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After closing Unit 1 of the Ignalina NPP, a decision was made to transfer the spent fuel to Unit 2 for further use. For that purpose, a container which can transport up to six RBMK-1500 type assemblies was designed. From the point of radiation safety, it is important that the dose rate on any surface of the container does not exceed 2000 μv/h [1]. The initial fuel enrichment, burn up depth and cooling time most strongly affect the spent fuel isotopic composition and thus directly influence the radiation characteristics of the container. In this article, the evaluation of dose rate applying the SCALE code system (USA) is presented and performed and a comparison with the MCNP code and experimental results is made. [ABSTRACT FROM AUTHOR]

• Demonstration of how radiative cooling can reduce water consumption in thermal power plants. • Supplemental radiative cooling system reduces water consumption by 30–90%, without efficiency penalty. • Standalone radiative cooling system eliminates water consumption with 0–2.2% efficiency penalty. • Radiative cooling potential and water saving maps of the contiguous US. Evaporative wet cooling and dry cooling are gradually replacing water-intensive, thermally polluting once-through wet cooling in thermal power plants. Widespread adoption of evaporative wet cooling increases water losses to the atmosphere and still requires uninterrupted makeup water. Dry cooling substantially increases auxiliary power consumption and causes plant efficiency penalty. Therefore, efficient water-saving cooling technologies are of great importance. Here, we explore the water saving potential of day-night radiative sky cooling with and without evaporative wet cooling in thermal power plants. With a radiative cooling system size of 0.0055 km2/MW th normalized by the condenser thermal load at design, we show that a hybrid evaporative-radiative cooling system yields annual water savings of 30–60% in the dry and hot southwestern United States and 50–90% in other parts of the country without causing efficiency penalty. Furthermore, 100% water saving is achievable if the radiative cooling system functions as a stand-alone cooling system, with a much lower efficiency penalty and auxiliary power consumption than that of stand-alone dry cooling systems. [ABSTRACT FROM AUTHOR]

Erosion of the leading hanging-wall cutoffs of thrust sheets commonly obscures the magnitude of thrusting. The Jones Valley thrust fault in the southern Appalachian thrust belt in Alabama, USA, is exposed along a northwest-directed, large-scale frontal ramp, and the leading part of the thrust sheet has been eroded. Previously published and newly collected vitrinite refl ectance data from Pennsylvanian coal beds document a distinct, northeast-trending, elongate, ovalshaped thermal anomaly northwest of the trace of the Jones Valley fault. The northwest edge of the thermal anomaly is ∼18 km northwest of the fault trace, suggesting the original extent of the eroded thrust sheet. The anomaly ends both northeastward and southwestward along strike at lateral ramps. The southeast edge of the anomaly corresponds to the location of a footwall frontal ramp. A three-dimensional heat conduction model for simultaneous horizontal (twodimensional) and vertical heat fl ow in a rectangular thrust sheet is designed to test whether the documented thermal anomaly (%Ro = 1.0-1.6) may refl ect the former extent of thrust-sheet cover. The model uses a 3-km-thick thrust sheet with horizontal dimensions of 10 × 30 km, as well as a threedimensional analytical solution to the heat conduction equation, whereby the thrust sheet cools both laterally and vertically. The model reproduces the magnitude and oval shape of the vitrinite refl ectance anomaly at 100-500 k.y. after thrust emplacement. The geothermal gradient reaches a steady state at ∼2 m.y., and is never fully reestablished even for long times because of lateral cooling in the hanging wall. Thickness and extent of the thrust sheet from the thermal model are consistent with balanced and restored cross sections of the Jones Valley thrust sheet based on geologic data; a thrust sheet ∼3 km thick was emplaced ∼18 km onto the foreland over the site of the thermal anomaly. The threedimensional thermal evolution of both the hanging wall and the footwall is distinct from that predicted from one-dimensional models; a three-dimensional model predicts less heating of the footwall because of horizontal heat loss across bounding ramps. [ABSTRACT FROM AUTHOR]

