The input-output curve of a gas-fired generating unit is approximated by the following function: 4.2 H(P) = 120 +9.3 P + 0.0025 P² MJ/h This unit has a minimum stable generation of 200 MW and a maximum output of 500 MW. The cost of gas is 1.20 $/MJ. Over a 6-h period, the output of this unit is sold in a market for electrical energy at the prices shown in the table below. 2 3 Period 1 4 6. Price ($/MWh) 12.5 10 13 13.5 15 11 Assuming that this unit is optimally dispatched, is initially on-line and cannot be shut down, calculate its operational profit or loss for this period.
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- At the beginning of each week, a machine is in one of four conditions: 1 = excellent; 2 = good; 3 = average; 4 = bad. The weekly revenue earned by a machine in state 1, 2, 3, or 4 is 100, 90, 50, or 10, respectively. After observing the condition of the machine at the beginning of the week, the company has the option, for a cost of 200, of instantaneously replacing the machine with an excellent machine. The quality of the machine deteriorates over time, as shown in the file P10 41.xlsx. Four maintenance policies are under consideration: Policy 1: Never replace a machine. Policy 2: Immediately replace a bad machine. Policy 3: Immediately replace a bad or average machine. Policy 4: Immediately replace a bad, average, or good machine. Simulate each of these policies for 50 weeks (using at least 250 iterations each) to determine the policy that maximizes expected weekly profit. Assume that the machine at the beginning of week 1 is excellent.Deborah Hollwager, a concessionaire for the Amway cener in Orlando has developed a table of conditional values for the various altenatives(stocking decision) and state of nature (size of crowd) Alternatives large average small large inventory $20,000 $10,000 -$2,000 average inventory $12,000 $12,000 $8000 small inventory $10,000 $6,000 $5,000 probabilities associated with the states of nature are 0.35 for a large crowd, 0.50 for an average crowd, and 0.15 for a small crowd. a) The alternative that provides Deborah the greatest expected monetary value (EMv) is the EMV for this decision is $________ b) For Deborah, the expected value of the perfect information (EVPI)=$______In year 2010, a saop manufacturer forecasts that demand of 2011 will be 200 lakhs of units of saop. Whereas the actual demand was 210 lakhs of saops , now using the smoothing constant choosen by the management of alpha is 0.30 , the manufacturer wants to forecast the 2012 demand using the exponential smoothing model , calculate the same .
- Given this frequency distribution, what demand values would be associated with the following random numbers? (Do not round intermediate calculations.) Demand Frequency 23 1 16 2 18 43 Random Number Simulated Demand 0.1 0.6 0.4can you explain the concept about outputs of coNNNNONication with some martrix model with examples ?Given this frequency distribution, what demand values would be associated with the following random numbers? (Do not round intermediate calculations.) Demand Frequency 0 18 1 15 2 18 3 49 Random Numbers. Stimulated Demand 0.2 0.5 0.5
- The annual maintenance costs of a machine that has been in use for 3 years are 300 TL, 350 TL and 375 TL, respectively. The machine is expected to be available for 8 years after purchase. The maintenance costs foreseen for the coming years are 400 TL in the first year and 150 TL in the following years. If the machine is sold today, it can be sold for 1500 TL, and in the following years for 1000 TL. What is the optimum regeneration time of the machine if the MCVO is 10%?Deborah Holwager, a concessionaire for the Amway Center in Orlando, has developed a table of conditional values for the various alternatives (stocking decision) and states of nature (size of crowd) Alternatives States of Nature (size of crowd) Large Average Small Large Inventory Ave yge Inventory Smal Inventory $12,000 -51,000 $18,000 $15.000 $16,000 $4,000 $10,000 $5,000 Probabilities associated with the states of nature are 0.35 for a large crowd, 0.50 for an average crowd, and 0.15 for a small crowd. $6.000 a) The alternative that provides Deborah the greatest oxpected monetary value (EMV) is The EMV for this decision is s (enter your answer as a whole number).At an Oxford grocery store, the manager Jenny Produce buys lettuce each day to ensure really fresh produce. In her focus on quality, each morning any lettuce that is left from the previous day is sold to a dealer that resells it to farmers who use it to feed their animals. This week Jenny can buy fresh lettuce for $10.00 a box. The lettuce is sold for $22.00 a box and the dealer that sells old lettuce is willing to pay $2.00 a box. Past history says that tomorrow's demand for lettuce averages 270 boxes with a standard deviation of 44 boxes. How many boxes of lettuce should Jenny purchase tomorrow? (Use Excel's NORMSINV() function to find the Z-score. Round intermediate calculations to four decimal places. Round your answer to the nearest whole number.) I have asked this 3 times and nobody has got it right.
- .A 45 kW rated solar power system has its power output and the Solar irradiance on the PV system measured during daylight hours over a day. Based on the following data, create a scatter plot of the power output of the PV system vs the solar irradiance and comment on the relationship between the two. Based on the data, can you tell which season this day was in? Solar Irradiance on the PV system (kW/m²) 0 0.079 0.333 0.571 0.751 0.86 0.914 0.93 0.904 0.803 0.606 0.345 0.054 Power output from the PV system (kW) 0 3.098 12.438 20.124 25.703 28.498 29.587 29.69 28.798 26.264 20.434 12.223 2A cosmetics company fills its best selling jars of facial cream by an automatic dispensing machine. The machine is set to dispense a mean of 7.2 ounces per jar. Uncontrollable factors in the process can cause either underfill or overfill, both of which are undesireable. In such a case, the dispensing can be stopped and recalibrated. Regardless of the mean amount despensed, the standard deviation of the amount dispwnsed always has a value of 0.25 ounce. A quality control engineer routinely selects 36 jars from the assembly line to check the amounts filled. On one occasion, the sample mean is 7.8 ounces. Determine if there is sufficient evidence in the sample to indicate, at the 1% level of significance, that the machine should be recalibrated.Andrew Thomas, a sandwich vendor at Hard Rock Cafe's annual Rockfest, created a table of conditional values for the various alternatives (stocking decision) and states of nature (size of crowd) States of Nature (demand) Average $12,000 $9,000 $8,100 Big Small $22,000 -$2,000 Alternatives Large Stock Average Stock Small Stock $12,000 $6,000 $9,000 $4,000 The probabilities associated with the states of nature are 0.20 for a big demand, 0.45 for an average demand, and 0.35 for a small demand a) The alternative that provides Andrew Thomas the greatest expected monetary value (EMV) is