Heat Integration Rubric
Project Requirements
Part I - Each student team will be required to:
1. Pick a pair of streams from your process for which you feel might be a match for
heat recovery (exchange). Design a heat exchange network that minimizes the total
cost of the network (operating and capital). You must find the best approach
temperature for your network and you must include your optimization chart.
2. Now, identify at least four streams from among your hot and cold process streams
to be integrated. A table with the stream name; flowrate; average mass flow and
heat capacity product (mCp); heat flowrate to be exchanged and temperature
difference must be included, see Table in Example 9.1, pg 254 in Seider, et al. You
must identify at least four streams assuming that at least four streams required heat
changes in your process.
3. Produce a Pinch Decomposition Chart (refer to Figure 9.5 on pg. 257 of Seider, et al.)
for your heat exchange network (HEN).
4. Produce a Composite Curve for your HEN (refer to Figure 9.7b on pg. 258 of Seider,
et al.).
5. Construct a preliminary HEN using the “Stream Matching at the Pinch” method
(refer to pg. 261 of Seider, et al.). Provide the HEN diagram in the form illustrated in
Example 9.7 on pg. 264 of Seider, et al.
6. About the Report – Your Part I report should include an Executive Summary and a
Discussion that outlines all of your procedures. You might want to sub-divide your
discussion into the following sections:
a. Single Stream pair optimization (Item No. 1)
b. Identification and definition of the streams (Items No. 2 and 3)
c.
Pinch decomposition and charts (Item No. 4)
d. Preliminary HEN using Stream Matching at the Pinch (Item No. 5)
Part II – Optional Extra Credit (worth an additional 20%) Each student team will be
required to:
1. Develop an “optimized” HEN using Aspen Energy Analyzer software. The final HEN
diagram is to be reported in a format equivalent to that illustrated in Example 9.7 on
pg. 264 of Seider, et al.
2. Explain what Aspen Energy Analyzer is doing based on readily available
information, e.g. information on line, information in HELP, etc.
3. Compare the optimized HEN with both HEN alternatives that you found in Part I.
Your comparison must establish how they are different in terms of the number of
exchangers and energy requirements.
4. About the Report – Your Part II report should include an Executive Summary and a
Discussion that outlines all of your procedures. You might want to sub-divide your
discussion into the following sections:
a. Discussion of your Aspen-based optimized HEN and comparison to other
HENs that Aspen develops (Part II, Item No. 1)
b. Description of what Energy Analyzer is doing (Part II, Items No. 2)
c. Comparison of your Aspen-based optimized HEN to HENs developed in Part I
(Part II, Item No. 3)
Assessment Rubric
ABET Course
Outcome
3a - knowledge
3c - design
3d - teamwork
3e - formulation
3f - ethics
3g - communication
3h - societal
3k - tools
ABET
Course
Outcome
3a
3c
3d
3e
3f
3g
3h
3k
Title
Summary
Intro
(Part I)
Model
Reconciliation
20
20
Models
20
10
30
Description of Models
Stream
Matching
(Part I)
MILP
(Part I)
Aspen
(Part II)
Discussion
(Part II)
20
20
5
5
5
10
10
15
10