Self-Test C-1.19: Perform Heat Load Calculations
Complete Self-Test C-1.19 and check your answers.
- Define specific heat.
Answer:
- Define sensible heat.
Answer:
- Define latent heat.
Answer:
- Give the BTU values for the following:
- specific heat for ice [latex]\frac{\text{BTU}}{\text{lb.}}\text{°F}[/latex]
- specific heat for water [latex]\frac{\text{BTU}}{\text{lb.}}\text{°F}[/latex]
- specific heat for steam [latex]\frac{\text{BTU}}{\text{lb.}}\text{°F}[/latex]
- latent heat of fusion (water) [latex]\frac{\text{BTU}}{\text{lb.}}[/latex]
- latent heat of vaporization (water) [latex]\frac{\text{BTU}}{\text{lb.}}[/latex]
- How many BTUs are required to raise the temperature of 39 pounds of water at 47°F to water at 212°F?
Answer: BTU
- How many BTUs are required to raise the temperature of 17 lb. of ice at 3°F to water at 79°F?
Answer: BTU
- How many BTUs are required to raise the temperature of 23 imperial gallons of water at 150°F to steam at 225°F?
Answer: BTU
- How many BTUs are liberated when 183 pounds of steam are cooled from 250°F to –18°F ice?
Answer: BTU
- How many pounds of ice at 12°F could we change to water at 121°F if we introduced 145,000 BTU to the container?
Answer: BTU
- How many BTUs will it take to heat 4,124 lb. of ice at –17°F to steam at 233°F?
Answer: BTU
- How many pounds of steam at 245°F could we change to ice at –77°F if we removed 900,500 BTUs from the substance?
Answer: BTU
- How many BTUs would it take to heat 256 lb. of ice at –55°F to steam at 259°F?
Answer: BTU
- How many BTUs would it take to warm up a swimming pool by 20°F if the pool measured [latex]16\text{'} \times 20\text{'}[/latex] and had an average depth of 5′?
Answer: BTU
- How many BTUs would it take to warm up a hot tub by 25°F if the tub measured 6′ in diameter and had a depth of 4′?
Answer: BTU
Answer Key: Self-Test C-1.19 is on the other page.
