Air at 70°F and 1 atm is cooled at the rate of 100,000 to 20°F by refrigeration. ft³ hr If the heat is rejected to the surroundings at a temperature of 70°F, what is the minimum power requirement in hp?
Air at 70°F and 1 atm is cooled at the rate of 100,000 to 20°F by refrigeration. ft³ hr If the heat is rejected to the surroundings at a temperature of 70°F, what is the minimum power requirement in hp?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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![**Cooling of Air: Minimum Power Requirement Calculation**
1. **Scenario 1: Cooling Air in Fahrenheit**
- Air at 70°F and 1 atm is cooled at the rate of 100,000 ft³/hr to 20°F by refrigeration.
- If the heat is rejected to the surroundings at a temperature of 70°F, what is the minimum power requirement in horsepower (hp)?
_[Input box for answer]_
2. **Scenario 2: Cooling Air in Celsius**
- Air at 25°C and 1 atm is cooled at the rate of 3000 m³/hr to -8°C by refrigeration.
- For a surroundings temperature of 25°C, what is the minimum power requirement in kilowatts (kW)?
_[Input box for answer]_
These scenarios involve calculating the minimum power requirement using refrigeration. Understanding the principles of thermodynamics and refrigeration cycles will be essential to solve these problems.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fce92dfad-12e8-43a7-81b2-7e9ca428d529%2F1b1663f5-f2b3-42fe-8320-d7ddc590262d%2Fyfvfbc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Cooling of Air: Minimum Power Requirement Calculation**
1. **Scenario 1: Cooling Air in Fahrenheit**
- Air at 70°F and 1 atm is cooled at the rate of 100,000 ft³/hr to 20°F by refrigeration.
- If the heat is rejected to the surroundings at a temperature of 70°F, what is the minimum power requirement in horsepower (hp)?
_[Input box for answer]_
2. **Scenario 2: Cooling Air in Celsius**
- Air at 25°C and 1 atm is cooled at the rate of 3000 m³/hr to -8°C by refrigeration.
- For a surroundings temperature of 25°C, what is the minimum power requirement in kilowatts (kW)?
_[Input box for answer]_
These scenarios involve calculating the minimum power requirement using refrigeration. Understanding the principles of thermodynamics and refrigeration cycles will be essential to solve these problems.
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