High Flux Rate Vapour Absorption System

This project had aimed to provide a sustainable cooling solution for the rapidly increasing air-conditioning demand. Air-conditioning had become an undeniable necessity in the global warming crisis, but at same time a major contributor to this notorious problem.

A high flux rate vapor absorption system provides to involve the sustainability factor of traditional vapor absorption chillers, along with omitting the drawback of long "apparent cooling delay".

As such, we had made every effort via this innovation to improve quality of life without degradation of earth.

Our solution is a vapor absorption cooling system wherein we had made used of ethanol refrigerant and (triethylene glycol + carbonyl iron powder) absorbent.

Here the property of magnetorheological fluids of undergoing rapid change in thermal conductivity under an applied magnetic field had been utilized.

Magnetic field is applied alternately to the absorber bed, which with change in thermal conductivity, undergoes simultaneous change in thermal diffusivity, allowing for the instantaneous evaporation of the refrigerant in a connected evaporator. Pneumatic non-return valves were incorporated in the prototype to channelize flow, as well as a flow control valve was intermediate between the evaporator and the condenser units.

Our solution is an answer to the global need for a sustainable cooling method, and we hope to impact maximum population in the need of air-conditioning by reducing their carbon foot-print.

Our entire team is resident of India, which is dissected by the tropic of cancer.

Every summer season, our country faces huge decline in human productivity from the extremes of heat, which is, unfortunately, also the reason behind the loss of human lives.

In May 2020, at a railway station in Bihar, a toddler was caught on camera crying besides the corpse of its mother, who succumbed to the rage of the sun and the air.

It is therefore our aim to create a cooling method which is easily installable and carries very low and sustainable running costs.

Our application to SOLVE was inspired by the idea of gaining essential industrial and engineering training via MIT which will help us deliver our solution to the widest consumer base and develop more such essential tech.

The vital innovation in our solution is the unconventional use of an existing technology, ie. Magnetorheological fluid, applying an unused property, which is the rapidly changing thermal conductivity of the micro-fluid under an applied magnetic field.

We understand that further development of this technology will motivate many promising hearts towards a whole new concept and thus expect a crusade in the HVACR industry.

Our goal for the next year is the discovery of newer and safer refrigerant- MR fluid absorbent pairs and find lasting solutions to the problem of micro-particle stratification in the system unit.

For the next five we are confident to discover our solution in every household as the latest air-conditioning system.

We had been measuring our solution for its effectiveness towards providing maximum temperature decrease with the minimum energy input, in the least amount of time.

In our latest test, we obtained a fall of 5 degree centigrade (from 36 degree C to 31 degree C) with 60 mA current input for a solenoid powered by just a microcontroller.

We had acknowledged the year on year increase in the demand of air-conditioning systems, mostly parallel with economic growth, as well as the increasing energy load of the conventional cooling systems.

Therefore our solution provides to meet this demand of air-conditioning without straining the energy situation and carbon footprint.

Wide regions in India face multi-hour power-cuts, seasonally parallel with the demand for air-conditioning, hence our solution serves as a mean to mitigate the "human discomfort" crisis.

Our solution incorporates the thermal conductivity related properties of Magnetorheological fluids.

This means rapid change in thermal conductivity, allowing for changing thermal diffusivity and thus different vapor pressure for the refrigerant, created by applying a very minor power input sufficient enough to create magnetic field in the range of 40-60 gauss.

We had made every effort to eliminate barrier of work contribution, and ideas had been propagated, discussed and absorbed through every member.