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其二是在此基础上依据各系统特性,实现优化组合, 达到运行费用最省的最优策略.系统最终的控制指标是根据不同室外条件、不同负荷需 Figure 4.1. The Shanghai Tower has a unique architectural style and significant height, especially compared to the surrounding buildings. (Source: Gensler) 图4.1 与周边建筑相比,上海中心大厦具有独特的建筑 风格与出众的高度 (来源:Gensler) space and indoor story heights, and an all air VAV conditioning system. Since the indoor noise is required to be less than

45 decibels, noise elimination equipment is installed in the machine room and air blast ducts. By and large, the aforementioned measures still fail to meet the requirements of noise elimination. Thus, in the stage of equipment tendering, we put forward a highly rigorous test requirement for the noise of floor air handling units and air conditioning facilities. Also, we instated a more severe manufacturing requirement on the boundary dimensions of air conditioning units in order to also meet the needs for air conditioning room spaces. We proposed the manufacturing of ultra- silent air handling units too. In the stage of design bidding, we evaluated noise levels of the units by testing the prototype'

s noise spectrum eight times according to the noise evaluation standard Nc40 values. Jiangsu Feng Shen won this prototype testing that was held as a public bidding process. Jiangsu was then able to manufacture units for the Shanghai Tower. The noise of the ultra-silent air handling unit adopted by Shanghai Tower has been reduced so substantially that they produce no more than

15 db (A). 76? |? Environmental Controls and Safety CPMS- Central Energy Management Control System As a supertall landmark building, Shanghai Tower will have a large volume and even larger energy consumption. The situation of energy-saving and cost-reduction is grim. Therefore, reducing the amount of energy consumption in use for this project is an important challenge that we are faced with. The project uses a central energy management control system (CPMS) to monitor the air conditioning load and forecast management demand. This system optimizes each subsystem'

s operation to achieve heightened energy-saving and cost-reduction. High central areas employ conventional centrifugal refrigeration unit systems and low central areas employ a multi-cold source. This includes an ice storage system, a ground-source heat pump system, a secondary pumping system, a free cold-source system, a cooling-heating- power supply system, and a boiler. ? Cold and heat source equipments consist of lithium-bromide absorption heating units ? A conventional centrifugal refrigeration unit, ? A dual operating conditioning centrifugal unit ? Screwing ground source heat pump units ? Gas generating sets with internal combustion ? Gas steam boilers Operational strategies of the CPMS or the Central Energy Management Control System, includes the following aspects: ? Optimizing the composition of the combined cooling, heating, and power systems with combined operational system ? Refrigeration system consisting of steam boilers with combined operational strategy ? General Electric refrigeration system with combined operational strategy ? Ice storage systems and the optimally combined operational strategy ? The composition of the heat pump system and combined operational strategy 求、不同设备运行效率、不同时段、不同 能源价格等因素条件下,力求能源投入与 能源产出的最佳效益. 系统招标为系统集成招标,包括双工况 离心式冷水机组(YORK)、CPMS控制系统 (Johnson Controls)及深化设计等. 冰蓄冷系统 作为主要调峰填谷手段,上海中心空调系 统设计采用了冰蓄冷系统,实现低温送 风,节省水风输送系统的投资和能耗,具 有应急冷源、空调可靠性高、供冷启动时 间短(只需15-20分钟即可达到所需温度, 常规系统约需1小时)等特点,系统共选用 3台空调制冷量为1800RT的双工况制冷主 机,总蓄冰容量为26400RTh;