ESSAY INFORMATION:
Written by: Xuân Phi
Supported by: Ex-BC Examiner
Question: The diagram show the structure of a solar panel and how it is use.
(IELTS Academic – Week 4, June 2025)
ANSWER (8.0+):
The diagrams present a detailed explanation of how a solar panel is built and how it functions. They illustrate the main parts of the system and demonstrate the process by which solar energy is utilized to produce either heated air or warm water.
Beginning with the first https://qaa.mu.edu.iq/ diagram, it outlines the physical structure of a standard solar panel. This includes a transparent glass cover fixed on the top surface, as well as an inlet and outlet pipe installed on opposite ends of the panel.
The second diagram describes how solar energy is absorbed and used to heat air. Sunlight passes through the transparent glass layer and warms the air that flows into the panel through the inlet pipe. As a result, the heated air exits the panel via the outlet pipe, creating a flow of warm air that can be used externally.
As for the third diagram, it illustrates the process of heating water using the same solar panel. Cold water enters through the inlet pipe and travels along an ‘S’-shaped pipe located inside the panel. When sunlight reaches the surface of the panel, the water inside the pipe absorbs thermal energy and then leaves the system through the outlet pipe as warm water, ready for practical use.
(Word count: 208)
WORD LIST
| ENGLISH | TIẾNG VIỆT |
| A detailed explanation | Một mô tả chi tiết |
| The physical structure | Cấu trúc vật lý |
| A standard solar panel | Một tấm pin năng lượng mặt trời tiêu chuẩn |
| A transparent glass cover | Một lớp kính trong suốt |
| The inlet pipe | Ống dẫn vào |
| The outlet pipe | Ống dẫn ra |
| Thermal energy | Băng lượng nhiệt |
| Practical use | Việc sử dụng thực tế |
