本文概述了索诺玛州立大学中央冷冻水厂的分阶段改造计划。该工厂经历了许多运行问题，其设备（冷却器、泵）的运行远远超出了其预期使用寿命。此外，未来几栋大楼的边际容量将由税收系统来控制。改造计划包括将配电系统转换为一次二次/串联三次泵送，将提高电厂为未来建筑提供服务的能力，解决现有的循环配电系统问题，提高能源效率，降低维护成本，并提高系统可靠性。引用:ASHRAE Trans。第112卷第。2号文件QC-06-017，第187-197页

This paper outlines a phased retrofit plan for the central chilled water plant at Sonoma State University. The plant has experienced many operational problems and is composed of equipment (chillers, pumps) that has operated well beyond its expected service life. Furthermore, the campus master plan calls for the addition of several future buildings that will tax the already marginal capacity of the system. The retrofit plan, which includes converting the distribution system to primarysecondary/ series-tertiary pumping, will enhance the plant capacity to serve future buildings, resolve existing hydronic distribution system problems, improve energy efficiency, reduce maintenance costs, and improve system reliability.