An Experimental Investigation of a Hybrid Home Air Conditioner Using R134a Refrigerant

Mohd. Mansoor Ahemad, Trinadh Pydipaty, Faiz Ahemad Khan Pathan, Naresh Gottam, Abhinay Joshi Konduru, Ramesh Babu Nalabolu

Abstract: Now a day?s Air conditioning has become the basic necessity for human comfort from the last decade due to global warming. Innovation in air conditioning technologies continues, with much recent emphasis placed on energy and efficiency. Reducing the power consumption is the main criteria because the cost of electricity is increasing day by day. In most of the air conditioners refrigerants such as R11, R12, R22 etc. are used which contributes depletion of the ozone layer. This thesis proposes that by using low temperature eco friendly refrigerants such as R134a can reduces the cooling time of the room. Experimental results also show the comparison of COP at various loads and different condenser fan speed regulations. In general for a 1 tr room dimensions the load in the equipment is not more than 10000KJ/hr but in our experimental analysis we tested our 1 tr equipment with full load conditions i.e., 12960KJ/hr. Hence proposed system could be a new option for performance improvement of a room air conditioner by enhancing heat transfer of the evaporator and useful for domestic establishments.

Keywords: Cop ? Refrigerant ? Cooling Capacity ? Ton of Refrigeration tr ? Dry bulb Temperature ? R134a ? R22 ? Carnot efficiency - Latent heat - Sensible Heat - Relative humidity - Specific humidity - Mass flow rate - volumetric efficiency