R&D Capability
R&D Competencies
HVAC & REFRIGERATION SOLUTIONS
TOEFLEX ENGINEERING
Our R&D team, boasting over 20 years of industrial experience in refrigeration appliances and PhD-level expertise in refrigeration technologies, caters to various engineering requirements in appliance categories such as:
Household refrigerators
Commercial refrigerators
Medical refrigerators
Custom refrigeration devices
Heat Pump Dryer
Our team of engineers possesses profound, application-specific know-how.
They assist you in the design of your products, offering costoptimized solutions.
The exceptional expertise from our principals is leveraged to benefit our clients by...
Design and optimisaton of cooling components for different applications.
Design and optimisaton of cooling components for different applications.
Design and optimisaton of cooling components for different applications.
CFD Software
System Simulation Software
CAD and CFD tools ensure smooth data exchange with customers
We make design and optimisation of all cooling components：
Condensers：
Static skin and ventilated condensers
Evaporators:
FOT, WOT, POT, Roll bond, Microchannel evaporators
Fans:
Fans for evaporator and condenser assembly
Compressors：
Definition based oncalorimetric data
Others：
Design of entire cooling system
Condenser Design & Optimisation
Trade off-curves are created to define optimum condenser dimensions by means of cost and performance
Example-2: Design of a fan condenser, fan assembly and their layout in the machine compartment of a refrigerator.
Machine Compartment Design
Example-2: Design of a fan condenser, fan assembly and their layout in the machine compartment of a refrigerator.
Evaporator Design & Optimisation
Example – 3 : Performance of 7 evaporator models were evaluated (Roll bond, WoT, Pot , Foamed, Topless, Bracket and Zig-Zag) on a refrigerator.
Roll bond
WoT
PoT
Foamed
Fan Speed 960rpm
Topless
Bracket
Zig-Zag
Example-3 : In the graph, it is possible select the prominent evap, based on cost and performance;
At the bottom, temperature gradients show potential condensation risk on air ducts.
Example-4 : Optimisation to define a WOT evaporator replacing a Roll Bond evaporator in the fridge cavity.
Fan Design & Optimisation
Example-5 : Fan characteristics definition with CFD simulations.
Complete Cooling System Simulation (1D)
Example-6 : Refrigeration system design by 1D simulations.
Lumped parameter methods are used.
Simulation Model :
It consists of refrigeration cycle, cabinet, ambient conditions and electronic control.
Refrigeration cycle:
Compressor, Hot-gas Tube, Condenser, Capillary tube, Fan, Evaporator, Suction Line Heat Exchanger, Gas Charge
Cabinet & Ambient Conditions:
PU thicknesses, outer dimensions, air ducts, ambient temperature
Electronic Control:
Thermostat, Fan motor, Damper control
Example-6 : Refrigeration system design by 1D simulations.
When the cooling system simulation model is created, impact of below parameters can be analysed.
This reduces testing time and expenses drammatically.
Example-7 : Condenser type selection by using system simulation.
Example-8 : Trade-off curves to show Compressors vs Energy Class at different Net Volumes.
Example-9 : Impact of ambient temperature on cooling system.