Determine the running cost of machine to the owner for running time 7hr/day if the unit cost of electricity is $0.08/kW.hr.
No idea. How many kW does the machine use?
Then just multiply by 7 to get kW used and then multiply by $.08 to get cost
No
To determine the running cost of the machine for 7 hours per day, you need to know the power consumption of the machine. If you have the power consumption in kilowatts (kW), you can use the unit cost of electricity to calculate the running cost.
1. Find the power consumption of the machine: If you have the power consumption in watts (W), convert it to kilowatts (kW) by dividing by 1000.
2. Multiply the power consumption (in kW) by the number of hours the machine is running per day (7 hours) to get the total energy consumed per day (in kilowatt-hours, kWh).
3. Multiply the total energy consumed per day (in kWh) by the unit cost of electricity ($0.08/kWh) to calculate the running cost for 7 hours per day.
Let's assume the power consumption of the machine is 2000 watts (2 kW):
1. Power consumption of the machine = 2000 W / 1000 = 2 kW
2. Energy consumed per day = 2 kW × 7 hours = 14 kWh
3. Running cost = 14 kWh × $0.08/kWh = $1.12
So, the running cost of the machine for 7 hours per day would be $1.12.