Full
Outline
In order to construct a quality evaluation system of internal combustion engine working cycle with a predictable, measurable and evaluable way, an analysis method of the “quality-quantity” process of cycle fuel energy was elaborated in detail. Based on the results of the one-dimensional simulation software for the engine working process, the entropy change(qualitative change) and enthalpy change(quantity change) of the cycle working fluid were calculated by the temperature-entropy relationship(T-S diagram), the energy loss path of working fluid of internal combustion engines was analyzed from the whole cycle process, and the energy quality loss and quantity dissipation of the working fluid were quantitatively evaluated. Comparing the “quality-quantity” process of the cycle working fluid under the intake pressure of 0.1MPa and 0.2MPa, the results show that the entropy increment of the exhaust working fluid decreases by 5.42%, the energy quality loss is inhibited, the exhaust enthalpy increment decreases by 35.19%, and the energy quantity dissipation decreases under the intake pressure of 0.2MPa. The “quality-quantity” process analysis of the working fluid of the internal combustion engine cycle based on the simulation data can realize the quantitative evaluation of the total cycle course of the energy quality loss and quantity dissipation of the working fluid, which has universal applicability and certain useful value.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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