BOILING HEAT TRANSFER AND BOILING EQUIPMENT
A Five Day Short Course in Lausanne,
Switzerland (October 8-12, 2012)
COURSE DESCRIPTION
Boiling is an essential
basic
operation in thermal sciences. It is the most effective heat
transfer
method because of its high performance due to latent heat
transport,
thus allowing to reduce size, weight and volume of heat
exchange
devices and improve the thermal performance of components for
the
process industry and power plants. Therefore, boiling heat
transfer
plays a very important role for a wide number of applications
in many
technological and industrial areas, including energy
production. As an
example, subcooled boiling heat transfer can accommodate very
high heat
fluxes, and this can be suitably employed in the cooling of
some
components for fusion reactors, where it is required to remove
up to
10-15 MW/m2. Furthermore, very compact heat exchangers can be
manufactured thanks to the high heat transfer rate obtained
with
boiling heat transfer. Steam generators can be better designed
if the
boiling process is known in details, thus improving the
thermal cycle
and the plant efficiency.
The objective of this course is to provide the participants
with
today’s detailed knowledge on the boiling heat transport
mechanisms
based on recent research results and the most updated methods
for the
prediction of boiling heat transfer, its enhancement, and its
applications to technological and industrial areas. Specific
attention
will be paid to the description and prediction of the critical
heat
flux, which represents the upper limit of the boiling heat
transfer and
has to be avoided for safety reasons. Boiling of mixtures,
which is of
paramount importance for industrial applications such as
retrofitting
of existing plants will be treated exhaustively. Application
to compact
heat exchangers will be dealt with special care in view of the
industrial interest towards this component, while the very
recent
application of boiling heat transfer to microscale, including
microstructured surfaces, which allow very high heat transfer
rates for
specific applications, will be treated in great detail.
The course is addressed to scientists, professionals,
engineers and
graduate students in the several fields of Engineering,
Applied and
Fundamental Sciences with specific interest in phenomena
involving
boiling (process industry, refrigeration industry, energy
production,
heat exchanger manufacturers, etc.) who want to get acquainted
with the
traditional background and the most recent developments of
this
discipline.
COURSE
LECTURERS
John R. Thome (Course
Coordinator,
6
lectures) is Professor of Heat and Mass Transfer at
the Swiss Federal Institute of Technology in Lausanne (EPFL),
Switzerland, where his primary interests of research are
two-phase flow
and heat transfer in microscale and macroscale processes. He
received
his Ph.D. at Oxford University (1978) and from 1984 to 1998
ran his own
international engineering consulting company. He is an author
of four
books: Enhanced Boiling Heat Transfer (1990), Convective
Boiling and
Condensation, 3rd Ed. (1994), Wolverine Engineering Databook
III (2004)
and Nucleate Boiling on Microstructured Surfaces (2008). He
received
the ASME Heat Transfer Division's Best Paper Award in 1998 for
his work
on flow boiling heat transfer, the JE Hall Gold Medal from the
UK
Institute of Refrigeration, the ASME Heat Transfer Memorial
Award in
2010 and one of his students worn the 2008 Eurotherm Prize
2008 for
Best Ph.D. Thesis He has published extensively on boiling and
two-phase
flow.
Lectures content -
Flow
patterns map in horizontal and vertical tubes, heat transfer
models
based on flow patterns, pool boiling in liquid mixtures,
forced
convective boiling in liquid mixtures, critical heat transfer
in liquid
mixtures, models for heat transfer in pool and flow boiling of
mixtures, flow boiling in microchannels, differences between
microscale
and macroscale in flow boiling in tubes, flow patterns in
microchannels, modelling of flow boiling in microchannels.
Gian Piero Celata (7 lectures) is
Director
of the Division of Advanced technologies for energy and
industry at the Italian national research center ENEA and
is
honorary chair of the European Two-Phase Flow Group among his
many
international appointments. He is the President of the UIT,
Italian
Union of Thermal-Fluid Dynamics, and vice-President of the
World
Conference on Experimental Heat Transfer, Fluid Mechanics and
Thermodynamics, and member of several international
associations. He
received the JSMF Award in 2003, the ICHMT Fellowship Award in
2009,
and is a Member of the European Academy of Sciences and Arts.
