mb energy engineer portfolio
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Hello!
I am a graduate energy and environmental engineer from Italy.
I have always been passionate about renewable energies, clean technologies and innovation. My study path allowed me to achieve knowledge in many different fields of energy and environmental engineering.
I have been really interested in most of the subjects encountered during my studies, from electrical systems engineering to hydro- and wind power systems, combined heat and power generation plants, building services, technologies and production processes for energy efficiency, functional mechanical design and many others.
I love to travel and get to know new people, cultures, places and working environments.
My ambition for my professional career is to contribute with my passion, knowledge and skills in achieving effective and sustainable solutions for the issues of environment and humanity.
CONTENTS
Impact of lighting control systems based on “Non-Image Forming” effects of
light on electric lighting energy demand and user’s comfort and performance
CHP generation plant design
Design and simulation of lighting and energy performance in a classroom
HVAC system design
Dynamic building performance simulation
Solar Impulse: around the world on a 100% sun-powered airplane
MASTER PROJECT
PERSONAL Resumé
COURSE WORK
MASTER THESIS EPFL SWITZERLAND, 2016
Impact of lighting control systems based on “Non-Image Forming” effects of
light on electric lighting energy demand and user’s comfort and performance
Thesis supervisors: Andrea Gasparella (unibz)
Jean-Louis Scartezzini (epfl) Link to SlideShare
Light has an impact not only on our visual comfort and performance, but also on
our behaviour and physiology. It is shown that exposure to light can directly boost
alertness and cognitive performance and also improve our mood. Moreover, it
plays a major role in entraining our circadian clock. These non-visual effects of
light are called ”Non-Image Forming” (NIF) effects and depend on different
characteristics of light exposure, such as spectrum, intensity, timing, duration,
history.
Considering NIF effects in lighting of working environments such as offices can be
very important to improve well-being, performance and productivity of the users.
APPROPRIATE LIGHTING
CONDITIONS
HEALTH & WELL-BEING
ALERTNESS PERFORMANCE PRODUCTIVITY
OFFICE LIGHTING STRATEGY
ENERGY SAVING
NIF EFFECTS (ALERTNESS + PERFORMANCE)
VISUAL COMFORT AND PERFORMANCE
THE GOAL OF MY PROJECT:
• to develop, implement and assess an office lighting strategy
that values the well-being and comfort of the office
occupants, ergo enhancing their alertness and performance,
while minimising the electric energy demand.
NIF effects of light are considered in control algorithms used
for automatic regulation of the shading and electric lighting in
an office environment.
I developed the control algorithm in MATLAB.
M.L. Ámundadóttir1, M.A. St. Hilaire, S.W. Lockley, M. Andersen Modelling dynamic aspects of the non-visual responses to light
MOTIVATION AND GOAL
EXPERIMENT SET-UP
HDR vision sensor
Ev [lux] DGP [%]
Artificial lighting
shading
Daylight Controller
• I was able to adopt a user-centric approach thanks to one of the main innovations of my work: a novel HDR vision sensor used for ”on-the-fly” assessment of lighting conditions (vertical illuminance Ev) and glare indices (Daylight Glare Probability DGP).
• The sensor is integrated in the controller of an office room in the LESO-PB experimental building (Laboratory of Solar Energy and Building Physics) in the Swiss Federal Institute of Technology in Lausanne.
Room 1: Advanced controller • HDR vision sensor
Room 2: Reference controller • ceiling mounted luminance meter • based on standard requirements for
visual comfort (300 lux on workplane)
ADVANCED LIGHTING AND SHADING CONTROL SYSTEM
e
Ev & DGP
shading
lighting
Lighting pattern
HDR vision sensor
Target values
Ev & DGP
Clock time
Data acquisition (DAQ)
State of room and user
Controller
A Fuzzy Logic Controller (MATLAB Fuzzy Logic Toolbox) is
used for regulating the motorized shading system.
Afterwards, the controller adjusts the electric lighting in
order to provide the complementary vertical illuminance,
necessary to reach the target level.
