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Question B2. An oil which has a heat capacity is 2.30 kJ/(kg·K) is being cooled in...
A concentric tube heat exchanger for cooling lubricating oil consists of a thin-walled inner tube of...
A concentric tube heat exchanger for cooling lubricating oil
consists of a thin-walled inner tube of 25 mm diameter carrying
water and an outer tube of 45 mm diameter carrying the oil. The
exchanger operates in countercurrent flow with an overall heat
transfer coefficient of 55 W/m2 K and the tabulated average
properties given below. Mass flow rates of oil and water are both
0.1 kg/s, oil enters the exchanger at 100°C, and water enters the
exchanger at 30°C. (a)...
Oil of unknown properties is heated in a shell-and-tube heat exchanger with one shell pass and...
Oil of unknown properties is heated in a shell-and-tube heat exchanger with one shell pass and 20 tube passes. The oil flows through the shell, and hot water flows inside the single copper tube that has an inner diameter of 20 mm, a wall thickness of 2 mm, and a length of 3 m per pass. The water enters at 360 K at a mass flow rate of 0.2 kg/s and leaves at 300 K. The inlet and outlet temperatures...
Q2) Engine oil is to be cooled by water in a condenser. The engine oil enters...
Q2) Engine oil is to be cooled by water in a condenser. The engine oil enters the condenser with a mass flow rate of 6 kg/min at 1 MPa and 70'C and leaves at 35°C. The cooling water enters at 300 kPa and 15°C and leaves at 25°C. Neglecting any pressure drops, determine a) the mass flow rate of the cooling water required, and b) the heat transfer rate from the engine oil to water. Water 15°C Control Volume Heat...
Problem 4: Heat Exchangers Analysis (25 points) A counterflow plate-type heat exchanger as shown in the...
Problem 4: Heat Exchangers Analysis (25 points) A counterflow plate-type heat exchanger as shown in the figure below is used to cool propane fuel W 50 mm H 25 mm Saturated Vapor propane Thickness t =5 mm H 25 mm Cooling water Length L The flow rate of the cooling water is 0.2 kg/s, while the flow of the propane is 0.1 kg/s. The water enters the heat exchanger at a temperature of 20°C while the propane enters at its...
Problem (25 Points - Chapter 11) A concentre tube heat exchanger for cooling lubricating oil is...
Problem (25 Points - Chapter 11) A concentre tube heat exchanger for cooling lubricating oil is comprised of a thin-walled me tube of 25-mm diameter carrying water and an our tube of 45mm diameter coming the The heat exchanger operates in counterflow with an overall heat transfer coefficient of W K and the average property as given in the table below. If the outlet temperature of the oil is 60°C, determine the following (a) total heat transfer rate, (b) outlet...
Hot water flows thorough a parallel flow heat exchanger at a rate of 10 kg/min and...
Hot water flows thorough a parallel flow heat exchanger at a rate of 10 kg/min and is cooled by a cold water stream of flow rate 25 kg/min. The inlet temperatures of hot and cold water streams are 70 oC and 25 oC, respectively. The outlet temperature of the hot water is expected to be 50 oC. The individual convective heat transfer coefficient on both sides of the heat transfer area is 600 W/m2 .K. Take the specific heat for...
can you solve only last 4 questions Q3. Oil of unknown properties is heated in a...
can you solve only last 4
questions
Q3. Oil of unknown properties is heated in a shell-and-tube heat exchanger with one shell pass and 20 tube passes. The oil flows through the shell, and hot water flows inside the single copper tube that has an inner diameter of 20 mm, a wall thickness of 2 mm, and a length of 3 m per pass. The water enters at 360 Kat a mass flow rate of 0.2 kg/s and leaves at...
A concentric tube heat exchanger for cooling lubricating oil is comprised of a thin-walled inner tube...
A concentric tube heat exchanger for cooling lubricating oil is comprised of a thin-walled inner tube of 25 mm diameter carrying water and an outer tube of 45 mm diameter carrying the oil. The mass flow rates of both fluids are 0.1 kg/s. The exchanger operates in counter-flow with an overall heat transfer coefficient of 60 W/m2
Q4) (10 Marks) From aperformance test on a well-baMed single-she, two-tube-pass heat exchanger, the following data are...
