In the newly designed SL-MAC system, at the initial stage of cooling, alternative refrigerants first cool the secondary fluid, followed by the secondary fluid cooling the temperature inside the vehicle cabin
Two of the top giants in the automobile industry, Tata Motors and Mahle which feature among the top 20 largest suppliers have signed a joint agreement to develop a prototype secondary loop air conditioning system under the aegis of the nation’s environment.
Mahle and Tata Motors are not alone in this project as they are supported by the Institute for Governance and Sustainable Development (IGSD) while the funding comes from the climate and clean air coalition for developing the SL-MAC system. The climate and clean air coalition to remove short-lived climate pollutants is a global initiative to foster actions towards making a difference in the area of climate change, public health and energy security.
The process of SL-MAC system involves the use and trial of eco-friendly, low global warming potential refrigerants HFC-152a (ASHRAE A2) and HF01234yf (ASHRAE A2L).
The newly designed SL-MAC system and the prototype were inspected by a team of experts which included the representative of California Air Resources Board, the Mobile Air Conditioning Society Worldwide (MACS), the National Renewable Energy Lab (NREL), Mahle, Tata Motors, and IGSD. The newly designed prototype was inspected Mahle at the Behr facility in Lockport, New York, USA on April 7, 2017.
Tata utility vehicles will be provided with SL-MAC system as a prototype. In the newly designed SL-MAC system, at the initial stage of cooling, alternative refrigerants first cool the secondary fluid, followed by the secondary fluid cooling the temperature inside the vehicle cabin.
The SL-MAC which is going under test for Low GWP refrigerants is believed to increase vehicle energy efficiency. Along with the energy efficiency advantage, the SL-MAC system makes the use of such refrigerants possible that does not enter the vehicle unit and only the coolant/cooled fluid is circulated.
According to the latest information, the SL-MAC project is on schedule while the cost and other environmental advantages will unfold in the later stages.
The newly designed SL-MAC system prototype will be tested in India on the Indian roads in the third quarter of 2017. The SL-MAC system may turn out be a real asset in the long hot and humid weather conditions and with a substantial degree of stop/start driving in such weathers. Autoportal