Bên cạnh Phân tích bài essay về "The number of visitors in the UK" IELTS WRITING TASK 1 (table), IELTS TUTOR hướng dẫn Phân tích đề"The diagram shows how energy is produced from coal"IELTS WRITING

The diagram shows how energy is produced from coal.

IELTS TUTOR lưu ý:

• Overall:
  • Energy production involves the combination of coal and oxygen undergoing various chemical processes including heating that result in gases that then power two different types of turbines to produce electricity (HOẶC: The electricity that is produced from coal undergoes a purification stage to clean the harmful substances and the energy is produced on site with the help of a gas or steam turbine)  >> IELTS  TUTOR  hướng  dẫn  Diễn đạt "trải qua giai đoạn..." (Cách paraphrase "undergo")
• Body 1: The first way that elecrtricity is created.
  • Coal is transported by ramp to a furnace where it is heated and combined with oxygen. 
  • The waste byproduct of this is slag, and the desired gas (raw syngas) is then sent for removal of its harmful contaminants, CO2, mercury, and sulphur before the purified gas is used to run a gas turbine connected to a generator.   >> IELTS  TUTOR  hướng  dẫn  Cách dùng động từ "waste" tiếng anh 
• Body 2: The second way that elecrtricity is created. 
  • The gas turbine using the purified syngas also produces excess hot gases  >> IELTS  TUTOR  hướng  dẫn  Cách dùng từ "PRODUCTION" tiếng anh
  • These are utilised in a heat recovery steam generator (which releases flue gases into the atmosphere). 
  • The generator produces steam which turns the turbines of a steam turbine to generate additional electricity.

IELTS TUTOR gợi ý bài tham khảo:

The diagram illustrates the multi-stage procedure through which electricity is generated from coal. Overall, the production of energy relies on a series of interlinked (connected; liên kết chặt chẽ) chemical and mechanical stages that convert raw coal into refined (purified; tinh chế) gas, which subsequently powers two different turbines.>> Form đăng kí giải đề thi thật IELTS 4 kĩ năng kèm bài giải bộ đề 100 đề PART 2 IELTS SPEAKING quý đang thi (update hàng tuần) từ IELTS TUTOR

Initially, coal is moved via a ramp into a furnace, where it is heated and combined with oxygen in a high-temperature (very hot; nhiệt độ cao) environment. This reaction yields slag (solid waste; chất thải rắn) and raw syngas. The latter then passes through a purification unit that removes harmful contaminants such as CO₂, mercury, and sulphur. Once cleaned, the treated (processed; đã xử lý) gas drives a gas turbine that is linked to a generator to produce electricity.

In the second pathway, the gas turbine releases excessive (more than needed; dư thừa) hot gases, which are channelled into a heat recovery steam generator. This device produces steam to power a steam turbine, creating an additional (extra; bổ sung) source of electricity.

NEW VOCABULARY LIST

1. interlinked (connected; liên kết chặt chẽ)

• Synonyms: interconnected, unified, intertwined

• Antonyms: separate, isolated, independent

• IELTS TUTOR xét ví dụ: “a series of interlinked chemical and mechanical stages”

2. refined (purified; tinh chế)

• Synonyms: processed, filtered, cleansed

• Antonyms: raw, impure, contaminated

• IELTS TUTOR xét ví dụ: “convert raw coal into refined gas”

3. high-temperature (very hot; nhiệt độ cao)

• Synonyms: heated, scorching, intense-heat

• Antonyms: low-temperature, cool, mild

• IELTS TUTOR xét ví dụ: “combined with oxygen in a high-temperature environment”

4. slag (solid waste; chất thải rắn)

• Synonyms: residue, by-product, debris

• Antonyms: fuel, resource, input

• IELTS TUTOR xét ví dụ: “This reaction yields slag and raw syngas”

5. treated (processed; đã xử lý)

• Synonyms: purified, conditioned, refined

• Antonyms: untreated, unprocessed, raw

• IELTS TUTOR xét ví dụ: “the treated gas drives a gas turbine”

6. excessive (more than needed; dư thừa)

• Synonyms: extra, surplus, abundant

• Antonyms: insufficient, minimal, scarce

• IELTS TUTOR xét ví dụ: “releases excessive hot gases”

7. additional (extra; bổ sung)

• Synonyms: supplementary, further, added

• Antonyms: primary, sole, only

• IELTS TUTOR xét ví dụ: “creating an additional source of electricity”

DIFFICULT GRAMMAR STRUCTURES USED

1. Reduced relative clause

• “the gas turbine using the purified syngas”
  → (full form: the gas turbine that uses the purified syngas)

• Vietnamese: Mệnh đề quan hệ rút gọn.

2. Complex noun phrases

• “a series of interlinked chemical and mechanical stages”

• Vietnamese: Cụm danh từ dài, mang tính học thuật.

3. Passive structures

• “coal is moved via a ramp”

• “raw syngas is then sent for removal”

4. Causative sequence expression

• “which subsequently powers two different turbines”

• Vietnamese: Mệnh đề quan hệ chỉ kết quả tiếp theo.

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