Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
Early showerheads consumed either 5 or 7 gallons of water per minute (gpm). Federal plumbing standards (beginning with the Energy Policy Act of 1992) mandated that showerheads use no more than 2.5 gpm to conserve water and save (hot water) energy. High-efficiency showerheads use 1.5 or 1.75 gpm.

Early showerheads consumed either 5 or 7 gallons of water per minute (gpm). Federal plumbing standards (beginning with the Energy Policy Act of 1992) mandated that showerheads use no more than 2.5 gpm to conserve water and save (hot water) energy. High-efficiency showerheads use 1.5 or 1.75 gpm.

International Edition---engineering Mechanics: Statics, 4th Edition
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter1: Introduction To Statics
Section: Chapter Questions
Problem 1.4P: A compact car travels 30 mi on one gallon of gas. Determine the gas mileage of the car in km/L. Note...
See similar textbooks
icon
Related questions
Question

e please

2. Early showerheads consumed either 5 or 7 gallons of water per minute (gpm). Federal plumbing standards (beginning with the Energy Policy Act of 1992) mandated that showerheads use no more than 2.5 gpm to conserve water and save (hot water) energy. High-efficiency showerheads use 1.5 or 1.75 gpm. An older showerhead (5 gpm) is used, on average, for 15 minutes. Determine the gallons of water used if the shower is used twice a day over a year (365 days). а. A high-efficiency showerhead (1.5 gpm) is used for 15 minutes. Determine the gallons of water used if the shower is used twice a day over a year (365 days). b. Determine the water savings, in gallons/year, by switching from the older to the high- efficiency showerhead, if the shower is used twice a day over a year (365 days). с. In the U.S., shower water is heated, on average, from 50°F to 110°F. Since a Btu equates to a 1°F temperature increase in one pound of water and a gallon of water weighs about 8.3 Ib, water for a shower is heated with 498 Btu/gallon*. After water heater-efficiency losses, water heating consumes about 600 Btu/gallon. Determine the energy savings, in Btu/year, by switching from the older to the high-efficiency showerheads used twice a day over a year (365 days). d. * 1 Btu/°F-lb - (110°F - 50°F) 8.3 Ib/gal = 498 Btu/gal. Natural gas costs, on average, about $12/MMBtu (MMBtu = 1,000,000 Btu). Determine the energy cost savings, in $/year, by switching from the older to the high-efficiency showerheads used twice a day over a year (365 days). е.
Transcribed Image Text:2. Early showerheads consumed either 5 or 7 gallons of water per minute (gpm). Federal plumbing standards (beginning with the Energy Policy Act of 1992) mandated that showerheads use no more than 2.5 gpm to conserve water and save (hot water) energy. High-efficiency showerheads use 1.5 or 1.75 gpm. An older showerhead (5 gpm) is used, on average, for 15 minutes. Determine the gallons of water used if the shower is used twice a day over a year (365 days). а. A high-efficiency showerhead (1.5 gpm) is used for 15 minutes. Determine the gallons of water used if the shower is used twice a day over a year (365 days). b. Determine the water savings, in gallons/year, by switching from the older to the high- efficiency showerhead, if the shower is used twice a day over a year (365 days). с. In the U.S., shower water is heated, on average, from 50°F to 110°F. Since a Btu equates to a 1°F temperature increase in one pound of water and a gallon of water weighs about 8.3 Ib, water for a shower is heated with 498 Btu/gallon*. After water heater-efficiency losses, water heating consumes about 600 Btu/gallon. Determine the energy savings, in Btu/year, by switching from the older to the high-efficiency showerheads used twice a day over a year (365 days). d. * 1 Btu/°F-lb - (110°F - 50°F) 8.3 Ib/gal = 498 Btu/gal. Natural gas costs, on average, about $12/MMBtu (MMBtu = 1,000,000 Btu). Determine the energy cost savings, in $/year, by switching from the older to the high-efficiency showerheads used twice a day over a year (365 days). е.
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Buckling of Columns
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
International Edition---engineering Mechanics: St…
International Edition---engineering Mechanics: St…
Mechanical Engineering
ISBN:
9781305501607
Author:
Andrew Pytel And Jaan Kiusalaas
Publisher:
CENGAGE L
SEE MORE TEXTBOOKS