Concept explainers
An expression for the actual water vapor partial pressure in terms of wet-bulb and dry-bulb temperatures, referred to as the Carrier equation, is given as
where
- Using Carrier's equation, calculate the partial pressure of the water vapor in the free stream. What is the relative humidity?
- Refer to a psychrometric chart and obtain the relative humidity directly for the conditions indicated. Compare the result with part (a).
- Use Equation 6.65 to determine the relative humidity. Compare the result to parts (a) and (b).
Want to see the full answer?
Check out a sample textbook solutionChapter 6 Solutions
Fundamentals of Heat and Mass Transfer
Additional Engineering Textbook Solutions
Mechanics of Materials (10th Edition)
Heating Ventilating and Air Conditioning: Analysis and Design
Applied Fluid Mechanics (7th Edition)
Mechanics of Materials
Introduction to Heat Transfer
Engineering Mechanics: Statics & Dynamics (14th Edition)
- Apply the first law of thermodynamics as the statement of the conservation of energy principle to control volumes.arrow_forwardWhich of the following is a thermodynamic property of a system? a. concentration b. mass c. temperature d. entropyarrow_forwardEvaluate the specific volume, in m3 /kg, and the specific enthalpy, in kJ/kg, of Refrigerant 134a at 35°C and 10.3 bararrow_forward
- what is true of the heat content for a system at constant pressurearrow_forwardNo load Inlet Absolute Humidity Enthalpy Relative Humidity Air Density Vapor Pressure Outlet Absolute Humidity Enthalpy Relative Humidity Air Density Vapor Pressure 0.5 kW load Inlet Absolute Humidity Enthalpy Relative Humidity Air Density Vapor Pressure Outlet Absolute Humidity Enthalpy Relative Humidity Air Density Vapor Pressure 1 kW load Inlet Absolute Humidity Enthalpy Relative Humidity Air Density Vapor Pressure Outlet Absolute Humidity Enthalpy Relative Humidity Air Density Vapor Pressure In regards to a cooling tower practical, I was wondering would someone be able to help me fill out this table using the psychometric chart since I am not exactly sure if I am doing it correctly so it would be please help and also provide a rough idea on how to determine the following parameters for each load case (maybe just…arrow_forwardDetermine the mass of ideal air inside the room at a volume of 54 m^3 , pressure of 1 bar and temperature of 20 C? A)64.18 kg B)32.12 kg C)45 kg D)none E)128.28 kgarrow_forward
- :What are the two general ways to increase the internal energy of a substance according to the first law of thermodynamics?arrow_forwardIn a power plant operating with water and steam, the following measurements and observations were done at various stages along the system. the temperature is 115oC and the phase of the substance is saturated liquid. Based on this observation, identify the following values: pressure, P (in kPa) = _____ enthalpy, h (in kJ/kg) = _____ and the specific volume, v (in m3/kg) = _____arrow_forwardA car traversing along Taft Avenue consumes 12 liters of gasoline per 100 kilometers. What amount of carbon dioxide is produced by the car?arrow_forward
- 21.) Superheated vapor is characterized by the following, EXCEPT: a.Higher temperature (T>Tsat @ given P) b.Higher specific volume (v>vf @ given P or T) c.Higher enthalpies (h>hg @given P or T) d.Lower pressure (P<Psat @ given T) 18.) ____________ is the change in enthalpy with temperature at constant pressure. a.Cv b.n c.Cp d.karrow_forwardIn a power plant operating with water and steam, the following measurements and observations were done at various stages along the system. the temperature is 600oC and the Pressure is 200kPa. Based on this observation, identify the following values: enthalpy, h (in kJ/kg) = _____ and the specific volume, v (in m3/kg) = _____arrow_forwardComplete the following table of thermodynamic properties for water:arrow_forward
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY