开放逆流热源塔式热系统在高湿度气候中的冷却和加热季节性能:实验和数值研究
Xinhao Liu1, Peng Liu1, Dinggao Xiao2
1School of Civil Engineering, Guizhou University, Guiyang, China.
PloS one
|February 17, 2026
概括
这项研究表明,热源塔式热 (HTHP) 系统在高湿度气候下全年表现良好. 优化输入空气和溶液温度可以提高冷却和加热季节的效率.
科学领域:
- 热力学是一种热力学.
- 热传递热量转移的方法
- 暖通空调系统系统HVAC系统
背景情况:
- 热源塔热 (HTHP) 系统对于气候控制至关重要.
- 了解高湿度地区全年性能对于能源效率至关重要.
研究的目的:
- 为了研究一个开放的反流HTHP系统的冷却和加热季节性能.
- 分析各种参数对热量和质量转移的影响.
- 评估系统在高湿度气候下全年运行效率.
主要方法:
- 开放逆流HTHP系统的综合实验和数值研究.
- 用夏季和冬季条件测量数据验证热量和质量传递模型.
- 分析进气温度,水温度和质量流速对系统性能的影响.
主要成果:
- 夏季入口空气温度的增加增强了潜在热传递,但减少了感应热传递.
- 调整水温在夏季显著影响潜伏和感应热比率.
- 冬季表现显示,通过更高的进气温度,感应热传递增强,但潜在热传递减少.
- 吸入空气的湿度比对传热有季节性影响.
- 增加的溶液质量流速改善了两个季节的总热传递.
- 运行测试显示性能系数 (COP) 在2.43-3.23 (一月) 和3.8-5.0 (六月) 之间.
- 绩效指标包括3.06的HSPF,4.3的SEER和3.62.6的APF.
结论:
- 在高湿度气候中,HTHP系统在全年表现良好.
- 这些发现为优化贵州等地区的HTHP应用提供了宝贵的指导.
- 系统效率对操作参数敏感,需要仔细控制以实现最佳的节能.
更多相关视频
07:32Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns
Published on: April 10, 2017
9.4K
10:36Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
Published on: November 3, 2023
2.2K
相关概念视频
01:07Refrigerators and Heat Pumps
3.1K
Refrigerators or heat pumps are heat engines operating in a reverse direction. For a refrigerator, the focus is on removing heat from a specific area, whereas, for a heat pump, the focus is on dumping heat into one particular area. A refrigerator (or heat pump) absorbs heat Qc from the cold reservoir at Kelvin temperature Tc and discards heat Qh to the hot reservoir at Kelvin temperature Th, while work W is done on the engine’s working substance.
A household refrigerator removes heat from...
A household refrigerator removes heat from...
3.1K
02:44Heating and Cooling Curves
28.2K
When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
28.2K
01:20Mechanisms of Heat Transfer II
4.6K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
4.6K
01:14Mechanisms of Heat Transfer I
6.3K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
6.3K
01:14Mechanisms of Heat Transfer
1.8K
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
1.8K
01:12Heat Flow and Specific Heat
6.9K
Heat is a type of energy transfer that is caused by a temperature difference, and it can change the temperature of an object. Since heat is a form of energy, its SI unit is the joule (J). Another common unit of energy often used for heat is the calorie (cal), which is defined as the energy needed to change the temperature of 1 g of water by 1 °C, specifically between 14.5 °C and 15.5 °C, since the energy needed shows a slight temperature dependence. Another commonly used unit is...
6.9K