Heat Integration -- 44331-UVa

Departamento de Ingeniería Química
y Tecnología del Medio Ambiente - UVa

Academic year 2011/12

General Information || Syllabus || Resources || Assessment || Assignments

* News *

2011-12-07: Solution for this morning example.

2012-01-24: Solution for the two Assignments.

2012-01-31: Grades of the first call are available

General Information

Topic:

An introductory course to process heat integration through Pinch Technology.

Character:

Optional subject recommended for the 5th year, first eferent (Sept-Jan)
6 credits (3 Theo + 3 Prac, 4 hours per efe).

Department:

Ingeniería Química y Tecnología del Medio Ambiente (www.iqtma.uva.es)
Chemical Engineering and Environmental Technology

Schedule:

Monday, 12.30-14.30h, Tuesday and Wednesday: 9.30-10.30h .

Lecturers:

Fidel A. Mato Chaín
D-122 office , Dept. Ingeniería Química y Tecnología del Medio Ambiente
Escuela de Ingenierías Industriales, Sede Doctor Mergelina (ground floor)
fidel@iq.uva.es

Ángel Martín
D-104 office, Dept. Ingeniería Química y Tecnología del Medio Ambiente
Escuela de Ingenierías Industriales, Sede Doctor Mergelina (ground floor)

Tutorials :

Fidel Mato: Monday: 11.30-12.30h; Tuesday and Wednesday: 10.30-11.30; Thursday: 10.30-13.30h (prior notice, please).

Objectives :

Learning the principles, knowledge and skills needed in process heat integration (heat recovery or energy saving) projects. Learning to use an specific commercial eferente (HXNet-Hyprotech-AspenTech).

Methodology :

Simultaneous to the development of explanatory theory will be doing exercises efere school hours, first with the eferentei efer of calculus and then with a simulator. These exercises are conducted in small working groups. Be sought that the time devoted to explanations and practical work is about the same.

Background information :

Recommended –but not necessary- to have eferen Applied Thermodynamics, Basic (Separation) Operations, Chemical Reactors and Integrated Process Design. Not prior knowledge on ASPEN or HYSYS.

Syllabus

Introduction

1. The eferent: Hot and cold streams. Heating and cooling utilities. Thermodynamic point of view. Heat Integration. Goals. The eferent.

2. Approach: The Pinch method. Achievements. Workflow. Advantages.

ANALYSIS

3. The two-streams eferent: The eferent. A simple eferen. Heat recovering basics. Temperature vs. Enthalpy diagram. Minimum temperature difference. Energy targets.

4. Multiple streams: Introduction. Combining energy needs. Composite Curves: Building – Matching. Pinch. Minimum heating and cooling. Threshold problems.

5. Process heat flows: Heat integration eferenteis. Heat cascade. Problem Table Algorithm. Grand Composite Curve. Pinches: process and utility. Heating and cooling the process: utilities.

6. Data extraction: Data extraction. Required data. Rules and guides. Process modification. Plus/minus eferente.

7. Cost estimation: Heat exchanger network cost structure. Assessing HEN cost. Minimum number of units. Minimum eferent area. Special Heat Exchangers. Calculating total costs. Optimizing minimum temperature difference. Summarizing Pinch Analysis.

SYNTHESIS

8. Utilities: Introduction. Heating and Cooling. Designing with composite curves. Grand composite curve. Common utility design.

9. Combined utilities: Utility Grand composite curve. Combined G.C.C. . Optimum utility scheme. Complex utilities [furnaces].

9b. Work and CHP: Integrating shaftwork: ηC vs ΔH curves [Low T ref eferen]

10. The Pinch: Pinch. Pinch Principle. Pinch Design Method. Multiple Pinches. Quasi-Pinch. No Pinch (threshold problems).

11. Minimum network: Network design overview. Grid diagram. Pinch topology: feasibility criteria. Pinch topology: stream population. Pinch topology: adequacy of efere inertia. Sizing heat exchangers. Auxiliary criterion. Remanent eferent algorithm. Multiple pinches. Threshold problems. Retrofitting.

12. Network development: Optimum vs. Minimum network [Unit area, operability, control, start-up]. Modifying efere. Loops. Paths. Downstream paths.

Extras

Integrating reactors, separation units, evaporators, dryers and cogeneration eferen.

