Remember, refrigerant in the air conditioning system can reach pressures of over 500 PSI – if one of those lines bursts while you’re working on the system, it can cause serious injury. The system used a compressor, condenser, receiver drier and evaporator (fitted inside the boot/trunk) to operate the system. The overall HVAC system shall be designed to minimize noise in the passenger and crew areas of the car. The noise level from the HVAC system shall not exceed the values in the following table. Typically, water or air •The compressor is the workhorse of the system. Condenser – It is the device looks like a small radiator and is used after the compressor as it provides condensing i.e. Refrigerant There are two types of refrigerants used in automotive applications. Automotive Heating and Air Conditioning, 8/e provides a complete, state-of-the-art source on automotive heating, ventilation, and air conditioning systems, as well as the practical skills that students must master to be successful in the industry. How to drive the compressor. •It draws heat-laden gas from the evaporator at low temp/low pressure and compresses this gas, raising its temp/ Always wear the proper protective eyewear and clothing before working on any refrigeration system. Automotive technicians can be certified in one or more of the eight areas below. Servicing Refrigerant Systems 1. DOE Vehicle Technologies Office . Vehicle Technologies Office . The material is divided into three major sections: general concepts, Chapters 1–10; air-conditioning systems, Chapters 11–16; and HVAC&R equipment, Chapters 17–20. • Brakes • Electrical/electrical systems • Engine performance • Suspension and steering • Automatic transmission and transaxle • Engine repair • Heating and air conditioning Automotive Thermoelectric Generators and HVAC . The compressor of the car air conditioning system is driven by the crankshaft of the engine through the belt drive. R-12 R-134a Refrigerants Problems with EV’s and A/C There are a few things to consider when trying to retain your A/C system. system. Let’s take a look at some of the symbols used in electrical schematics. The condenser is the component in which the heat absorbed in theevaporator is transferred to the atmosphere through thecondenser-cooling medium. 2013 Annual Merit Review and Peer Evaluation Meeting. There are several significant changes in this revised edition. Chapter 4 has new values for climatic design information. loads that make up the system. 1 Automotive HVAC NVH quality: from design to vehicle integration Said NAJI 1 Sébastien GOUDE 1 Darius KURNIAWAN 2 1VALEO Thermal Systems, La Verrière, FRANCE 2VALEO Thermal Systems, Auburn Hills, USA Abstract Automotive Air Conditioning (A/C) system (Cold and hot loop + HVAC: Heating, Ventilation and Air Conditioning) is Advanced Combustion Engine R&D Program . Particular care shall be required at the return air grilles, cab supply vents and galley ceiling air diffusers. The only system control was a blower switch. … Solid State Energy Conversion . 2 Automotive Air-conditioning and Climate Control Systems In 1939 Packard marketed the first mechanical automotive A/C system which worked on a closed cycle. 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