watt hour

简明释义

瓦时

英英释义

例句

1.To charge an electric vehicle, you need at least 40 watt hour（瓦时） per mile.

给电动车充电，每英里至少需要40 watt hour（瓦时）。

2.This appliance consumes 150 watt hour（瓦时） when in use.

这个电器在使用时消耗150 watt hour（瓦时）。

3.The battery can store up to 2000 watt hour（瓦时） of energy.

这个电池可以储存高达2000 watt hour（瓦时）的能量。

4.Our solar panels generate about 300 watt hour（瓦时） of electricity daily.

我们的太阳能电池板每天产生大约300 watt hour（瓦时）的电力。

5.A typical laptop uses around 50 watt hour（瓦时） of power during a full charge.

一台典型的笔记本电脑在充满电时大约使用50 watt hour（瓦时）的电力。

作文

The concept of energy consumption is crucial in our modern world, where electricity powers everything from our homes to our vehicles. One of the key measurements used to quantify electrical energy is the watt hour, which represents the amount of energy consumed when one watt of power is used for one hour. Understanding this unit is essential for both consumers and producers of energy, as it helps in making informed decisions about energy usage and costs. To delve deeper into the significance of the watt hour, consider how we utilize electricity daily. For instance, a standard light bulb uses about 60 watts of power. If you leave this light bulb on for ten hours, it consumes 600 watt hours of energy. This calculation is straightforward: multiply the power rating of the bulb (60 watts) by the time it is used (10 hours). This simple math illustrates how quickly energy can accumulate, leading to higher electricity bills if not monitored carefully.Moreover, the watt hour is not just a theoretical concept; it has practical implications in various sectors. In renewable energy, for example, solar panels are often rated based on their output in watt hours. A solar panel that produces 300 watts can generate 300 watt hours of electricity in one hour under optimal conditions. This information is vital for homeowners considering solar energy, as it allows them to estimate how much energy they can produce and subsequently save on their utility bills.In the context of electric vehicles (EVs), understanding watt hours is equally important. EV batteries are typically rated in kilowatt hours (kWh), where one kWh equals 1,000 watt hours. For example, if an electric vehicle has a 60 kWh battery, it can theoretically provide 60,000 watt hours of energy. This measurement helps consumers determine the range of their vehicle and how often they need to charge it. As more people transition to electric vehicles, the importance of understanding watt hours will only grow.Additionally, energy efficiency ratings for appliances often use watt hours to indicate how much energy they consume. For instance, an energy-efficient refrigerator may use 400 watt hours per day, while a less efficient model might consume 800 watt hours. By comparing these figures, consumers can make better choices when purchasing appliances, ultimately leading to lower energy consumption and reduced environmental impact.In conclusion, the watt hour is a fundamental unit of measurement that plays a significant role in our understanding of energy consumption. Whether it’s calculating the energy used by household appliances, estimating solar panel output, or determining the range of electric vehicles, grasping the concept of watt hours empowers individuals to make smarter energy choices. As we move towards a more energy-conscious society, familiarity with this unit will be increasingly important in promoting sustainability and reducing energy costs.

能量消耗的概念在我们现代世界中至关重要，电力为从我们的家到我们的车辆的一切提供动力。用于量化电能的关键测量单位之一是watt hour，它表示在一瓦特功率使用一个小时时消耗的能量。理解这个单位对能源的消费者和生产者都是必不可少的，因为它有助于做出关于能源使用和成本的明智决策。为了更深入地了解watt hour的重要性，考虑一下我们每天如何利用电力。例如，一个标准的灯泡大约使用60瓦特的功率。如果你将这个灯泡开着十个小时，它将消耗600watt hours的能量。这个计算很简单：将灯泡的功率（60瓦特）乘以它的使用时间（10小时）。这个简单的数学计算说明了能量如何迅速累积，如果不加以监控，可能导致更高的电费账单。此外，watt hour不仅仅是一个理论概念；它在各个领域都有实际的意义。在可再生能源中，例如，太阳能电池板通常根据其输出的watt hours进行评级。一个输出300瓦特的太阳能电池板在最佳条件下可以在一个小时内产生300watt hours的电力。这些信息对于考虑太阳能的房主至关重要，因为它使他们能够估计自己可以产生多少能量，从而节省公用事业费用。在电动汽车（EV）的背景下，理解watt hours同样重要。电动汽车的电池通常以千瓦时（kWh）来衡量，其中1 kWh等于1,000watt hours。例如，如果一辆电动汽车的电池容量为60 kWh，它理论上可以提供60,000watt hours的能量。这一测量帮助消费者确定其车辆的续航里程以及需要充电的频率。随着越来越多的人转向电动汽车，理解watt hours的重要性将只会增加。此外，家电的能效评级通常使用watt hours来指示它们消耗的能量。例如，一个节能冰箱每天可能消耗400watt hours，而一个效率较低的型号可能消耗800watt hours。通过比较这些数字，消费者可以在购买家电时做出更好的选择，从而最终降低能量消耗并减少对环境的影响。总之，watt hour是一个基本的测量单位，在我们理解能量消耗方面发挥着重要作用。无论是计算家用电器的能量使用、估算太阳能电池板的输出，还是确定电动汽车的续航里程，掌握watt hours的概念使个人能够做出更明智的能源选择。随着我们朝着更加注重能源的社会迈进，熟悉这一单位在促进可持续发展和降低能源成本方面将变得越来越重要。