Bare Module Cost Analysis
In Chapter 15, the concepts of heat-exchanger networks and pinch technology are discussed. When designing these networks to recover process heat, it is often necessary to have a close temperature approach between process streams, which leads to large heat exchangers with multiple shells. Multiple-shell heat exchangers are often constructed from sets of 1-2 shell-and-tube exchangers stacked together. For costing considerations, the cost of the multiple-shell heat exchanger is best estimated as a number of smaller 1-2 exchangers. Consider a heat exchanger constructed of carbon steel and designed to withstand a pressure of 20 barg in both the shell and tube sides. This equipment has a heat exchange area of 400 m2 . Do the following: a. Determine the bare module cost of this 4-shell and 8-tube pass heat exchanger as four, 1-2 exchangers, each with a heat-exchange area of 100 m2 . b. Determine the bare module cost of the same exchanger as if it had a single shell. c. What is the name of the principle given in this chapter that explains the difference between the two answers in (a) and (b)?
Homework Answers
14. In Chapter 15, the concepts of heat-exchanger networks and pinch technology are discussed. Wh...
14. In Chapter 15, the concepts of heat-exchanger networks and pinch technology are discussed. When designing these networks to recover process heat, it is often neces- sary to have a close temperature approach between process streams, which leads to large heat exchangers with multiple shells. Multiple-shell heat exchangers are often constructed from sets of 1-2 shell-and-tube exchangers stacked together. For costing considerations, the cost of the multiple-shell heat exchanger is best estimated as a number of smaller 1-2 exchangers. Consider...
Question 5 - LMTD Heat Exchangers A 2 shell, 4 tube pass heat exchanger is being...
Question 5 - LMTD Heat Exchangers A 2 shell, 4 tube pass heat exchanger is being used to heat 50 kg/s of a process fluid in the tubes from an inlet temperature of 25°C to a target temperature of 80°C using condensing steam at 150°C. The overall heat transfer coefficient for a clean heat exchanger was U-1500W/m2.°C, however, the design engineer neglected to take into account fouling of the heat exchanger. After 5 years of use, fouling has occurred with...
[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...
Step by step A press stream C is fed to heat exchanger with an overall heal...
Step by step
A press stream C is fed to heat exchanger with an overall heal fer coefficient of M W AKA second press stream, C2, is fed to beat exchanger 2 with all overall heat transfer coefficient of 1200 W K "The mission rate of streamclis 1 kg min, and the mass flow rate of stream C2 is 2 min. Streams Cland C2 need to be heated in their respective that exchanges from 300 Kto480 K prior reaction. The...
use following to solve 3) Using an order of magnitude method (Hill), estimate the TCI in...
use following to solve
3) Using an order of magnitude method (Hill), estimate the TCI in year 2006 dollars for a grass-roots plant with 100,000-lb annual production using an order-of-magnitude method based on a 10,000-lb annual production. The plant contains three 1200-ft/min centrifugal fans, five 1500-ft/min centrifugal blowers, seven 100-ft' centrifugal separators, and two 100-ft shell-and-tube heat exchangers. You may assume all materials are carbon steel, the materials handled are primarily solid, and that this plant construction is done fully...
Design Project 8.1 Oil Cooler for Marine Application The following specifications are given : A shell-and-tube heat ex...
Design Project 8.1 Oil Cooler for Marine Application
The following specifications are given :
A shell-and-tube heat exchanger type with geometric parameters
can be selected. The heat exchanger must be designed and rated.
Different configurations of shell-and-tube types can be tested.
Parametric study is expected to come up with a suitable final
design; mechanical design will be performed and the cost will be
estimated. Follow the chart given in Figure 8.10.
Please use NTU method...
Design Project 8.1 Oil Cooler...
summarizr the followung info and write them in your own words and break them into different...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
The administration of President Barack Obama has made Patient Protection and Affordable Care Act, often called...
The administration of President Barack Obama has made Patient Protection and Affordable Care Act, often called “Obamacare”, its chief domestic accomplishment and the centerpiece of Obama’s legacy. Essential to Obama’s health care reform plan is Healthcare.gov, a health insurance exchange Web site that facilitates the sale of private health insurance plans to U.S. residents, assists people eligible to sign up for Medicaid, and has a separate marketplace for small businesses. The site allows users to compare prices on health insurance...
14. In Chapter 15, the concepts of heat-exchanger networks and pinch technology are discussed. When designing these networks to recover process heat, it is often neces- sary to have a close temperature approach between process streams, which leads to large heat exchangers with multiple shells. Multiple-shell heat exchangers are often constructed from sets of 1-2 shell-and-tube exchangers stacked together. For costing considerations, the cost of the multiple-shell heat exchanger is best estimated as a number of smaller 1-2 exchangers. Consider...
Question 5 - LMTD Heat Exchangers A 2 shell, 4 tube pass heat exchanger is being used to heat 50 kg/s of a process fluid in the tubes from an inlet temperature of 25°C to a target temperature of 80°C using condensing steam at 150°C. The overall heat transfer coefficient for a clean heat exchanger was U-1500W/m2.°C, however, the design engineer neglected to take into account fouling of the heat exchanger. After 5 years of use, fouling has occurred with...
[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...
Step by step
A press stream C is fed to heat exchanger with an overall heal fer coefficient of M W AKA second press stream, C2, is fed to beat exchanger 2 with all overall heat transfer coefficient of 1200 W K "The mission rate of streamclis 1 kg min, and the mass flow rate of stream C2 is 2 min. Streams Cland C2 need to be heated in their respective that exchanges from 300 Kto480 K prior reaction. The...
use following to solve
3) Using an order of magnitude method (Hill), estimate the TCI in year 2006 dollars for a grass-roots plant with 100,000-lb annual production using an order-of-magnitude method based on a 10,000-lb annual production. The plant contains three 1200-ft/min centrifugal fans, five 1500-ft/min centrifugal blowers, seven 100-ft' centrifugal separators, and two 100-ft shell-and-tube heat exchangers. You may assume all materials are carbon steel, the materials handled are primarily solid, and that this plant construction is done fully...
Design Project 8.1 Oil Cooler for Marine Application
The following specifications are given :
A shell-and-tube heat exchanger type with geometric parameters
can be selected. The heat exchanger must be designed and rated.
Different configurations of shell-and-tube types can be tested.
Parametric study is expected to come up with a suitable final
design; mechanical design will be performed and the cost will be
estimated. Follow the chart given in Figure 8.10.
Please use NTU method...
Design Project 8.1 Oil Cooler...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
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