Photovoltaics (PV) (Monocrystalline/polycrystalline (or multicrystalline))


[edit]
Description Titanium dioxide pigments in interior paint induce a photo catalytic oxidation, i.e. a reversion of photosynthesis, induced by UV rays or, for some coatings, artificial light. This reduces pollutants (e.g. formaldehyde and solvents), odour and microorganisms through breaking them down into harmless carbon dioxide and water molecules, which improves air quality. New forms of silica bonded photocatalytic paint prevent the strong chalking that this oxidation induces regarding conventional forms of photocatalytic paint.
Advantages

Relatively simple improvement of room hygiene

Disadvantages
  • No reduction of pollution caused by inorganic materials. Chalk, for instance, can destroy the “easy-to-clean” effect of walls painted with photocatalytic paint. Making them harder to clean compared to those walls painted with conventional paint.
  • For some coatings oxidation only occurs for UV light. The availability of UV light, however, is often restricted indoors.
Characteristic features

Architectural paints that are photo catalytic active.

Application barriers

Long-term erosion

Information sources http://ecogreen-plus.com/Pages/Howphotocatalyticworks.aspx
Image
Trade: Envelope (facade)
Parameter Minimal Value Maximal Value Unit
Quantity of Modules

PCs

Cell Efficiency

13.25

25

%

Panel Efficiency

10.60

16.9

%

Annual Degradation Rate in Panel Efficiency (Estimated Lineal Degradation)

%

Annual Energy Yield

kWh/m2

Dimensions

280/210/17

1956/992/50

L/W/H in mm

Weight

1.2

25.8

kg

Surface Area

m2

Maximum Load

5,400

Pa

Nominal Power Pmax

5

335

Wp

Open Circuit Voltage Voc

21.45

48.20

V

Short Circuit Current Isc

0.33

9.65

A

Maximum Power Voltage Vmp

16.90

37.5

V

Maximum Power Current Imp

0.29

9.28

A

Normal Operating Cell Temperature NOCT

43

47

°C

Power Temp. Coeff (W/°C)

-0.55

-0.41

%

Current Temp. Coeff (Isc/°C)

0.037

0.08

%

Voltage Temp. Coeff (Voc/°C)

-0.34

-0.33

%

Maximum System Voltage

600

1000

V

Maximum Current for Safety Design Purpose Maximum Current

A

Operating Efficiency

%

Annual Degradation Rate in Efficiency

%

Annual Produced Energy

kWh

Investment Cost

0.52

0.92

€/W

Operating Cost

1

% of plant price/year

Replacement Cost

1,157

Life Expectancy

25

30

years

Deterioration Description
Causes
Parameter
Degradation Rate
Measurement


The Design4Energy project aims to address evolutionary life-cycle evolutionary design methodology able to create energy-efficient buildings flexibly connected with the neighbourhood energy system. BrokenWall.JPG
BL(Ti)=0.788
Equation.JPG


pCghffhfhart


Renewable Energy Technologies

2 2 2