How improved Air Cargo covers help maintain
quality in food and pharmaceutical supply chain
Presentation for ECSLA/ Cold chain association October 2012, Madrid
Malik Zeniti
1
Agenda
•
The Cool chain problem for global supply chains
•
A potential solution
•
Experiences and results with Tyvek® Air cargo covers
Protection in catering
Protection of from heat or cold with pallet cover
•
Looking ahead
How can an improved product meet requirements in the food supply chain
2
Coolchain Problem: supply chains impacted by temperature
Solar Radiation
Solar radiation on food held in direct
sunlight increases the temperature above
the ambient temperature. The amount of
increase in temperature depends on the
intensity of the radiation, shape and
duration of exposure
Intensity of solar radiation depends upon
latitude, altitude, season, time of day, and
degree of cloud cover.
Airport Latitudes: Tropics
Singapore 1
Airport Latitudes: Temperate
Kuala Lumpur 3
Berlin 52.5
Sao Paolo 23
London 51.5
Abu Dhabi 24
Paris,Luxembourg 49
Miami 25
Madrid 40
Johannesburg 26
Casablanca 33.5
• high temperature is detrimental to food
quality and increases wastage
• in tropical climates considerable
quantities food deteriorate at a rapid rate
Spring Temperatures April 2010
3
3
Trend: Global supply chains for food and Horticulture
Courtesy FBR Wageningen
4
Air freight perishable commodities
Courtesy Seabury group
5
Quality of roses tranpsorted at different temperatures
Courtesy
FloraHolland
Typical logistics chain: 17 days plus 7 days shelf life plus 2 days guarantee
Harvest,cleaning,local transport,air freight,airport,auction, local transport,retail)
Correlation between temperature, respiration and heat generation
The problem:
“Uncontrolled processes”
COLD CHAIN MANAGEMENT CONSULTANCY
7
The problem: summary of common Good Distribution
Practice GDP (audit) findings
Source: UKMHRA
COLD CHAIN MANAGEMENT CONSULTANCY
8
Typical air freight shipment exposed on Tarmac in India
Today most
products are in
cardboard boxes
uncovered or shrink
wrapped
Trial Result
70
60
Temp.
50
40
Scattering
30
20
10
Tyvek
15:53
9:53
13:53
7:53
11:53
5:53
3:53
1:53
23:53
21:53
19:53
17:53
15:53
9:53
13:53
7:53
11:53
5:53
3:53
1:53
23:53
21:53
19:53
17:53
15:53
9:53
13:53
7:53
11:53
5:53
3:53
1:53
23:53
21:53
19:53
17:53
15:53
13:53
0
[source: climate.nasa.gov]
Time
Unnprotected Pallet
Tyvek® Cover
Temperatures of shrink wrapped paletts can reach above ambiant
temperature due to greenhouse effect. Tyvek® can mitigate this effect
9
55
Sun exposure August 18th Luxembourg
w/s average
Test has been performed on 17-20 august 2012
w/w average
50
weather station
ambient tarmac
45
40
35
30
25
20
6:00
23:00
16:00
9:00
2:00
19:00
5:00
22:00
15:00
12:00
Temperature is average of 4 temperature sensors
15
10
Summary: sunny august Summer day Test
•Ambient sun exposed Temperature @ 50°C, direct exposure to sun
•Starting product temperature was about 22°C
•Metallized Tyvek® cover kept the average temperature always under 30°C
•Temperature difference was ca. 7°C for the extreme temperature between
improved Tyvek® WS and classic white Tyvek® WW
11
60
Hot chamber Test (55°
°C) (worst case sensor)
50
40
30
White/White
White/Silver
ambient
= Hot chamber temperature
20
Improvement
Time Gain
of 3 hours
White/Silver
∆T=7.5 hours
10
White/White
∆T≈4hours
12
9:00
8:00
7:00
6:00
5:00
4:00
3:00
2:00
1:00
0:00
23:00
22:00
21:00
20:00
19:00
18:00
17:00
16:00
15:00
14:00
13:00
12:00
11:00
9:00
10:00
8:00
0
Summary: Hot chamber Test
•Ambient Temperature was 55°C, placed in an oven
•Starting product temperature was about 8 deg C
•Improved Tyvek® covers kept the temperature under 30°C for more than 8 h
•Time gain between the two product covers was about 3 hours (worst case for
achieving temperatures below <30 °C)
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Hot chamber Test
•Ambient Temperature was 58°C in an oven with convective heat from the top
•Starting product temperature was about 20°C
