Process Diagram

Band 6+: Write about the following topic: The diagram below shows a possible future means of home energy production. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

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Image for topic: Write about the following topic: The diagram below shows a possible future means of home energy production. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.

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The image depicts a system for generating electricity using compost. It illustrates a process starting with a steel tank filled three-quarters with compost material like leaves, food scraps, and water, which ferments to produce methane gas. The gas outflows to a methane gas storage which is connected to a compressor that outputs compressed gas. This compressed gas supplies a combustion engine, creating mechanical energy, which powers a generator to produce electrical energy. Finally, this electrical energy is stored in a battery for use in home electricity consumption.

Given the complexity of the image, the above description may not be entirely accurate.

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Note: Both the topic and the answer were created by one of our users.

The provided image explains how, in a possible future, it will possible to produce electricty at home. Thanks to few machines and using everyday biological scraps, everyone will be able to produce green energy.

First of all, fill a steel tank up to 75% with compost and the residual part with water. The compost can be obtained from everyday scraps, scuch as food, leaves and other biological unused materials. Then, make the solution ferment in the tank in order to produce methane gas. Methane will first be stored and then the gas will be compressed thanks to a compressor.

The compressed gas will be used as an input to produce mechanical energy, thanks to a combustion engine. Mechanical energy can be transformed into electricity with a generator, and then it can either stored in batteries for future use, or it can be directly used.

Word Count: 144

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Overall Band Score

6.5

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

produce: 4

thanks: 3

Try using synonyms for the above words

Task Response

The report covers the main aspects of the diagram and provides a generally clear description of the process. To improve, focus on enhancing the structure and flow of the report. Consider using more cohesive devices to link ideas and paragraphs more effectively. Also, ensure that the summary includes all the key stages and components of the system, and that the relationships between them are clearly explained. The report falls short of the required 150 words.

Coherence & Cohesion

The report is generally coherent and logically organized, with a clear progression from the input materials to the final electricity production. However, the introduction could be more concise and directly address the main features of the diagram. Transitions between steps are mostly clear, but could be enhanced with more varied cohesive devices to improve the flow. For example, using phrases like 'Following this,' or 'Subsequently,' could strengthen the connections between the stages of the process.

Lexical Resource

The report uses adequate vocabulary to describe the process, but there's room for improvement in terms of precision and sophistication. Consider using more specific terms related to energy production and mechanical processes. For instance, instead of 'make the solution ferment,' you could use 'allow the mixture to undergo anaerobic digestion.' Varying your word choice and incorporating more technical vocabulary would enhance the lexical resource.

Grammatical Range & Accuracy

The report demonstrates a reasonable command of grammar, but there are noticeable errors that affect clarity. For example, 'it will possible to produce electricty' should be 'it will be possible to produce electricity,' and 'scuch as' should be 'such as.' Pay closer attention to subject-verb agreement, article usage, and correct spelling. Proofreading carefully and focusing on sentence structure will improve grammatical accuracy.

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