Mass transfer operations for the practicing engineer:
Gespeichert in:
Beteiligte Personen: | , |
---|---|
Format: | Buch |
Sprache: | Englisch |
Veröffentlicht: |
Hoboken, NJ
Wiley
2010
|
Schriftenreihe: | Essential engineering calculations series
|
Schlagwörter: | |
Links: | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018981091&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018981091&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA |
Umfang: | XVI, 630 S. Ill., graph. Darst. |
Internformat
MARC
LEADER | 00000nam a2200000 c 4500 | ||
---|---|---|---|
001 | BV036090481 | ||
003 | DE-604 | ||
005 | 20200218 | ||
007 | t| | ||
008 | 100322s2010 xx ad|| |||| 00||| eng d | ||
015 | |a GBB033295 |2 dnb | ||
020 | |z 9780470577585 |9 978-0-470-57758-5 | ||
035 | |a (OCoLC)699788163 | ||
035 | |a (DE-599)BVBBV036090481 | ||
040 | |a DE-604 |b ger |e rakwb | ||
041 | 0 | |a eng | |
049 | |a DE-11 |a DE-83 |a DE-634 |a DE-703 | ||
080 | |a UG 2300 | ||
082 | 0 | |a 660.28423 |2 22 | |
084 | |a VN 7101 |0 (DE-625)147602:254 |2 rvk | ||
084 | |a VN 7120 |0 (DE-625)147603:253 |2 rvk | ||
100 | 1 | |a Theodore, Louis |e Verfasser |4 aut | |
245 | 1 | 0 | |a Mass transfer operations for the practicing engineer |c Louis Theodore ; Francesco Ricci |
264 | 1 | |a Hoboken, NJ |b Wiley |c 2010 | |
300 | |a XVI, 630 S. |b Ill., graph. Darst. | ||
336 | |b txt |2 rdacontent | ||
337 | |b n |2 rdamedia | ||
338 | |b nc |2 rdacarrier | ||
490 | 0 | |a Essential engineering calculations series | |
650 | 4 | |a Mass transfer | |
650 | 4 | |a Mass transfer | |
650 | 0 | 7 | |a Stoffübertragung |0 (DE-588)4057696-6 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Reaktionstechnik |0 (DE-588)4136173-8 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Verfahrenstechnik |0 (DE-588)4062781-0 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Trennverfahren |0 (DE-588)4078395-9 |2 gnd |9 rswk-swf |
689 | 0 | 0 | |a Stoffübertragung |0 (DE-588)4057696-6 |D s |
689 | 0 | 1 | |a Reaktionstechnik |0 (DE-588)4136173-8 |D s |
689 | 0 | |5 DE-604 | |
689 | 1 | 0 | |a Verfahrenstechnik |0 (DE-588)4062781-0 |D s |
689 | 1 | 1 | |a Trennverfahren |0 (DE-588)4078395-9 |D s |
689 | 1 | |5 DE-604 | |
700 | 1 | |a Ricci, Francesco |e Verfasser |0 (DE-588)1014969670 |4 aut | |
856 | 4 | 2 | |m Digitalisierung UB Bayreuth |q application/pdf |u http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018981091&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |3 Klappentext |
856 | 4 | 2 | |m Digitalisierung UB Bayreuth |q application/pdf |u http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018981091&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA |3 Inhaltsverzeichnis |
943 | 1 | |a oai:aleph.bib-bvb.de:BVB01-018981091 |
Datensatz im Suchindex
_version_ | 1819312012877889536 |
---|---|
adam_text | An invaluable guide for problem solving in mass transfer operations
This book takes a highly pragmatic approach to providing the principles and applica¬
tions of mass transfer operations by offering a valuable, easily accessible guide to
solving engineering problems. Both traditional and novel mass transfer processes receive
treatment. As with all of the books in this series, emphasis is placed on an example-based
approach to illustrating key engineering concepts.
The book is divided into two major parts. It starts with the principles underlying engineer¬
ing problems —showing readers how to apply general engineering principles to the topic
of mass transfer operations. It then goes on to provide step-by-step guidance for traditional
mass transfer operations, including distillation, absorption and stripping, and adsorption,
plus novel mass transfer processes. Essential topics for professional engineering exams
are also covered.
