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New cars produced in the early 1990s contained the new refrigerant in their air conditioning systems. Owners of older cars with R-12 systems would either have to invest in an R-12 to R-134a conversion system, buy a new car, or find a qualified technician to recharge their older R-12 system. R-134a has been used in cars for almost 30 years.
Here are 12 cars they believe are worth your hard-earned cash in 2025 and why they deserve a spot in your garage. ... Hughes Fire rages near LA; 50K under evacuation orders, warnings: Live updates.
According to Statista, the U.S. auto market went from offering 166 vehicle models in 1997 to 285 in 2023 -- and that number is expected to be around 260 this year. Within those umbrella groups are...
If a variable speed drive compressor operates continuously at full speed, the switching losses of the frequency converter result in a lower energy efficiency than an otherwise identically sized fixed speed compressor. Where demand remains constant within 5–15% of the total free air delivery flow rate, dual-control compressors configured in a ...
Unlike constant air volume (CAV) systems, which supply a constant airflow at a variable temperature, VAV systems vary the airflow at a constant or varying temperature. [ 1 ] [ 2 ] The advantages of VAV systems over constant-volume systems include more precise temperature control, reduced compressor wear, lower energy consumption by system fans ...
A Car and Driver favorite, the 2023 Honda Accord is spacious and sleek, and it continues its tradition of being ultra reliable. Nissan Altima Per Rerev, in 2013, a new Nissan Altima went for $22,280.
Small variable-frequency drive Chassis of above VFD (cover removed). A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the ...
Many of us have a need for speed when we hop into a car, especially if we have money to throw at sports cars. If you want to (safely) be the fastest person on the road, you probably want a sports ...