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REST/EUREC MSc Exam Problem Solutions

As of 5-January-2004

aux.notholt.com/exam

Solar

Wind

Biomass

Hydropower

Resources

Please contact me if you have any question about these results and if you see any error as well :)
jose@notholt.com
(any contribution is welcome as well, but try to send your e-mails as light as possible)

Solar ELP033

99ELP033

Question 1 - [JPG]
a) Voc = 0.435V
b) Vm = 0.3645, Im=0.099A, FF = 0.838
Problems with iteration? go to

Question 2 - [JPG]
a) Lmax = 1.125um
b) Il =515 mA
c) Gabsorbed = 0.9999G

Question 3 - [JPG1] - [JPG2]
a) Utl = 28.66 W/m²K
c) Ul = 3.75 W/m²K

Question 4 - [JPG1] - [JPG2] - [JPG3]
b) i) Uwall = 0.2942 W/m²K
ii) teo = 39.36°C
iii) Tin = 42.27°C

Question 5 - [JPG]

Question 6 - [PDF]
PV: 2 in series x 3 in parallel = 6
Batteries: 2 series x 10 parallel
Note: I need to ask Ralph about this answer.

Question 7

00ELP033

Question 1

Question 2

Question 3 - [JPG1] - [JPG2]
Note: Jamie Cornish's worked results

Question 4

Question 5 - [JPG1] - [JPG2]
Note: Jamie Cornish's worked results

Question 6

Question 7 - [PDF]
a) See PDF
c) ~ 10.307
Note: I tend to use P as irradiation in this PDF, please note this error as the correct notation is G.

01ELP033

Question 1 - [PDF]
b) See PDF
c) ~ 0.032 V

Question 2

Question 3

Question 4 - [PDF]
a) Module 1 is c-Si
b) efficiencies: 10.7% c-Si and 4.9% for a-Si; Performance Ratio: 82.5% c-Si and 92.7% a-Si
c) i) c-Si, ii)a-Si

Question 5 - [JPG]
Note: Jamie Cornish's worked results

Question 6

Question 7

02ELP033

Question 1

Question 2

Question 3

Question 4

Question 5 - [JPG1] - [JPG2]
Note: Jamie Cornish's worked results

Question 6

Question 7

Wind ELP034

99ELP034

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

00ELP034

Question 1

Question 2

Question 3

Question 4

Question 5 - [PDF]
Note: These calculations were done WITHOUT considering any availability factor which is usually considered (0.95) multiply the energy yields by this value to obtain correct results.

Question 6

Question 7

01ELP034

Question 1 - [JPG1] - [JPG2]
Note: Jamie Cornish's worked results

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

02ELP034

Question 1 - [JPG1] - [JPG2]
Note: Jamie Cornish's worked results

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Biomass ELP036

99ELP036

Question 1

Question 2 - [JPG1] - [JPG2]

Question 3 - [JPG]
b) i) V = 150 m³
b) ii) V = 20 m³

Question 4 - [JPG] (includes 3c)

Question 5 - [JPG] (includes 6)

Question 6 - [JPG]

Question 7

Note: Anything in black is a correction

00ELP036

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

01ELP036

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Resources

General

How to iterate in your non-programmable calcs