氢燃料电池是怎样工作的？
How does a hydrogen fuel cell work?
电池里氢气在阳极分解成质子和电子，质子穿过膜、电子走外电路形成电流，在阴极与氧结合生成水，只排放水而不排废气。
Hydrogen splits into protons and electrons at the anode; protons cross a membrane while electrons travel the external circuit as current, and at the cathode they join oxygen to form only water.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Larminie & Dicks，《燃料电池系统解析》（第2版）
Larminie & Dicks, 'Fuel Cell Systems Explained' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL18161114W：Fuel cell systems expl
#能源 #氢燃料 #燃料电池
电动车充电桩功率越做越大，为什么快充不会一充就炸？
Chargers keep getting more powerful, so why doesn't fast charging blow up?
车与桩通过通信协商允许电流，电池管理系统监控每节电芯温度电压并动态限流，过热即降速保护。
Car and charger negotiate current while the BMS watches each cell's temperature and voltage and throttles to prevent overheating.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#充电桩 #快充 #BMS
在电解水制氢中，为什么质子交换膜 PEM 电解槽比碱性电解槽更适合波动电源？
In water electrolysis, why do PEM electrolyzers suit fluctuating power better than alkaline?
PEM 电解槽响应快、电流密度高、可在宽负荷范围快速启停，能紧跟风电光伏的波动出力。碱性电解槽惯量大、启停慢，频繁变负荷会加速电极老化和效率下降。
PEM electrolyzers respond fast with high current density and quick start-stop across wide loads, tracking variable wind/solar output. Alkaline units have large inertia and slow dynamics; frequent load swings accelerate aging and efficiency loss.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Larminie & Dicks，《燃料电池系统解析》（第2版）
Larminie & Dicks, 'Fuel Cell Systems Explained' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL18161114W：Fuel cell systems expl
#电解水 #PEM #制氢
潮汐发电站是怎样利用海水的涨落来发电的？
How does a tidal power plant generate electricity from the tides?
在海湾口建坝，涨潮蓄水、落潮放水，利用两侧水位差推动水轮机发电；也可用水下涡轮直接被潮流推动，能量来自月球引力引起的潮汐。
A barrage across a bay stores water at high tide and releases it at low tide through turbines, or underwater turbines are driven by the current; the energy comes from tidal forces of the Moon.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Twidell & Weir，《可再生能源资源》（第3版）
Twidell & Weir, 'Renewable Energy Resources' (3rd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#能源 #潮汐 #发电
核电站是怎样发电的？
How does a nuclear power plant generate electricity?
反应堆里铀原子核裂变释放巨大热能，把水加热成高温高压蒸汽，蒸汽推动汽轮机带动发电机发电，裂变链式反应由控制棒调节。
Uranium fission in the reactor releases heat that makes high-pressure steam, which spins a turbine driving a generator; control rods regulate the chain reaction.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Lamarsh & Baratta，《核工程导论》（第3版）
Lamarsh & Baratta, 'Introduction to Nuclear Engineering' (3rd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5901582W：Introduction to nuclear
#能源 #核能 #裂变
小型模块化反应堆（SMR）为什么被宣传为更安全的核电新方向，它靠什么缩小尺寸还保安全？
Why are small modular reactors (SMRs) promoted as a safer nuclear direction, and how do they stay safe while shrinking?
SMR 功率小、采用被动安全设计，靠自然对流和重力等非能动方式在事故时自动冷却，无需外部电力。工厂预制、批量生产也降低成本和建造周期。
SMRs are lower power with passive safety: natural convection and gravity cool them automatically in accidents without external power. Factory prefabrication and serial production also cut cost and build time.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
IAEA，《小型模块化反应堆技术进展》（2020）
IAEA, 'Advances in Small Modular Reactor Technology Developments' (2020)
#SMR #被动安全 #模块化
核反应堆靠什么让链式反应"持续但可控"？
What keeps a nuclear reactor's chain reaction going but under control?
