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1st Sem Hotel Engg. Notes

Hot Water Supply System in Hotels

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Last updated: 4 July 2023

A hot water supply system is an essential component of any hospitality establishment, providing guests with hot water for a variety of purposes, including bathing, cooking, and cleaning. In this blog, we’ll explore the key components of a hot water supply system in a hotel, including the storage tank, distribution system, and water heating equipment.

Storage Tank

A storage tank is a key component of a hot water supply system, providing a reserve of hot water that can be used as needed. The tank is typically made of a durable material like steel or fiberglass and is insulated to prevent heat loss. The tank is filled with hot water from a water heating equipment and can be heated using electricity, gas, or solar power.

Distribution System

The distribution system is responsible for transporting hot water from the storage tank to the various fixtures and appliances in the hotel, including sinks, showers, and washing machines. The distribution system is made up of pipes, valves, and pumps that work together to maintain a steady flow of hot water throughout the building. It is important to ensure that the distribution system is properly sized and insulated to prevent heat loss and maintain efficiency.

Water Heating Equipment

Hot water supply systems in hospitality establishments can be categorized into different types depending on the heating method used. The three main types of hot water heating systems are the direct heating system, indirect heating system, and solar water heating system. In this blog, we’ll explore each of these heating systems and their key components.

Direct Heating System

A direct heating system is a type of hot water heating system where the water is heated directly by the heat source. The heat source is typically a boiler that burns gas or oil, or an electric heating element. The hot water is then transported directly to the various fixtures and appliances in the hotel. The direct heating system is relatively simple and easy to install, making it a popular choice for many hospitality establishments.

Indirect Heating System

An indirect heating system is a type of hot water heating system where the water is heated indirectly using a heat exchanger. The heat exchanger is typically located inside a storage tank, and the water is heated by circulating it around the heat exchanger. The heat source is typically a boiler that burns gas or oil. The indirect heating system is more complex and expensive than the direct heating system, but it provides a more efficient and reliable source of hot water.

Solar Water Heating System

A solar water heating system is a type of hot water heating system that uses the energy from the sun to heat the water. The system typically includes a solar collector that is installed on the roof of the hotel, a storage tank, and a backup heating system (such as a gas or electric boiler) for times when there is insufficient sunlight. The solar water heating system is a sustainable and environmentally friendly option, but it requires a significant investment and may not be suitable for all hospitality establishments.

Choosing the Right Hot Water Heating System

The choice of hot water heating system will depend on a variety of factors, including energy efficiency, cost, and local regulations. Hospitality professionals should carefully evaluate the advantages and disadvantages of each type of system and choose the one that best meets their specific needs.

Maintenance and Upkeep

Regular maintenance and upkeep of the hot water supply system is essential for ensuring that it operates efficiently and provides a reliable source of hot water for guests. Some best practices for maintenance and upkeep include:

  • Regular inspection and cleaning of the storage tank and distribution system
  • Regular testing of the water quality to ensure compliance with local regulations
  • Monitoring and maintenance of water heating equipment to ensure proper functioning
  • Insulation of pipes and valves to prevent heat loss and maintain efficiency

Conclusion

A hot water supply system is an essential component of any hospitality establishment. By understanding the key components of the system and following best practices for maintenance and upkeep, hospitality professionals can ensure that their guests enjoy a reliable and efficient source of hot water for all their needs.

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Syllabus BHM106

01 Maintenance

  1. Introduction
  2. Preventive and breakdown maintenance, comparisons
  3. Role & Importance of maintenance department in the hotel industry with emphasis on its relation with other departments of the hotel.
  4. Organization chart of maintenance department, duties and responsibilities of maintenance department

02 Fuels used in the catering industry

  1. Introduction
  2. Types of fuel used in catering industry; calorific value; comparative study of different fuels
  3. Calculation of amount of fuel required and cost.

03 Gas

  1. Introduction
  2. Heat terms and units; method of transfer
  3. LPG and its properties; principles of Bunsen burner, precautions to be taken while handling gas; low and high-pressure burners and their corresponding heat output
  4. Gas bank, location, different types of manifolds

04 Electricity

  1. Introduction
  2. Fundamentals of electricity, insulators, conductors, current, potential difference resistance, power, energy concepts; definitions, their units and relationships, AC and DC; single phase and three phases and its importance on equipment specifications
  3. Electric circuits, open circuits and close circuits, symbols of circuit elements, series and parallel connections, short circuits, fuses; MCB, earthing, the reason for placing switches on the live wire side.
  4. Electric wires and types of wiring
  5. Calculation of electric energy consumption of equipment, and safety precautions to be observed while using electric appliances.
  6. Types of lighting, different lighting devices, incandescent lamps, fluorescent lamps, other gas-discharged lamps, illumination, and units of illumination.
  7. External lighting
  8. Safety in handling electrical equipment

05 Water systems

  1. Introduction
  2. Water distribution system in a hotel
  3. Cold water systems in India
  4. Hardness of water, water softening, base exchange method
  5. Cold water cistern swimming pools
  6. Hot water supply system in hotels
  7. Flushing system, water taps, traps and closets.

06 Refrigeration & Air-conditioning

  1. Basic principles, latent heat, boiling point and its dependence on pressure, vapour compressor system of refrigeration and refrigerants.
  2. Vapour absorption system, care and maintenance of refrigerators, defrosting, types of refrigerant units, their care and maintenance.
  3. Conditions for comfort, relative humidity, humidification, dehumidifying, due point control, unit of air conditioning
  4. Window type air conditioner, central air conditioning, preventive maintenance
  5. Vertical transportation, elevators, escalators

07 Fire prevention and fire fighting system

  1. Classes of fire, methods of extinguishing fires (Demonstration)
  2.  Fire extinguishers, portable and stationery
  3.  Fire detectors and alarm
  4. Automatic fire detectors cum extinguishing devices
  5. Structural protection
  6. Legal requirements

08 Waste disposal and pollution control

  1. Solid and liquid waste, sullage and sewage, disposal of solid waste
  2.  Sewage treatment
  3. Pollution related to the hotel industry
  4. Water pollution, sewage pollution
  5. Air pollution, noise pollution, thermal pollution
  6. Legal Requirements

09 Safety

  1. Accident prevention
  2. Slips and falls
  3. Other safety topics

10 Security

11 Equipment replacement policy

  1. Introduction
  2. Circumstances under which equipment are replaced.
  3. Replacement policy of items which gradually deteriorates
  4. Replacement when the average annual cost is minimum
  5. Replacement when the present cost is minimum
  6. The economic replacement cycle for suddenly failing equipment

12 Audio-visual equipment

  1. Various audio-visual equipment used in hotel
  2. Care and cleaning of an overhead projector, slide projector, LCD and PowerPoint presentation units
  3. Maintenance of computers
  4. Care and cleaning of PC, CPU, Modem, UPS, Printer, Laptops
  5. Sensors – Various sensors used in different locations of a hotel – type, uses and cost-effectiveness

13 Contract maintenance

  1. Introduction
  2. The necessity of contract maintenance, advantages and disadvantages of contract maintenance
  3. Essential requirements of a contract, types of contract, their comparative advantages and disadvantages.
  4. Procedure for inviting and processing tenders, negotiating and finalizing