Homework Answers
By looking at the table 220.55
we get number of appliances = 6
demand factor for 5 kw ( 3.5 to 8.75) = 43%
second option is correct 43%
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What will be the demand factor for a household that has 6 cooking appliances which requires...
A facility with a demand of 700 kW has a power factor of 0.72 . The...
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An article reported that for a sample of 59 kitchens with gas cooking appliances monitored during...
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Household with 3 people has following load. Four 20-watt lights for 5 hours per night and...
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can you answer this question and explain why? thanks. A 50-Hz 10-MVA, 66/22-kV distribution transformer has...
can you answer this question and explain why?
thanks.
A 50-Hz 10-MVA, 66/22-kV distribution transformer has a full-load efficiency of 98% at 0.8 lagging power factor. The transformer core loss is 80 kW. The transformer supplies an industrial load that has a constant demand of 5000 kW at 0.65 lagging power factor. The cost of energy is $0.1 per kWh. 1. In the following questions, assume that the voltage at the load terminal is maintained constant at 22 kV. calculations....
ILO 3 - 10 Marks PV string based on daily household energy consumption. [10 Marks) Part...
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Ram Roy’s firm has developed the following supply, demand, cost, and inventory data.
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Answer the next question(s) on the basis of the following demand and cost data for a specific firm
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An article reported that for a sample of 59 kitchens with gas cooking appliances monitored during a one-week period, the sample mean CO2 level (ppm) was 654.16, and the sample standard deviation was 164.04. (a) Calculate and interpret a 95% (two-sided) confidence interval for true average CO2 level in the population of all homes from which the sample was selected. (Round your answers to two decimal places.) (611.41 696.91 pm Interpret the resulting interval. We are 95% confident that this...
Karim and Hamid live together and share household chores. Each of them has a total of 4 hours for chores per day. The following table displays their production capabilities in an hour. Use the table to answer questions 5-8. TEH Hamid Karim Rooms Cleaned 1 room 2 rooms Meals Cooked 3 meals 4 meals 5. Which of the following is true? a. Karim has an absolute advantage in both cleaning and cooking b. Hamid has an absolute advantage over Karim...
Household with 3 people has following load. Four 20-watt lights for 5 hours per night and one 50-watt TV for 3 hours per night. All of the loads are DC and the site has a peak sun hour of 5 for the lowest month of the year. Find the minimum rating of array to meet the household's demand based on the data provided in table 1. Table 1 PSH 25 50 100 Loads DC only Daily Load Energy That system...
can you answer this question and explain why?
thanks.
A 50-Hz 10-MVA, 66/22-kV distribution transformer has a full-load efficiency of 98% at 0.8 lagging power factor. The transformer core loss is 80 kW. The transformer supplies an industrial load that has a constant demand of 5000 kW at 0.65 lagging power factor. The cost of energy is $0.1 per kWh. 1. In the following questions, assume that the voltage at the load terminal is maintained constant at 22 kV. calculations....
ILO 3 - 10 Marks PV string based on daily household energy consumption. [10 Marks) Part A. 16 Marks The standard derating (correction) factor estimating a household energy consumption is about 30 percent to account for the power losses. A certain household has the following items as seen in Table I. Table 1. Household items Quantity Power (Watt) Time day (Hours) Light bulbs TV Fans Fridge 1. Calculate the total power consumption of the appliances 12.marks! 2. Compute the total...
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