铀-235吸收一个中子裂变时平均放出2到3个快中子，如果每次裂变恰好留下一个中子引发下一次裂变，链式反应就以恒定功率自持，这对应有效增殖因子k等于1的临界状态。控制棒用硼或镉制成，强烈吸收中子，插入越深中子损失越多；慢化剂（轻水、重水或石墨）把快中子减速成热中子，因为铀-235对热中子的裂变截面大得多。反应堆通过升降控制棒、调节冷却剂中硼浓度和控制慢化剂量来微调k，再依靠功率负反馈（多普勒展宽使吸收增强）天然稳定，防止功率失控。
When uranium-235 absorbs a neutron it fissions and releases 2-3 fast neutrons on average; if exactly one neutron per fission triggers the next fission, the chain sustains itself at constant power, corresponding to an effective multiplication factor k of 1 — criticality. Control rods made of boron or cadmium absorb neutrons strongly, so deeper insertion means more neutron loss; moderators (light water, heavy water, or graphite) slow fast neutrons to thermal energies, where U-235's fission cross section is far larger. Reactors tune k by moving rods, adjusting dissolved boron concentration, and controlling moderator volume, then rely on negative power feedback — Doppler broadening that increases absorption as temperature rises — for inherent stability against runaway power.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Twidell & Weir，《可再生能源资源》（第3版）
Twidell & Weir, 'Renewable Energy Resources' (3rd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#链式反应 #控制棒 #临界
在光伏系统中，为什么最大功率点跟踪 MPPT 能提高发电效率？
In PV systems, why does MPPT improve generation efficiency?
太阳能电池的输出功率随电压和电流变化，存在一个最大功率点，且会随光照和温度漂移。MPPT 控制器不断调整变换器工作点，使组件始终工作在最大功率点附近，避免固定电压下的功率损失。
A solar cell's power varies with voltage and current, peaking at a maximum power point that drifts with light and temperature. The MPPT controller continuously tunes the converter operating point to stay near that peak, avoiding losses from a fixed voltage.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Luque & Hegedus，《光伏科学与技术手册》（第2版）
Luque & Hegedus, 'Handbook of Photovoltaic Science and Engineering' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL18449153W：Handbook of photovolta
#MPPT #光伏 #效率
在海上风电中，为什么浮式基础能比固定式基础开拓更深水域的风场？
In offshore wind, why do floating foundations open deeper waters than fixed ones?
固定式基础靠打桩扎根海床，水深超过约 50 米后造价急剧上升。浮式基础用系泊缆和浮体像船一样漂浮支撑风机，不受海床深度限制，从而可利用远海更深、风资源更好的海域。
Fixed foundations are piled into the seabed and get far costlier beyond about 50 m depth. Floating platforms use mooring lines and buoys to support turbines like ships, unrestricted by depth, accessing deeper, windier far-offshore sites.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Burton，《风能手册》（第2版）
Burton, 'Wind Energy Handbook' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL21606346W：Wind Energy Handbook（首
#海上风电 #浮式 #系泊
钙钛矿/硅叠层电池为什么能突破单结硅电池的 Shockley–Queisser 效率上限？
How do perovskite/silicon tandem cells exceed the Shockley–Queisser limit that caps single-junction silicon?
单结电池的极限主要来自光谱失配：能量低于带隙的光子完全不被吸收，高于带隙的光子多余能量以热载流子弛豫成热，两项损失把 1.1 eV 硅的理论效率压在约 33% 以内。叠层把带隙约 1.6–1.7 eV 的钙钛矿放在顶层吸收蓝绿光并输出更高电压，让红外光透射到底部硅电池吸收，热化损失大幅减少，双结理论极限提高到 40% 以上。工程上两个子电池串联，需要电流匹配、透明复合（隧穿）层以及钙钛矿在湿热与紫外下的稳定性，目前实验室两端叠层认证效率已超过 30%。
The single-junction ceiling comes mainly from spectral mismatch: photons below the band gap are not absorbed at all, while excess energy of higher-energy photons thermalizes as heat, capping 1.1 eV silicon near 33 percent. A tandem puts a wide-gap perovskite of about 1.6–1.7 eV on top to harvest blue-green light at higher voltage and transmits infrared light to the silicon bottom cell, cutting thermalization losses and lifting the two-junction theoretical limit above 40 percent. In practice the sub-cells are series connected, so current matching, a transparent recombination or tunnel layer, and perovskite stability against humidity, heat and UV govern real devices; certified two-terminal tandems have now passed 30 percent.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-04
来源 · Source
Shockley 与 Queisser，Journal of Applied Physics 32, 510（1961）；NREL《Best Research-Cell Efficiency Chart》
Shockley & Queisser, Journal of Applied Physics 32, 510 (1961); NREL 'Best Research-Cell Efficiency Chart'
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.1063/1.1736034
#叠层太阳能电池 #Shockley-Queisser极限 #钙钛矿
为什么"碳中和"不只是少开车那么简单，难在哪儿？
Why is carbon neutrality far harder than simply driving less?
