Horticulture lighting презентация

Содержание

Types of horticulture lighting Terminology Science behind the spectrum Starting point in choosing LEDs Horticulture Training

Слайд 1Horticulture Lighting


Слайд 2Types of horticulture lighting
Terminology
Science behind the spectrum
Starting point in choosing LEDs

Horticulture

Training

Слайд 3Types of Horticulture Lighting


Слайд 4Green House
Directional High Bay
Rack Lighting
Linear
Inter Lighting
Linear
Applications


Слайд 5Traditional Technologies
Min Height to Canopy
0.167ft / 0.05m
Min Height to Canopy

3.2ft / 1m

DE High Pressure Sodium

Canopy

Florescent Tubes


Слайд 6
DE High Pressure Sodium
Canopy
Typically seen in Greenhouses
Used as supplemental light

10000hr bulb

life
(DE) Double-ended very efficient
Very High PPF
High Uniformity
Large amount of radiated heat

* PPF – Photosynthetic Photon Flux


3.2ft / 1m


Слайд 7
Fluorescent Tube
Canopy
Typically seen in Vertical Applications
Used as a main source

20,000hr

Lifetime
Very economical upfront costs
Good PPFD when placed close
Lot of spill light
Low amount of radiated heat

*PPFD – Photosynthetic Photon Flux Density




0.167ft / 0.05m


Слайд 8Benefits to LEDs
Ability to tune spectrum
Optical control
Higher target efficiency
Low radiated heat
Instant

on/off
No restrike time
Long lifetimes
Lower Maintenance Costs

Слайд 9Terminology


Слайд 10
Light – The only part we care about
Photosynthesis


Слайд 11Refers to the amount of photons that is available for plants

to use in photosynthesis.

Can be calculated by using spd data in the Planck-Einstein Relation.

Micromol

Not Lumens. Photons.


Слайд 12
Spectral range between 400-700nm for which photosynthesis occurs

Often referred to as

a unit, but it is not.
Can refer to either:
PPF – Photosynthetic Photon Flux (μmol·s-1)
PPFD - Photosynthetic Photon Flux Density
(μmol·m-2·s-1)

PPFD being the common reference

Not Lumens. Photons.

Photosynthetically Active Radiation (PAR)


Слайд 13
Photosynthetic Photon Flux (PPF)
PPF is the total amount of micromoles from

the fixture. It is measured in μmol·s-1.

Similar idea to lumens.

Слайд 14
Photosynthetic Photon Flux Density (PPFD)
PPFD is the total amount of micromoles

falling on a specified area.
It is measured in μmol·m-2·s-1.

Similar idea to lux.

Слайд 15

Spill Light
Spill light is wasted light. Therefore it is imperative to

have high target efficiency.

Слайд 16

Spill Light
Putting fixtures next to wall is one common strategy to

increase target efficiency.



Wall 20%
Efficiency


Слайд 17Standard PPFD measurements are performed on a 4x4’ grid at the

manufacturer’s recommended height.

Measurements can go up to 10x10’ grid.

Measurements are performed with a handheld meter, which is why PPFD is commonly used as a performance metric rather than PPF

Unfortunately many of these tests can be center-weighted, which can falsely skew data.

Measurement


Слайд 18Science Behind the Spectrum


Слайд 19Predominately two main approaches for LED Horticulture lights:

Red (660nm) and Blue

(450nm)
Full Spectrum
The current trend of new opportunities

What is the Ideal Spectrum?


Слайд 20

Chlorophyll a & b

Chlorophyll refers to the pigment used to absorb

radiation for photosynthesis. Chl a efficiently absorbs red while Chl b efficiently absorbs blue.

These absorption peaks were the reason why 440-450nm and 660nm are quoted throughout the LED horticulture industry.

455nm

659nm

Red and Blue


Слайд 21Studies were derived from in-vitro on green algae. Higher order plant

organisms differ in response.

In vivo, the probability of a pigment absorbing light absorption depends on:
the specific protein that the pigment is bound to
the orientation of the pigment-protein complex within the cell
the forces exerted by the surrounding medium on the pigment-protein complex.


Red and Blue


Слайд 22Average photosynthetic response of 20+ terrestrial crop plants.

Plants have a broad

photosynthetic response.

Red (620-630nm) have the highest response.

Green (555nm) has similar to better response than blue.

430nm

450nm

630nm

660nm

1971 McCree Curve

Full Spectrum


Слайд 23Photosynthetic action spectra for the green alga Ulva (two cell layers) and higher

plants (multiple cell layers).

Chlorophyll a & b vs McCree Curve


Слайд 24Research is still in its infancy and often conflicting. Many studies

have shown:

Increased yields with white only or supplemental green light

Higher penetration of green light through the canopy

Higher photosynthetic efficiency under saturated light

“Green Is Useless” – Inaccurate


Слайд 25Full Spectrum Lighting


Слайд 26Starting Point in Choosing LEDs


Слайд 27Traditionally LED solutions focused on 440nm and 660nm (blue and red)

with a supplement of 730nm.

Dynamic shift in the industry to create a broad spectrum based luminaire.

Which LEDs to choose?


