This paper presents results of a parametric study performed on an automotive air-conditioning (AAC) system of a passenger car. The goals are to assess the effects of varying the volumetric flow rate of supply air, number of occupants, vehicle speed, and the fractional ventilation air intake (XOA), on the dry-bulb temperature and specific humidity of the air inside the passenger’s cabin, and on ...

The helicopter vibrations generated by the main rotor/gearbox assembly are principal cause of damage to cockpit instruments and discomfort crew in terms cabin noise. path vibration transmission fuselage is through gearbox rigid support struts. With aim reducing these vibrations, this paper presents design a low-weight high-performance active damper for control developed Elettronica Aster S.p.A....

This paper presents a cost-effective method to increase the COP and utility of a domestic refrigerator using R-134a refrigerant. A cabin was installed on the top of a domestic refrigerator with condenser coils of refrigerator serving as heating coils inside the cabin. Known quantity of water was heated by the condenser coils (due to convection currents) thereby increasing the overall COP of the...

Before the coronavirus pandemic, there were 4.5 billion passenger movements by aircraft annually; this is expected to recover after pandemic. Despite large numbers of flights per year, are few reports whole-body vibration in fixed-wing aircraft. This paper a review literature intended collate reported data related exposure vibration. Following filtering process select relevant articles, search ...

Several dramatic accidents have emphasized certain deficiencies in cockpit-cabin coordination and communication. There are historical, organizational, environmental, psychosocial, and regulatory factors that have led to misunderstandings, problematic attitudes, and suboptimal interactions between the cockpit and cabin crews. Our research indicates the basic problem is that these two crews repre...

In this paper, a study of the concurrent engineering design for the environmental friendly low cost aircraft cabin simulator is presented. The study describes the used of concurrent design technique in the design activity. The simulator is a testbed that was designed and built for research on aircraft passenger comfort improvement of long haul air travel. The simulator consists of an scale down...

Introduction: The key to significant lunar science and exploration return lies in supplying the crews on the surface with a robust EVA capability. This capability should include high mobility pressure garments; tactile, dexterous gloves; reduced overhead in preparing for and recovering from EVAs; management of regolith contamination; and control of suit leakage to prevent planetary contaminatio...

Potential causalities due to airborne disease transmission and risk of chem-bio terrorism in commercial airliner cabins can be reduced by fast responses. Fast responses are only possible by using sensors at appropriate locations in the cabins. Cost, size and weight factors restrict the number of sensors that could be installed inside a cabin. Since release locations and seating patterns of pass...

Space radiation is known to be key hazard of manned space mission. To estimate accurately radiation health risk detailed study of dose distribution inside human body by means of human phantom is conducted. In the space experiment MATROSHKA-R, the tissue-equivalent spherical phantom (32 kg mass, 35 cm diameter and 10 cm central spherical cave) made in Russia has been used on board the ISS for mo...