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- 1. Residual oil, with a heating value of 18,480 BTU/bm, is used as a fuel in a power plant which produces 947,870 BTU/s of electricity. The overall efficiency of the power plant is 52 Determine the: a. Heat input, in BTUs b. Daily fuel consumption, in lbm C. Dimensions of the cylindrical storage (assuming length is equal to the diameter), in ft. d. Heat rejected the environment, in BTU/s. The density of the oil is 62 ID/ft.A chromel-constantan type thermocouple has a cold junction (or cold terminal) at the temperature of 20ºC. The tables provide the following values for this thermocouple: 0°C for e.m.f = 0.000 mV; 20ºC for e.m.f = 1192 mV and 200ºC for e.m.f = 13419 mV. To determine:(a) The Seebeck coefficient (or proportionality constant) of this thermocouple. (b) The electrical voltage at the thermocouple terminals when the hot junction (or terminal hot) is at a temperature of 200ºC.Residual oil, with a heating value of 18,480 BTU/lbm, is used as a fuel in a power plant which produces 947,870 BTU/s of electricity. The overall efficiency of the power plant is 52%. Determine the: a. Heat input, in BTU/s b. Daily fuel consumption, in lbm c. Dimensions of the cylindrical storage (assuming length is equal to the diameter), in ft. d. Heat rejected to the environment, in BTU/s. The density of the oil is 62 lbm/ft3
- Match the following 1353 W/m2 -Global irradiance 10.3 x 106 watts -solar radiation absorbed in atmosphere 1kW/m2 -Solar power intercepted by earth 1.8 x 1011 MW -Solar irradiance outside atmosphereA probe with an improvement coefficient of 0.88 will measure the temperature in an ideal gas flow with a speed of 95 m/s. Since the gas constant of the liquid is 0.288 kJ/kgK and its isanthropic base is 1.4, how many ºC is the difference between the temperature that the probe will show and the actual temperature of the liquid? a. 2.317 b. 3.939 c. 2.455 d. 2.716 e. 3.268Using the information in Problem 1.22, estimate the ambient air temperature that could cause frostbite on a calm day on the ski slopes. 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35W/mKis35C and the air temperature is 20C. Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about 20W/m2K (see Table 1.4), but in a 40-mph wind it increases to 75W/m2K. If frostbite occurs when the skin temperature drops to about 10C, do you advise the skier to wear a face mask? What is the skin temperature drop due to the wind?
- a) The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 5.00-g peanut if the energy from burning it is transferred to 0.500 kg of water held in a 0.100-kg aluminum cup, causing a 54.9C temperature increase? (b) Compare your answer to labeling information found on a package of peanuts and comment on whether the values are consistent.In the measurement with the thermoeleman circuit, whose voltage-temperature relation is linear and the calibration coefficient is 0.05 mV/ºC, it was understood that the temperature of the reference end is higher than 0ºC after the measurement point temperature is calculated as 80ºC. To resolve this error, this time the measuring tip was immersed in the water-ice mixture and a deviation of 0.15 mV was observed at the millivolt meter. How many ° C is the first value measured as 80 ° C? a. 76.25 b. 77.50 c. 78.00 d. 75.00 e. 77.00Please help and answer completely, i will surely give a good feedback. Thank you. Refer to the picture attached. The following pressure, temperature and specific humidity measurementswere made from radiosonde soundings on day 11 of the Wangara PBLexperiment: A. Characterize the various layers on the basis of local and nonlocal stability and discuss the differences between the two. B. Estimate the height of the inversion base (zi), as well as the PBL height (h). Discuss the sensitivity of the latter to the near-surface temperature. Answer in the format of Given, Required, & Solution.
- A nuclear power station is situated in Coal Valley, which is a roughly rectangular valley that is 5 km long, 2 km wide, and 200 m deep. You have been asked to evaluate the effects of a worst-case scenario where the reactor housing fails, and radiation is released to the atmosphere. In your evaluation, you determine that 120 kg of Iodine-131 (a radioisotope that causes thyroid gland and liver damage) could be released into the atmosphere. Assuming the release of Iodine-131 was very rapid and all of it was uniformly distributed through the valley’s atmosphere with none escaping the valley, what would the concentration of Iodine-131 be in the valley’s air? Your answer should be expressed in units of ppm(v), and you may assume an atmospheric pressure of 1.0 atm and a temperature of 20oC. 2. Assuming the Iodine-131 concentration you calculated in part (a) is the initial concentration in the valley, you now want to determine the time it will take for the concentration to decrease to…One of the design requirements for a multi-role jet fighter is a maximum sustained load factor of 9 g’s at 15,000 ft above mean sea level (MSL). What atmospheric conditions (P, T, and ρ) would you use in calculations which determine if a proposed design can meet this requirement?Qsafe = 187.586 MJ