实现碳中和要在能源全链条发力：把电力系统的化石燃料换成风、光、水、核等零碳电源，再让交通、供暖、工业"电气化"——电动车、热泵、电炉，这又依赖大规模储能和特高压电网来支撑波动的新能源。钢铁、水泥、航空、化工等难减排行业需要氢冶金、碳捕集利用与封存（CCUS）等尚在商业化早期的技术。还要计算全生命周期排放，最后剩下的少量排放用生态碳汇或碳移除抵消。难点不只是技术，还有电网稳定性、成本以及数十年期能源基础设施的更新换代。
Reaching carbon neutrality demands action across the whole energy chain: replace fossil-fuel generation with zero-carbon wind, solar, hydro, and nuclear, then electrify transport, heating, and industry — EVs, heat pumps, electric furnaces — which in turn relies on massive storage and UHV grids to balance intermittent renewables. Hard-to-abate sectors like steel, cement, aviation, and chemicals need hydrogen metallurgy and carbon capture, utilization and storage (CCUS), still early in commercialization. Life-cycle emissions count too, and the small remainder is offset by carbon sinks or removal. The difficulty is not just technology but grid stability, cost, and replacing decades of energy infrastructure.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：本题原挂出处与答案内容不符，已撤回；具体书目待补，暂不展示来源。
本题原挂出处与答案内容不符，已撤回；具体书目待补。
Previous citation withdrawn as unsupported for this answer; a specific source is pending.
#碳中和 #能源转型 #碳捕集
电网全黑后怎么重启，难道要人工一台台点？
After a blackout, how is the grid restarted, by hand one by one?
靠黑启动：先用自带小电源（柴油机或水电）的电站起孤网，再逐级带起大机组和负荷，像多米诺恢复全网。
Black start uses plants with their own power to build a small grid, then cascades up to large units, like dominoes restoring the network.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#黑启动 #电网 #恢复
风力发电机转得并不快，为什么还能发出很多电？
Turbines spin slowly, so how do they make lots of power?
叶片靠变速齿轮箱或直驱发电机把低速大扭矩变成高频电，加上叶片长、扫风面积大，捕获的风功率并不小。
A gearbox or direct-drive generator turns slow, high-torque rotation into usable power; long blades sweep a large area.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#风机 #发电 #齿轮箱
小区配电箱上的漏电保护按钮，按下去是在测什么？
What does the test button on a residual-current device check?
漏保实时比较火线和零线电流，差值（漏向大地）超阈值就毫秒级跳闸；TEST键模拟漏电确认它还能动作。
An RCD compares live and neutral currents and trips if leakage to ground exceeds a threshold; the test button simulates a fault.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-05
来源 · Source
国际电工委员会（IEC）,《Residual current operated circuit-breakers for household and similar use》,IEC 61008/61009 (DOI: 10.3403/30326912)
IEC, 'Residual current operated circuit-breakers for household and similar use', IEC 61008/61009, DOI: 10.3403/30326912
独立核验依据 · Independent verification: 核验依据 1 Crossref DOI 10.3403/30326912; IEC 61008/61009
#漏电保护 #跳闸 #安全
一片风电场里，为什么下风向排的风机发电量常明显低于前排？
Inside a wind farm, why do downwind turbines usually generate noticeably less than the front row?
上游风机从气流中取走动能后，后方形成风速降低、湍流增强的尾流区，尾流要靠与周围空气掺混才逐渐恢复，恢复距离常达叶轮直径的若干倍到十几倍。由于风功率与风速三次方成正比，尾流里风速降低百分之十几就可能让发电量下降三成，整场累计的阵列损失常在百分之几到二十左右。因此布机时要沿主导风向拉大行距并错列排布，还可用尾流偏航控制让前排略微偏航，牺牲自身一点出力换取全场总发电量提升。
A turbine extracts kinetic energy from the flow and leaves a wake of reduced wind speed and raised turbulence that recovers only by mixing with surrounding air, typically over several to more than ten rotor diameters. Because power varies with the cube of wind speed, a wake deficit of a little over ten percent can cut a machine's output by about a third, and whole-farm array losses commonly run from a few percent to roughly twenty percent. Layouts therefore stretch spacing along the prevailing wind and stagger rows, and wake-steering control deliberately yaws upstream machines slightly, sacrificing their own output to raise total farm production.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-10-04
来源 · Source
Manwell、McGowan、Rogers，《Wind Energy Explained: Theory, Design and Application》（第2版）
Manwell, McGowan & Rogers, 'Wind Energy Explained: Theory, Design and Application' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 ISBN 9781119994367 (2024)
#风电场 #尾流效应 #阵列损失
太阳能电池板为什么大多是深蓝色而不是黑色或透明？
Why are solar panels dark blue rather than black or clear?