•Improved Tyvek® cover for pharmaceuticals kept the temperature under 30°C
for about 8 hours
IR picture
1 m3 Pallet with about 400 l water
with 50% air and 50% water
starting at room temperature
protected by Tyvek® cover for 4.5 h
at 58 deg C
14
30
w/s average
Cold chamber Test
w/w average
ambient
25
20
Improvement Time Gain
For the average temperature
About 2 hours WS vs WW
About 11h to 13h direct exposure
15
White/White
∆T≈14hours
10
5
White/Silver
∆T≈16hours
Temperature is average of 4 temperature sensors
8:00
1:00
18:00
11:00
4:00
21:00
14:00
7:00
17:00
0:00
0
15
White/White
30
Cold chamber Test (top sensor)
White/Silver
ambient
25
20
15
Improvement
Time Gain 11 hours
∆T≈29hours
For worst case
White/White
∆T≈18 hours
For worst case
10
5
6:00
4:00
2:00
0:00
22:00
20:00
18:00
14:00
12:00
10:00
8:00
6:00
4:00
2:00
0:00
22:00
20:00
18:00
16:00
16:00
White/Silver
∆T≈33hours
0
16
30
White/White
Cold chamber Test (worst case sensor bottom)
White/Silver
ambient
25
20
15
White/White
∆T≈3 hours
10
5
White/Silver
∆T≈3 hours
6:00
4:00
2:00
0:00
22:00
20:00
18:00
16:00
14:00
12:00
10:00
8:00
6:00
4:00
2:00
0:00
22:00
20:00
18:00
16:00
0
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Summary: Cold chamber Test at 5 deg C
•Ambient Temperature exposure of the pallets was 5°C, in a cold chamber
•Starting product temperature was about 25°C
•Improved DuPont™ Tyvek cover kept the temperature over 15°C for about 33
hours
•Time gain between the Improved Tyvek® cover for pharmaceuticals and classic
white Tyvek® cargo cover was about 50% or 11 hours (maintain above 15 °C)
•There can be significant differences between bottom of pallet and top
•Products taken to a fridge take many hours to reach 5 deg C !!!!!
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Cargo Covers for pharmaceuticals and food
Customer Benefits
• Unique reflective property provides up to several hours of
protection against solar radiation and damaging effects of the heat
• Improve cover provides up to 3 h more thermal protection vs.
Classic Tyvek® covers.
• Compliant with EASA safety specifications on flame resistance
• No return logistics when used one time
• Easy, time-saving to install - 1 to 2 minutes
• 1 Piece Tyvek® Air Cargo cover, no taping or sealing required
• Bottom piece available for additional contamination control
• Patent pending technology
• Extremely lightweight, folds into small package
• Euro pallet cover - less than 1.0kg for 1.6 m height
• PMC ULD cover – less than 3.5kg for 2.4 m height
PMC Flight Pallet
Euro Pallet
Potential solution for coolchain: Tyvek® Air Cargo Cover
Tyvek® unique fiber structure reflects > 90% of solar spectrum
PTSP Mandatory label
according to IATA for
airfreight since
July 1st 2012
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Protection of Perishables & Temperature sensible products
Operational aspects examples in catering and flowers
Video Euro pallet installation
Video PMC Q6 installation
Catering see also: DuPont Corporate add
Welcome to the Global Collaboratory™
DuPont™ Tyvek® Reduces Food Waste During Transport
http://goo.gl/VG3qo
or
www.youtube.com/dupont
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ULD Unit load devices
ULD covered with Tyvek® Air Cargo cover
ULD with Tyvek® Air cargo cover on Lower
deck
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Performance Data
Unit Load Device cover Inside Temperature Test
80
Uncovered
ULD
Covered ULD
60
40
20
50
40
30
20
10
0
Temperatur
e °C
Temperature °C
Average Top Surface Temperature
100
0
-20
30
80
130
West Side Wall Surface
Temperature
Uncovered ULD
Covered ULD
-20
180
30
80
130
180
Time (min)
Time (min)
15-20 deg C difference
Average Internal Air Temperature
Temperature °C
50
40
30
Uncovered ULD
20
Covered ULD
10
0
0
20
40
60
80
100
120
140
160
180
Time (min)
Test of Tyvek® Air Cargo cover on ULD outside
reported by Georgia Tech during a cold chain Forum 2012
23
Cold temperature performance: How to avoid freezing?