FUZZY LOGIC CONTROLLER
• eDGP • eEv • sun zenith angle
shading position
Dynamic lighting protocol designed to:
• enhance alertness and performance with appropriate LIGHTING LEVEL at correct TIMING
• decrease electric lighting energy consumption (maximising use of daylight)
• guarantee users’ visual comfort
experimental curve: electric lighting power vs. Ev measured by HDR sensor
CIRCADIAN CRITERIA
High lighting levels DGPmax = 40%
• morning boost • compensate post lunch dip
VISUAL CRITERIA
Lower lighting levels DGPmax = 35%
• facilitate relaxation before lunch and in late afternoon • avoid circadian clock disruption
A subjective experiment with six young human subjects during 12 days in February 2016 was carried out in order to evaluate the performance of
the proposed solution (advanced controller) against the best practice (reference) controller inspired by industry in terms of neurobehavioral performance, visual comfort and acuity, subjective alertness of the occupants, as well as lighting energy consumption.
1
3
5
7
9
8:45 10:45 12:45 14:45 16:45 Su
bjec
tive
slee
pine
ss r
atin
g (1
=ve
ry a
lert
, 9=
very
sle
epy)
Time [hh:mm]
Question 12: Karolinska Sleepiness Scale (KSS)
Advanced Reference
Subjective sleepiness (KSS) (1=very alert, 9=very sleepy)
1
2
3
4
8:45 10:45 12:45 14:45 16:45
Gla
re r
atin
g (1
= p
erce
ptib
le, 4
= in
tole
rabl
e)
Time [hh:mm]
Question 11: How do you consider the glare in this room? (Clear/intermediate sky)
Advanced Reference
Glare rating (1=perceptible, 4=intolerable)
0
5
10
15
20
25
30
35
40
sum of all orientations average of all orientations
Ave
rage
num
ber
of m
ista
kes
Paper-based Landolt Test
Advanced Reference
Visual acuity on paper-based task
Average mistakes: Reference 26 Advanced 30
220
230
240
250
260
270
280
8:45 10:45 12:45 14:45 16:45
Rea
ctio
n tim
e [m
s]
Time [hh:mm]
Psychomotor Vigilance Task
Advanced Reference
PVT reaction times
On average: enhanced performance and visual
comfort of the occupants
NIF effects of light are worth to be considered in
building automation.
FUTURE WORK:
• Longer duration of experiments, more samples
• Participants of different ages
• More powerful lighting equipment
• Variable colour of light (Correlated Colour Temperature)
Reduction of the electric lighting energy consumption by 40% with respect to the reference control system
RESULTS
COURSE WORK (INDEPENDENT) BOLZANO, 2015
Design and simulation of the lighting and energy performance in a classroom
AIM OF THE PROJECT:
• to design the artificial lighting of a classroom in the University of Bolzano and perform the simulation of both lighting and energy consumption.
The considered classroom is the E520 of Bolzano University and it is situated at the fifth floor of the E building.
I created a model of the room using Dialux. Firstly the existing artificial lighting scenario is analysed. Then, a new lighting scenario is
proposed and analysed. The second part of this work involves the daylighting analysis and the building energy performance calculation.
Room model created in Dialux
Used softwares:
DIALUX
DAYSIM
Covered topics:
behaviour of the building envelope and its interaction with daylight
impact of energy needs for artificial lighting
control components and strategies to optimise energy needs and
ensure visual comfort
DAYSIM
LIGHTING AND ENERGY PERFORMANCE SIMULATION (DAYSIM)
Sensor points mesh orientation
Daylight Factor Daylight Autonomy
Continuous Daylight Autonomy
Maximum Daylight Autonomy
2 SIMULATIONS: • static shading device (not movable) • simple dynamic shading device control
calculation of LENI (Lighting Energy Numeric Indicator)
• y = 1.5 m • y = 3.5 m • y = 5.5 m
Sensor points on the workplane
SKETCHUPRoom model
Design of the heating system for a residential building
COURSE WORK (TEAM-BASED) BOLZANO, 2014
Miscelatore termostatico da 1/2"marca: Caleffi mod.: 521400
Ø 1/2"Acciaio Zinc.
