Question 5 (a) Estimate the depth of evaporation (in mm units) that can be expected to occur over a 24-hour period from a location under the following conditions: Available Energy = 800 W/m² Bowen Ratio = 0.35 You can assume the latent heat of vaporisation equals 2.5MJ/kg and the density of water equals 1000kg/m³. E= mm (b) When the Bowen ratio is less than 1, does the air above the water surface get warmer? (No answer given) +

Question 5 (a) Estimate the depth of evaporation (in mm units) that can be expected to occur over a 24-hour period from a location under the following conditions: Available Energy = 800 W/m² Bowen Ratio = 0.35 You can assume the latent heat of vaporisation equals 2.5MJ/kg and the density of water equals 1000kg/m³. E= mm (b) When the Bowen ratio is less than 1, does the air above the water surface get warmer? (No answer given) +

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 20P

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At a given location, the net radiation was 200 W/m2, the air temperature was 28°C, and the wind velocity at 2 m height was 3.0 m/s, relative humidity is 80%, roughness height is 0.1 cm. Use density of water = 1000 kg/m3 and psychrometric constant = 66.8 Pa/°C. Use energy balance method, aerodynamic method, and combined method to determine the evaporation rate (in mm/day). Using Energy Balance Method in mm/day Round to two (2) decimal places
Q1)) The reservoir has the following data: Evaporation by mass transfer = 4.5 mm/day Emitted solar radiation = 7.25 MJ/m².day Shortwave radiation reflection from water body = 5.2 MJ/m2.day Albedo = 0.723 Longwave radiation backed to the atmosphere =1.65 MJ/m².day Air temperature = 25 °C Water temperature = 10 °C Bown's ratio = 0.7 y = 0.066 kPa/ºC Calculate the evaporation by using Penman's equation?
At a given location, the net radiation was 200 W/m2, the air temperature was 28°C, and the wind velocity at 2 m height was 3.0 m/s, relative humidity is 80%, roughness height is 0.1 cm. Use density of water = 1000 kg/m3 and psychrometric constant = 66.8 Pa/°C. Use energy balance method, aerodynamic method, and combined method to determine the evaporation rate (in mm/day). Using Combined Method in mm/day Round to two (2) decimal places
At a given location, the net radiation was 205 W/m², the air temperature was 25°C, and the wind velocity at 2 m height was 2.0 m/s, relative humidity is 75%, roughness height is 0.5 cm. Use density of water = 999 kg/m³ and psychrometric constant = 66.8 Pa/°C. Use energy balance method, aerodynamic method, and combined method to determine the evaporation rate (in mm/day). Using Energy Balance Method in mm/day Round to two (2) decimal places Add your answer
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