a) Using examples distinguish between intecmittent and condunder toefficient in an automobile radiator b) A test is done to determine the overall heat transter cocficient in an autbmobile-tadiatos both flulds untribed. The that is a compact cross-flow water-to-air-heat exchamger with both flulds ummised. The plate finned matrix. Hot water enters the tubes at 90C at a rate of 0.6kg/5 sand leaves at. 65C Air flows across the radiator through the inter-fin spaces and is heated from 20C to 40C. Determine the averail heat transfer coefficient of this radiator