Geared towards chemical, environmental, civil, and mechanical engineers working on real-
world industrial applications, Mass Transfer Operations for the Practicing Engineer features:
•
Numerous sample problems and solutions with real-world applications
•
Clear, precise explanations on how to carry out the basic calculations
associated with mass transfer operations
•
Coverage of topics from the ground up for readers without prior knowledge
of the subject
•
Overview of topics relevant to ABET (Accreditation Board for Engineering
and Technology) and for those taking the Professional Engineering (PE)
exams
•
Appendix containing relevant mass transfer operation charts and tables
LOUIS THEODORE,
ENG. Sc.D,
formerly a professor of Chemical Engineering for fifty years,
is currently a consultant to Theodore Tutorials in East
Williston, New
York. He is the recipi¬
ent of the prestigious Ripperton Award from the International Air and Waste Management
Association and the American Society for Engineering Education s AT&T Foundation Award
for excellence in the instruction of engineering students. Dr. Theodore is a contributor
to Perry s Chemical Engineers Handbook, the
coeditor
of Handbook of Chemical and
Environmental Engineering Calculations ¡Wiley), the coauthor of Thermodynamics for the
Practicing Engineer (Wiley) and Fluid Flow for the Practicing Chemical Engineer (Wiley)
and the author of Air Pollution Control Equipment Calculations, also from Wiley.
FRANCESCO
RICCI
is the recipient of numerous academic awards and scholarships. Aside
from academic research, Mr. Ricci s industrial experience includes short tenures at Air
Products and Chemicals, Inc. and Bristol-Myers Squibb. He has lectured at the under¬
graduate level on chemical engineering thermodynamics as well as on reactor design. Mr.
Ricci
is the coauthor of Thermodynamics for the Practicing Engineer (Wiley), the author of
the solutions manual for said text, and a contributing author to the
2009
title Introduction
to Environmental Management.
Subscribe to our free Ch
wiiey.com/enewsietters
m
WILEY
i eNewsietter
at
ISBN
=170-0-470-57758-5
90000
AlChE
wufv.com
11?
8047011
57758í
Contents
Preface
xv
Part One Introduction
1.
History of Chemical Engineering and Mass Transfer Operations
3
References
5
2.
Transport Phenomena vs Unit Operations Approach
7
References
10
3.
Basic Calculations
11
Introduction
11
Units and Dimensions
11
Conversion of Units
15
The Gravitational Constant gc
17
Significant Figures and Scientific Notation
17
References
18
4.
Process Variables
19
Introduction
19
Temperature
20
Pressure
22
Moles and Molecular Weight
23
Mass, Volume, and Density
25
Viscosity
25
Reynolds Number
28
pH 29
Vapor Pressure
31
Ideal Gas Law
31
References
35
vii
VIU
Contents
5.
Equilibrium
vs Rate
Considerations
Introduction
37
Equilibrium
37
Rate
38
Chemical Reactions
39
References
40
37
6.
Phase Equilibrium Principles
Introduction
41
Gibb s Phase Rule
44
Raoult s Law
45
Henry s Law
53
Raoult s Law vs Henry s Law
59
Vapor-Liquid Equilibrium in
Nonideal
Solutions
61
Vapor-Solid Equilibrium
64
Liquid-Solid Equilibrium
68
References
69
7.
Rate Principles
_______________________________________________________71
Introduction
71
The Operating Line
72
Fick
s
Law
73
Diffusion in Gases
75
Diffusion in Liquids
79
Mass Transfer Coefficients
80
Individual Mass Transfer Coefficients
81
Equimolar Counterdiffusion
83
Diffusion of Component A Through Non-diffusing Component
ß 84
Overall Mass Transfer Coefficients
87
Equimolar Counterdiffusion and/or Diffusion in Dilute Solutions
88
Gas Phase Resistance Controlling
89
Liquid Phase Resistance Controlling
89
Experimental Mass Transfer Coefficients
90
References
93
Part Two Applications: Component and Phase Separation Processes
8.
