For thoroughly know the energy saving effect of gehp , the thermodynamics analysis is processed with the first law of thermodynamics , exergy theory , energy grade theory and thermoeconomic method 为了深入了解燃气机热泵的节能效果,本文进行了热力学第一定律、 (火用)分析、能级分析和热经济学分析。
Based on numerous papers on automatic seedling classification ( asc ) , the seedling grading theory , traditional grading methods , the background and the proceeding of asc techniques are described 本文在对目前苗木自动分级文献理解和综合的基础上,首先通过对苗木分级技术和分级理论的研究,揭示了自动分级技术的发展背景和理论基础。
Because the improvement of coefficient of performance of the gehp mainly due to the use of waste heat from surroundings , we suggest that we should use energy grade theory to evaluate the performance of heat pump 由于能级平衡理论分析考虑了(火无)的作用,而热泵供暖时其性能系数的提高主要是利用了环境热量,所以建议采用能级平衡理论来分析评价热泵的性能。
The ecology investigate viewpoint , life cycle assessment and energy redundancy degree will develop the theory of cogeneration , while the exergy analysis , energy grade theory and thermo - economic method also enrich the evaluation method of industrial ecology 工业生态学的生态学研究视角、生命周期评价方法和能量冗余性可以拓展总能系统的理论。而总能系统的(火用)分析、能级平衡理论和热经济学分析方法可以丰富工业生态学评价方法。
Which are higher than electric driven heat pump , gas boiler , coal boiler and electric boiler . the energy grade theory analysis results also show that the energy utilization of gehp is comparatively reasonable . exergy cost of gehp is 11 . 2 yuan / gj by thermoeconomic method , which is much lower than the heating price nowadays 对比发现,燃气机热泵的一次能源利用率和(火用)效率均高于电动热泵、燃气锅炉、燃煤锅炉和电锅炉;对燃气机热泵系统的能级分析也表示系统的能量利用过程比较合理;通过热经济学的分析,得出燃气机热泵的供热(火用)成本为11 . 2元gj ,这个价格与现行集中供热的价格相比还是很有优势的。
The paper contains two segments : static and dynamic detection , evaluation and alteration . static monitoring contains apparent and load detection . the model of multi - layer fuzzy evaluation and the bridge using capability grade membership function are used in the appraisal of the bridge technical condition of the highroad criterion technic and maintenance , and then the data and excel of the bridge compontents . the bridge grade membership function can be deduced from the factor theory domain . grade theory domain and the bridge using capacity grade membership function , then by baseding the connection of weigh and factor judgement matrix and judging gradually , finally the bridge comprehensive evaluation synthetical judging grade will be figured out 在表观检测中将多层次模糊评价模型和桥梁使用性能等级隶属函数引入《公路技术养护规范》中的桥梁技术状况等级评定中,并对此规范中的桥梁部件缺损状况评定状况进行修正;通过建立因素论域、等级论域以及根据王光远教授提出的利用典型函数形式来建立桥梁使用性能等级隶属函数,通过权重和因素评判矩阵的关系来运算,逐级评判,最终求出桥梁综合评判等级。