NS Energy
上期文章介紹了用核能、水力和燃煤三種能源發(fā)電的的發(fā)電廠,本期文章我們來了解下用柴油、地?zé)岷腿細(xì)馊N能源發(fā)電的發(fā)電廠吧。
Diesel-fired power plants
Using diesel as the fuel, this type of power plantis used for small-scale production of electric power.
They are linstalled in places where there is no easy availability of alternative power sources and are mainly used as a 2lbackup for uninterrupted power supply whenever there are 3)outages.
Diesel plants require only a small area to be installed and offer higher thermal efficiency compared to coal-fired power plants.
Due to high 4)maintenance costs and diesel prices, the power plants have not gained popularity at the same rate as other types of power generation plants such as steam and hydro.
Geothermal power plants
The installed 5)capacity of geothermal energy has bgradually increased worldwide over the past decade, up from just short of 10 GW in 2010to almost 14 GW in 2019.
Geothermal power plants are considered to be environmentally friendly and emit lower levels of harmful gases compared with coal-fired power plants.
Gas-fired power plants
A gas-fired power plants burns natural gas-a rapidly growing energy source across the world-to generate electricity.
Although natural gas is a 7fossil fuel, the emissions produced from its 8combustion are much lower than those from coal or oil, according to a study by the Union of Concerned Scientists.
Data from the International Energy Agency (lEA) shows that gas-fired power generation expanded by 3% in 2019, taking its power generation in the global mix to 23%.
1) install 【Insto:I】v.安裝
2) backup 【'baekxp】 n.備份
3) outage 【'avtld3】 n.停電期
4) maintenance 【melntenans】n.保養(yǎng),維護(hù)
5) capacity 【ka'paesati】 n.容量
6) gradually 【'graed3uali】 adv.逐漸地
7) fossil 【n'st:l】n.化石
8) combustion 【kem'bastfen】n.燃燒
柴油發(fā)電廠
這種類型的發(fā)電廠使用柴油作為燃料,用于小規(guī)模生產(chǎn)電力。
它們安裝在無法輕易找到備用電源的地方,并且主要用作發(fā)生斷電時不間斷電源的備用電源。
與燃煤發(fā)電廠相比,柴油發(fā)電廠僅需在一個很小的區(qū)域進(jìn)行安裝,即可提供更高的熱效率。
由于高昂的維護(hù)成本和柴油價格,柴油發(fā)電廠沒有像其他類型的發(fā)電廠(如蒸汽和水力發(fā)電廠)那樣受歡迎。
地?zé)岚l(fā)電廠
在過去的十年中,全球地?zé)崮艿难b機(jī)容量逐漸增加,從2010年的不足10吉瓦增加到2019年的近14吉瓦。
與燃煤發(fā)電廠相比,地?zé)岚l(fā)電廠被認(rèn)為對環(huán)境友好,排放的有害氣體水平更低。燃?xì)獍l(fā)電廠
燃?xì)獍l(fā)電廠燃燒天然氣(一種在世界范圍內(nèi)迅速發(fā)展的能源)來發(fā)電。
根據(jù)科學(xué)家聯(lián)合會的一項(xiàng)研究,盡管天然氣是一種化石燃料,但燃燒產(chǎn)生的排放物遠(yuǎn)少于煤炭和石油。
國際能源署的數(shù)據(jù)顯示,燃?xì)獍l(fā)電量在2019年增長了3%,占全球混合能源發(fā)電量的23%。