This article looks at the state of air conditioning engineering at hot summer in the United States. No longer the mammoth machines of yore, today's models are sleeker, more cost- and energy-efficient, and manufactured by companies that have mandates for controlling greenhouse gas emissions. In the summer, this is particularly perplexing for air conditioning engineers. Yet, carbon emissions are an entirely different matter from increasing the air conditioner's efficiency. [ABSTRACT FROM AUTHOR]

The Egg Safety Action Plan released in 1999 raised many questions concerning egg temperature used in the risk assessment model. Therefore, a national study by researchers in California, Connecticut, Georgia, Iowa, Illinois, North Carolina, Pennsylvania, and Texas was initiated to determine the internal and external temperature sequence of eggs from oviposition through distribution. Researchers gathered data from commercial egg production, processing, and distribution facilities. The experimental design was a mixed model with random effects for season and a fixed effect for duration of the transport period (long or short haul). It was determined that processors used refrigerated transport trucks (REFER) as short-term storage (STS) in both the winter and summer. Therefore, this summary of data obtained from REFER also examines the impact of their use as STS. Egg temperature data were recorded for specific loads of eggs during transport to point of resale or distribution to retailers. To standardize data comparisons between loads, they were segregated between long and short hauls. The summer egg temperatures were higher in the STS and during delivery. Egg temperature was not significantly reduced during the STS phase. Egg temperature decreases were less (P < 0.0001) during short delivery hauls 0.6°C than during long hauls 7.8°C. There was a significant season x delivery interaction (P < 0.05) for the change in the temperature differences between the egg and ambient temperature indicated as the cooling potential. This indicated that the ambient temperature during long winter deliveries had the potential to increase egg temperature. The REFER used as STS did not appreciably reduce internal egg temperature. These data suggest that the season of year affects the temperature of eggs during transport. Eggs are appreciably cooled on the truck, during the delivery phase, which was contrary to the original supposition that egg temperatures would remain static during refrigerated transport. These data indicate that refrigerated transport should be a component in future assessments of egg safety. [ABSTRACT FROM AUTHOR]

Using a three-region supercritical water flow model, the core-wide in-phase stability of the U.S. reference supercritical water-cooled reactor (SCWR) design is investigated. The reactor core is simulated as three channels according to the radial power distribution. A method based on A modes (reactivity modes) expansion of neutronic kinetic equations is applied. A constant pressure drop boundary condition between the feedwater pump and the turbine control valve is assumed. Cases with and without water rods heating are studied. It is found that the stability of the U.S. reference SCWR design is sensitive to the flow restrictions in the hot fluid or the steam line. As long as the restriction in the steam line is small, the design will be stable. A pressure loss coefficient of 0.25 is assumed for the exit valve on the steam line in this analysis. With this value, the SCWR is stable with a large margin. It is concluded that the presence of water rods heating will reduce the stability margin and increase the flow rate sensitivity while maintaining the power sensitivity level. The decay ratios for the three density wave oscillation modes, i.e., single hot channel, coupled neutronic out-of-phase and in-phase, are compared at steady-state conditions. It is found that the single hot channel oscillation mode is the most limiting one in the absence of the water rods heating, while the in-phase oscillation mode is most limiting in the presence of water rods heating. [ABSTRACT FROM AUTHOR]