表面抗反射蓝膜减少光反射、让更多光进入硅片发电，蓝色是膜与硅的干涉色；黑色板多为高效双面或特定工艺。
A blue anti-reflective coating cuts reflection so more light enters the silicon; the hue is an interference effect.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
Green & Emery《太阳能电池原理》；NREL 光伏研究
Green & Emery, Solar Cells; NREL photovoltaics research
#太阳能板 #抗反射 #颜色
核电站为什么大多建在海边或大江大河边？
Why are nuclear plants usually by the sea or a big river?
核电机组需要巨量冷却水带走余热，临水取排水方便；也因机组大、需远离密集城区并便于重型设备水运。
Reactors need huge cooling water flows and sit away from dense cities, with waterways easing both cooling and heavy transport.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
陈敏恒 丛德滋 方图南 等 编,《化工原理》第3版,化学工业出版社,2006
Chen Minheng et al., Chemical Engineering Principles, 3rd ed., Chemical Industry Press, 2006
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787502582517（豆瓣书目条目: 化工原理）
#核电 #冷却 #选址
水力大坝为什么常修鱼道，鱼真会顺着走吗？
Why do dams have fish ladders, and do fish really use them?
鱼道用一连串浅水池和跌水模拟天然缓流，引导洄游鱼逆流越过坝体；设计坡度与流速要匹配鱼的种类才有效。
A fish ladder mimics gentle rapids with pools so migratory fish climb past the dam; slope and speed must suit the species.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#鱼道 #大坝 #生态
微电网和虚拟电厂（VPP）有什么不同，它们怎么帮电网消纳更多风光电？
How do microgrids and virtual power plants (VPPs) differ, and how do they help absorb more wind and solar?
微电网是局部可孤岛运行的小电网，自己平衡发用；VPP 是把分散的光伏、储能、电动车聚成“一个电厂”由云端统一调度。两者都让碎片化的清洁能源变得可调、可控、可用。
A microgrid is a local grid that can island and balance itself; a VPP aggregates scattered solar, storage and EVs into 'one plant' scheduled from the cloud. Both make fragmented clean energy dispatchable and usable.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-02
来源 · Source
Hatziargyriou，《微电网：架构与控制》（Wiley, 2014）
Hatziargyriou, 'Microgrids: Architectures and Control' (Wiley, 2014)
独立核验依据 · Independent verification: 核验依据 1 ISBN 9787111507116（豆瓣书目条目: 微电网——架构与控制）
#微电网 #虚拟电厂 #需求响应
光热发电（CSP）和光伏发电有什么不同，为什么它能“存热”继续发电？
How does concentrated solar power (CSP) differ from PV, and why can it 'store heat' and keep generating?
光伏直接把光变电、云来就停；CSP 用镜子把阳光聚到工质上加热，再靠储热罐把热量存几小时，晚上也能推动汽轮机发电。相当于给太阳装了个“热水电池”。
PV turns light straight to power and stops when clouds come; CSP mirrors concentrate sunlight to heat a fluid, stored in tanks for hours so a turbine can generate even at night. It is like a 'hot-water battery' for the sun.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Twidell & Weir，《可再生能源资源》（第3版）
Twidell & Weir, 'Renewable Energy Resources' (3rd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#光热 #储热 #聚光
为什么电动车电池冬天续航会明显变短？
Why do EV batteries lose range noticeably in winter?
低温下锂电池内部离子迁移变慢、内阻增大，可用容量和放电功率都下降，且暖风等附加用电增多。两方面叠加使实际可行驶里程缩短。
Cold slows ion transport and raises internal resistance in Li-ion cells, cutting usable capacity and power, while cabin heating adds load. Together they shorten real driving range.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-10-04
来源 · Source
Linden & Reddy，《林登电池手册》（第4版）
Linden & Reddy, 'Lindens Handbook of Batteries' (4th ed.)
独立核验依据 · Independent verification: 核验依据 1 ISBN 978-0-07-037921-3 (1995, McGraw-Hill)
#电动车 #电池 #低温
增强型地热系统（EGS）要在干热岩里人工『造』一个储层，工程上难在哪？
Enhanced geothermal systems must create a reservoir inside hot dry rock — what makes that so hard in practice?
