China Promotes Climate Goal, and Builds New Coal Plants
The post China Promotes Climate Goal, and Builds New Coal Plants appeared first on POWER Magazine.
Chinese President Xi Jinping said he wants his country to “achieve carbon neutrality before 2060.” It will not be an easy task for the world’s largest emitter of greenhouse gases (GHG).
China, though it has canceled some planned thermal power plants over the past several years, has as much as 200 GW of coal-fired facilities in its development pipeline, according to Mary Hutzler, a distinguished Senior Fellow at the Institute for Energy Research. Hutzler, who spent more than 25 years as an analyst and for a time acting administrator with the U.S. Energy Information Administration (EIA), has said coal will be critical to China’s economic recovery after the coronavirus pandemic.
Xi, speaking to the United Nations General Assembly on Sept. 22 as part of Climate Week NYC 2020 in New York City, called for a “green revolution,” saying the COVID-19 pandemic highlighted the need to preserve the Earth’s environment.…
Improve Wind Turbine Safety with a Piston Accumulator Retrofit
The post Improve Wind Turbine Safety with a Piston Accumulator Retrofit appeared first on POWER Magazine.
Wind turbines are designed to maximize power production based on the predicted wind speeds found at the plant site. However, excessive wind speeds are experienced at times, so it is crucial to limit power generation at those times to avoid spontaneous runaway turbine situations that may cause damage to the turbine rotor or other parts of the driveline or generator. Wind turbine brake systems are a vital safety system. A critical component in the hydraulic braking system is an accumulator, which provides a supplemental flow of hydraulic fluid during emergency braking operations. Diaphragm-style accumulators are standard, although catastrophic failures in the rubber diaphragm are not uncommon. An attractive and more reliable alternative is the piston-style accumulator that is not susceptible to this failure mode.
By: Tom Ulery and Jeff Sage of Parker Hannifin
Wind turbines are designed to operate reliably over their typically 20-year design life.…