The New President Of Ingersoll Rand Climate Control - Thermo King

Thermo King’s CO2 Demo Truck goes on tour
Thermo King and
Yara have joined
forces to develop
a CO2 demo
truck. A mobile
CO2 filling station
also forms part
of the system.
7 TTC Q2 April 2006
In 2006, a CO2 demo truck
from Thermo King and Yara
is going on tour to visit
customers in Germany,
Austria and Switzerland.
Refrigerated transport
operators involved in
distribution will be able to
see first hand the practical
benefits of CO2 transport
refrigeration. All that is
required to take part in the
trial run is a power
connection - Thermo King
and Yara will provide the rest
of the equipment. Interested
operators should contact Rüdiger Jehle, Project
Leader Cryogenics & Transport Solutions, on the
following e-mail
address:rudiger_jehle@eu.thermoking.com
The demo truck is a Mercedes Atego 1223 with a
Kiesling multi-compartment refrigerated body. The
ST-CR refrigeration unit works with liquid carbon
dioxide, which is carried in a double-walled stainless
steel tank at minus 50 degrees and at an internal
pressure of 8.5 bar.
The liquid CO2 serves as a “consumable refrigerant”:
after the operating cycle, the CO2 is not re-pressurised
in the heat exchanger, but instead escapes into the
atmosphere as a gas. As the carbon dioxide used is
recycled from industrial processes and, on balance,
does not contribute to the greenhouse effect. No
nitrogen oxide pollution is produced and no CO2
enters the cargo area, so the driver does not need to
ventilate before entering. The tank is underfloor-
mounted and holds 330 litres, which amounts to
375 kg of liquid CO2.
The unit is extremely efficient - the temperature
pulldown is three to four times faster than in
conventional units - and is extremely quiet when
running, not to mention environmentally friendly.
With a noise level of less than 40 dB(A), the ST-CR is
especially suitable for use in sensitive areas where
noise-reduction regulations apply. As the CFC-based
refrigerants are dispensed with, the potential damage
to the ozone layer is zero and, unlike diesel-powered
units, CO2 refrigeration has the added benefit of
producing no soot particles.
Empirical figures show that during the normal
transportation of fresh produce (6ºC setpoint
temperature, around 15 door openings in a day),
depending on the outside temperature, between 5
and 15kg of CO2 are consumed within an operating
hour. If required, heating is provided with hot water
from the truck's cooling circuit.
The tank operation takes about 10 to 15 minutes to
complete. Instead of a fixed station, the demo truck
is supplied with CO2 from a mobile filling station. The
unit is integrated into a transport container, which
will be delivered by Yara. This long-standing partner
of Thermo King is one of Europe's leading suppliers
of CO2. Only a power connection is required for the
set-up; no special foundation is required and a Yara
tanker will fill the 3,000 litre tank.
DEMO TRUCK SPECIFICATIONS
Chassis: Mercedes Atego 1223
Body: Kiesling, ATP-tested
L x B x H: approx. 7,400 x 2,470 x 2,400 mm
Double doors at rear, side door (900 mm) at right,
flexible bulkhead (Kiesling “Eco Cool Swing”),
automatic cold curtain, Bär liftgate
Refrigeration unit: Thermo King ST-CR CO2
Microprocessor-based, control of two temperature
zones, engine coolant heat
CO2 tank: Undermount
Unladen weight: 186 kg
Weight when full: 560 kg (330 litres of liquid CO2)
Evaporator: Thermo King ST-CR 200. Slimline
evaporator for multi-compartment use, integrated
electric heater
Options: DAS temperature recorder, certified to
EN12830 & TLMV [German frozen food ordinance]
- Door contact switch (records each door-opening)
- R:COM, wireless temperature monitoring with 2.4
GHz radio LAN system
- FleetWatch monitoring software