传统地热依赖天然的热水或蒸汽储层，EGS 则钻到数千米深的高温结晶岩，用水力激发张开并连通原有裂隙形成人造换热网络，再从另一口井把加热后的水取回地面。难点是裂隙网络的走向与渗透率难以预测：通道太少则换热面积不足、流量上不去，通道过于集中又会短路，注入水没被充分加热就返回，产出温度快速衰减。注水还会改变断层应力而诱发地震（瑞士巴塞尔项目因此停止），高温高矿化度流体又会腐蚀套管并结垢，所以选址、微地震监测与注入压力管理构成 EGS 的核心工程内容。
Conventional geothermal taps natural hot water or steam, whereas EGS drills kilometres into hot crystalline rock and uses hydraulic stimulation to open and link existing fractures into an artificial heat exchanger, with a second well returning the heated water. The hard part is that fracture orientation and permeability are hard to predict: too little connectivity starves flow rate, while an over-concentrated channel short-circuits the loop so water returns insufficiently heated and production temperature declines fast. Injection also perturbs fault stresses and can induce felt earthquakes, as the Basel project showed, while hot saline fluids scale and corrode casing, so siting, microseismic monitoring and injection-pressure management dominate EGS engineering.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
麻省理工学院研究报告《The Future of Geothermal Energy》（2006）
MIT report, 'The Future of Geothermal Energy' (2006)
独立核验依据 · Independent verification: 核验依据 1 ARCHIVE 标识 futureofgeotherm0000unse：The future of geothe
#增强型地热 #水力激发 #诱发地震
风机遇到台风或检修时，怎么停下不转？
How does a turbine stop spinning in a typhoon or for service?
顺桨让叶片转到迎风最小角使风几乎推不动它，再上机械刹车锁住；电网失电时靠备用电池完成顺桨。
Feathering turns blades edge-on to the wind and a brake locks the rotor; backup batteries feather it if grid power fails.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#顺桨 #刹车 #停机
氢燃料电池为什么能"安静地"发电，产物只有水？
Why can a hydrogen fuel cell make electricity quietly with only water as waste?
燃料电池把燃料的化学能直接转化为电能，不经燃烧。氢气在阳极催化剂上分解为质子和电子，质子穿过质子交换膜到达阴极，电子被膜挡住、被迫经外电路流动做功；在阴极，氢离子、电子与氧气结合成水。单个电池电压只有约0.7伏，须串联成电堆使用。它的电效率可达50%到60%，高于内燃机，且零排放；瓶颈在于氢的制取与储运成本以及铂催化剂的高昂价格。
A fuel cell converts a fuel's chemical energy directly into electricity without combustion. At the anode, hydrogen splits on a catalyst into protons and electrons; the protons cross a proton-exchange membrane while the electrons are blocked by the membrane and forced through an external circuit to do work. At the cathode, hydrogen ions, electrons, and oxygen combine into water. Each cell makes only about 0.7 V, so cells are stacked in series. Electrical efficiency reaches 50-60%, above internal combustion, with zero tailpipe emissions; the bottlenecks are the cost of producing and storing hydrogen and of platinum catalysts.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
美国能源部《燃料电池技术手册》（Fuel Cell Handbook）第6版,2001
U.S. Department of Energy, Fuel Cell Handbook, 6th ed., 2001
#燃料电池 #质子交换膜 #氢能
为什么有些车用电电池、有些车用燃油，哪个更合适？
Why do some vehicles use batteries while others use fuel, and which fits better?
电池车零尾气、安静、适合短途和城市；燃油能量密度高、加注快、适合长途和缺电地区。选择取决于路程、充电条件和用途。
Battery vehicles are clean and quiet, great for short city trips; liquid fuel packs more energy and refuels fast, suiting long hauls and remote areas. The choice depends on distance, charging access and use.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Larminie & Dicks，《燃料电池系统解析》（第2版）
Larminie & Dicks, 'Fuel Cell Systems Explained' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL18161114W：Fuel cell systems expl
#能源 #电池车 #燃油车
为什么发电厂"烧同样的燃料"还能多发一份热？
How can a power plant wring extra heat out of the same fuel?
普通凝汽式电厂发电时，约六成能量作为废热从冷却塔白白排走；热电联产（CHP）则把发电后的余热蒸汽或热水送到附近的居民区和工厂供暖，实现"一鱼两吃"。燃料的总利用率可以从约40%提高到80%以上。代价是电厂必须靠近热用户，供热距离越长管网损耗越大，所以中国北方城镇集中供热常采用大型热电联产机组。
A conventional condensing plant dumps about 60% of the fuel's energy into the cooling tower as waste heat. Combined heat and power (CHP) captures the turbine's exhaust steam or hot water and delivers it to nearby homes and factories for heating — two uses from one fire. Total fuel utilization can rise from about 40% to over 80%. The catch is that the plant must sit close to heat customers because distribution losses grow with distance, which is why northern Chinese cities heat with large CHP units.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
陈敏恒 丛德滋 方图南 等 编,《化工原理》第3版,化学工业出版社,2006
Chen Minheng et al., Chemical Engineering Principles, 3rd ed., Chemical Industry Press, 2006
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787502582517（豆瓣书目条目: 化工原理）
#热电联产 #余热 #能效
压缩空气也能"存电"，它是怎么做到的？
How can compressed air store electricity?