Introduction to Mass Transfer Operations
97
Introduction
97
Contents ix
Classification
of Mass Transfer Operations
97
Contact of Immiscible Phases
98
Miscible
Phases Separated by a Membrane
101
Direct Contact of
Miscible
Phases
102
Mass Transfer Equipment
102
Distillation
103
Absorption
104
Adsorption
104
Extraction
104
Humidification
and Drying
105
Other Mass Transfer Unit Operations
105
The Selection Decision
106
Characteristics of Mass Transfer Operations
107
Unsteady-State vs Steady-State Operation
108
Flow Pattern
109
Stagewise vs Continuous Operation
116
References
117
9.
Distillation
119
Introduction
119
Rash Distillation
120
Batch Distillation
127
Continuous Distillation with Reflux
133
Equipment and Operation
133
Equilibrium Considerations
140
Binary Distillation Design: McCabe-Thiele Graphical Method
142
Multicomponent Distillation: Fenske-Underwood-Gilliland (FUG)
Method
161
Packed Column Distillation
184
References
185
10.
Absorption and Stripping
187
Introduction
187
Description of Equipment
189
Packed Columns
189
Plate Columns
196
Design and Performance Equations
—
Packed Columns
200
Liquid Rate
200
Column Diameter
207
Column Height
210
Pressure Drop
224
χ
Contents
Design and Performance
Equations
—
Plate Columns
227
Stripping
235
Packed vs Plate Tower Comparison
241
Summary of Key Equations
242
References
243
11.
Adsorption
245
Introduction
245
Adsorption Classification
247
Activated Carbon
248
Activated Alumina
248
Silica Gel
249
Molecular Sieves
249
Adsorption Equilibria
250
Freundlich
Equation
253
Langmuir Isotherms
253
Description of Equipment
257
Design and Performance Equations
264
Regeneration
283
References
291
12.
Liquid-Liquid and Solid-Liquid Extraction
293
Introduction
293
Liquid-Liquid Extraction
294
The Extraction Process
294
Equipment
295
Solvent Selection
298
Equilibrium
300
Graphical Procedures
301
Analytical Procedures
304
Solid-Liquid Extraction (Leaching)
312
Process Variables
313
Equipment and Operation
315
Design and Predictive Equations
317
References
325
13.
Humidification
and Drying
327
Introduction
327
Psychrometry
and the
Psychrometrie
Chart
327
Humidification
339
Contents xi
Equipment
341
Describing Equations
343
Drying
347
Rotary Dryers
352
Spray Dryers
361
References
369
14.
Crystallization
371
Introduction
371
Phase Diagrams
373
The Crystallization Process
379
Crystal Physical Characteristics
382
Equipment
391
Describing Equations
393
Design Considerations
397
References
404
15.
Membrane Separation Processes
407
Introduction
407
Reverse Osmosis
408
Describing Equations
414
Ultrafiltration 420
Describing Equations
421
Microfiltration 427
Describing Equations
428
Gas Permeation
432
Describing Equations
433
References
437
16.
Phase Separation Equipment
439
Introduction
439
Fluid-Particle Dynamics
442
Gas
-
Solid (G
-
S) Equipment
446
Gravity Settlers
447
Cyclones
449
Electrostatic Precipitators
454
Venturi
Scrubbers
457
Baghouses
461
xii
Contents
Gas-Liquid
(G-L)
Equipment
465
Liquid-Solid (L-S) Equipment
467
Sedimentation
467
Centrifugation
471
Flotation
472
Liquid-Liquid (L-L) Equipment
475
Solid-Solid (S-S) Equipment
477
High-Gradient Magnetic Separation
477
Solidification
477
References
479
Part Three Other Topics
17.
Other and Novel Separation Processes
483
Freeze Crystallization
484
Ion Exchange
484
Liquid Ion Exchange
484
Resin Adsorption
485
Evaporation
485
Foam Fractionation
486
Dissociation Extraction
486
Electrophoresis
486
Vibrating Screens
487
References
488
18.
