The solution - Magnasmart chiller with oil-free Danfoss Turbocor™ compressor.After various technical discussions and approval from the Sun-n-Sand´s engineering team, Blue Star Ltd. supplied LCWT1-0515F Turbocor™ chiller to Shirdi in January 2012. The chiller is designed for 0.68 kW/TR where as IPLV is 0.359 kW/TR. The installation and commissioning.The chiller location on the 7th floor had site constraints such as limited roof space, conversion of water piping from the old chiller to the new chiller with space constraints. Blue Star Ltd. completed the installation in February 2012. The service engineering was exclusively trained by Danfoss USA. After a full analysis of data retrieved from the inverter chiller and compressor, it was proven that the optimized algorithms for India conditions successfully ran the chiller in its most efficient envelope during low load conditions. In Operation – The new chiller is not only highly energy efficient.“Noise and vibrations are critical for hotel applications”, said Mr. Rajesh Advani, Managing Director of the Sun-n-Sand Group, and continued, “I am impressed with the 73dBA sound level of the running machine which allowed us to re-occupy the office space directly below the chiller room.” “Blue Star´s Magnasmart chiller with oil-free centrifugal compressor technology boosts energy efficiency and cuts operating costs,” said the plant operator at Sun-n-Sand. “It provides much better efficiency compared to the old unit and we are all very pleased with the smooth and efficient operation of the new Magnasmart chiller.” Mr. Shinde, Sun-n-Sands facility manager, added: “Total costs to run the inverter air-conditioning plant decreased drastically. We are saving approximately 200,000 to 250,000 INR (US$3,200 to 4,000) per month”. Payback was within 18 month.
On top of the energy savings and quiet operation, the staff at the hotel is pleased to see further advantages of the Magnasmart inverter chiller with Danfoss Turbocor™ compressor over their old cooling units:
ConclusionThe goals of the project have been met. Comparing energy consumption of two days data log at the same day of 2011 and 2012, the operating costs in 2012 had gone down by 42%, while there was a higher occupancy level in the hotel. Same is for all months and throughout the year.
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