District Cooling System

District Cooling System

District Cooling system"DCS" is the production and distribution of cooling from a central facility to multiple buildings. The system pumps chilled water through a network of pipes to buildings and developments for air conditioning purposes. District Cooling is widely used in downtown business districts and institutional settings such as college campuses, Plazas, Hotels, High rise Towers etc. When DCS system is used, buildings no longer need to own and operate their own chillers or air conditioners. In addition, District Cooling has proven to be a major contributor to Greenhouse Gas reduction.

Many people may not be aware with District Cooling, because it quietly does its job. Also, as the network of pipes that deliver the chilled water is usually concealed under the streets, most people don't even realize that it exists.

District Cooling systems displace peak electric power demand with Thermal storage using ice or chilled water. This benefits the local power grid by reducing peak power demand and alleviating power congestions due to power transmission limitations in cities. So District cooling not only helps cool cities, it helps the challenges posed by high electric consumptions.In addition, there are other numerous advantages to owners and real estate developers, a few of them are listed below:

  • Substantial reduction of capital costs;
  • Substantial energy savings;
  • Total elimination of noise within the user's building and at its surrounding;
  • Increased floor space for a more profitable use;
  • Money better spent for the cooling energy consumed instead of being locked in equipment, mainly running at partial load, thus inefficiently;
  • Environmentally friendly and virtually maintenance free services.

What is District Cooling Service Provider?

District Cooling can be defined as the distribution of cooling from one or more sources to multiple buildings. District cooling systems produce chilled water at a central plant and then supply it through pipes to the buildings in the district for air conditioning purpose. District cooling is now widely used in downtown business districts and institutional settings such as college campuses plazas, commercial complexes. Individual buildings, doesn't need their own chillers or air conditioners any more. A district cooling system does that work for them. District cooling has also proven to be a major contributor to Greenhouse Gas reduction in many cases.

Many people may not be familiar with district cooling, because it quietly does its job. Plus, the pipes that deliver the chilled water are usually concealed underneath the streets, so most people don't know they are there.

District cooling system displace peak electric power demand with district cooling and storage using ice or chilled water. This benefits the local power grid by reducing peak power demand and alleviating power congestion due to power transmission limitations in cities. So district cooling not only helps cool cities, it helps alleviate the challenges posed by high consumption.

A District Cooling Service Provider, such as Saudi Tabreed, develops and invests district cooling schemes; we provide long term contracts for the supply of cooling to single or multiple customers. The contracts guarantee chilled water supply date, continuous supply throughout the contract at a fixed cost. A summary of our standard contract can be obtained in download section. The district cooling service provider delivers not only cost effective working solutions but peace of mind.

Benefits of Connection

District cooling system provides a variety of benefits, both on service quality and economic. The qualitative advantages are perceived in terms of better comfort, reliability, and maximized convenience. Mechanical cooling and air conditioning requirements are growing rapidly throughout the world, partly because there are many new buildings being built and those buildings are being built in warm climates.

However, no matter where those buildings are built, they tend to be tighter and more densely packed than they used to be. This creates a need for air conditioning even in very cold climates.

People are also increasingly emitting more and more heat into buildings through all types of electronic equipment that generate extra heat such as computers and various other gadgets. All this has led to a growing demand for comfort in homes and offices, a need that is directly addressed by District Cooling.

The economic benefits can be experienced by both the owner and the tenant, where the capital costs of control panels, internal power distribution, annual maintenance and power consumption inside the building are reduced and the cost of chillers are eliminated.

The following are just a few of the numerous benefits of using District Cooling;

  • Better quality of cooling
  • Maximum cost effectiveness
  • Capital cost elimination
  • Space saving
  • Decrease in sound pollution
  • Environmentally friendly
  • Tenant / User Comfort
  • Individual space or room temperature control using multiple indoor fan-coil units.
  • Better indoor humidity control.
  • Elimination of noise and freeing space, by eliminating the need for chillers on every roof.
  • Minimum maintenance requirements, giving tenants more privacy and security.
  • Higher system reliability due to a high-tech plant room design.
  • Better building aesthetics - no bulky outdoor equipment.
  • More outdoor space made available.
  • An overall high comfort factor means happy tenants.
  • System Reliability
    • Units used are high-tech and industrial which dramatically decreases the failure frequency compared to commercial equipment. District cooling reliability is in excess of 99.94%. (Source: IDEA)
    • Standby units always available at every cooling facility.
    • The average lifespan of industrial equipment is 30 years compared to 15 years for commercial equipment.
    • Round the clock operation and maintenance at the Central plant room ensuring preventive maintenance and a swift response in case of malfunctions.
    • Industrial equipment are by far more efficient than commercial equipment.
    • District cooling systems consume far less energy than air-cooled and water cooled systems.
    • Using different techniques that help reduce the annual energy consumption by 55%.
    • Flexibility of using different energy sources such as natural gas, electricity etc...
    • A small maintenance team can maintain the central plant, as compared to the large number of maintenance team required to maintain many smaller plants or hundreds of condensing units. Fan coil units and air handling units require minimal maintenance and rear breakdown occurrence.
    • Reduced frequency of equipment replacement due to longer equipment lifetime compared to commercial equipment.
    • Improved efficiency reduces CO2 emission. Each 1 KW-Hr used from Electric utility network produces 1.05 Kg of CO2.
    • Central plant room uses ozone friendly refrigerant such as HFC-134a. Leakage from one central plant is much lower than from many scattered plants or units.
    • Air conditioning equipment consumes around 70% of total building energy and constitutes 70% of the peak electric demand. By shifting that load from individual houses to a central plant, the housing electric load is reduced substantially and along with it the number of electric substations and length and sizes of electric cables.
    • District cooling requires far less electric power than multiple plant rooms or ducted splits. Furthermore the plant room can house the electric substation, enormously reducing the electric works.
    • Electric demand and peak shaving are easily controlled when district cooling is applied. This especially important in the case of on-site continuous or standby power generation.
    • Gas engine chiller can be used for standby or peak shaving operation in parallel with electric chillers.