产品展厅>>产品销售>>辰工开发系列软件>>辰工地热发电优化设计软件
地热发电利用一种工质（传热工质）从地热井中把热量输出地面，在通过换热器把从热量从传热工质传递到另一种工质（动力工质），传热工质放出热量后温度降低，重新进入地热井传输热量。动力工质从传热工质吸收热量以后，带动透平对外做功。
本软件通过建立地层热传导、井筒热对流方程，开展地层及井筒温度方程的求解，结合有机朗肯循环理论。根据地热井的温度及传热状况、动力循环的热源与环境温度，分别选取最为合适传热工质和动力工质，实现地热发电优化设计。
软件主要功能有：
不同生产时间下井底温度计算。
井底定温条件下地层向井筒提供热量计算。
针对不同工质的朗肯循环计算。
地热发电最优化设计。
不同生产时间下地层温度降落漏斗的计算。
井筒温度剖面计算。
地热发电的敏感参数分析。
图1 温度在地层中的分布图 |
图2 交替压裂应力 |
Products>>Products on Sale>>Chengong Development Software Series>>Chengong Optimization Design Software of Geothermal Electric Power Generation
Geothermal electric power generation uses a kind of working medium(heat transfer working medium)to output heat from the geothermal well to the ground, then transfer heat from the heat transfer working medium to another working medium(dynamic working medium)through the heat exchanger. After the heat transfer working medium releases heat, the temperature decreases, and then re-enters the geothermal well to transfer heat. After absorbing heat from the heat transfer medium, the dynamic working medium drives the turbine to work externally.
Through the establishment of formation heat conduction and wellbore thermal convective equation, the solution of formation and wellbore temperature equation is carried out, and the organic Rankine cycle theory is combined with the software. According to the temperature and heat transfer condition of geothermal well, the heat source of power cycle and the circumstances temperature, the most suitable heat transfer working medium and power working medium are selected respectively to realize the optimal design of geothermal power generation.
The main functions of the software are as follows:
Calculation of
wellbore temperature profile.
Calculation of
formation temperature drop funnel at different production time.
Rankine cycle
calculation for different working medium.
Calculation of
bottom hole temperature at different production times.
Optimal design of
geothermal electric power generation.
Analysis of
sensitive parameters of geothermal electric power generation.
Under the
condition of fixed bottom hole temperature, calculations of heat supplied by
formation to wellbore.
| Figure1:
Temperature distribution in formation |
Figure2:
Temperature distribution in formation during recovery |