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    Core castings for the world's most powerful onshore wind turbine Photo: website of Science and Technology Daily
The core castings for the world's most powerful onshore wind turbine in terms of single‑unit capacity have recently been delivered by a Chinese company, marking a technological breakthrough in the large‑megawatt onshore wind power castings, domestic news portal stdaily.com affiliated with Science and Technology Daily reported on Wednesday.
Independently developed by Dalian Huarui Heavy Industry Group Co., Ltd. (DHHI), the delivered components include the bearing housing and base castings for 15 MW doubly fed onshore wind turbines. The components need to bear the huge gravity, wind loads and alternating loads transmitted from the blades and hub, and transfer the loads to the generator, ensuring steady rotation of the main shaft. 
The products passed all customer inspections and assessments in one go and were officially delivery, stdaily.com reported.
Adopting an advanced modular design, the turbine components delivered can support flexible power adjustment ranging from 13 MW to 16 MW, enabling adaptive operation to varying and complex wind conditions across diverse regions, the report said.
The turbine's rotor diameter ranges from 240 meters to 260 meters, and are compatible with tower heights of 135 meters to 190 meters, delivering a maximum swept area of 53,000 square meters, roughly 8 standard football pitchs (105m×68m). This places the unit's overall performance among the world's top-tier.
Such super-large castings place extremely high demand on material properties, casting processes, dimensional accuracy and internal quality. The successful validation and delivery of the products therefore demonstrate the research and development, as well as manufacturing capabilities in super‑large wind power castings, stdaily.com reported.
Global Times
。    AI摘要      首届全国柰李种业创新研讨会在古田举办。福建农林大学选育的“仕坂晚柰”成为全国首个国审柰李新品种。该团队良种推广超40万亩，带动新增产值50亿元，助推产业高质量发展。

B |          东南网8月20日讯（福建日报记者 张辉 通讯员 吴元华） 近日，首届全国柰李种业创新与产业高质量发展研讨会在古田举办。研讨会共举办12场专题报告，旨在搭建产学研协同创新平台。    柰李是福建栽培面积和产量最大的落叶果树。记者从现场获悉，作为柰李原产地，福建近年来大力推进柰李种业创新，育成了一批综合性状优良、熟期差异化、市场匹配性强的品种。    其中，由福建农林大学园艺学院陈发兴教授柰李种业团队选育的“仕坂晚柰”，不久前通过国家林木品种委员会审定，成为全国首个国审柰李新品种。该品种在丰产性、果实品质、抗逆性、适应性等关键性状上表现优异，被农业农村部推介为农业主导品种。    据悉，该团队近年来自主选育的柰李系列良种，已在福建、湖南、广东等省份推广超40万亩，带动产业新增产值50亿元以上。

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Published on:08:52:57