Coupled simulations of aerodynamic and heat transfer can minimize efforts for developing both stationary gas turbines and aero engines. Conjugate heat transfer (CHT) calculations cut costs. According to Rene Braun, technical manager at B&B-AGEMA, “Increasing firing temperatures in new gas turbines and upgrades of existing machine concepts, while considering cooling efficiencies, requires highly complex simulation models and accurate solutions. Thus, the quality of numerical results is essential.”
China’s Huaneng Power International, a listed power producer with controlled generation capacity of 102.5 GW, has seen rapid growth both at home and abroad. Over the first three quarters of this year, Huaneng Power recorded a 26.52% growth in output of its power plants within China, with total electricity sold amounting to 294.271 billion kWh.
Profit margins for burning coal and natural gas for power generation – dark & spark spreads – have both declined during the first half of this year. Still, comparing both spreads, according to the EIA analysts, “appear to indicate that natural gas-fired units have been more profitable than coal-fired units recently,” notably at the PJM Western hub.
Dubai Hills Estate, a joint venture between Emaar Properties and Meraas Holding, have awarded a $45 million contract to ABB for a substation that helps feed electricity to a new integrated lifestyle project in the city. Dubai consumes over 37,000 GWh of electricity per annum – a third of which by the residential sector.
Low global LNG prices have improved the economics in China to generate electricity from natural gas instead of coal, and the subsequent surge in imports also increased the number of landed cargoes from the United States. According to the US-China Economic and Security Review Commission, the worth of US LNG exports in Jan-July 2017 exceeded $139 million, already 2% more than the 2016 total.
Electrifying remote Indonesian islands through ships, or barges, that generated electricity using LNG, is at the centre of a research plan supported by the governments of Indonesia and Japan. Tokyo hopes to export the new technology to other island nations in Asia Pacific.
Intermittency issues of wind and solar power supply are feared to jeopardize the stability of the U.S. power grid. To remedy this issue scientist at the Massachusetts Institute of Technology (MIT) have developed an “air-breathing” battery storage that, at the cheapest, run about $100/kWh and functions only in certain locations.
Dongfang Electric International, a Chinese engineering contractor, has signed a framework contract with Wärtsilä for the latter to supply the generating equipment for three new power plant projects in Angola. The plants are being built on a fast-track basis and are due to start operation in the third quarter of 2018.
Luminant, a subsidiary of the U.S. power company Vistra Energy, has decided to shut down two coal power plants in Texas, which together with an earlier announced closure, will remove more than 4,200MW of coal generating capacity from the market. The operational end for these units comes irrespective of last week’s pledges EPA administrator Scott Pruitt to repeal the Obama-era Clean Power Plan (CPP), in a bid to ease pressure on the coal industry.
Regardless of the implementation of the Clean Power Plan, NRG and several other large U.S. power generators have already come forward with their own commitments to reduce carbon emissions. Over the past two years, NRG managed to reduce its absolute GHG emissions by 35%, putting it well on track to reach its 50% reduction goal by 2030.
The Brazilian utility Centrais Elétricas do Pará (CELPA) has contracted Siemens to design and install twelve microgrids at twelve distributed power stations across the state in order to remotely operate these assets via a central control center in Belém. Each distribute generator will be monitored as a self-contained island network, with the overall monitoring system scheduled to go into service at the beginning of 2018.
In 2018, energy-related CO2 emissions forecast to rise for each fossil fuel—petroleum, natural gas, and coal—for a total increase of 111 million metric tons. According to EIA’s Short-Term Energy Outlook (STEO), this rise in energy-related emissions is caused by an overall rise in electricity output, and reverses a 3-year trend of falling emissions in the power sectors.
Peak power demand in the UK is forecast to top 50.7GW, but National Grid is “confident” to be able to balance the system “even under colder conditions than we have experienced in recent years,” the grid operator said in its 2017/18 winter outlook. Without intervention, reserve margins would be 1.2% - the lowest in a decade.
US oil major ExxonMobil has started to operate its third cogeneration plant at its Singapore Refinery on Jurong Island. The 84 MW plant makes use of natural gas and waste heat from the refinery to generate electricity and steam, enhancing the overall efficiency of the facility by 25%.
Renewable natural gas (RNG), derived from biogas collected at landfills, is getting increasingly used to meet fuel production targets set out by the U.S. Environmental Protection Agency’s (EPA). About 189 million gallons of RNG were consumed last year to meet about 82% of federal targets, set specifically for cellulosic biofuel.