Слайд 28Horticulture market has no set methodology as to what is right

and what is wrong. Approaches include:
Red and Blue only
Many discrete colors from UV to IR
White only with higher CRI for the red content
White with supplemental colors (Red and Blue)

Customer is the expert as there are many recipes on the market
XP and XQ footprint offers the most versatility


Which LEDs to choose?


Слайд 29Target LEDs


Слайд 30Target LEDs


Слайд 31Target LEDs


Слайд 32SPD: White LEDs


Слайд 33Royal blue (450nm)
Warm White
Far Red (730nm)
Photored (660nm)
SPD: Color LEDs


Слайд 34Mimic the gold standard at much lower wattage
Similar spd distribution to

HPS
Equivalent performance to a 1000W HPS on a 4x4’ grid, while having identical uniformity
IP67 Sealed
Natural Convection (No Fans)
Modular

Design Goals


Слайд 35Reference Design


Слайд 38Roughly the size of a sheet of paper.
4 Modules used in

fixture.

Size: 11.3x7.2x2.4” (287x183x61mm)
Weight: 5lbs (2.26kg)

Heatsink: Aavid Thermalloy, 62625
Optics: 4x LEDiL CS14130
PCB: SinkPad
TIM: Graftech

LEDs
36 Cree XPG3 4000K, S4, 70 CRI
12 Cree XPE Photored 660nm


Module


Слайд 39Wavelength Distribution
Gavita
Reference Design


Слайд 40Horticulture Reference Design (4x Modules)
Gavita 1000W DE HPS
Typical LED Replacement with

60deg optic

Reference design *Distance depends on optics


Слайд 41XLamp MH Family: Tiny High Bay & LM-80 vs DURIS S

10

Слайд 42Tiny High Bay (LFI Version) - Lower System Cost High Bay
Key

Messaging
Cree LEDs enable a much smaller & lighter solution than using mid-power LEDs
Less metal / smaller size = lower cost
Passively cooled
Seeing is Believing!




Canopy

13,000k lm / 130 LPW / 100W

85% lighter & smaller than DLC comparables

Only 3lbs !


Слайд 43Tiny High Bay - Lower System Cost High Bay


Слайд 44EMC 7070 package
6k hours of LM-80 published Feb 2016
DURIS S 10

(P7LP32.EM) LM-80 Results

Слайд 45LM-80: DURIS S 10 (P7LP32.EM) vs XLamp MHD-G @ 85°C

Ceramic advantage

vs EMC:
Better lifetime at higher temperature & current

Слайд 46Plastic packages tend to degrade faster after 6k hours of LM-80

testing
So there is a chance that DURIS S 10 will not achieve even Reported L70 50k hours @ 85°C!

Will DURIS S 10 (P7LP32.EM) Make Reported L70 50k Hours @ 85°C?


L70 50k target @ 8.5k hours


Слайд 47LM-80: DURIS S 10 (P7LP32.EM) vs XLamp MHD-G @ 105°C
Ceramic advantage

vs EMC:
Better lifetime at higher temperature & current

No OSRAM DURIS S 10 data @ 105°C!!


Слайд 48OSRAM DURIS S 10 (P7LP32.EM) vs XLamp MHD-G: LM-80 Position


Слайд 49XLamp MH Family LM-80 Testing Summary


Слайд 50Brighter XLamp MK-R LED


Слайд 51XLamp MK-R White Standard Order Codes
Minimum luminous flux @ 700mA, 85°C

(lm)

For a complete listing of available order codes, refer to the Binning & Labeling document






Слайд 52LM-80 Updates


Слайд 53XLamp CXA2 Family LM-80 Summary
All LED currents shown at 36V, except

3590 at 72V

Слайд 54XLamp CXA2 Family TM-21 Lifetime (CXB3050)
Notes:
Results for tested model (CXB3050) applied

to other arrays per ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.


Слайд 55XLamp CXA2 Family TM-21 Lifetime (CXB3050)
Notes:
Results for tested model (CXB3050) applied

to other arrays per ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.


Слайд 56XLamp CXA2 Family TM-21 Lifetime (CXB2530)
Notes:
Results for tested model (CXB2530) applied

to other arrays per ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.


Слайд 57XLamp CXA2 Family TM-21 Lifetime (CXB2530)
Notes:
Results for tested model (CXB2530) applied

to other arrays per ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.


Слайд 58XLamp CXA2 Family TM-21 Lifetime (CXB3590 72V)
Notes:
Results for tested model (CXB3590

72V) applied to other arrays per ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.


Слайд 59XLamp CXA2 Family TM-21 Lifetime (CXB3590 72V)
Notes:
Results for tested model (CXB3590

72V) applied to other arrays per ENERGY STAR array scaling guidelines
These extrapolations are for informational purposes only and are not a warranty or a specification.
Extrapolated lifetimes are subject to change without notice.


Слайд 60XLamp XHP70 LM-80 Testing Summary


Слайд 61XLamp XP-L LM-80 Testing Summary





Слайд 62XLamp MH Family LM-80 Testing Summary




Слайд 63XLamp XHP35 LM-80 Testing Summary



Слайд 64XLamp XHP50 LM-80 Testing Summary


Слайд 65XLamp XT-E LM-80 Testing Summary




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