CRYOGENIC AIR CONDITIONING OF MOTOR VEHICLES

Motor vehicles, air pollution, and public health.

Over the past decade, an increasing body of scientific evidence has accrued associating outdoor air pollution with certain types of cancer. Specifically, two major large prospective epidemiological studies first published in the early to mid-1990s and, in the case of one study, recently confirmed with a larger data base, found an association between exposure to particulate air pollution and lun...

Air Conditioning Check and Air Conditioning Service

Stochastic Model Predictive Control of Air Conditioning System for Electric Vehicles: Sensitivity Study, Comparison and Improvement

A stochastic model predictive controller (SMPC) of air conditioning (AC) system is proposed to improve the energy efficiency of electric vehicles (EV). A Markov-chain based velocity predictor is adopted to provide a sense of the future disturbances over the SMPC control horizon. The sensitivity of electrified AC plant to solar radiation, ambient temperature and relative air flow speed is quanti...

Managing Trace Contaminants in Cryogenic Air Separation

Atmospheric air contains many trace components which are process contaminants or equipment fouling agents in a cryogenic air separation process unit (ASU). Based on the potential problems that they may cause, the trace contaminants are categorized as corrosive, plugging or reactive species. This paper discusses a three step process to manage the trace contaminants as they move through the ASU: ...

Fully Fresh Air Air-conditioning System Equipped with Double Heat Pipe Based Heat Recovery Technology

The using of double heat pipe based heat exchanger (HPHX) in a conventional fully fresh air air-conditioning (AC) system was examined in the present study. The fabricated HPHXs were tested under the actual conditions and the measured data were used to study the performance of the existing AC system (System A) and AC system equipped with the double HPHX (System B) for a yearly operation through ...