Question

In: Physics

The average weather conditions are net radiation = 40 W/m2; air temperature = 28 .5° C;...

The average weather conditions are net radiation = 40 W/m2; air temperature = 28 .5° C; relative humidity = 55 percent; and wind speed = 2.7 m/s at a height of 2 m. Calculate the open water evaporation rate in millimeters per day using the energy method, the aerodynamic method, the combination method, and the Priestley-Taylor method. Assume standard atmospheric pressure is 101 kPa and Z0 is 0.03 cm.

Solutions

Expert Solution

​​​​​​

genius_generous answered 2 years ago
Next > < Previous

Related Solutions

Under what conditions of wind, radiation, air temperature, and hu- midity would you expect the leaf...
Under what conditions of wind, radiation, air temperature, and hu- midity would you expect the leaf temperature to depart most from the air temperature in a positive direction (leaf hotter than the air) and negative direction (leaf cooler than the air)?
At the Earth’s orbital distance, the intensity of the solar radiation is approximately 1400 W/m2. What...
At the Earth’s orbital distance, the intensity of the solar radiation is approximately 1400 W/m2. What is the value for the intensity at Mercury’s orbital distance, which is 38.7% the distance to the sun that the Earth is. 3800 W/m2 9350 W/m2 540 W/m2 2280 W/m2
The energy flux of solar radiation arriving at Earth orbit is 1353 W/m2. The diameter of...
The energy flux of solar radiation arriving at Earth orbit is 1353 W/m2. The diameter of the sun is 1.39x109 m and the diameter of the Earth is 1.29x107 The distance between the sun and Earth is 1.5x1011 m. (a) What is the emissive power of the sun as calculated from the parameters given above? (b) Approximating the sun’s surface as black, what is its temperature (as calculated from the parameters given above)? (c) At what wavelength is the spectral...
7.21 The Weather Channel reports that it is a hot, muggy day with an air temperature...
7.21 The Weather Channel reports that it is a hot, muggy day with an air temperature of 90°F, a 10 mph breeze out of the southwest, and bright sunshine with a solar insolation of 400 W/m2. Consider the wall of a metal building over which the prevailing wind blows. The length of the wall in the wind direction is 10 m, and the emissivity is 0.93. Assume that all the solar irradiation is absorbed, that the surroundings are at Tsur...
1. How do different long term climatic conditions (including air temperature, humidity, solar radiation, precipitation) affect...
1. How do different long term climatic conditions (including air temperature, humidity, solar radiation, precipitation) affect the performance of concrete, steel and timber? 2. Discuss the formation of different types of cracking in concrete. What will be the potential problems if these cracks are not repaired? Discuss the methods to prevent and fix the cracks. 3. There are two parts below: a. What is difference between Minor Destructive Test (MDT) and Non Destructive Test (NDT) of concrete? In which situation,...
Radiation from the Sun reaching Earth (just outside the atmosphere) has an intensity of 1400 W/m2....
Radiation from the Sun reaching Earth (just outside the atmosphere) has an intensity of 1400 W/m2. What would the intensity be at Uranus? Assuming that Earth (and its atmosphere) behaves like a flat disk perpendicular to the Sun's rays and that all the incident energy is absorbed, calculate the force on Earth due to radiation pressure. What would it be for Uranus? What is the force on the Earth due to the sun's gravitational attraction? What is it for Uranus?
A long solid bar (k = 28 W/m·K and α = 12 × 10−6 m2/s) of...
A long solid bar (k = 28 W/m·K and α = 12 × 10−6 m2/s) of square cross section is initially at a uniform temperature of 32°C. The cross section of the bar is 20 cm × 20 cm in size, and heat is generated in it uniformly at a rate of ??̇ = 8 × 105 ??⁄??2. All four sides of the bar are subjected to convection to the ambient air at T∞ = 30 °C with a heat...
Air enters a counter-flow drier at 70˚C dry bulb temperature and 20˚C dew point temperature. Air...
Air enters a counter-flow drier at 70˚C dry bulb temperature and 20˚C dew point temperature. Air leaves the drier at 40˚C and 60% relative humidity. The initial moisture content of the product is 82% (wet basis). The amount of air moving through the drier is 2000kg of dry air per hour. The mass flow rate of the product is 10kg dry solid per hour. What is the final moisture content of the dried product in wet basis?
Air enters a counter-flow drier at 70˚C dry bulb temperature and 20˚C dew point temperature. Air...
Air enters a counter-flow drier at 70˚C dry bulb temperature and 20˚C dew point temperature. Air leaves the drier at 40˚C and 60% relative humidity. The initial moisture content of the product is 82% (wet basis). The amount of air moving through the drier is 2000kg of dry air per hour. The mass flow rate of the product is 10kg dry solid per hour. What is the final moisture content of the dried product in wet basis?
Standard test conditions (STC) for panels are 1000 W/m2incoming radiation, panel oriented normal to the sun,...
Standard test conditions (STC) for panels are 1000 W/m2incoming radiation, panel oriented normal to the sun, and 25 °C.  If all other conditions are the same but we decrease the temperature, how will this affect power output of the panel, relative to its STC rating?  Why? How is solar energy wasted when the frequency of incoming solar radiation is too low? When the frequency is too high? How does a multi-junction solar cell improve efficiency compared to a single-junction cell?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT