The paper presents design and experimental investigation of an electronic system for control the temperature exhaust gases turbocharging air pressure in turbochargers diesel automobile engines. existing problems are faults fuel engine. indicators changes values exact areas turbocharger. presented device is a controller that monitors precisely pressure, which so vital long operation automobile. ...

Air conditioning refrigerant R134a has value of global warming potential (GWP) 1300, which is much higher than MAC Directive (GWP below 150) passed in July 2006. This prompted a search for alternative refrigerant with GWP value less than 150. R1234yf is a new refrigerant which has lower GWP value of 4. Effect of blower speed has been compared and flammability issue of R1234yf has been addre...

This study monitored the carbon dioxide (CO2) concentrations and temperatures of three 43-seat tour buses with high-passenger capacities in a course of a three-day, two-night school excursion. Results showed that both driver zones and passenger zones of the tour buses achieved maximum CO2 concentrations of more than 3000 ppm, and maximum daily average concentrations of 2510.6 and 2646.9 ppm, re...

The air quality in a car’s cabin can be five times worse than that of residential and non-residential buildings, resulting variety health issues, such as headache, sore throat, nausea, which are all symptoms in-vehicle pollution. monitoring carbon dioxide, is one the principal pollutants car cabins, required before regulating it. current research focused on recording dioxide levels for differen...

IN T R O D U C T IO N In recent years there has been a growing concern about the rapidly deteriorating environment in the urban areas of this country in terms of air, water, and noise pollution. Automobile transportation has been found to be a significant factor in the deterioration of the urban environment, particularly in regard to air pollution. In general, con­ sidering the total tonnage of...

Thermal comfort is a very vague and a very individual term, which depends on physiological and psychological variables. Thermal comfort in transient environments, like an automotive cabin, is far from understood and general accepted theories do not yet exist. This paper investigates the concept of using a black-box approach for directly associating thermal comfort to field measurements. Artific...

Air bags have been shown to decrease mortality from automobile accidents. Herein is a unique case of bilateral pneumothorax following deployment and rupture of an air bag with no other associated chest trauma. One may posit that rupture of the air bag allowed high-pressure gases to be expelled into the patient's lungs resulting in explosive barotrauma.