Question
HOMEWORK 1
1. The gas from a wet gas reservoir is sent to a high-pressure (HP) separator. The liquid from the HP Separator is sent to a low-pressure pressure (LP) separator. The pressure required to send the gas from the separators to the point of sale, through a pipeline, at the contract rate of 25 MMcfd is 750 psia. The following information is also available:
HP Separator: P =500 psia, T =80OF, Gas Rate =25 MMcfd, Gas Gravity =0.60
LP Separator: P =100 psia, T = 70OF, Gas Rate =2.25 MMcfd, Gas Gravity =0.67

a. Size a reciprocating compressor (80% Efficiency) to send only the gas from the HP separator to the point of sale.
b. Size two reciprocating compressors (85% Efficiency) to send the gas from both the HP and LP separators to the point of sale at the contract rate.

2. A 2000-hp two-stage compressor unit with 85% Efficiency compresses 0.57- gravity natural gas from 200 psia at 80°F inlet condition to a discharge pressure of 1800 psia. Determine the capacity of this compressor at standard conditions of 60°F and 14.7 psia. Assume 4% pressure drop in the intercooler.

3. Calculate the centrifugal compressor horsepower required to handle the following operating conditions:
Inlet Temperature = 60°F Inlet Pressure = 20 psia
Discharge Pressure=100 psia Flow Rate = 95 MMcfd
Gas Gravity = 0.6
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        Backtrace
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        Backtrace
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        • 18. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
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        1.32mstwenty4_siteHomeworkLibraryController.php#97
        Backtrace
        • 21. app/Http/Controllers/HomeworkLibraryController.php:97
        • 22. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 23. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
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        1.27mstwenty4_siteHomeworkLibraryController.php#97
        Backtrace
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        • 22. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 23. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
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        Backtrace
        • 20. app/Models/HomeworkLibrary/HomeworkLibrary.php:201
        • 26. app/Http/Controllers/HomeworkLibraryController.php:105
        • 27. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
        • 28. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
        • 29. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
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        Backtrace
        • 14. app/Repositories/HomeworkLibraryRepository.php:30
        • 15. vendor/laravel/framework/src/Illuminate/Cache/Repository.php:397
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        • 18. app/Repositories/HomeworkLibraryRepository.php:39
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      • select * from `subjects` where `subjects`.`id` in (356)
        1.25mstwenty4_siteHomeworkLibraryRepository.php#30
        Backtrace
        • 19. app/Repositories/HomeworkLibraryRepository.php:30
        • 20. vendor/laravel/framework/src/Illuminate/Cache/Repository.php:397
        • 21. vendor/laravel/framework/src/Illuminate/Cache/CacheManager.php:419
        • 23. app/Repositories/HomeworkLibraryRepository.php:39
        • 24. app/Http/Controllers/HomeworkLibraryController.php:139
      • select * from `solutionslibrary_files` where `solutionslibrary_files`.`solutionlib_id` = 64387 and `solutionslibrary_files`.`solutionlib_id` is not null and `publish` = 'question' order by `order` asc, `id` asc
        1.27mstwenty4_siteHomeworkLibrary.php#260
        Bindings
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        Backtrace
        • 15. app/Models/HomeworkLibrary/HomeworkLibrary.php:260
        • 16. app/Transformers/HomeworkLibrary/HomeworkLibraryTransformer.php:58
        • 19. vendor/league/fractal/src/TransformerAbstract.php:128
        • 20. vendor/league/fractal/src/TransformerAbstract.php:107
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        Backtrace
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        • 19. vendor/league/fractal/src/TransformerAbstract.php:128
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        Bindings
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        Backtrace
        • 15. app/Models/HomeworkLibrary/HomeworkLibrary.php:260
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