Economics and Finance
489
Introduction
489
The Need for Economic Analyses
489
Definitions
491
Simple Interest
491
Compound Interest
491
Present Worth
492
Evaluation of Sums of Money
492
Depreciation
493
Fabricated Equipment Cost Index
493
Capital Recovery Factor
493
Present Net Worth
494
Perpetual Life
494
Break-Even Point
495
Approximate Rate of Return
495
Contents xiii
Exact Rate of Return
495
Bonds
496
Incremental Cost
496
Principles of Accounting
496
Applications
499
References
511
19.
Numerical Methods
513
Introduction
513
Applications
514
References
531
20.
Open-Ended Problems
533
Introduction
533
Developing Students Power of Critical Thinking
534
Creativity
534
Brainstorming
536
Inquiring Minds
536
Failure, Uncertainty, Success: Are They
Related?
537
Angels on a Pin
538
Applications
539
References
547
21.
Ethics
549
Introduction
549
Teaching Ethics
550
Case Study Approach
551
Integrity
553
Moral Issues
554
Guardianship
556
Engineering and Environmental Ethics
557
Future Trends
559
Applications
561
References
563
22.
Environmental Management and Safety Issues
565
Introduction
565
Environmental Issues of Concern
566
Health Risk Assessment
568
Risk Evaluation Process for Health
570
xiv Contents
Hazard
Risk Assessment
571
Risk Evaluation Process for Accidents
572
Applications
574
References
591
Appendix
Appendix A. Units
595
A.I The Metric System
595
A.2 The SI System
597
A.3 Seven Base Units
597
A.4 Two Supplementary Units
598
A.5 SI Multiples and Prefixes
599
A.6 Conversion Constants (SI)
599
A.7 Selected Common Abbreviations
603
Appendix B. Miscellaneous Tables
605
Appendix C. Steam Tables
615
Index
623
|
any_adam_object | 1 |
author | Theodore, Louis Ricci, Francesco |
author_GND | (DE-588)1014969670 |
author_facet | Theodore, Louis Ricci, Francesco |
author_role | aut aut |
author_sort | Theodore, Louis |
author_variant | l t lt f r fr |
building | Verbundindex |
bvnumber | BV036090481 |
classification_rvk | VN 7101 VN 7120 |
ctrlnum | (OCoLC)699788163 (DE-599)BVBBV036090481 |
dewey-full | 660.28423 |
dewey-hundreds | 600 - Technology (Applied sciences) |
dewey-ones | 660 - Chemical engineering |
dewey-raw | 660.28423 |
dewey-search | 660.28423 |
dewey-sort | 3660.28423 |
dewey-tens | 660 - Chemical engineering |
discipline | Chemie / Pharmazie |
format | Book |
fullrecord | <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>02177nam a2200505 c 4500</leader><controlfield tag="001">BV036090481</controlfield><controlfield tag="003">DE-604</controlfield><controlfield tag="005">20200218 </controlfield><controlfield tag="007">t|</controlfield><controlfield tag="008">100322s2010 xx ad|| |||| 00||| eng d</controlfield><datafield tag="015" ind1=" " ind2=" "><subfield code="a">GBB033295</subfield><subfield code="2">dnb</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="z">9780470577585</subfield><subfield code="9">978-0-470-57758-5</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)699788163</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)BVBBV036090481</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-604</subfield><subfield code="b">ger</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">DE-11</subfield><subfield code="a">DE-83</subfield><subfield code="a">DE-634</subfield><subfield code="a">DE-703</subfield></datafield><datafield tag="080" ind1=" " ind2=" "><subfield code="a">UG 2300</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">660.28423</subfield><subfield code="2">22</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">VN 7101</subfield><subfield code="0">(DE-625)147602:254</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">VN 7120</subfield><subfield code="0">(DE-625)147603:253</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Theodore, Louis</subfield><subfield code="e">Verfasser</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Mass transfer operations for the practicing engineer</subfield><subfield code="c">Louis Theodore ; Francesco Ricci</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Hoboken, NJ</subfield><subfield code="b">Wiley</subfield><subfield code="c">2010</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">XVI, 630 S.</subfield><subfield code="b">Ill., graph. Darst.