He is a
world expert on measurement and prediction of critical heat
fluxes in
flow boiling, giving many keynote lectures and seminars, and
publishing
extensively, and has done in recent years extensive research
on
single-phase flow and boiling heat transfer in microchannels
boiling
(he edited a book published by Begell House and gave many
lectrues and
seminars), flow boiling and quenching at zero gravity. He is
also very
well known for the numerous international research conferences
he has
organized and chaired and he has edited numerous books. He is
the
Editor-in-Chief of Experimental Thermal and Fluid Science
Lectures content -
Generalities on flow boiling, flow regimes, void fraction,
two-phase
frictional pressure drop, subcooled and saturated flow boiling
in
circular tubes, critical heat flux in subcooled flow boiling,
critical
heat flux in saturated flow boiling, predictions methods for
the
subcooled flow boiling CHF: correlations and mechanistic
models,
predictions methods for the saturated flow boiling CHF:
correlations
and mechanistic models, post-CHF heat transfer, augmentation
of CHF and
post-CHF heat transfer, boiling of mixtures, flow boiling in
microgravity.
Paolo Di Marco
(6
lectures) is
Professor of Engineering
Thermodynamics and Heat Transfer, Department of Energetics,
Faculty of
Engineering, University of Pisa. He received his PhD in
Nuclear
Engineering in 1989 at the University of Pisa. His research
interests
include single-phase and boiling heat transfer, bubble
dynamics, heat
transfer in microgravity, effect of electric fields on heat
transfer,
instability in boiling loops, two-phase flow measurements. His
main
field of activity is the study of the effect of force fields
on boiling
heat transfer and bubble dynamics, conducted through many
experimental
campaigns in microgravity conditions, ranging from parabolic
to
satellite flights. He took part in the organization of several
international conferences, giving also invited lectures, and
he is
member of several international associations.
Lectures content -
Generalities on pool boiling: boiling curve, phase equilibria,
transport properties and equations; surface tension,
equilibrium on a
curved interface. Basic mechanisms in nucleate pool boiling:
nucleation, bubble growth in the fluid and at the wall, bubble
detachment, Marangoni convection. Heat transfer mechanisms in
nucleate
boiling. Nucleate boiling correlations. Critical heat flux in
pool
boiling: mechanisms and correlations. Parametric effects in
boiling;
effect of force fields: gravity and electric field.
Peter Stephan (7
lectures)
is Professor of Technical Thermodynamics
and head of the eponymous institute at Darmstadt University of
Technology. He was a Marie-Curie Research Fellow at the EC
Joint
Research Centre in Ispra, Italy, from 1989 to 1992, and
received his
PhD in 1992 at the University of Stuttgart. From 1992 to 1997
he was
working as a senior process engineer and R&D manager in
the
Daimler-Benz group. Since 1997 he is at Darmstadt University
of
Technology. His main fields of research are boiling heat
transfer,
microscale heat and mass transfer, interfacial phenomena, heat
pipe
technology, drying and freezing processes. Specific interests
lie in
multiscale approaches and the combination of numerical and
experimental
studies. He received the IIR Sadi Carnot Prize in 1995, SFT
Prize for
Excellence in Heat Transfer Research in 2002, and the Nukiyama
Memorial
Award in 2012. He is president of the VDI Heat and Mass
Transfer
Committee and member of several international
associations.
Lectures content -
Microscale
and multiscale modelling approaches to predict pool boiling
heat
transfer. Description of transport phenomena on different
scales (from
nano- to macroscale). Experimental studies aiming at the
evaluation of
microscale phenomena and the validation of micro- and
multiscale
models. Boiling in microstructured surfaces. Thermocapillary
instability of falling evaporative films. The use of
microstrucured
surfaces to increase the evaporation rate and prevent a local
dryout.
Vishwas V. Wadekar (7 lectures) is Technology Director, HTFS
Research at
Aspen Technology Ltd. In addition to managing HTFS research,
he chairs
the HTFS Industrial Review Panel on Compact Heat Exchangers.
He has
lectured internationally at various conferences as an invited
speaker
and has participated in many international scientific
organising
committees. He has presented numerous training courses in many
countries around the world, related to advances in heat
exchanger
technology, two-phase heat transfer, heat transfer enhancement
technology and compact and other exchanger types. He has been
a
Visiting Scientist at Lehigh University, USA, Visiting
Lecturer at
Nottingham University, England, and Visiting Professor at
Newcastle
University, England and Hamburg University, Germany. He is an
active
member of AIChE, currently serving on the Executive Board of
Transport
and Energy Processes Division of AIChE as a Director. He is
also serves
on the Editorial board of journals dealing with heat exchange
engineering.