N.B.: Dopo la prima stagione di funzionamentopotranno essere effettuati aggiustamenti della
regolazione climatica in funzionedel grado di confort raggiunto
mod.: SystaSolar Aqua
Ø 1"1/4
Ø 1"
Ø 1"1/4
Ø 1"1/4
Ø 1"1/4
Ø 1"1/4
Ø 1/2"
Ø 1/2"
Ø 1"1/4
Ø 1"1/2
Ø 1/2"
Ø 1/2"
Ø 1"
Ø 1"1/4
Accumulo inerziale da 200 litrimarca: CORDIVARI,
mod.: PUFFER VC VT 200Diametro con iso.: 650 mm
Diametro senza iso.: 450 mmAltezza con iso.: 1349 mm
Altezza in raddrizzamento: 1366 mm
Bollittore solare sanitario da 300 litrimarca: CORDIVARI,mod.: Bolly 2 AP 300
Diametro con iso.: 650 mmDiametro senza iso.: 550 mm
Altezza con iso.: 1486 mmAltezza in raddrizzamento: 1622 mm
Ø 1"1/2
Ø 1"1/2
Ø 1"1/2
Ø 1"1/2
Ø 1"1/2
Ø 1"1/2
Ø 1"1/2
Ø 1"1/2
Ø 1"1/2
Ø 1/2"
Ø 1/2"
Ø 1/2"
Ø 1/2"
Ø 1/2"
Ø 1/2"
230
V;
50 H
z
PARADIGMA MODULA NT 25Dimensioni (mm):l=450;h=690;p=450
man
data
risc
alda
men
tom
anda
tabo
llito
read
duzi
one
gas
met
ano
Ø=
18x
1 (r
ame)
rito
rno
bolli
tore
rito
rno
risc
alda
men
to
Sca
rico
con
dens
aØ
= 2
0x2
in P
P
Val
vola
a t
re v
ie
Mor
sett
iera
X12
mor
sett
i 9-1
0
Mor
sett
iera
X12
mor
sett
i 1-2
Ø 3/4"Acciaio SS
Ø 3
/4"
Acc
iaio
SS
Ø 3
/4"
Acc
iaio
SS
Ø 3
/4"
Acc
iaio
SS
Ø 3
/4"
Acc
iaio
SS
AB
BA
Valvola a tre vie, marca: ParadigmaNormalmente posizionata su B-AB
ABITAZIONE
ESTERNOALL'ABITAZIONE
Predisposizione by-pass per futuro addolcitore. Se ne consiglia l'installazione nel caso in cui, in seguito alla verifica della durezza dell'acqua, effettuata
dall'istallatore, il valore rilevato superi i 15° Francesi.
Ø 32x3(Pe-ad)
Ø 1"Acciaio Zinc.
da contatore(da gestore di rete)
by-p
ass
Dosatore di polifosfati da 1,5 mc/hmarca: CILLICHEMIE,
mod.: CILLIT-IMMUNO 153 FG
grup
po r
iem
pim
ento
pret
arat
o a
1,5
bar
Ø 1
/2"
Acc
iaio
Zin
c. Imbuto discarico
33 lt.
3,5 bar
Valvola di sicurezzatipo Caleffi da 6 bar
Sonda solareTWU 2
Sonda solareTWU 1
Anodo
Sonda sanitario WS(55°C)
Imbutodi scarico
Valvola di sicurezza combinata temperatura e pressionemarca: Caleffi, mod.: 309560 completa di pozzetto
(temperatura tarata a 90°C - pressione tarata a 6 bar)
Term
omet
roTe
rmom
etro
dist
ribu
zion
e sa
nita
ria
acqu
a fr
edda
pian
o se
min
terr
ato
Ø 2
0x2,
5M
ultist
rato
dist
ribu
zion
e sa
nita
ria
acqu
a fr
edda
pian
o te
rra
dist
ribu
zion
e sa
nita
ria
acqu
a fr
edda
pian
o pr
imo
Ø 1
"Acc
iaio
Zin
c.Ø
20x
2,5
Mul
tist
rato
Ø 2
0x2,
5M
ultist
rato
Ø 1
/2"
Acc
iaio
Zin
c.
relè n.a.
