Hotels
 |
Using drives to provide safety & comfort for guests while saving energy
 | A 10% reduction in motor speed for centrifugal fan and pumps yields a 27% savings in electricity |
I. CUSTOMER ENVIRONMENT / PROJECT CONTEXT
Customer profile:
Located on the Potomac River in Prince George County, Maryland, the Westin National Harbor Hotel stands on a 300 acre waterfront property that incorporates the best in dining, shopping and entertainment experience.195 exceptionally-appointed guest rooms, including five suites, are designed with guest comfort in mind. Amenities include flat panel LCD televisions, High Speed Internet access, Heavenly Beds®and Heavenly Showers®, which are a trademark of Westin properties.With panoramic views of the Potomac River and Harbor Walk, the restaurant and lobby add to the world class destination.The Westin Hotel is located at 171 Waterfront Street, National Harbor, Maryland across the Potomac River from Old Town Alexandra, Virginia. Near Washington, DC, Reagan National Airport, I-295 and Woodrow Wilson Bridge.
Customer objective and constraints:
Westin National Harbor Hotel required reliable controls for the hotel's physical plant to provide quality heating, ventilation and air conditioning comfort for hotel guests.II. SOLUTION IMPLEMENTATION
Implementation methodology (main phases):
Westin National Harbor Hotel facility engineers, consultant engineers and mechanical contractor chose Square D®as their HVAC motor controls partner.
Solution overview (services, products, systems, architectures...):
Westin National Harbor Hotel uses Square D® brand S-FlexTM enclosed variable speed drives for pump and fan applications used in heating, ventilation and air conditioning communicating with a building automation system.
Applications include:•Control of water pumps circulating hot water from the boilers to the air handling units used in heating and for hot water booster pumps to guest rooms for hot showers•Control of water pumps circulating water from the chillers to the cooling towers •Control of cooling tower fans to cool the water inside the cooling towers
How did we estimate the energy savings (methodology, tools, ...)
By using variable speed drives to reduce cooling tower fan speeds and water pump speeds, Westin National Harbor Hotel saves on energy costs. A 10% reduction in motor speed for centrifugal fan and pumps yields a 27% savings in electricity
III. RESULTS / ACHIEVEMENT
Customer benefits:
Westin National Harbor Hotel used on Square D® enclosed drives to provide safety and comfort for their guests and to save energy.
 |
To know more |
Solution breakdown
Main products & systems:- Drives for pumps and fans 0,75 > 630 kW: Altivar 61
- Drives for pumps and fans 0,75 > 75 kW: Altivar 21
|