Show the difference of heat release rates for a 3-m diameter kerosene fire with 45% efficiency vs...
Show the difference of heat release rates for a 3-m diameter kerosene fire with 45% efficiency vs. 70% efficiency.
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Show the difference of heat release rates for a 3-m diameter kerosene fire with 45% efficiency vs...
14. What are the differences in heat release rate for a 5 m diameter kerosene fire...
14. What are the differences in heat release rate for a 5 m diameter kerosene fire when the combustion efficiency is 85% versus 65%?
1. Define heat release rate (HRR) and explain its importance, in your own words. Specifically, what...
1. Define heat release rate (HRR) and explain its importance, in your own words. Specifically, what clements affect the HRR of a single fuel package? What is the mathematical formula for determining the HRR, and what does each element of the equation represent? Write your answers in your own words. Provide all references. Determine the peak HRR of the following items in Review Questions 2-5 (provide refer- ences for your answers): 2. Bunk bed 3. Sofa 4. Mattress 5. Kiosk...
5. Fire hoses used in major structure fires have inside diameters of 2.5 in. The nozzle of the fire hose have an inside diameter of 1.2 in. When firefighters are fighting a fire 2019.007 cm above...
5. Fire hoses used in major structure fires have inside diameters of 2.5 in. The nozzle of the fire hose have an inside diameter of 1.2 in. When firefighters are fighting a fire 2019.007 cm above the ground, the pressure in the nozzle is less than at ground level. When measured, the gauge pressure in the nozzle is 0.00 Pa. (a) (2p) How are the firefighters able to fight a fire with zero water pressure? Explain your answer (b) (2p)...
(3):A pump.used-in-a-fire-engine-delivers-water-through-a:150mm diameter pipe-to·a·nozzle-at.C, as shown in the figure below.·Point.C-is-30 m above the pump. The.velocity at...
(3):A pump.used-in-a-fire-engine-delivers-water-through-a:150mm diameter pipe-to·a·nozzle-at.C, as shown in the figure below.·Point.C-is-30 m above the pump. The.velocity at the nozzle.is.8.31. m/s-and-jet-diameter.is75 mm. Determine the power required to drive the pump. I - - - - - - - - - - Nozzle 30m 2m Pump AI Datum level
PROBLEM 3 (45 points) The condenser of a large steam power plant is a heat exchanger...
PROBLEM 3 (45 points) The condenser of a large steam power plant is a heat exchanger in which steam is condensed to liquid water. Assume the condenser to be a parallel flow shell-and-tube heat exchanger consisting of a single shell and 1x10 tubes, each executing two passes. The inner diameter of tubes is D = 50 mm and its thickness is 5 mm (Do not ignore the thickness). The steam condenses on their outer surface. Thermal conductivity of the tube...
please show work use chart to get correct length and fin efficiency 4. Straight metal fins...
please show work
use chart to get correct length and fin efficiency
4. Straight metal fins (k = 45 W/m °C) of triangular profile installed on a l m 1 m wall. The wall is maintained at 200 °C and are exposed to a convection environment at 25 °C with h = 204 W/m² °C. The fins have a length of 8 mm and a thickness of 2 mm. The space between two adjacent fins is 3 mm. Calculate (a)...
[20] Question 3 Crude oil is to be heated from 22 °C to 58 °C by heat exchange with the bottom product froma dis...
[20] Question 3 Crude oil is to be heated from 22 °C to 58 °C by heat exchange with the bottom product froma distillation column. The bottom product, flowing at 30 kg/s, is to be cooled from an initial temperature of 145 °C to 105 °C. The following shell and tube heat exchanger is available: 600 mm ID (1 shell pass) Shell inside diameter Tube configuration 2 passes 19.05 mm Tube outside diameter 2.1 mm Tube wall thickness 1.25 x...
(Chap 3- Heat conduction in cylinders and spheres) An 8-m-internal diameter spherical tank made of 1.5-cm-thick...
(Chap 3- Heat conduction in cylinders and spheres) An 8-m-internal diameter spherical tank made of 1.5-cm-thick stainless steel (k = 15W/m-K) is used to store iced water at 0°C. The tank is located in a room whose temperature is 25°C. The walls of the room are also at 25°C. The outer surface of the tank is black (emissivity1), and heat transfer between the outer surface of the tank and the surroundings is by natural convection and radiation. The convection heat...
please show all steps and do both. if you dont do both problems please do problem...
please show all steps and do both. if you dont do both
problems please do problem 2 is more important .
