The diagrams show the structure of solar panel and its use

The figures illustrate the components of a solar panel and its function.

There are three parts making up the solar panel. The solar panel has different structures to heat air and water.

Basically, the solar panel consists of a box with a transparent top and two pipes as inlet and outlet. When it is used to heat air, cool air come into the box through the inlet and sun rays travel across the transparent top, providing energy to heat the air. Then warm air goes out through the outlet.

When the solar panel works to heat water, a water pipe need to be installed in the box to connect the inlet and outlet as well as hold water. After cool water reaches the water pipe, the sun rays heat up the air in the box and then the water pipe get heated by the air. In this way, the water in the pipe can be heated quickly owing to full contact with the hot air. In the end, warm water comes out of the outlet as well.

Votes
Average: 6.7 (1 vote)
Essays by the user:

Transition Words or Phrases used:
if, so, then, well, as well as

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 4.0 7.0 57% => More to be verbs wanted.
Auxiliary verbs: 2.0 1.00243902439 200% => OK
Conjunction : 7.0 6.8 103% => OK
Relative clauses : 2.0 3.15609756098 63% => OK
Pronoun: 3.0 5.60731707317 54% => OK
Preposition: 26.0 33.7804878049 77% => OK
Nominalization: 1.0 3.97073170732 25% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 748.0 965.302439024 77% => OK
No of words: 177.0 196.424390244 90% => More content wanted.
Chars per words: 4.22598870056 4.92477711251 86% => OK
Fourth root words length: 3.64748333727 3.73543355544 98% => OK
Word Length SD: 1.99176381953 2.65546596893 75% => OK
Unique words: 86.0 106.607317073 81% => More unique words wanted.
Unique words percentage: 0.485875706215 0.547539520022 89% => More unique words wanted or less content wanted.
syllable_count: 225.9 283.868780488 80% => OK
avg_syllables_per_word: 1.3 1.45097560976 90% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 1.53170731707 0% => OK
Article: 6.0 4.33902439024 138% => OK
Subordination: 3.0 1.07073170732 280% => Less adverbial clause wanted.
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 3.0 3.36585365854 89% => OK

Performance on sentences:
How many sentences: 10.0 8.94146341463 112% => OK
Sentence length: 17.0 22.4926829268 76% => The Avg. Sentence Length is relatively short.
Sentence length SD: 38.3678250622 43.030603864 89% => OK
Chars per sentence: 74.8 112.824112599 66% => OK
Words per sentence: 17.7 22.9334400587 77% => OK
Discourse Markers: 3.0 5.23603664747 57% => More transition words/phrases wanted.
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 6.0 3.70975609756 162% => OK
Sentences with negative sentiment : 0.0 1.13902439024 0% => More negative sentences wanted.
Sentences with neutral sentiment: 4.0 4.09268292683 98% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.158427125201 0.215688989381 73% => OK
Sentence topic coherence: 0.0982500616499 0.103423049105 95% => OK
Sentence topic coherence SD: 0.106406377643 0.0843802449381 126% => OK
Paragraph topic coherence: 0.173367483552 0.15604864568 111% => OK
Paragraph topic coherence SD: 0.117881210483 0.0819641961636 144% => OK

Essay readability:
automated_readability_index: 7.3 13.2329268293 55% => Automated_readability_index is low.
flesch_reading_ease: 79.6 61.2550243902 130% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 6.4 10.3012195122 62% => OK
coleman_liau_index: 6.96 11.4140731707 61% => OK
dale_chall_readability_score: 6.8 8.06136585366 84% => OK
difficult_words: 26.0 40.7170731707 64% => More difficult words wanted.
linsear_write_formula: 6.0 11.4329268293 52% => Linsear_write_formula is low.
gunning_fog: 8.8 10.9970731707 80% => OK
text_standard: 7.0 11.0658536585 63% => The average readability is low. Need to imporve the language.
What are above readability scores?

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Rates: 67.4157303371 out of 100
Scores by essay e-grader: 6.0 Out of 9
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.