The Xinhai Revolution Museum has exclusive requirements on the central air conditioning system. The museum has exhibition area, antique storeroom, business workspace, office area, tourist service area, outdoor area and other parts; therefore, the cooling capacity, temperature and humidity requirements are different in various areas. The workload of the air conditioning system differs between the peak and normal period. Meanwhile in summer, concerning the day and night protection of museum collections, the indoor temperature shouldn't be higher than 26℃ and the air conditioner must run for 24 hours. Above all, energy saving is of the first importance in choosing the air conditioning system. The maglev oil-free chiller that is famous for part-load efficiency can fully give play to its strength in terms of efficient operation and energy savings.
According to the statistics from Wuhan McQuay, the maglev oil-free air conditioning system in Xinhai Revolution Museum runs for about 1800 hours annually and saves 39% of yearly energy consumption, which is about 39000kwh of electricity compared to the high-efficiency centrifuge chiller under the same brand. Besides, the oil-free design of the maglev chiller does away with the oil circuit maintenance and consequently, supposing a 20-year lifecycle, it saves 100,000 RMB of maintenance expense only in lubricating oil replacement. (see below table)
Chiller Type |
Regular high-efficiency centrifugal chiller |
McQuay maglev oil free chiller |
IPLV |
3.25 |
5.39 |
Annual running time(hour) |
1800 |
1800 |
Annual power consumption(kWh) |
996923 |
601113 |
Average electric fee(rmb/kwh) |
1 |
1 |
Annual electricity expense(rmb) |
996923 |
601113 |
Annually saved electric expense(rmb) |
|
395810 |
Power saving rate (%) |
|
39% |
Volume of lubricating oil change (L/time) |
30 |
0 |
Times of lubricating oil change |
10 |
0 |
Lubricating oil change charge (rmb) |
60000 |
0 |
Service charge (rmb) |
40000 |
0 |