NEXT GENERATION AUTOMOTIVE SEAT COVER TO IMPROVE THERMAL COMFORT USING THERMOELECTRIC EFFECT
Keywords:Ventilated Seat Cover, Peltier effect, Reduction in Human Perspiration
Thermal comfort is a condition of human mind that expresses physiological satisfaction with the thermal environment. To achieve this comfortable thermal environment almost all vehicles are equipped with heating, ventilation and air conditioning system. However the only heating, ventilation and air conditioning system is unable to circulate air all over the human body surface. The temperature of human body surface in contact with seat cover increases due to lack of air circulation between human body surface and seat surface. Next generation seat cover is developed to circulate the air between the gap of human body and seat cover. This seat cover blows air through the small holes of porous cushion material. This circulated air is cooled using thermoelectric effect. Circulating air absorbs moisture in the gap between the human body and seat surface. To validate the absorption of moisture experimentally, relative humidity of air between the gap before the fitment of seat cover and after the fitment of seat cover is measured. The experiment is carried out at three different time of the day, 9 am, 2 pm and 6 pm. 2-3% reduction in humidity is observed by using this next generation seat cover.
Atieva Inc (2015), “Vehicle seat ventilation system”, US 2015/0140915.
Bayrische Motoren Werke Aktiengesellschaft, (2011), “Actively ventilated vehicle seat”, US8038222.
Bell L (2008), “Cooling, Heating, Generating Power, and Recovering Waste Heat with Thermoelectric Systems. Science,Vol 321 (5895), 1457-1461.
Societa Consortile per Azioni C R F (2009), “Seat, in particular a vehicle seat, with means for deviating a ventilation flow based on coanda effect”, US 7527329.
Cengiz T and Babalık F (2007), “An on-the-road experiment into the thermal comfort of car seats”, Applied Ergonomics, Vol. 38(3), 337-347.
Choi H, Yun S and Whang K (2007), “Development of a temperature-controlled car-seat system utilizing thermoelectric device”, Applied Thermal Engineering, Vol. 27(17-18), 2841- 2849.
Abdulmunaem H Elarusi (2016), “Optimal Design of a Thermoelectric Cooling/Heating System for Car Seat Climate Control (CSCC)”, Master's Theses. Michigan University,720.
Ferreira M and Tribess P (2009), “User's perception of thermal comfort in ventilated automotive seats”, SAE technical paper, Vol. 36, 0043.
Gentherm Automotive Systems (China) Ltd., (2013). Ventilation System. WO 2015/100591.
Ghosh D, Wang M, Wolfe E, Chen K, Kaushik S and Han T (2012), “Energy Efficient HVAC System with Spot Cooling in an Automobile - Design and CFD Analysis”, SAE International Journal of Passenger Cars - Mechanical Systems, Vol.5(2), 885- 903. http://dx.doi.org/10.4271/2012-01-0641.
Hyundai Motor Company (2011), “Heating and cooling system for vehicle seat”, US 8061824.
IGB Automotive Ltd (2015), “Thin ventilated seat for a vehicle and items of furniture”, US 9061617.
Johnson Controls Technology Company (2004), “Air distribution system for ventilated seat”, US 6786541.
Johnson Controls Technology Company (2005), “Ventilated seat”, US 7229129.
Giering K (1996), “Specific heat capacities of human and animal tissues”, SPIE Vol. 2624, 188-189.
Kongsberg Automotive A B (2005), “Seat with temperature control and ventilation and safety system for a vehicle”, US 6892807
Lear Corporation (1999), “Ventilated vehicle seat assembly”, US 5927817.
Chein R and Huang G (2004), “Thermoelectric cooler application in electric cooling”, Appl Therm Eng, Vol. 24, 2207- 17.
Raibhan Bhosale and Nicolas Vogt (2016), “Next generation of ventilated front seats improving the cooling performance of front seats for Volvo cars”, Department of Product and Production Development Division of Product Development, Chalmers University of Technology, Gothenburg, Sweden.
Rutkowski P (2010), “Thermal Comfort Modeling of Cooled Automotive Seats”, SAE Technical Paper 2010-01-0552.
Thomas Lund Madsen (1994), “Case study on Thermal effects of ventilated car seats”, International Journal of Industrial Ergonomics, Vol. 13, 253-258.
Walgama C, Fackrell S, Karimi M, Fartaj A and Rankin G (2006), “Passenger Thermal Comfort in Vehicles - A Review”, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, Vol. 220 (5), 543-562. http://dx.doi.org/10.1243/09544070d00705