Q4) (10 Marks) From aperformance test on a well-baMed single-she, two-tube-pass heat exchanger, the following data are available: oil (cp 2100 J/kg K) in turbulent flow inside the tubes entered at 340 K at the rate of 1.00 kg/sand left at 310 K: water lowing on the shell side entered at 290 K and lcft at 300 K and (cp water 4187 kg K). A change in service conditions requires the cooling of similar oil from an initial temperature of...
The oil in an engine is cooled by air in a cross-ow heat exchanger where both...
The oil in an engine is cooled by air in a cross-ow heat exchanger where both uids are unmixed. Atmospheric air enters at 30C and 0.53kg/s. Oil at 0.026kg/s enters at 75C and ows through a tube of 10-mm diameter. Assuming fully developed ow and constant wall heat ux, estimate the oil-side heat transfer coefcient. If the overall convection coefcient is 53W/m2K and the total heat transfer area is 1m 2, determine the effectiveness. What is the exit temperature of...
A concentric tube heat exchanger for cooling lubricating oil
consists of a thin-walled inner tube of 25 mm diameter carrying
water and an outer tube of 45 mm diameter carrying the oil. The
exchanger operates in countercurrent flow with an overall heat
transfer coefficient of 55 W/m2 K and the tabulated average
properties given below. Mass flow rates of oil and water are both
0.1 kg/s, oil enters the exchanger at 100°C, and water enters the
exchanger at 30°C. (a)...
Oil of unknown properties is heated in a shell-and-tube heat exchanger with one shell pass and 20 tube passes. The oil flows through the shell, and hot water flows inside the single copper tube that has an inner diameter of 20 mm, a wall thickness of 2 mm, and a length of 3 m per pass. The water enters at 360 K at a mass flow rate of 0.2 kg/s and leaves at 300 K. The inlet and outlet temperatures...
Q2) Engine oil is to be cooled by water in a condenser. The engine oil enters the condenser with a mass flow rate of 6 kg/min at 1 MPa and 70'C and leaves at 35°C. The cooling water enters at 300 kPa and 15°C and leaves at 25°C. Neglecting any pressure drops, determine a) the mass flow rate of the cooling water required, and b) the heat transfer rate from the engine oil to water. Water 15°C Control Volume Heat...
Problem 4: Heat Exchangers Analysis (25 points) A counterflow plate-type heat exchanger as shown in the figure below is used to cool propane fuel W 50 mm H 25 mm Saturated Vapor propane Thickness t =5 mm H 25 mm Cooling water Length L The flow rate of the cooling water is 0.2 kg/s, while the flow of the propane is 0.1 kg/s. The water enters the heat exchanger at a temperature of 20°C while the propane enters at its...
Problem (25 Points - Chapter 11) A concentre tube heat exchanger for cooling lubricating oil is comprised of a thin-walled me tube of 25-mm diameter carrying water and an our tube of 45mm diameter coming the The heat exchanger operates in counterflow with an overall heat transfer coefficient of W K and the average property as given in the table below. If the outlet temperature of the oil is 60°C, determine the following (a) total heat transfer rate, (b) outlet...
can you solve only last 4
questions
Q3. Oil of unknown properties is heated in a shell-and-tube heat exchanger with one shell pass and 20 tube passes. The oil flows through the shell, and hot water flows inside the single copper tube that has an inner diameter of 20 mm, a wall thickness of 2 mm, and a length of 3 m per pass. The water enters at 360 Kat a mass flow rate of 0.2 kg/s and leaves at...
Q4) (10 Marks) From aperformance test on a well-baMed single-she, two-tube-pass heat exchanger, the following data are available: oil (cp 2100 J/kg K) in turbulent flow inside the tubes entered at 340 K at the rate of 1.00 kg/sand left at 310 K: water lowing on the shell side entered at 290 K and lcft at 300 K and (cp water 4187 kg K). A change in service conditions requires the cooling of similar oil from an initial temperature of...
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