</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">Essential engineering calculations series</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mass transfer</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mass transfer</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Stoffübertragung</subfield><subfield code="0">(DE-588)4057696-6</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Reaktionstechnik</subfield><subfield code="0">(DE-588)4136173-8</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Verfahrenstechnik</subfield><subfield code="0">(DE-588)4062781-0</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Trennverfahren</subfield><subfield code="0">(DE-588)4078395-9</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="689" ind1="0" ind2="0"><subfield code="a">Stoffübertragung</subfield><subfield code="0">(DE-588)4057696-6</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2="1"><subfield code="a">Reaktionstechnik</subfield><subfield code="0">(DE-588)4136173-8</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2=" "><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="1" ind2="0"><subfield code="a">Verfahrenstechnik</subfield><subfield code="0">(DE-588)4062781-0</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="1" ind2="1"><subfield code="a">Trennverfahren</subfield><subfield code="0">(DE-588)4078395-9</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="1" ind2=" "><subfield code="5">DE-604</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ricci, Francesco</subfield><subfield code="e">Verfasser</subfield><subfield code="0">(DE-588)1014969670</subfield><subfield code="4">aut</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="m">Digitalisierung UB Bayreuth</subfield><subfield code="q">application/pdf</subfield><subfield code="u">http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018981091&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA</subfield><subfield code="3">Klappentext</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="m">Digitalisierung UB Bayreuth</subfield><subfield code="q">application/pdf</subfield><subfield code="u">http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018981091&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA</subfield><subfield code="3">Inhaltsverzeichnis</subfield></datafield><datafield tag="943" ind1="1" ind2=" "><subfield code="a">oai:aleph.bib-bvb.de:BVB01-018981091</subfield></datafield></record></collection> |
id | DE-604.BV036090481 |
illustrated | Illustrated |
indexdate | 2024-12-20T14:06:38Z |
institution | BVB |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-018981091 |
oclc_num | 699788163 |
open_access_boolean | |
owner | DE-11 DE-83 DE-634 DE-703 |
owner_facet | DE-11 DE-83 DE-634 DE-703 |
physical | XVI, 630 S. Ill., graph. Darst. |
publishDate | 2010 |
publishDateSearch | 2010 |
publishDateSort | 2010 |
publisher | Wiley |
record_format | marc |
series2 | Essential engineering calculations series |
spellingShingle | Theodore, Louis Ricci, Francesco Mass transfer operations for the practicing engineer Mass transfer Stoffübertragung (DE-588)4057696-6 gnd Reaktionstechnik (DE-588)4136173-8 gnd Verfahrenstechnik (DE-588)4062781-0 gnd Trennverfahren (DE-588)4078395-9 gnd |
subject_GND | (DE-588)4057696-6 (DE-588)4136173-8 (DE-588)4062781-0 (DE-588)4078395-9 |
title | Mass transfer operations for the practicing engineer |
title_auth | Mass transfer operations for the practicing engineer |
title_exact_search | Mass transfer operations for the practicing engineer |
title_full | Mass transfer operations for the practicing engineer Louis Theodore ; Francesco Ricci |
title_fullStr | Mass transfer operations for the practicing engineer Louis Theodore ; Francesco Ricci |
title_full_unstemmed | Mass transfer operations for the practicing engineer Louis Theodore ; Francesco Ricci |
title_short | Mass transfer operations for the practicing engineer |
title_sort | mass transfer operations for the practicing engineer |
topic | Mass transfer Stoffübertragung (DE-588)4057696-6 gnd Reaktionstechnik (DE-588)4136173-8 gnd Verfahrenstechnik (DE-588)4062781-0 gnd Trennverfahren (DE-588)4078395-9 gnd |
topic_facet | Mass transfer Stoffübertragung Reaktionstechnik Verfahrenstechnik Trennverfahren |
url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018981091&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=018981091&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA |
work_keys_str_mv | AT theodorelouis masstransferoperationsforthepracticingengineer AT riccifrancesco masstransferoperationsforthepracticingengineer |