Calculate Energy & Cost for 7 Hour Oven Use

  • Thread starter Thread starter owura143
  • Start date Start date
  • Tags Tags
    Conduction
Click For Summary
SUMMARY

The discussion focuses on calculating the energy consumption and cost of operating an electric oven at a temperature of 165°C for 7 hours. The oven has a surface area of 1.6 m², is insulated with a thickness of 0.023 m, and has a thermal conductivity of 0.045 J/(sm°C). The energy used during this period is determined using the formula for heat transfer through the insulation, and the cost is calculated based on a rate of $0.10 per kilowatt-hour. The calculations yield specific energy usage and cost figures that are essential for understanding oven operation efficiency.

PREREQUISITES
  • Understanding of thermal conductivity and heat transfer principles
  • Basic knowledge of energy consumption calculations
  • Familiarity with electrical energy pricing models
  • Ability to perform unit conversions (e.g., Joules to kilowatt-hours)
NEXT STEPS
  • Research thermal insulation materials and their properties
  • Learn about energy efficiency standards for household appliances
  • Explore advanced heat transfer calculations in thermal engineering
  • Investigate cost-saving strategies for energy consumption in cooking
USEFUL FOR

Homeowners, energy efficiency consultants, electrical engineers, and anyone interested in optimizing energy use in kitchen appliances.

owura143
Messages
12
Reaction score
0
The temperature in an electric oven is 165°C. The temperature at the outer surface in the kitchen is 55°C. The oven (surface area = 1.6 m2) is insulated with material that has a thickness of 0.023 m and a thermal conductivity of 0.045 J/(sm°C).

a) How much energy is used to operate the oven for 7 hours?

(b) At a price of $0.10 per kilowatt hour for electrical energy, what is the cost of operating the oven?
 
Physics news on Phys.org
Owura, please offer at least an attempt at a solution, or what you know or even if I knew that I could get rest.
 
I solved it
 

Similar threads

How much energy is used to operate the oven for 7 hours?
  • · Replies 8 ·
Replies
8
Views
7K
Solve Heat Conduction Problem: Oven Energy Use & Cost
  • · Replies 1 ·
Replies
1
Views
4K
Conductance of heat through concrete
  • · Replies 2 ·
Replies
2
Views
3K
Cooking (Thermodynamics) Problems
  • · Replies 14 ·
Replies
14
Views
4K
Conductive heat transfer through basement wall
  • · Replies 3 ·
Replies
3
Views
8K
Energy use, conductive-convective layers and air films
  • · Replies 1 ·
Replies
1
Views
2K
How Can You Calculate Heat Transfer and Energy Costs in Various Scenarios?
  • · Replies 1 ·
Replies
1
Views
4K
Convective heat transfer and steady state conduction problem
  • · Replies 12 ·
Replies
12
Views
3K
Calculate the cost of the energy lost to heat per hour per meter
  • · Replies 5 ·
Replies
5
Views
5K
Carnot refrigerator cost problem
  • · Replies 1 ·
Replies
1
Views
6K