(230
V;
50 H
z)
relè n.c.
Termostatotarato a 35°C
TIM
ER
Ret
e di
rici
rcol
o
Ø 1
6x2
Mul
tist
rato
Ø 1
6x2
Mul
tist
rato
dalla
ret
e di
ric
ircol
opi
ano
prim
o
dalla
ret
e di
ric
ircol
opi
ano
terr
a
dalla
ret
e di
ric
ircol
opi
ano
sem
inte
rrat
oØ
16x
2M
ultist
rato
Ø 2
0x2,
5M
ultist
rato
Ø 2
0x2,
5M
ultist
rato
Ø 1
"Acc
iaio
Zin
c.
dist
ribu
zion
e sa
nita
ria
acqu
a ca
lda
pian
o pr
imo
dist
ribu
zion
e sa
nita
ria
acqu
a ca
lda
pian
o te
rra
Ø 2
0x2,
5M
ultist
rato
dist
ribu
zion
e sa
nita
ria
acqu
a ca
lda
pian
o se
min
terr
ato
Pompa di ricircoloWilo Star-Z 20/1
Ø 3/4"Acciaio Zinc.
Ø 1
/2"
Acc
iaio
Zin
c.
Ø 1
"Acc
iaio
Zin
c.
Ø 1"Acciaio Zinc.
Ritorno solare Cu 15x1
Mandata solare Cu 15x1
Mandata solare Cu 15x1
Ritorno solare Cu 15x1
Sonda esterna per laregolazione climatica
marca: Siemens, mod.: QAC22
Regolatore elettronico universale,da installare in quadro elettricomarca: Siemens, mod.: RLU220
Alimentato a 24 V
Alimentatoa 24 V
Dai morsetti G-G0-Y
Ai morsetti X1-M
Ai morsetti X2-M
Impostare la miscelatrice:Tm=25°C con Te=15°CTm=35°C con Te=-5°C
Tee da installare in questa posizioneper alloggiamento sonda temperatura
Sonda temperatura ad immersionemarca: Siemens, mod.: QAE2120.010
Valvola miscelatricemarca: Siemens, mod.: VXG44.20-6.3
completa di servomotoremod.: SQS65 Alimentato a 24 V
Relé n.a. 230 V; 50 Hz
Relé n.c.
Wilo-Stratos 25/1-6(1~230 W / 50/60 Hz)
He=2,6 m ; autoprotetta
Termostato di sicurezza(Chiude se T. > 45°C)
Collettore di cemtrale Ø 2" con mandata e ritorno separati.(N.B.: il progettista declina ogni responsabilità
in caso d'installazione di collettore di tipo complanare)
MultistratoØ 16x2
Alimintazioneresistenza elettrica
230 V / 50HzResistenza elettrica
da 700 watt
Termoarredo BAGNOcontatto n.a.
MultistratoØ 16x2
Contatto n.c.
Consenso da microdelle testine
Schema controllo anelli dell'impianto di riscaldamentoe termoarredi dotati di resistenza elettrica dei bagni
Pulsante con temporizzatore per l'accensionedella resistenza dei termoarredi
TermostatoBAGNO
Testine elettrotermichenormalmente chiuse
Dal
tim
er a
tten
uazi
one
tem
pera
tura
TermostatoMAGAZZINO Termostato
W.C.
