume, offering valuable insights into the complex design process for large-scale buildings.

Takeaways

• 😀 The video discusses the calculation of plumbing needs for high-rise buildings, focusing on clean water supply, waste management, and rainwater drainage.
• 😀 The importance of determining the water storage tank volume for high-rise buildings is emphasized, including the need for water for daily use, cooling, and fire safety.
• 😀 Clean water usage is divided into categories such as daily water, cold and hot water, fire sprinkler systems, and hydrant systems. Each category has specific water volume requirements.
• 😀 For fire safety, it is crucial to calculate the volume of water needed for sprinklers and hydrants. Sprinklers require 18 liters per minute, and hydrants require 400 liters per minute, multiplied by the number of sprinklers or hydrants in the building.
• 😀 Water for cooling systems in buildings is also calculated, which is around 2% of the water flow used in the building. The cooling load depends on the building's design and occupancy.
• 😀 Waste management is a significant factor in building planning, where solid waste calculations are based on the number of occupants. This is detailed in specific tables for wastewater treatment plants.
• 😀 The script explains the importance of rainwater drainage calculations, where factors such as roof area, drainage coefficient, and the size of drains are considered.
• 😀 For calculating the required water storage capacity for a building, the script uses a case study of a 4-star hotel in Jakarta with 25 floors and 800 m² floor area per level.
• 😀 Water requirements are calculated based on daily water use, fire safety water volume, and cooling water volume. Values are derived from established tables and calculations.
• 😀 The process includes the use of various formulas, such as those for fire sprinkler systems, water storage volume, and the specific cooling requirements, to ensure the building's plumbing system meets the needs of its users.

Q & A

What are the three main aspects to focus on when designing plumbing systems for a high-rise building?

The three main aspects to focus on are clean water requirements, waste management, and rainwater drainage. These factors are essential for determining the appropriate volume for water tanks and overall plumbing design in high-rise buildings.

How is the clean water requirement calculated for a building?

The clean water requirement is calculated by considering daily water usage, hot water needs, and cold water needs. The volume required for firefighting systems (sprinklers and hydrants) is also factored in. These can be derived from specific tables and formulas that provide water consumption rates per unit.

What is the formula to calculate the water volume needed for sprinklers and hydrants?

For sprinklers, the water requirement is 18 liters per minute, and for hydrants, it is 400 liters per minute. The total volume is determined by multiplying the number of sprinklers and hydrants by their respective water consumption rates, considering the time of operation (30 minutes).

How does fire safety affect the plumbing system design?

Fire safety systems, including sprinklers and hydrants, require a large volume of water. The system must be designed to ensure there is enough water storage for these systems, especially in the event of a fire. The total water requirement for firefighting is typically calculated using the number of sprinklers and hydrants and the volume of water each consumes per minute.

What role does waste management play in plumbing design for a high-rise building?

Waste management is a critical part of plumbing design. The system must account for solid waste, wastewater, and treatment processes. Wastewater treatment plant capacity is calculated based on the number of occupants and the expected waste volume, often using specific design guidelines and tables.

How is the rainwater drainage system calculated in the plumbing design?

Rainwater drainage is calculated using the roof area and a runoff coefficient, which takes into account the permeability of the surface. The drainage system's capacity is designed to handle the volume of rainwater that can accumulate on the roof during a rainfall.

Can you explain the process for calculating the required water tank capacity for a hotel?

To calculate the water tank capacity for a hotel, you need to estimate the clean water requirement based on the number of rooms and daily water usage per room. You then add water for firefighting systems (sprinklers and hydrants) and any additional systems like cooling units. The total water consumption is used to determine the required tank size.

What is the importance of using tables and specific formulas for plumbing design?

Tables and formulas provide standardized methods for calculating water needs, fire safety volumes, waste management, and drainage systems. These references ensure that the design meets both safety and efficiency standards, as they are based on extensive research and industry norms.

How does the number of floors in a building affect the plumbing system design?

The number of floors affects the plumbing design as it determines the total area that needs to be serviced, which impacts water demand and waste disposal requirements. For instance, more floors mean more rooms and higher water consumption. Additionally, firefighting systems will require larger capacities as the number of floors increases.

What is the purpose of calculating the volume of circulating water in a building's plumbing system?

Calculating the volume of circulating water is essential for determining the efficiency and capacity of water supply systems in the building. This includes considering the air conditioning systems, hot water supply, and other circulation needs. It helps in designing a system that can handle the necessary water flow without overloading the infrastructure.