压缩空气储能（CAES）在用电低谷时用电动机驱动压缩机，把空气压进地下盐穴或储罐，电能变成空气的压强能；用电高峰时放出压缩空气，加热后推动涡轮机发电。传统CAES放气前要烧天然气补热，效率只有40%到50%；新一代绝热CAES把压缩过程中产生的热储存起来回用，效率可提高到约70%。它储量大、寿命长达数十年、响应快，是继抽水蓄能之后第二大规模化储能路线。
Compressed-air energy storage (CAES) uses off-peak electricity to run compressors that force air into underground salt caverns or tanks, storing energy as air pressure; at peak hours the air is released, reheated, and run through turbines to generate. Conventional CAES burns natural gas to reheat the air and reaches only 40-50% efficiency, while new adiabatic CAES stores the heat of compression for reuse and can reach about 70%. It offers huge capacity, decades of life, and fast response — the second major utility-scale storage route after pumped hydro.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
陈敏恒 丛德滋 方图南 等 编,《化工原理》第3版,化学工业出版社,2006
Chen Minheng et al., Chemical Engineering Principles, 3rd ed., Chemical Industry Press, 2006
独立核验依据 · Independent verification: 核验依据 2 ISBN 9787502582517（豆瓣书目条目: 化工原理）
#压缩空气储能 #盐穴 #储能
风力发电机是怎样把风变成电的？
How does a wind turbine turn wind into electricity?
风吹动叶片像风车一样旋转，叶片连着发电机的轴，转动切割磁感线产生电流，风速越大发出的电越多。
Wind spins the blades like a windmill, the shaft turns a generator that induces current by moving through a magnetic field, and more wind means more power.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Burton，《风能手册》（第2版）
Burton, 'Wind Energy Handbook' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL21606346W：Wind Energy Handbook（首
#能源 #风电 #发电机
为什么核反应堆外面要包一层厚厚的混凝土"大罐子"？
Why does a nuclear reactor sit inside a thick concrete containment building?
那层安全壳是纵深防御的最后一道实体屏障，由约一米厚的预应力钢筋混凝土外加钢制气密内衬构成。它的任务很明确：即使冷却剂管路破裂甚至堆芯熔毁，也能把高温高压的放射性蒸汽锁在内部，防止放射性物质泄漏到环境中。设计上要承受事故工况的压强与温度，还要经受地震、飞机撞击等极端事件的考验。燃料包壳、反应堆压力容器与安全壳构成三道屏障。
The containment is the final physical barrier in defense-in-depth: roughly a meter of prestressed concrete with a steel, gas-tight liner inside. Its job is unambiguous — even if a coolant pipe breaks or the core melts, it traps the hot, high-pressure, radioactive steam inside and prevents release to the environment. It must survive design-basis-accident pressure and temperature as well as extreme events like earthquakes or aircraft impact. Fuel cladding, the reactor pressure vessel, and the containment form three barriers.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#安全壳 #纵深防御 #核安全
山顶上的风电叶片那么长，是怎么运上去的？
How do they transport those long blades up a mountain?
叶片超长超限，多用特种拖车低速夜运、转弯要清道；有的现场用模具分段粘接，避免上路难题。
Oversize blades move on special trailers at night with escorts, or are joined on-site from segments to avoid transport limits.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#叶片 #运输 #风电
什么是风力发电的切入、额定和切出风速？
What are cut-in, rated, and cut-out wind speeds for turbines?
切入风速是风机开始发电的最低风速；达到额定风速后输出功率稳定在额定值；超过切出风速（通常约每秒 25 米）为安全停机，避免叶片和结构过载受损。
Cut-in is the minimum wind speed to generate; at rated speed output holds at the rated power; above cut-out (about 25 m/s) the turbine shuts down to protect blades and structure from overload.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Burton，《风能手册》（第2版）
Burton, 'Wind Energy Handbook' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL21606346W：Wind Energy Handbook（首
#风电 #风速 #功率
太阳能板阴天或晚上还能发电吗？
Do solar panels work on cloudy days or at night?