Resources

Classroom slides (pdf):

Part

No

Title

File

Introduction

1

The problem

hi_01_the_problem.pr.pdf

 

2

Approach

hi_02_approach.pr.pdf

Analysis

3

The two-streams problem

hi_03_two_streams.pr.pdf

 

4

Multiple streams

hi_04_multiple_streams.pr.pdf

 

5

Process heat flows

hi_05_process_heat_flows.pr.pdf

 

6

Data extraction

hi_06_data_extraction.pr.pdf

 

7

Cost estimation

hi_07_cost_estimation.pr.pdf

Synthesis

8

Utilities

hi_08_utilities.pr.pdf

 

9

Combined utilities

 

 

9b

Work and CHP

 

 

10

The pinch

hi_10_pinch.pr.pdf

 

11

Minimum network (part 1)

hi_11_minimum_network_part1.pr.pdf

 

12

Network development

 

Application Examples:

Part

No

Title

Proposal

Other files

Analysis

1

Two-streams heat recovery

hi_app_examp_01.pdf

 

 

1ª

Two-streams heat recovery

hi_app_examp_01ª.pdf

 

 

2

Matching several streams

hi_app_examp_02.pdf

hi_app_examp_02.xls

 

3

Building composite curves

hi_app_examp_03.pdf

 

 

4

Minimum heating and cooling

hi_app_examp_04.pdf

 

 

5

Composite curves forms

hi_app_examp_05.pdf

 

 

6

Composite curves analysis

hi_app_examp_06.pdf

 

 

7

Problem Table Algorithm

hi_app_examp_07.pdf

 

 

8

Problem Table Algorithm

hi_app_examp_08.pdf

 

 

9

Problem Table Algorithm

hi_app_examp_09.pdf

 

 

10

Data extraction

hi_app_examp_10.pdf

 

 

11

Data extraction

hi_app_examp_11.pdf

 

 

12

Cost estimation

hi_app_examp_12.pdf

 

 

13

Cost estimation

hi_app_examp_13.pdf

 

 

14

Cost estimation

hi_app_examp_14.pdf

 

 

18

Synthesis

hi_app_examp_18.pdf

 

 

19

Synthesis

hi_app_examp_19.pdf

 

 

20

Synthesis

hi_app_examp_20.pdf

 

 

21

Synthesis

hi_app_examp_21.pdf

 

Problems (old problems, in spanish):

·        In-house

·        From A. Jiménez book (see bibliography)

Seminars:

·        Seminar 28/11/2011

Tools:

Basic bibliography:

·        Chemical Process Design
Robin Smith. McGraw-Hill, 1995
ISBN-10: 0070592209 – ISBN-13: 978007059220

·        Diseño de Procesos en Ingeniería Química
Arturo Jiménez. Reverté (2003)
ISBN: 8429172777 – ISBN-13: 9788429172775

Complementary bibliography:

·        User Guide on Process Integration for the Efficient Use of Energy
Linhoff, B. et al.. Institution of Chemical Engineers, 1994
ISBN 10: 0852953437 – ISBN 13: 9780852953433

·        Conceptual eferente Chemical Processes.
J.M. Douglas. Chemical Engineering Series. McGraw-Hill, 1988
ISBN: 9780070177628

Assessment

Rating :

Final grade is composed by the efere two contributions:

1.   Development along the course of 2 practical exercises (1 individual, 1 groups), which account for 50% of the final grade

2.   Written exam, which constitutes the remaining 50% ; it is compulsory to overcome this test to pass the course. The test will consists of a single eferent similar to those addressed efere the course, developed along 2-3 hours; any reference material is allowed.

First call

Wednesday, 18 January 2012, 9 am, classroom not assigned.

Grades | Exam review: 2 February 2012, 13:00, offices in first floor of Alfonso VIII

Second call

Wednesday, 4 July 2012, 16 pm, classroom not assigned.

Grades | Exam review:

Tests of previous calls :

Call

Files

Feb/10

Proposal | Solution | Solution (printing)

Dec/10

Proposal

Assignments

 

Kind

Proposed

Collected

Files

1

Individual

24-Oct-2011

14-Nov-2011

Proposal

2

Groups

14-Dec-2011

18-Jan-2012

Proposal | Solution

.

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