10. Air is to be cooled and dehumidified by counter-current contact with water in a packed tower. The tower is to be designed for the following conditions, DBT and WBT are 28'C and 25°C respectively. Flow rate of inlet air 700 kg hof dry air. Inlet and outlet temperatures of water are 10'C and 18'C respectively. For the entering air estimate (i) humidity (ii) %R.H (i1) Dewpoint and (iv) enthalpy. 4/4 (Ans: ) 0.019 kgkg. (ii) 88.08%, (iHi) 23.5°C and(iv) 79.22 kJkg dry

Q: A food product with 80% moisture content in a 5 cm diameter can wants to be frozen. The density of…

A: The system is a lumped parameter model as Biot number is <0.1 The lumped parameter model for…

Q: The rate of heat loss from a tank to the surrounding by convection and conduction is expressed by:…

A: Given Equation; qA=0.7∆T1.27(Do)0.27where;q=rate of heat loss, Btu/hrA=Area of tank surface,…

Q: 2-The steady-state temperature distribution in a one-dimensional wall of thermal conductivity…

A: Given steady state temperature distribution in a one-dimensional wall T(oC) = a + bx2. Thermal…

Q: A metallic solid cylinder has a diameter of 11 cm and initial temperature of 300oC. The cylinder is…

A: Given, d= 11cm = 0.11m, r = 0.055m Ti = 300oC Tx = 50oC h = 1200W/m2oC Q = 4.9*106 J/m k = 204W/moC,…

Q: Determine the average convection heat transfer coefficient in a pipe (diameter d = 8 cm, length L =…

A:

Q: 4B. A fluid is streaming over a flat surface maintained at a different temperature. Measurements of…

A: The correct answer is to be identified.

Q: Why the temperature of the gas exiting the CSTR is different from the temperature of the entering…

A: Constant stirred tank reactor (CSTR) is a continuous, perfectly mixed reactor.

Q: -„ Energy Balances, Costs and Insulation - A 100 meter long section of a steam pipe with an outer…

A: The total resistance to heat transfer due to convection is calculated as follows:R = 1h(2πrL)h =…

Q: The energy transfer between the hot fluid and cold fluids is brought about by their complete…

A: We have to answer which type of heat exchanger is used where the hold and cold fluid is direct…

Q: A food product with 73% moisture content in a 7 cm diameter can wants to be frozen. The density of…

A: Given that: Thickness of the food product, a= 7 cm = 0.07 m ( since 1 cm = 0.01 m) Freezing…

Q: A metallic solid cylinder has a diameter of 11 cm and initial temperature of 300oC. The cylinder is…

A:

Q: Q4/ Air at 0°C and 1 atm flows at a velocity of 6 m/s across a rectangular plate at a uniform…

A:

Q: 3. A vertical furnace door, 1 m. in height has a surface temperature of 120°C over which air (30°C)…

A: Given height of the door = 1m surface temperature = 120°C air temperature = 30°C air velocity = 2.5…

Q: In a desert chemical plant, the operator wishes to store chilled water underground in a spherical…

A:

Q: A circumferential fin of rectangular profile has a thickness of 0.7 mm and is installed on a tube…

A: Assumptions- Thickness = y Convective heat transfer coefficient = h Thermal conductivity of fin…

Q: Use the on-line psychrometric chart (link in this module) to help solve this problem. The surface…

A: Given data: Surface temperature of the steel duct = 18 0C Dry bulb temperature of the surrounding…

Q: A 16-m x 8.5-m section of wall of an industrial furnace burning natural gas is not insulated. outer…

A:

Q: The gas at an average temperature of 180 oC is transported through a steel (steel-46 W/m2.K) pipe…

A:

Q: A bioengineer working at chemical company intends to dry an insoluble wet granular material in a pan…

A: Given Data : Dimensions of the pan = 0.6 m x 0.6 m x 0.03 m  The pan is insulated from the sides and…

Q: Heat Loss from a Furnace. Two horizontal metal plates having dimensions of 0.8 x 1.0 m comprise the…

A: Given  Metal plate with dimensions  Lenght L = 1 m Width W = 0.8 m Temperature of lower plate T1 =…

Q: The gas at an average temperature of 180 oC is transported through a steel (steel-46 W/m2.K) pipe…

A: Heat transfer takes place from a steel pipe through conduction and convection.

Q: After pressure spraying, there is a thin layer of water (at 70°F) left inside of a 24 inch diameter…

A:

Q: A 0.750-m section of a steel pipe, 2-inch schedule 40 (inside diameter = 52.50 mm), is carrying…

A: Inside diameter of Steel pipe D= 52.50 mm Flow rate of water m = 0.0125 kg/sec Specific Heat of…

Q: Warm body fiulds remove neat Trom the body as they expelled and evaporated is a prOcess of losing…

A: In the human body, there are five modes of heat loss. They are as follows: Evaporation Respiration…

Q: - Hot water at 60 °C is routed from one 3. External flow (cylinder in cross flow with tube walls,.…

A: Given information:   The initial temperature of the hot water, TH = 60°C Fluid transfer occurs…

Q: A person does 30 kJ work on 2 kg of water by stirring using a paddle wheel. While stirring, around…

A:

Q: Q4) Consider a 20-cm-thick large concrete plane wall (k = 27°C and h1 = 5 W/m². 12 W/m² °C on the…

A: Given Data The thickness of concrete = 20 cm = 0.2 m Thermal Conductivity of concrete (k) = 0.77…

Q: px 10³ beg 10³

A:

Q: A food product with 73% moisture content in a 10 cm diameter can wants to be frozen. The density of…

A: Given that, Moisture content = 73% Diameter d = 10 cm = 0.1 m Density of the product ρ = 970 kg/m3…

Q: Air at 20°C, 1 atm is blown over a flat plate at 3 m/s. The plate is 60 cm wide and 640 cm long and…

A: Given data: Temperature of air = 20 0C Pressure = 1 atm Width of plate = 60 cm Length of plate = 640…

Q: Saturated steam at 267°F is flowing inside a hollow sphere with an ID of 0.824 in. and an OD of 1.05…

A: Refer to the figure shown below based on the given problem statement,

Q: Initially 10°C water is heated to 80°C as it flows with a mass flow rate of 0.0825 kg/s through a…

A:

Q: Q1-A block as sphere made of Teflon initially at a temperature of 90 C is suddenly immersed in a…

A: Ti=90∘CT∞=20∘CT=Ti2=902=45∘Ch=10W/m2C∘ASSUME: Lumped capacity system.From the…

Q: A food product with 73% moisture content in a 5 cm diameter can wants to be frozen. The density of…

A: Given data: Density of the product = 970 kg/m3 Thermal conductivity of the product = 1.2 W/m∙K…

Q: Water enters inside a pipe with diameter of 10.25 mm and length 1.250 m at 55.00 °C. The inside wall…

A: Given: Water temperature Ti = 55oC and To = 26oC and the wall temperature is given as Tw = 10oC. Let…

Q: 3. Hot water with a temperature of 330 K is flowing through a pipe. Heat loss per unit pipe length…

A:

Principal Quantities and EOS

A physical quantity represents the physical state of a system. It is expressed as the product of a number and unit. The basic quantities used in science are length, mass, and time. The principal quantities are the quantities that are independent of other quantities.