Related Experiment Video
Updated: Jul 28, 2025
09:19
In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for CuIn,GaSe2 Solar Cells
Published on: October 3, 2018
8.4K
PCM-based hybrid thermal management system for photovoltaic modules: A comparative analysis
Ravita Lamba1, Francisco Javier Montero2,3, Tauseef-Ur Rehman4
1Department of Electrical Engineering, Malaviya National Institute of Technology Jaipur, Malaviya Nagar, Jaipur, 302017, Rajasthan, India.
Summary
Integrating heat sinks, phase change materials (PCMs), and radiative cooling (RC) significantly enhances photovoltaic (PV) module performance. This study demonstrates optimal PV temperature regulation for improved energy output, particularly in harsh environments.
Area of Science:
- Renewable Energy Systems
- Thermal Management
- Materials Science
Background:
- Photovoltaic (PV) module performance is highly sensitive to operating temperature.
- Effective thermal management is crucial for maximizing solar energy conversion efficiency.
- Phase Change Materials (PCMs) and Radiative Cooling (RC) offer passive cooling solutions.
Purpose of the Study:
- To investigate the integrated performance of heat sinks (HS), PCMs, and RC for PV modules.
- To achieve low and uniform temperature distribution in PV modules under high solar radiation.
- To identify optimal PV cooling strategies for enhanced energy generation.
Main Methods:
- Development and analysis of a comprehensive 2-D model using the finite element method in COMSOL-Multiphysics.
- Simulation of eight different combinations of HS, PCM, and RC integrated with PV modules.
- Performance evaluation under the climatic conditions of the Atacama Desert.
Main Results:
- A combined heat sink and radiative cooling system achieved the maximum reduction in PV temperature (22 °C).
- This configuration also yielded the highest increase in PV power (152 W) and minimal efficiency drop (14%).
- The study analyzed the impact of PCM height, ambient temperature, wind velocity, and solar radiation.
Conclusions:
- Integrated thermal management systems, particularly HS and RC, significantly improve PV module performance.
- The selection of PCM should be based on specific environmental conditions for optimal results.
- Findings provide valuable insights for selecting the most effective PV cooling method.
Related Concept Videos
01:09Thermal Stress
2.5K
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
2.5K
01:27Thermal expansion and Thermal stress: Problem Solving
1.2K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in...
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in...
1.2K
01:20Mechanisms of Heat Transfer II
3.3K
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...
3.3K
01:19Mechanism of heat transfer
1.3K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.3K
01:14Mechanisms of Heat Transfer
379
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...
379
01:14Mechanisms of Heat Transfer I
4.4K
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.
4.4K