quantity of heat
- quantity of heat的基本解释
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热量
- 相似词
- 更多 网络例句 与quantity of heat相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on a computing model of floor heating residences, indoor thermal environment and heat distribution under the effect of heat charge/discharge, operation control and solar radiation has been concluded. Concept and formula of equivalent heat supply has been put forward which indicate that actual heat supply will be equal to the sum of design heat supply and equivalent heat supply. Recommend coefficient has been given taken Dalian as an example. Computed according to the new method, design heat supply can be reduced to 37% in cloudy day and 43.3% in sunny day, energy saving effect is very obvious. In Tromb wall solar house, effect of concrete wall on indoor temperature swing and attenuation of temperature wave is very obvious. While the outdoor air-temperature swing exceeds 10℃, indoor air-temperature swing belows 3℃. In the experiment, maximal difference in temperature between inner surface and outer surface of the 300mm wall exceeded 10℃. Heat storage and collector efficiency varies adversely according to solar radiation. Factors such as thickness, material, absorptance of the wall and permeation of the glass cover all have big influence on heat storage and collector efficiency. There exsisted an optimal thickness of the wall, which can make the best of heat storage and collector efficiency. Most of the heat stored in conventional Trombe wall during the daytime has been lost to the outside at night without heat preservation. Heat preservation on the outside surface of the wall has effectively improved heat release performance of the wall at night, heat supply to the room has increased too.
通过建立的地板采暖系统动态热性能分析模型,得出了在蓄放热特性、运行方式和太阳辐射等因素耦合作用下的室内热环境及热量分配比例,提出了等效供热量的概念及计算公式,指出实际所需供热量应等于设计供热量加上等效供热量,并以大连为例,给出了等效供热量的修正系数,以新方法计算,阴天可减少设计供热量37%,晴天最大可以减少设计供热量43.3%,节能效果显著;集热蓄热墙式太阳房中,混凝土蓄热墙的室温均一化效果和对温度波的削减作用非常明显,当室外温度波动最大幅度超过10℃时,室温波幅不超过3℃,实验中300mm厚墙体内外表面温差超过10℃;墙体蓄热效率与集热效率随太阳辐射照度的变化呈相反的变化趋势;墙体厚度、材料、表面吸收率以及盖板透过率等因素对集热和蓄热效率均有较大的影响,存在一个最佳的墙体厚度值,使得墙体集热和蓄热综合性能最优;传统的蓄热墙夜间没有外保温,辐射散热损失很大,研究表明墙体外保温方式明显改善了蓄热墙夜间的散热性能,增加了向室内的供热量。
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The method of CFD numerical simulation is employed to replace experimental investigation. Hence, STAR-CD of the commercial software is used to simulate the outer flow field and heat transfer performance of integrated heat sink with heat pipes cooled by airflow. It is found that simulated results agree with experimental results well, which indicates that simulation method is reasonable and reliable. Further, simulated computations for different fin thickness, fin pitches and air velocities are performed to analyze their effects on heat transfer performance of heat sink. Finally, a new optimized structure of integrated heat sink with heat pipes is provided to meet future demands for cooling CPU and its heat transfer is also evaluated. For multi-heat source and higher dissipation power of electronic devices, the integrated heat sink with heat pipes attatched fins stagged in different positions of channels is presented and its flow and temperature fields are also simulated to enhance heat transfer. As a conclusion, all mentioned above are useful for the design of heat sink with excellent efficiency of heat dissipation and further research.
应用商业软件Star-CD对CPU集成热管散热器的外部流场和传热特性进行了数值模拟,将数值模拟结果和试验结果对比,验证了所提出的数值计算方法是可靠和可行的;利用此数值模拟方法对CPU集成热管散热器在不同散热翅片间距、厚度和气流速度下散热器的流动与传热性能进行了数值计算,分析了这些参数的变化对散热器传热性能的影响;针对未来CPU冷却的要求,确定了与最优气体流速匹配的最佳翅片间距、厚度的CPU集成热管散热器的新结构;利用试验评测了根据数值模拟提供的新结构开发出的新CPU集成热管散热器的传热性能;最后在场协同强化传热的理论的基础上,对CPU集成热管散热器的散热翅片错位排列来强化散热器的散热,满足未来大功率、多热源的电子元件的散热,为今后进一步优化散热器提供了依据。
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In this paper, model experiment research was carried, of which was based upon the forced settlement and rectification measure of some buildings on self-weight collapse loess area. At the same time, some conclusions are drawn: 1 the relationship between the soil stress deliquesce and quantity of slope, quantity of settlement of buildings and stress variety of soil body; 2 the relationship between the superimposed stress and quantity of slope, quantity of settlement of buildings and stress variety of soil body; 3 the relationship between quantity of slope, quantity of settlement of buildings and water injection quantity in hole; 4 the relationship between quantity of slope, quantity of settlement of buildings and diameter and interval of hole; 5 the relationship between stress variety of soil body and water injection quantity in hole and interval of hole.
本论文针对地处自重湿陷性黄土地区的建筑物和构筑物的迫降纠倾进行了模型试验研究,给出了自重湿陷性黄土地区建筑物迫降纠倾时1地基应力解除、附加应力与建筑物倾斜量、沉降量及土体应力变化的关系;2附加应力与建筑物倾斜量、沉降量及土体应力变化的关系;3建筑物倾斜量、沉降量与孔内注水量的关系;4建筑物倾斜量、沉降量与孔径和孔间距的关系;5土体应力变化与孔内注水量、孔直径的关系。
- 更多网络解释 与quantity of heat相关的网络解释 [注:此内容来源于网络,仅供参考]
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entire quantity:整个数量 total quantity 总量
minimum quantity 最小数量 small quantity 小量 | entire quantity 整个数量 total quantity 总量 | further quantity 更多的数量
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sizable quantity:大数量
full quantity; whole quantity; entire quantity 总数 | fair; large; great; considerable; sizable quantity 大数量 | sufficient quantity 数量充足
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He ate a small quantity of rice:他吃了少量的米饭. a great quantity 大量
Mathematics is the science of pure quantity. 数学是纯粹研究数量的科学. | He ate a small quantity of rice. 他吃了少量的米饭. a great quantity 大量 | 38. serve as 作为; 当作