阴天靠散射光仍能发一部分电，只是功率大降；晚上没有光就不发电，需靠电池或电网补电。
On cloudy days diffuse light still yields some power at reduced output; at night it produces none and draws from storage or grid.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#太阳能 #发电 #散射光
地热能是什么，怎样用来发电或取暖？
What is geothermal energy and how is it used?
地球内部的热量把地下水加热成热水或蒸汽，打出后可直接供暖，或推动汽轮机发电。它稳定可靠、不靠天气，但只在地质条件合适的地方好用。
Earth's internal heat warms underground water into hot water or steam, which can heat buildings directly or spin a turbine to generate power; it is steady but site-limited.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Twidell & Weir，《可再生能源资源》（第3版）
Twidell & Weir, 'Renewable Energy Resources' (3rd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#能源 #地热 #可再生
风力发电机的叶片长达上百米,它为什么是柔韧的?退役叶片去哪了?
Wind turbine blades stretch a hundred meters yet stay flexible — and where do retired ones go?
现代叶片是玻璃纤维或碳纤维复合材料制成的空心翼型,设计上刻意允许叶尖在大风中挠动数米:柔性卸载阵风弯矩,减轻根部载荷与重量。变桨系统实时转动全叶片改变攻角,在超过额定风速时主动泄功保护机组。麻烦在后半生:热固性复合材料无法像金属一样重熔,早期叶片多被切碎填埋,欧洲部分国家已经立法禁填埋。新方案包括机械回收做水泥添加料、热解回收纤维,以及新一代可回收环氧树脂——让叶片在服役二十五年后能整体拆解回炉。
Modern blades are hollow airfoils of glass or carbon fiber composites, deliberately flexible: tips bend meters in gusts to shed bending moments, slimming roots and mass. Pitch systems rotate blades to change angle of attack, spilling power above rated wind to protect the drivetrain. Retirement is the headache: thermoset composites cannot remelt like metal, early blades were shredded into landfill, and several European states now ban that. New routes grind blades into cement kiln feedstock, pyrolyze fibers back out, or build with recyclable epoxy so twenty-five-year-old blades can finally come apart cleanly.
难度 进阶 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录含书名，但缺版次 / 出版社 / 年份中的一部分，需编辑补全后才能做独立比对。
Liu 与 Barlow,《Wind turbine blade waste and circular economy》,Resources, Conservation and Recycling 第124卷,2017
P. Liu and C. Y. Barlow, Wind turbine blade waste and circular economy, Resources, Conservation and Recycling 124, 2017
#风电叶片 #复合材料回收 #变桨控制
大坝把水拦起来就能发电?抽水蓄能电站为什么晚上抽水白天发电?
Dams generate power from held water — why does pumped storage pump at night and generate by day?
水力发电利用水位落差推动水轮机。抽水蓄能电站更进一步:夜里电网用电少、电价低,就用多余电力把下库的水抽上高库存着;白天用电高峰放水下坡发电,像给城市配了一块巨型充电宝。它的转换效率约75%,看似亏本,实则解决了风、光发电看天吃饭的波动问题——储能是清洁能源的搭档。
Hydropower rides water falling through turbines. Pumped storage goes further: nights with cheap surplus power lift water uphill into reservoirs; daytime peaks release it down through generators — a giant power bank for cities. Efficiency near seventy-five percent sounds lossy but tames the on-again-off-again nature of wind and solar. Storage partners clean energy.
难度 进阶 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-10-03 · 2 条独立证据
来源 · Source
《十万个为什么》第六版能源与环境分册,少年儿童出版社,2013
Ten Thousand Whys: Energy and Environment volume, 6th ed., Juvenile and Children Publishing House, 2013
独立核验依据 · Independent verification: 核验依据 1 ISBN 978-7-5324-9328-9 · 核验依据 2 ISBN 9787532493289
#抽水蓄能 #水力发电 #电网调峰
太阳能板是怎么把阳光变成电的？
How does a solar panel turn sunlight into electricity?
面板里的半导体（通常是硅）吸收光子后把电子激发出来，形成可被导线收集的电流，这就是光伏发电。阳光越强、照到的面积越大，发出的电就越多。
The panel's semiconductor (usually silicon) absorbs photons that free electrons, forming a current collectable by wires—photovoltaic generation. More sunlight and area mean more electricity.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Luque & Hegedus，《光伏科学与技术手册》（第2版）
Luque & Hegedus, 'Handbook of Photovoltaic Science and Engineering' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL18449153W：Handbook of photovolta
#太阳能 #光伏 #半导体
水力发电站是怎样靠水流发电的？
How does a hydroelectric plant generate power from flowing water?
