• Conjugate heat transfer in a Roots blower. Gap size calibration achieved deviation of 7.5% on flow and 4.3% power. Discharge air temperature was within 4 °C. High speed infrared thermography based surface 6 Oil-free blower is type Positive Displacement Machine used for low pressure ratio applications. Its volumetric efficiency dependent the leakage compressed gas through clearance gaps. In ab...

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...

The global development of fuel cell based propulsion has emphasized larger vehicles, with most manufacturers demonstrating a car, van or truck. However, the transportation market in many countries is dominated by smaller two and three wheeled vehicles. A fuel cell motorcycle could replace two stroke scooters that proliferate emissions, as well as, their electric counterparts that require long r...

ublicly owned treatment works (POTWs) are beginning the process of identifying air emissions from their wastewater treatment and collection facilities. Many of these facilities will be required by local and state regulatory agencies to reduce emissions to meet air quality or health risks standards. Emissions include odors and toxic, reactive, volatile and criteria pollutants. A wide range of re...

only The generalist predator Typhlodromalus limonicus (Acari: Phytoseiidae): a potential biological control agent of thrips and whiteflies Yvonne M. van Houten, Julietta Rothe & Karel J.F. Bolckmans ................ 237-240 Abstract: A strain of the phytoseiid predatory mite Typhlodromalus limonicus Garman & McGregor, collected from tomatoes, was tested in a laboratory study as a biological con...

BACKGROUND Mild perioperative hypothermia increases the risk of several severe complications. Perioperative patient warming to preserve normothermia has thus become routine, with forced-air warming being used most often. In previous studies, various resistive warming systems have shown mixed results in comparison with forced-air. Recently, a polymer-based resistive patient warming system has be...

A 57-year-old right-handed glass-blower presented with a penetrating injury to the hypothenar eminence of his left hand sustained as he was tapping the bulb to dislodge air bubbles while making a mercury thermometer. The hypothenar eminence was swollen with a small puncture wound 3 cm from the distal wrist crease. There was no tendon or neurovascular damage. A radiograph showed multiple subcuta...

A brushless DC motor with integrated drive circuit for air management system is presented. Using magnetic equivalent circuit model a basic design of the motor is determined, and specific configurations are inspected thanks to finite element analysis. In order to reduce an unbalanced magnetic force in an axial direction, induced forces between a stator core and a permanent magnet are calculated ...

Using identical mechanical hardware used in an automobile, a stationary test bench has been developed for an automotive air conditioning system (AACS). However, a number of additional sensors have been used in the system for an accurate assessment of its performance. The steady state performance of the system has been investigated for three independent variables, namely the refrigerant charge l...