Problem 2. (45 Points) Cooling water available at 680F is flowing through 1 in diameter tube at a rate of 62000 lb/hr to cool 7000 lb/hr of a lube oil from 200 to 1000F. The specific heat of the lube is 0.62 Btu/lbm oF and viscosity is 5 cp, thermal conductivity is 0.067 Btu/ft-hr °F. The overall heat transfer...
6. For the B+-tree where M=3 and L=5 shown below, show how an insert of value...
6. For the B+-tree where M=3 and L=5 shown below, show how an insert of value 80 is handled. || 12 || 50 || / | \ / | \ 2 12 50 5 18 65 7 20 70 9 21 72 10 24 78 10 points 7. For the B+-tree where M=3 and L=5 shown below, show how an insert of value 28 is handled. || 24 || 75 || / | \ / | \ / | \...
14. What are the differences in heat release rate for a 5 m diameter kerosene fire when the combustion efficiency is 85% versus 65%?
1. Define heat release rate (HRR) and explain its importance, in your own words. Specifically, what clements affect the HRR of a single fuel package? What is the mathematical formula for determining the HRR, and what does each element of the equation represent? Write your answers in your own words. Provide all references. Determine the peak HRR of the following items in Review Questions 2-5 (provide refer- ences for your answers): 2. Bunk bed 3. Sofa 4. Mattress 5. Kiosk...
5. Fire hoses used in major structure fires have inside diameters of 2.5 in. The nozzle of the fire hose have an inside diameter of 1.2 in. When firefighters are fighting a fire 2019.007 cm above the ground, the pressure in the nozzle is less than at ground level. When measured, the gauge pressure in the nozzle is 0.00 Pa. (a) (2p) How are the firefighters able to fight a fire with zero water pressure? Explain your answer (b) (2p)...
(3):A pump.used-in-a-fire-engine-delivers-water-through-a:150mm diameter pipe-to·a·nozzle-at.C, as shown in the figure below.·Point.C-is-30 m above the pump. The.velocity at the nozzle.is.8.31. m/s-and-jet-diameter.is75 mm. Determine the power required to drive the pump. I - - - - - - - - - - Nozzle 30m 2m Pump AI Datum level
PROBLEM 3 (45 points) The condenser of a large steam power plant is a heat exchanger in which steam is condensed to liquid water. Assume the condenser to be a parallel flow shell-and-tube heat exchanger consisting of a single shell and 1x10 tubes, each executing two passes. The inner diameter of tubes is D = 50 mm and its thickness is 5 mm (Do not ignore the thickness). The steam condenses on their outer surface. Thermal conductivity of the tube...
please show work
use chart to get correct length and fin efficiency
4. Straight metal fins (k = 45 W/m °C) of triangular profile installed on a l m 1 m wall. The wall is maintained at 200 °C and are exposed to a convection environment at 25 °C with h = 204 W/m² °C. The fins have a length of 8 mm and a thickness of 2 mm. The space between two adjacent fins is 3 mm. Calculate (a)...
[20] Question 3 Crude oil is to be heated from 22 °C to 58 °C by heat exchange with the bottom product froma distillation column. The bottom product, flowing at 30 kg/s, is to be cooled from an initial temperature of 145 °C to 105 °C. The following shell and tube heat exchanger is available: 600 mm ID (1 shell pass) Shell inside diameter Tube configuration 2 passes 19.05 mm Tube outside diameter 2.1 mm Tube wall thickness 1.25 x...
(Chap 3- Heat conduction in cylinders and spheres) An 8-m-internal diameter spherical tank made of 1.5-cm-thick stainless steel (k = 15W/m-K) is used to store iced water at 0°C. The tank is located in a room whose temperature is 25°C. The walls of the room are also at 25°C. The outer surface of the tank is black (emissivity1), and heat transfer between the outer surface of the tank and the surroundings is by natural convection and radiation. The convection heat...
please show all steps and do both. if you dont do both
problems please do problem 2 is more important .
Problem 2. (45 Points) Cooling water available at 680F is flowing through 1 in diameter tube at a rate of 62000 lb/hr to cool 7000 lb/hr of a lube oil from 200 to 1000F. The specific heat of the lube is 0.62 Btu/lbm oF and viscosity is 5 cp, thermal conductivity is 0.067 Btu/ft-hr °F. The overall heat transfer...
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