TermostatoCANTINA
Æ = 26x3Multistrato
Æ = 26x3Multistrato
TermostatoCUCINA
TermostatoBAGNO
TermostatoCAMERA
Testine elettrotermichenormalmente chiuse
COLLETTORE A 12+12 VIEBASSA TEMPERATURA - PIANO TERRA
marca: Emmeti mod.: Topway(in idonea cassetta portacollettore)
Æ = 32x3Multistrato
Æ = 32x3Multistrato
BAGNO
Æ = 26x3Multistrato
Æ = 26x3Multistrato
Testine elettrotermichenormalmente chiuse
COLLETTORE A 7+7 VIEBASSA TEMPERATURA - PIANO PRIMO
marca: Emmeti mod.: Topway(in idonea cassetta portacollettore)
Testine elettrotermichenormalmente chiuse
Relé n.c.
Al pulsantetemporizzato
(Æ = 16x2 Multistrato) al termoarredo W.C.(Æ = 16x2 Multistrato) al radiatore Cantina
Imbutodi scarico
Valvola di sicurezza combinata temperatura e pressionemarca: Caleffi, mod.: 309560 completa di pozzetto
(temperatura tarata a 90°C - pressione tarata a 6 bar)
Relé n.c.
Al pulsantetemporizzato
TermostatoSOGGIORNO
Relé n.c.
Al pulsantetemporizzato
Spessore110 mm
Larghezza2430 mm
Alte
zza
2060
mm
PLASMA 19/50
Termostato tarato a 45°C
rubinetto conportagomma
rubinetto conportagomma
18 lt.
1,5 bar
18 lt.
1,5 bar
I tee dell'impianto segnati col simbolo o dovranno essere realizzati il piu vicino possibile
ai fori del bollitore.
Abita
zione
Cen
trale
Term
ica
Abita
zione
Ø 1
"Acc
iaio
Zin
c.
Termometro
This work was carried out in a small team. Considering a two-storey residential villa located in the country side of a small village on Lake Garda (Italy), the project includes: • Calculation of the building’s thermal power demand for heating and domestic hot water • Heating and domestic hot water system design (all components: storage tanks, boiler, radiant panels, distribution system, etc.) • Thermal solar system sizing (collectors, expansion tank) • Regulation system
Covered topics:
calculation of heating and cooling loads in buildings
operation and design of HVAC systems
HVAC control systems
Hand-made draft of the designed system
radiant panels
Ground and first floor plan with space heating collectors and examples of designed radiant panels
space heating
collectors
Domestic hot water distribution and recirculation network
AUTOCAD
Amongst other skills, this project allowed me to improve my ability in
technical drawing.
The aim of this project is the analysis of behaviour and energy performance of a building envelope. The calculations are done on the villa considered in the previous work presented in this portfolio (HVAC design). This project includes: • Thermal bridges analysis • Critical surface humidity and interstitial condensation evaluation • Lighting analysis (daylight + artificial lighting) • Thermal comfort analysis (with indices PMV and PPD) Covered topics:
building energy balance
psychometric and moisture migration
environmental comfort
THERM
Thermal bridges
ECOTECT
Electric lighting levels
Daylighting levels
Overall lighting levels
LIGHTING MODELLING, ANALYSIS AND SIMULATION
Cogeneration (Combined Heat and Power or CHP) = simultaneous production of electricity and heat
The aim of this project is to choose and analyse two cogeneration plants for two different users: a domestic and a commercial unit.
For each user, the thermal and electric load profiles in winter and summer conditions are given.
The choice of the technologies is based on the analysis of those profiles.
domestic user
commercial user
DATA ANALYSIS
MICRO GAS TURBINE (DOMESTIC USER)
dimensioning of all the components of the plant (heat exchanger, storage
tank, boiler)
Calculation of MGT thermodynamic cycle
p-v diagram T-s diagram
MATLAB +
CANTERA
MANAGEMENT OF THE MGT PLANTThe system operates in thermal priority mode. Generally the electric power is sold to the grid when the production exceeds the demand, while it is bought in case of necessity.
