Designing and Optimizing Control of Central Chiller Plant for High-Rise Buildings

147 Abstract— This paper presents an approach for analyzing, designing and optimizing control for central chiller plant system, in a centralized air-conditioning system using chillers. The optimization control program is implemented on the Building Management System (BMS) from Siemens provider. The optimal control approach is relied on analyzing chiller’s machine principle and performance characteristics curve, the flow rate per capacity of chiller’s condenser and evaporator, the temperature of chilled water supply and condenser water supply, real data of pump’s flow rate. The program permits a stabilized control and operates the plant around the optimum point of all equipment’s, in the chilled water circulation as well as condenser’s cooling water circulation. The system, therefore, reduces an investor’s total life-cycle cost and effectively contributes the energy efficiency and save the global environment. The tested data in one building complex showed the good performance of the program and saving electrical consumption.