At 16: 36 on May 24, 2021, witnessed by more than 40 industry experts and customer representatives, including Duoji academician of Chinese Academy of Engineering and Prof. Dai Yiping of Xi'an Jiaotong University,the 300kW grade organic Rankine cycle (hereinafter referred to as "ORC") experimental power station independently developed by Dongfang Steam Turbine Co., Ltd., Dongfang Electric Group successfully achieved full load. With expert group leader Professor Dai Yiping solemnly declared: "Witness the successful completion of the ceremony!" Warm applause! The successful completion of the full load test indicates that Dongfang Electric has the capability of independent R & D and construction of ORC power plants.
The ORC test power station generates electricity under design and partial load conditions respectively. No working medium leaks on site. The design value is in good agreement with the test value. It has passed the scheduled test items successfully. It can operate efficiently and stably in the full power range, and can be controlled flexibly under different working conditions.
The main equipment of ORC power generation module of Dongfang Steam Turbine is fully enclosed, maglev, integrated turbine generator, two-stage cantilever 12000 RPM runoff turbine, No mechanical seal and lubricating oil system are used to avoid the pollution of working fluid and realize zero leakage at the same time. Compared with traditional ORC power generation equipment such as screw machine, it has the technical characteristics of high efficiency, low maintenance demand, high reliability and high availability. It has a good market prospect and social benefit in geothermal power generation and comprehensive utilization of energy, which is of positive significance to realize the strategic goal of "peak carbon dioxide emissions" and "carbon neutral."
The Fifth Plenary Session of the 19th Central Committee of CPC pointed out that we should accelerate the promotion of green and low-carbon development, support green technology innovation, develop environmental protection industries, and promote clean, low-carbon, safe and efficient use of energy. As a large state-owned energy equipment manufacturing enterprise, Dongfang Electric practices and carries forward the "Dongqi spirit," adhering to the mission of "shape the future with green power" actively serve the national major strategy, and firmly follow the ecological priority, green and low-carbon high-quality development path.
In order to break through the key technologies of self-made ORC power generation, Dongfang Steam Turbine has completed the research projects of "Research on Low Temperature Heat Source Power Generation Technology of Organic Rankine Cycle" and "Development of Key Technologies of Geothermal Power" in the past three years. A large amount of R & D funds were invested to construct a 300 kW ORC experimental power station. Completed dozens of ORC project consultations, formed from 100 kilowatts to 10 megawatts class of OREC generation equipment program reserves, The EPC capacity of small and medium ORC power stations is available, which can provide a complete set of solutions for mid-low temperature industrial waste heat generation and geothermal power generation.
Extended reading
Organic Rankine Cycle ("ORC") is a Rankin cycle in which water is replaced by refrigerant or alkane. Suitable for low temperature heat source power generation at 100 ~ 300 °C, the main applications include geothermal power generation, waste heat recovery power generation in steel and cement industry, exhaust waste heat of small and medium sized gas turbine, LNG cold energy generation, etc. It is of great significance for building a low energy consumption society and realizing "peak carbon dioxide emissions" and "carbon neutral" at an early date.