The air bearing heat exchanger (ABHE) is shown in Figure 1 (see Koplow (2010) for a thorough introduction).
The ABHE was invented to address the need for compact, high-performance air cooled heat sinks in electronics cooling applications, where the volume occupied by a heat sink is often constrained.
The ABHE represents a unique type of active enhancement because the enhancement mechanism (associated with the rotation of the heat-sink-impeller) is also necessary for establishing relative motion between the heat sink fins and ambient air and moving the air through the system.
We performed several experiments to measure the performance of the ABHE. First, we used a custom-built apparatus to measure the fan curves of the device at various speeds.
In considering the entire ABHE, one must also consider the thermal resistance of the air bearing gap, which can be calculated using Fourier's Law as [R.sub.gap]=[b.sub.gap]/k*[A.sub.base], where [b.sub.gap] is the air gap thickness, k is the thermal conductivity of air, and [A.sub.base] is the area of the impeller base.
To better understand the fluid dynamics in the heat-sink-impeller of the ABHE, we developed a computational fluid dynamics (CFD) model using ANSYS CFX.
Proprietary schools would get accredited by ABHES
, and have their students certified by a certification board that gave preference to ABHES
graduates over all others.
Carlson, RMA Offices Manager/Medical Assistant at Friend Health Care in Colorado Springs, Colorado Accrediting Bureau of Health Education Schools (ABHES
) Commissioner holding the seat of Practitioner in Specialty Area: Office Manager/Medical Assistant.
Under regulations of both the Arizona Medical Board (12) and the Board of Osteopathic Examiners, (13) medical assistants must meet one of the following requirements: (1) complete an education program accredited by ABHES
, CAAHEP, or another accrediting agency recognized by the U.S.
She is a medical program consultant (ABHES
and ACICS Evaluator), and a medical textbook reviewer.
In considering the entire ABHE
, one must also consider the thermal resistance of the air bearing gap, which can be calculated using Fourier's Law as [R.sub.gap] = [b.sub.gap]/k x [A.sub.base], where [b.sub.gap] is the air gap thickness, k is the thermal conductivity of air, and Abase is the area of the impeller base.