• To quantify the level of protection by
an Air cargo cover when sensitive perishable
Products transitions from a warm (25 C) to a
cold environment (-20 C)
• The elapsed time was measured before a
product reaches freezing point
24
Air Cargo Covers offer protection against cold 25 deg C to - 20 Deg C
Test Results - Tyvek® cover vs. No cover at (– 20) Deg C
Te m p e rat u re °C
Product Temperature (1/3 up the core)
25
20
15
10
5
0
-5
-10
-15
-20
Tyvek PMC Cover
Naked Control
0
60
120
180
240
300
360
420
480
Product starts at 25 deg C
Covered vs uncovered palett
With 50% water filled eggs
540
Time (Min)
Product Temperature (2/3 up the core)
Tem p er atu re °C
Tyvek(R) PMC Cover
25
20
15
10
5
0
-5
-10
-15
-20
Naked Control
0
60
120
180
240
300
360
420
480
540
Time (Min)
Test Conditions:
-Two pallets with simulated loads consisting of water filled plastic eggs were conditioned for 24 h @ 25degC
-Both pallets were then immediately moved to a controlled environmental chamber at -20 degrees C.
25
Air Cargo Covers offer protection against cold
Test Results - Tyvek® cover vs. No cover at (– 20) Deg C
Product starts at 25 deg C
Te m p e ra tu re ° C
Product Temperature (Top)
25
20
15
10
5
0
-5
-10
-15
-20
Tyvek(R) PMC Cover
Naked Control
0
60
120
180
240
300
360
420
480
540
Time (Min)
T em p e ra t u re °C
Product Temperature (Bottom)
25
20
15
10
5
0
-5
-10
-15
-20
Tyvek(R) PMC Cover
Naked Control
0
60
120
180
240
300
360
420
480
540
Time (Min)
26
Looking ahead: New improved product line to be launched
Pallet of mineral water
50% air/ 50% water 388 l
IR Picture of pallet taken after
4.5 h at 58 deg C (start at RT)
27
Solution for mixed shipments:
Testing Tyvek® covers with Brand owner
•
19
18
Example Temperature in
18kg Box with /without
Cover
Temp in ° C
17
16
15
without cover
with cover
14 ZürichDistribution
Centre
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Retailer
12
11
10
Time
March 2008
October 2008
28
Flower shelf life:
Flower trolley wrap: seasonal protection from cold or heat
1. DuPont to address the UK retailer
supplying Marks&Spencers
Scouting trials
(500k£ pain with Poinsettia)
Addressable market FH
7.5 bio Euro in NL or 10 mio trolleys/y
Marine catering shipments
How to preserve mixed
shipments for marine
consumption?
30
Sometime in 2011, the earth’s population reached 7
billion. By 2050, it will be 9 billion.
© National Geographic image
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Many taylor-made products, different products, sizes or
ULD dimensions
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Download from www.aircargocovers.dupont.com
Product safety information is available upon request
This information corresponds to our current knowledge on the subject. It is offered solely to provide possible suggestions
for your own experimentations.
It is not intended, however, to substitute for any testing you may need to conduct to determine for yourself the suitability of
our products for your particular purposes. This information may be subject to revision as new knowledge and experience
becomes available. Since we cannot anticipate all variations in actual end-use conditions, DuPont makes no warranties
and assumes no liability in connection with any use of this information. Nothing in this publication is to be considered as a
license to operate under or a recommendation to infringe any patent right
Sufficient pre cooling and correct temperature management from start of the cool chain
essential for optimal performance. DuPont is not liable for product damage during the use of the
cover
DuPont Tyvek® Air Cargo Covers are manufactured by DuPont utilizing technology by Blueye™
Contacts us: in your region for information about sourcing and availability
See webpage below
www.aircargocovers.dupont.com
[email protected]
00352 3666 5681
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