大坝把水抬高，放水时高处的水冲下带动水轮机旋转，水轮机连着发电机就发出电，相当于把水的落差变成电能。
A dam raises water, and as it falls it spins a turbine connected to a generator, turning the water's height difference into electricity.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Twidell & Weir，《可再生能源资源》（第3版）
Twidell & Weir, 'Renewable Energy Resources' (3rd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#能源 #水电 #水轮机
风车转那么慢，怎么发出电来？
The windmill turns so slowly—how does it make electricity?
风车叶片虽然转得慢，但连着很多级齿轮把转速放大，再带动发电机里的线圈快速切割磁力线产生电。叶片越大、风越强，发出的电就越多。
Though the blades turn slowly, gears multiply the speed to spin the generator's coils fast through magnetic fields to make electricity. Bigger blades and stronger wind mean more power.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Burton，《风能手册》（第2版）
Burton, 'Wind Energy Handbook' (2nd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL21606346W：Wind Energy Handbook（首
#风车 #发电机 #齿轮
屋顶光伏为什么要按当地纬度选一个倾角，朝向也不能随便定？
Why is a rooftop PV array tilted to a particular angle and aimed in a particular direction instead of laid flat?
组件发电量与阳光入射方向和板面法线夹角的余弦成正比，倾角大致取当地纬度时，全年正午前后的入射角最小、年发电量最高。北半球朝正南（南半球朝正北）能让上午与下午的出力曲线对称、峰值最大；朝东或朝西会削掉一部分峰值，但可以把发电挪到早晚用电高峰。若更看重冬季供电，可把倾角调大以迎合冬日太阳高度低的特点，平屋顶还要在倾角与阵列前后遮挡、积灰冲洗和抗风载荷之间折中。
Output scales with the cosine of the angle between sunlight and the module normal, so a tilt roughly equal to site latitude minimizes that angle around solar noon and maximizes annual yield. Facing true south in the northern hemisphere (true north in the southern) makes the morning and afternoon curve symmetric with the highest peak, while east or west orientations trade peak energy for output shifted toward morning or evening demand. A steeper tilt favours winter generation when the sun is low, and on flat roofs the chosen tilt must also balance inter-row shading, soiling washoff and wind loading.
难度 入门 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：著录仅给书名，无版次与年份；同一书名常对应多个版次，不臆测具体版本。
NREL《PVWatts Calculator》官方技术参考手册
NREL — 'PVWatts Calculator' official technical reference manual
#光伏系统 #倾角与朝向 #发电量
可再生能源和不可再生能源有什么不同？
What is the difference between renewable and non-renewable energy?
可再生能源如阳光、风、水，用不完、会自然补充；不可再生能源如煤、石油、天然气，是几亿年形成的，用一点少一点。
Renewable sources like sun, wind and water replenish naturally and won't run out, while non-renewable coal, oil and gas took millions of years to form and deplete as we use them.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Twidell & Weir，《可再生能源资源》（第3版）
Twidell & Weir, 'Renewable Energy Resources' (3rd ed.)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#能源 #可再生 #不可再生
家用太阳能板后面那个盒子（逆变器）是干嘛的？
What is that box behind home solar panels?
光伏发的是直流电，家里电器用交流，逆变器把直流变成合规交流电并跟踪最大功率点，多余的可上网。
Panels make DC but homes use AC; the inverter converts it, tracks maximum power, and feeds surplus to the grid.
难度 入门 · 适合 大众
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：此条未指向带版次的可引用著作（通识性内容、机构文件或未展开的英文书名），本库不提供独立书目出处；如需精确引用，需由编辑补全具体篇目与版次。
NREL 光伏系统手册；IEC 62109（逆变器）
NREL PV systems handbook; IEC 62109 (inverters)
#逆变器 #直流 #交流
变电站为什么通常围起来、还写着高压危险？
Why are substations fenced off and marked high voltage?
里面设备电压极高，误入会触电或被电弧灼伤；围栏和标识既防人畜进入，也减少电磁暴露和外力破坏。
Equipment carries lethal voltage; fences and signs keep people out to prevent electrocution, arcs, and interference.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
NREL 美国国家可再生能源实验室；Twidell & Weir《可再生能源资源》；IAEA 核安全标准
NREL (National Renewable Energy Laboratory); Twidell & Weir, Renewable Energy Resources; IAEA Safety Standards
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL5479870W：Renewable energy resour
#变电站 #高压 #围栏