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doi:10.3969/j. issn. 1009 3230.2016.02.008
应用能源技术
2016年第2期(总第218期)
冰蓄冷系统蓄冰率的确定方法及对经济性的影响
林育贤,冯圣红
(北京建筑大学,环境与能源工程学院,供热供燃气通风及空调工程北京重点实验室,北京100044)
摘要:发挥冰蓄冷空调系统技术优势的一个重要环节是实现系统的优化运行。冰蓄冷空调系统的优化控制是将运行费用作为目标函数,在满足蓄冰装置融冰能力和用户需求的约束条件下,使运行费用最省。而要实现对冰蓄冷系统的优化控制,需要确定系统的最佳蓄冰率。文章从工程经济学的角度出发,建立冰蓄冷系统经济性的数学模型,力图得出最佳的系统设备选择。并以一个实际工程案例进行详细论证,结果表明此数学模型有效,并探讨了该值对冰蓄冷系统初投资及运行费用的影响。所得结论可供设计者参考。
关键词:冰蓄冷空调系统;优化控制;蓄冰率;经济性;数学模型
中图分类号:TU831.3.7文献标志码:B文章编号:1009-3230(2016)02-0001-03 Determination of IPF and Impact onthe System Economic
LIN Yu xian, FENG Sheng hong
(Beijing University of Civil Engineering and Architecture, College of Environment and Energy Engineering,Beijing Key Lab of Heating,Gas Supply,Ventilating
and Air Conditioning Engineering,Beijing 100044,China)
Abstract: An important part of the technical advantages of ice storage air conditioning system is to achieve the optimal operation of the system. The optimal control of ice storage air conditioning system takes the initial cost and operation cost as the objective function, meeting the constraint conditions of the ice storage device melting capacity and customer demand, to save operation cost the most. In order to realize the optimal control of ice storage system, it is needed to determine the best IPF of the system. The paper is based on the engineering economics, establishing economy mathematical model of ice storage system, altempting to draw the best system equipment selection. Then with a practical engineering case were demonstrated in detail, the results show that this model is effective, and discuss the influence of IPF in the initial cost and operation cost of ice - storage system. The results can be conferred by the designers.
Key words: Ice storage air conditioning system; Optimal control; Ice packing factor.(IPF); E-conomic; Mathematical model
0引言
在现有的设计理念中,一且确定了运行策略之后,就可以进行系统设备的选择并完成系统的设计。然而,现有的设计策略并没有在经济性上
收稿日期:2015-1228
修订日期:20160129
作者简介:林育贤(1989-),男,在读硕士研究生,从事通风
空调制冷技术与设备方面的研究。
万方数据
做充分的考虑。合理分配在不同电价和时段下制冷机组与蓄冰装置的冷量是冰蓄冷系统控制的核心问题,在这其中存在着最优的蓄冰率[1-5]。为此,在进行蓄冷空调设计时应进行详细的技术经济比较,合理选择蓄冰率,寻求系统的初投资与运行费用之和的最优值。蓄冰率指的是蓄冷装置的总蓄冷量同全天总冷负荷的比值[6-8]。它是反应