heat equivalent

简明释义

热当量

英英释义

例句

1.When calculating the heat equivalent 热当量 of different fuels, it's important to consider their combustion efficiency.

在计算不同燃料的热当量时，考虑它们的燃烧效率非常重要。

2.The energy produced by burning one liter of gasoline is approximately 31,536,000 joules, which is a significant amount of heat equivalent 热当量.

燃烧一升汽油产生的能量大约是31,536,000焦耳，这是一种显著的热当量。

3.A standard light bulb consumes about 60 watts of power, which translates to a heat equivalent 热当量 of 0.06 kilowatt-hours per hour.

标准灯泡消耗大约60瓦的电力，这相当于每小时0.06千瓦时的热当量。

4.The heat equivalent 热当量 of food calories can be used to determine how much energy we get from our meals.

食物卡路里的热当量可以用来确定我们从餐点中获得多少能量。

5.In terms of heat equivalent 热当量, one kilogram of coal can produce enough energy to heat a small room for hours.

就热当量而言，一公斤煤可以产生足够的能量来加热一个小房间数小时。

作文

In the field of thermodynamics, the concept of heat equivalent is pivotal for understanding energy transfer and conversion processes. The term refers to the amount of heat required to produce an equivalent effect in a system. Essentially, it provides a way to quantify energy in terms of heat, making it easier to analyze various physical and chemical processes. For instance, when we consider the combustion of fuel, the heat equivalent helps us determine how much energy is released during the reaction, allowing engineers to design more efficient engines and power plants.The significance of heat equivalent extends beyond just mechanical applications. In biological systems, understanding the heat equivalent can help researchers comprehend metabolic rates and energy expenditure in living organisms. For example, when studying how animals regulate their body temperature, scientists often measure the heat equivalent of food consumed to understand how much energy is available for maintaining homeostasis.Moreover, the concept plays a crucial role in environmental science. As we tackle climate change, knowing the heat equivalent of different energy sources allows policymakers to make informed decisions about which fuels to promote or phase out. Renewable energy sources like wind and solar have different heat equivalent values compared to fossil fuels, and this information is vital in transitioning to a more sustainable energy future.In practical applications, the heat equivalent is often calculated using specific heat capacities, which indicate how much heat is needed to change the temperature of a substance. For example, water has a high specific heat capacity, meaning it can absorb a lot of heat before its temperature rises significantly. This property is exploited in various industries, including food processing and climate control systems, where managing temperature is crucial.Furthermore, the heat equivalent concept is integral to the study of phase changes, such as melting and boiling. When a solid turns into a liquid or a liquid into a gas, energy is absorbed or released, which can be quantified using the heat equivalent. Understanding these processes is essential in fields ranging from meteorology to materials science, where the behavior of substances under different temperature conditions must be predicted.In conclusion, the concept of heat equivalent is a fundamental principle that permeates various scientific disciplines. It provides a framework for understanding energy interactions in both natural and engineered systems. As we continue to explore new technologies and address global challenges, the heat equivalent will remain a critical tool in our quest for knowledge and innovation. By mastering this concept, students and professionals alike can contribute to advancements in energy efficiency, environmental sustainability, and our overall understanding of the physical world.

在热力学领域，热当量的概念对于理解能量转移和转换过程至关重要。这个术语指的是在一个系统中产生等效效果所需的热量。基本上，它提供了一种以热量量化能量的方法，使得分析各种物理和化学过程变得更加容易。例如，当我们考虑燃料的燃烧时，热当量帮助我们确定反应过程中释放了多少能量，从而使工程师能够设计出更高效的发动机和发电厂。热当量的重要性不仅仅局限于机械应用。在生物系统中，理解热当量可以帮助研究人员理解生物体的代谢率和能量消耗。例如，在研究动物如何调节体温时，科学家们通常会测量食物摄入的热当量，以了解维持体内平衡所需的能量。此外，这一概念在环境科学中也起着至关重要的作用。在应对气候变化时，了解不同能源的热当量使政策制定者能够就促进或淘汰哪些燃料做出明智的决策。可再生能源如风能和太阳能与化石燃料相比具有不同的热当量值，而这些信息在向更可持续的能源未来过渡时至关重要。在实际应用中，热当量通常通过比热容来计算，比热容表示改变物质温度所需的热量。例如，水具有较高的比热容，这意味着它在温度显著上升之前可以吸收大量热量。这一特性在食品加工和气候控制系统等各个行业中得到了利用，在这些行业中，温度管理至关重要。此外，热当量概念是相变研究的核心，例如熔化和蒸发。当固体变成液体或液体变成气体时，能量被吸收或释放，这可以通过热当量进行量化。理解这些过程在气象学到材料科学等领域至关重要，因为必须预测物质在不同温度条件下的行为。总之，热当量的概念是一个基本原理，渗透到多个科学学科中。它为理解自然和工程系统中的能量互动提供了框架。随着我们继续探索新技术并应对全球挑战，热当量将继续成为我们追求知识和创新的关键工具。通过掌握这一概念，学生和专业人士都可以为提高能效、推动环境可持续性以及加深我们对物理世界的整体理解做出贡献。