MGT operation with woodgas feedingPrimary Energy Saving (PES) index compares the amount of fuel that is required to produce the desired electric and thermal energy with a separate production and with a cogeneration device. High efficiency cogeneration: PES > 0.
woodgas composition
INTERNAL COMBUSTION ENGINE (COMMERCIAL USER)
Calculation of ICE thermodynamic cycle
p-v diagram T-s diagram
MATLAB +
CANTERA
COMBUSTION ANALYSIS
The combustion of both natural gas and woodgas in the MGT is analysed in terms of thermodynamics and chemical kinetics.
Combustion balance Thermodynamic equilibrium
molar fraction of combustion products as a function of air excess
mixture composition at the thermodynamic equilibrium in the combustion chamber, assuming constant pressure and enthalpy
Adiabatic flame temperature in the combustion chamber
NITROGEN OXIDES (NOX) EMISSIONS AND REMOVAL
The nitrogen oxides NOx are pollutant compounds that have to be controlled in terms of amount of emissions.
natural gas woodgas
CHEMICAL KINETICS
Fuel residence time in the combustion chamber
Solar Impulse: around the world on a 100% sun-powered airplane
RESEARCH WORK (INDEPENDENT) BOLZANO, 2015
This work includes an in-depth study of multiple aspects of the Solar Impulse project that promotes the use of clean technologies and renewable forms of energy, as well as the importance of pioneering spirit.
TECHNICAL CHALLENGES • energy to cross oceans and continents • flying over 35000 km • being as light as a car
Bertrand Piccard & André Borschberg Sources: www.solarimpulse.com; www.bertrandpiccard.com
SOLAR IMPULSE: first airplane of perpetual endurance
able to fly day and night without using any fuel
Sources: www.solarimpulse.com; www.bertrandpiccard.com
Selection of the best materials for STRENGTH and LIGHTNESS
Skeleton of fuselage in carbon fibre tubes
Wingspar: sandwich assembly with carbon fibre and honeycomb structure
17248 mono-crystalline solar cells on 269.5 m2 of surface 340 kWh/day
PROPULSION SYSTEM Energy efficiency: 94%
Speed: 36 km/h to 140 km/h
From sun to propulsion: total efficiency: 16%
ENERGY MANAGEMENT • Light energy from sun: 250 W/m2 on average over 24 hours • 269 m2 of photovoltaic cells • 16% total efficiency of propulsion chain • average power achieved by motors: 11 kW (15 hp)
Energy optimisation fly day and night without fuel
THE FLIGHT CYCLE • equilibrium between potential energy (in the
aircraft height) and electric (chemical) energy (in the batteries)
HUMAN CHALLENGES • up to 5-6 consecutive days in a 3.8 m3 unpressurised and unheated cockpit
Endurance and vigilance
The route around the world
A dream becoming reality…
RESUMÉ
Master degree in Energy Engineering Libera Università di Bolzano, Italy
Bachelor degree in Environmental Engineering Università degli studi di Trento, Italy
Science High School diploma Liceo scientifico A. Maffei, Riva del Garda (TN), Italy
EDUCATION RELEVANT WORK EXPERIENCE
Via Bassinel, 2 37018 Malcesine (VR) Italy martabenedetti@live.com ITA +39 348 892 7252 SUI +41 76 528 9875
SKILLS
RELEVANT COURSEWORK
• Building energy performance simulations
• Energy management • Lighting design and analysis
(Daysim, Dialux) • Programming (Matlab) • Technical drawing (AutoCAD)
• Photoshop • CHP generation plants • Problem solving • Team spirit & strong
interpersonal skills • Ambitious, determined and
competitive
• Thermodynamics • Building physics and its
applications • HVAC systems
• Solar energy systems • District heating and CHP
generation
CAREER INTERESTS• Renewable energy • Energy resources
management • Lighting design engineering
• HVAC systems design • Building services engineering • Energy consultancy
Environmental engineering Intern WSC studio, Trento, Italy
OTHER ACTIVITIESAlpine ski instructor and former athlete Passionate of outdoor sports: watersports, hiking, cycling
CONTACT
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