History teaches: it is easier to improve a process using a known technology instead to invent a total new approach. So adopting a mix solution approach is often more efficient (in economic and feasibility terms) than a total reinvention.
In recent years, the researches in cooling liquid have reached significant results in the improvement of the absorbent/adsorption cooling cycle under the push of the ecological problem.
Basic adsorption heat pump cycle consists of four main parts: an adsorber, which is a container filled with:

  • - an adsorption (such as zeolite, active carbon, silica gel, etc.);
  • - a condenser; an evaporator; and an expansion valve;
  • - an adsorption heat pump cycle consists of four steps which are isosteric heating, isobaric desorption , isosteric cooling and isobaric adsorption

The comparison of the adsorption heat pump with the conventional heat pumps which are mechanical and absorption heat pumps contribute understanding of the present position and future of adsorption heat pumps. The Table below illustrates the comparison of COP values of adsorption heat pump system with absorption and mechanical heat pump systems. 


As is seen, the COP value of the vapor compression heat pumps is higher than thermal driven pumps; our aim is to acquire the waste heat, cause of discomfort in the cockpit, and converts it in a thermal source for the new A/C system. In this case, it’s not possible to proceed with a comparison between the two solutions.
With E-llum A/C System we want to reach a high performance of Air Conditioning system using an new generation of ABSORBENT/ADSORPTION COOLING CYCLE.
Various unused heat source are available in the car:

  • the atmospherically heat:
  • the motor,
  • the braking plates,
  • the car body the environment itself.

Right now the heat, that they produce, need to be dissipated but potentially this heat source could be used.



In our system these source will provide most of the energy required to power the cooling system while the E-llum Technology will be used for the fine control and to develop a new class of adsorption physical/chemical reactor, that will be able to better utilize these free energy. We aspire to use the minimum amount of battery energy to get a cooling cycle that is equivalent or better than what is out in the market, in which the battery provide just what is missing and not an once more.