Semiconductor-based devices in various fields such as night vision, space exploration,
medical inspection, telecommunication, among others could benefit from operating at …

Thermal management is critical in keeping electronic devices operating below their reliable
temperature limits. One promising approach is to use vibration-free micromachined Joule …

Abstract Mixed refrigerant Joule Thomson refrigerators are widely used in various kinds of
cryogenic systems these days. Although heat transfer coefficient estimation for a multi-phase …

In this paper, we present the design, fabrication, and testing of a monolithic polymer Joule-
Thomson microcryogenic cooler (MCC) cold stage. The MCC cold stages were fabricated …

The vapor-compression cycle for refrigeration near ambient temperature achieves high
efficiency because the isenthalpic expansion of the condensed liquid is a rather efficient …

Lightweight and compact microcoolers are needed for advanced, hand-held infrared
systems. A temperature of 150 K is adequate for high sensitivity with some of the latest IR …

Thermal management is critical for keeping electronic devices operating below their reliable
temperature limits. One promising approach is to use vibration-free micromachined Joule …

Abstract Cascade Joule-Thomson Microcoolers have been proposed in literature in which
different compressors with low values of pressure ratio of order four using different working …

This thesis presents the design, fabrication, and characterization of several coldstages
intended to investigate the feasibility of a low pressure ratio three stage cascaded Joule …

Micro-scaling cryogenic refrigerators, in particular the Joule-Thomson (JT) variety require
very good information about heat transfer characteristics of the refrigerants flowing in the …