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This post was last edited by qinweijun on 2010-1-24 at 11:58. Is there anyone involved in biomass power generation? Let’s exchange information on the advantages and disadvantages of domestic and foreign technologies
Biomass power plants abroad started developing earlier than those in China, and their operation is also more mature. Personally, I think that from a purely technical perspective, the industry in China is already fairly mature. 12MW units have been put into operation in large numbers, and 25MW units are also about to be deployed. Several of the 12MW units we designed have been put into operation, and their performance is relatively stable. The equipment is also domestically produced, so biomass technology in China is basically mature. Moreover, some equipment such as fuel cutting equipment – some power plants use imported equipment from abroad, which costs millions of yuan – is not suitable for certain biomass resources; it was later replaced by domestic agricultural cutting equipment, whose price is less than 10,000 yuan. **Reduce costs. Therefore, the equipment selection for biomass power plants in China also needs to take into account the characteristics of local biomass resources. The main problem facing domestic biomass power plants at present is the relatively high construction and operation costs. First, the unit cost is high. Compared with conventional thermal power, the characteristics of agricultural and forestry biomass fuels result in higher investment per kilowatt. At present, the cost per kilowatt is over 10,000 yuan; the cost per kilowatt for the first **-grade demonstration project to be completed and put into operation, namely the Guoneng Shanxian Project, is as high as 13,000 yuan. Second is the high fuel cost. The fuel cost structure for biomass power generation is more complex than that of traditional power generation. Unlike traditional fuels, the cost of biomass power generation fuels includes, in addition to the purchase price of raw materials such as straw, significant proportions due to processing costs, storage and transportation expenses, as well as losses. Thirdly, compared to conventional coal-fired power plants, biomass power plants have more complex feeding systems, higher operating costs, and greater maintenance expenses. If the biomass fuel contains filamentous or fibrous components, it can easily cause blockages, which in turn makes the feeding systems more complex. Fourth, biomass power plants require certain external support staff, who are mainly involved in fuel handling, which increases the labor costs and administrative expenses associated with operations.
The business operation models in China differ greatly from those abroad. Many commercial enterprises often face restrictions, which leads to significantly increased operating costs. From the perspective of business operations alone, the technologies available in China are viable
I think that in China, research on fluidized beds and fixed beds has been going on for a long time; initially, the focus was on coal, but now it has shifted to biomass. In China, the institutions that conduct the most research on biomass are mainly the Guangdong Energy Research Institute, the Shandong Energy Research Institute, and the Liaoning Energy Research Institute. Abroad, countries such as Germany, Sweden, and Norway have conducted extensive research on biomass gasification. Recently, the UK has started to generate electricity by gasifying chicken manure. By the way, when it comes to microalgae, China and South Korea are relatively advanced in this field. It depends on which Newao company in Langfang it is; unfortunately, there very little information available online~~~
Based on various documents, the main issue seems to lie in fuel collection. If the purchase price is too low, no one is willing to sell their fuel; it might be used as feed or firewood, or simply burned in fields. If the price is slightly higher, factories cannot afford it. Additionally, some projects lack sufficient research, resulting in an insufficient supply of available raw materials, forcing competition with factories that produce paper and synthetic materials for these resources. Quality control during the collection process is also difficult; many cases of mixing soil into the fuel to increase its weight occur. To establish a stable and reliable supply system of raw materials, companies and relevant organizations need to work together.
So I think a decentralized type is better. It’s recycled right away, and utilized immediately. Effort is put into collecting it, but once the item becomes larger, it’s not necessarily any better...
Well, many people hold this view, including some experts and scholars. I read an opinion stating that on the one hand, we expend a lot of effort to transport concentrated resources such as coal and oil to various locations for decentralized use, and on the other hand, we also spend a lot of effort to gather these dispersed resources together for centralized use – is it really worth it? Although it still needs scientific verification, it’s an interesting idea, haha. However, it is now generally agreed that biomass energy is just one type of alternative energy; whether it can become the most prominent among these alternatives depends on technological advancements. 6# ppzzssff
It seems there’s only one company that has succeeded in the domestic market! Electricity price or **subsidy: 0.8 yuan/kWh
Which one is better in the domestic market? If anyone upstairs knows, please tell me
I’m also a bit concerned about which one it refers to The subsidy is usually 0.25 yuan per kilowatt-hour. What exactly are these subsidies of 0.8 yuan? Could you explain it in more detail?
I remember an article by Academician Shi Yuanchun that contained this statement: Biofuels are the only alternative to oil, as biomass is the only renewable resource that can be converted into a liquid form. Taking an unconventional approach is due to the fact that our bioenergy technology has not kept up; it requires our joint efforts. 7# lhc845283