1. Solar Thermal Refrigeration1
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2. Important The following short presentation is a basic
understanding of how the Solar Thermal process
works.
For a more detailed technical explanation of the technology, please
request an NDA on the following
Solar Collector 2

3. Understanding the Prerequisites
The Solar Thermal
Process
Solar Collector 3
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4. Temperature increase does not always equal pressure increase.
Prerequisite - The Ideal Gas Law
In the refrigeration process, the refrigerant is in gaseous state as it leaves the evaporator through to the condenser.
Therefore within the process of solar thermal refrigeration, the Ideal Gas Law applies.
Temperature increase does not always equal pressure increase. 4
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5. Prerequisite - Compression & Absorption
In1926, Albert Einstein and one of his then top students Leo Szilard, invented the first fully functional refrigerator using the absorption process.
Solar thermal refrigeration
is in essence a more modern
day version of the
Einstein–Szilard refrigeration
process. The main difference
being that we are partnering the modern day compression cycle with
The absorption process. In the absorption cycle, heating the refrigerant
was generally achieved by burning a fuel (oil or gas), in contrast we
use the free energy provided by the sun to heat the refrigerant, in
essence taking over the workload of the compressor and therefore
substantially reducing the energy consumed. 5
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6. Prerequisite – Partnering
The patented process of solar thermal refrigeration is designed to work with all types of modern day variable flow refrigeration technology, such as DC Invertor, Staged Compression and Digital Control systems.
Invertor and Digital Scroll
The general engineering make up the compressors design is to produce fluctuating loads, subject to the whole systems requirement.
Therefore when the load requirement is low, the compressor will logically run at low speed. Some modern technologies can now run as low as 10% of their available capacity.
Fixed speed staged
As with fluctuating load systems, in the case of multistage compression, additional compressors enter the phased platform to satisfy load demand, and therefore numbers reduce as the load requirement reduces. 6
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7. System in normal run process
Staged Compression
System in normal run process
Expansion
Valve
Condenser
Assuming full load is required, all compressors will run.
Compressor 7
Evaporator

8. System with solar thermal compression
Staged Compression
System with solar thermal compression
Expansion
Valve
Condenser
The panel absorbs the UV radiance from the sun, creating free heat. Subsequently heating the refrigerant gas as it passes through the heat exchanger…
Compressor 8
Evaporator

9. At this point, we now have a distinct change in thermal energy.
Raising the internal energy within the solar collector
A higher value of kinetic energy within the gas molecules
Intermolecular forces weaken, and the molecules space out
The molecules now move with a higher velocity
All resulting in an increased volume flow… 9

10. System with Solar Collection
Staged Compression
Removing the heat –
We now have a hugely increased DeltaT. This combined with the increased kinetic energy of the gas molecules, effectively increases the surface area of the condenser.
Due to the increase in molecular velocity, most, if not all of the pressure produced from the additional heat is released in mass volume flow and subsequent volume conversion within the condenser and expansion valve.
Solar Collector
NRV
Expansion
Valve
Finally, this results in a reduced energy demand as the compressors begin to shut down as the sun takes over the load requirement
Condenser
Compressor 10
Evaporator
System with Solar Collection

11. Very important
Those who may be concerned how the condenser addresses any additional heat generated by Solar Thermal:
First and foremost, the systems condenser is designed to manage the compressors running at full load. The reality is when the sun is in the sky (the time when most systems run at full load), the system will ensure that all compressors virtually never run at full load.
We actually want the heat from the solar panel, utilising the heat (temperature not pressure) we increase the gas molecules kinetic energy, hence increasing the mass volume flow, and additionally creating an improved Delta T therefore enhancing the efficiency of the heat exchanger (condenser).
All Refrigeration and A/C systems are manufactured to a very specific design point, e.g. for A/C systems ISO This point sets the capacities for the compressor, condenser and all other parts. The facts covered in the second paragraph above allows the system to easily cope with any additional heat, as is shown here and further clarified in third party testing data (T after condenser):
10kW system without solar thermal
T-discharge
T-after condenser
10kW system with solar thermal
T-after panel
T-discharge
T-after condenser 11

12. Official Testing Data
The Solar Thermal
Process 12
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13. The illustration below demonstrates the energy usage on a solar thermal assisted DC inverter system in comparison to an identical A+ rated DC inverter system. A clear cut case of ‘the hotter it gets’ the less the system works’ – and as importantly the more the comparison A+ system works.
Solar thermal system
Non solar Inverter
Data Measurement
kWh 13

14. Temperatures and Pressures
Data Measurement
58.4°C
28.4°C
24.8°C
22.8°C
16.35bar
16.31bar
10.3°C
9.7bar
137°F
83°F
77°F
73°F
237.1psi
236.5psi
50.5°F
141psi . 14

15. International, actively defended patent pending technology
Intellectual Property Protection – all our products using Solar Thermal and/or other third party heat exchangers between the compressor and the condenser are internationally patent pending. We will, without hesitation commence litigation with any company or individual attempting any type of IP infringement of our technologies. 15