Shanghai Amman Yangyun Hotel
Basic information
Shanghai aman hotel project is the first aman brand introduced in Shanghai. The hotel is located in Minhang Majiao, named "Yangyun", aiming at maintaining peace and auspicious clouds in the heart. The form design principle of the hotel is to combine the modern simple style with the tradition, reasonably use the local materials, and create the modern architectural expression that permeates the traditional charm. Aman hotel project has an investment of 3.3 billion yuan and a land area of 430000 square meters. There will be 32 ancient Hui style houses in Ming and Qing Dynasties to be redesigned and relocated. Thousands of second-class rare and precious ancient camphor trees will become an integral part of Maqiao Forest Sports City. Aman Maqiao will be an organic combination of 4000 year culture, 1000 year old trees and 300 year old houses.
Hotel heating and ventilation requirements
The design of temperature and humidity shall first be set according to the national energy-saving specifications, but the indoor design parameters generally cannot meet the management requirements of five star hotel according to the current energy-saving specifications, which requires Party A to communicate with relevant departments and construction drawing review units.
The design of fresh air volume is basically the same. When the hotel needs to carry out overseas "green building" certification, it should be noted that the fresh air volume is required to be increased by 30%, for example, the office becomes 39m3 / h per person.
Scheme description
According to the requirements of the owner and design, our company has installed DHP heat pipe in the air conditioning box to achieve the purpose. Here, the working condition of one of them is selected for analysis, and the specific design parameters are as follows:
The advanced DHP heat pipe technology is used in the fresh air air conditioning box, which can save more than 35% energy compared with the conventional design. It can be seen from the calculation that the effect is quite remarkable. At the same time, reduce the relative humidity of the indoor air, and provide high-quality indoor air.
Energy saving analysis
1. Operating parameters
| Air inlet condition | Working condition after DHP Precooling | Working condition after surface cooler | Working condition after DHP reheating | |
| Dry bulb (℃) | 27 | 24.91 | 14.2 | 16.29 |
| Wet bulb (℃) | 19.52 | 18.86 | 13.72 | 14.52 |
| relative humidity | 50% | 56.57% | 95% | 83.05% |
2. Energy saving analysis and calculation
a. Calculation of unit energy consumption reduction
Saving cooling capacity of surface cooler: take a new air conditioner with fresh air capacity of 11010m? / h as an example, compared with the conventional treatment process, the heat pipe heat recovery type air conditioner box can save 15.5KW.
b. Operation cost saving calculation
Assumptions
| Location: | Shanghai | ||
| Air conditioning operation time: | Summer 12h / day * 122d = 1464h (June September) | ||
| Winter 12h / day * 151 days = 1812h (November March) | |||
| Heating coefficient in winter: | 3.6 | Cooling coefficient in summer: | 3.2 |
| electricity fees： | Commercial power 1.2 yuan / kWh | ||
The annual operation cost saved is 17922 yuan. Combined with the initial investment, the initial investment of increasing heat pipe heat recovery can be recovered within one year.
