| The objective of this thesis is to present a practical performance diagram of AC(Air Conditioning)systematic operation.The main content of this research is the study on the design of AC systematic performance diagram.Objective indexes and correspondent main influencing factors and their parameters are selected and listed.Proper coordinate systems are studied and selected,theoretical relations among these objective indexes and influencing factors are employed or explored,these relations are collected and presented as the coordinate curves in the specially made performance diagram of AC systematic operation.These diagrams show the state or variations(with the amount changes of some factors)of AC systematic operation iconically and visually can make the analytic and optimal work of AC systematic operation more convenient,more quickly and more effective for all the professionals and practitioners.The concept of optimal systematical operation zone and its determination method are also presented.The AC system operation is influenced by many factors,theoretical relations among objective indexes and these influencing factors are multiple and complex,diagnostic approaches and optimal theory of AC systematical operation are recondite.All these aspect can not be well learned and grasped by ordinary practitioners.Prompt,reasonable,accurate in-situ adjustments or regulations of AC system operation can not be well made in general practice in order to make the AC system operation optimally.So,most of the AC systems are in the state of morbid operation,weak maintenance and management.Multiple and complex theoretical relations among objective indexes and influencing factors,recondite diagnostic approaches and optimal theory of AC systematical operation are interpreted,processed and transferred into the form of line graphs in our work.Based on these line graphs,performance diagrams of AC system can be established to make diagnostic and optimal approaches of AC system(source side)operation more practical,more feasible,more effective.Based on these systematic performance diagrams,the guidance of performance diagnosis and optimal operation(based on the principle of variable flow control and constant flow control)of AC systems(source side)can be realized rapidly and accurately in practice. |