Lectures
content - Passive and active methods, flow boiling in
advanced
geometries, flow boiling in compact heat exchangers:
evaluation of the
boiling heat transfer performances of different compact heat
exchangers, flow boiling in multichannels, flow boiling
instabilities,
external flow boiling in tube bundles.
COURSE TIMETABLE
(provisional)
COURSE LOCATION
AND
TRAVEL INFORMATION
(The
location
of the EPFL lecture room will be sent by e-mail before the
course)
The course will be held on the campus of
the Swiss Federal Institute of Technology Lausanne (EPFL)
located in
Lausanne, Switzerland (see website at www.epfl.ch for information
on the
university, site maps, road maps, etc.).
The course will be held in building ME in the meeting room ME
B10. This building is to the right (east) of the center
square of
the EPFL campus. This building is just off the center square
of the
EPFL campus to your right and the same level as the
square...going
through door in north-east corner of the square, turn right
and then
turn right again at the first corridor...ME B10 is a few doors
down on
your right. To locate and print a map of campus with the room
and
building ME, go here.
Please see the map1 of
the EPFL
(showing also the metro stop) and a map2
indicating the building ME
and
the class room.
The EPFL website also allows you to input the class room
number and
print out a map indicating its location on campus.
Participants should
arrive in time for the registration period on Monday beginning
at 9:00.
Lausanne is easily reached within Europe by train (see website
of Swiss
railroad www.cff.ch
for train schedules to/from Lausanne), by air (nearest airport
is
Geneva and this airport has direct trains to Lausanne, about 4
per hour
of 50 minute duration, see previous website for schedules) and
by car.
The EPFL is easily reached (see attached map3) by the TSOL tram line
from
the city center (get on at FLON and get off at EPFL stop - the
black-red-white
dot…do not get off at the UNIL stops!). This tram
departs about
every 8 minutes and takes about 15 minutes from the city
center to the
EPFL stop (purchase ticket on platform from machine before
boarding the
tram or at the ticket office at FLON). Obtain information to
get to the
FLON station at your hotel. If you reside in a hotel in Ouchy
(part of
Lausanne on Lake Geneva), you need to take a tram from the Ouchy
station to get to FLON
(your hotel can give you information). Limited parking (paid)
at the
EPFL is available in an underground garage (follow signs from
main
entrance)…recommend arriving by tram or taxi. The Lausanne
city website
is available at www.lausanne-tourisme.ch
COURSE
REGISTRATION
AND INSCRIPTION FEE AND HOTEL RESERVATION
COURSE INSCRIPTION FEE: 1490 Swiss francs for each
participant, except for Ph.D. students entitled to a reduced
fee of 1190 Swiss francs per
person.
Registration is now open and deadline is October 1. Corse
cancellation will
be charged a 30%
cancellation
fee up to 2 weeks
before the
course and 50% up to
the
starting day. Hotel and travel may have other cancellation
fees.
HOTEL
AND
TRAVEL: Book your hotel room this year directly with
the
course host, TechTravel,
who is holding rooms
at special rates for the
participants. TechTravel is prepared make a package of travel,
hotel and
course fee all in one payment/invoice or to invoice just your
course fee
separately. TechTravel will accept your payment by either bank
transfer
or by credit card...payment
information
will be on their invoice.
To register and book your hotel and travel, download and
complete the
following form (pdf
; word)
and e-mail it to both:
* TechTravel (reza.nafissy@techtravel.ch)
* Prof. Thome (john.thome@epfl.ch)
Prof. Thome will confirm your
place in
the course while TechTravel will
contact you for sending the invoice for the course and/or
travel/hotel.
The exchange rate from Swiss
francs to
euro is about 1.2 CHF to one euro.
CONTACT PERSON
AND
COURSE COORDINATOR
Prof. John R. Thome:
Laboratory of
Heat and Mass Transfer (LTCM), École Polytechnique
Fédérale de Lausanne (EPFL), CH-1015 Lausanne,
Switzerland
Tel: (+41 21) 693 59 81/82, Fax: (+41 21) 693 59 60; E-mail: john.thome@epfl.ch
COURSE
HOST
AND TRAVEL AGENT
Reza Nafissy: Tech
Travel
Sàrl, Station 10, EPFL, CH-1015 Lausanne, Switzerland
Tél: +41 21 693 49 99; Fax: +41 21 693 49 90; E-mail:
reza.nafissy@techtravel.ch
GPC©2012