The triple-pressure reheat H-system combined cycle is considered the most efficient combined cycle that is commercially available. The gas turbine of the H-system combined cycle is cooled using a closed loop of steam and an open loop of air. Compared with the regular triple-pressure reheat combined cycle, the heat recovery steam generator (HRSG) of the H-system has a different configuration and a reduced load since superheating of steam is partially performed by the gas turbine. In this paper, the triple-pressure reheat H-system combined cycle was modelled, including detailed modelling of the HRSG and the expansion and cooling processes of the gas turbine. The performance of the H-system combined cycle was analysed and a feasible technique to reduce the irreversibility of the HRSG was introduced. The reduced-irreversibility triple-pressure reheat steam-air gas turbine-cooled (H-system) combined cycle was compared with the regularly designed triple-pressure reheat H-system combined cycle, which is the typical design for a commercial combined cycle. The effects of varying the turbine inlet temperature (TIT) on the performance of all cycles were presented and discussed. The results indicate that the reduced-irreversibility H-system combined cycle is 1.45-1.65 per cent higher in efficiency and 2.5 per cent higher in the total specific work than the regularly designed H-system combined cycle when all compared at the same values of TIT and minimum temperature difference for pinch points (PPm)- The reduced-irreversibility H-system combined cycle was 1.35 per cent higher in efficiency than the most efficient commercially available H-system combined cycle when compared at the same value of TIT. Economical analysis of the reduced-irreversibility cycle was performed and showed that applying the introduced technique could result in an annual saving of ten million US dollars for a 440 MW power plant. [ABSTRACT FROM AUTHOR]

The lower stratospheric polar temperature averaged from 70°N to 90°N for the month of March for the past 50 years is investigated on the basis of National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) and European Center for Medium-Range Weather Forecasts (ECMWF) ERA-40 reanalysis data in relation to the strength of the lower stratospheric eddy heat flux. The decadal component of the polar temperature in March shows a large cold anomaly during the 1990s. This decadal temperature variation in March is found to be well correlated with the transient component of the eddy heat flux, although the magnitude of the transient eddy heat flux is smaller than that of the stationary eddy heat flux. It is also found that the year-to-year time variation of the polar temperature is correlated with the stationary component of the eddy heat flux. Copyright © 2006 Royal Meteorological Society. [ABSTRACT FROM AUTHOR]

Evolution of sea fog has been investigated using three-dimensional Mesoscale Model 5 (MM5) simulations. The study focused on widespread fog-cloud layers advected along the California coastal waters during 14–16 April 1999. According to analysis of the simulated trajectories, the intensity of air mass modification during this advection significantly depended on whether there were clouds along the trajectories and whether the modification took place over the land or ocean. The air mass, with its trajectory endpoint in the area where the fog was observed and simulated, gradually cooled despite the gradual increase in sea-surface temperature along the trajectory. Modelling results identified cloud-top cooling as a major determinant of marine-layer cooling and turbulence generation along the trajectories. Scale analysis showed that the radiative cooling term in the thermodynamic equation overpowered surface sensible and latent heat fluxes, and entrainment terms in cases of the transformation of marine clouds along the trajectories. Transformation of air masses along the trajectories without clouds and associated cloud-top cooling led to fog-free conditions at the endpoints of the trajectories over the ocean. The final impact on cloud-fog transition was determined by the interaction of synoptic and boundary-layer processes. Dissipation of sea fog was a consequence of a complex interplay between advection, synoptic evolution, and development of local circulations. Movement of the high-pressure system over land induced weakening of the along-shore advection and synoptic-pressure gradients, and allowed development of offshore flows that facilitated fog dissipation. [ABSTRACT FROM AUTHOR]

Despite the on-going development of room temperature semiconductors for use as gamma-ray detectors, the only material which can provide a solution to the combined requirements of stability, high-energy resolution and high-detection efficiency (at useful energies) is still germanium (HPGe). These properties of HPGe gamma-ray detectors make them invaluable in meeting the demands of the newly emergent and increasingly important applications relating to homeland security and the interdiction of smuggled nuclear material. However, HPGe detectors require cooling to cryogenic temperatures (<120 K) to operate as gamma-ray detectors. Traditionally, this cooling has been accomplished with liquid nitrogen (LN2). The use of LN2 as a coolant is, at best, inconvenient. Maintenance, operating cost, availability at remote locations, and the hazardous nature of the material all combine to limit the practicality of a LN2-cooled device, no matter how desirable it might be from other standpoints. Mechanical methods of achieving cryogenic temperatures have existed for many years. The first mechanically-cooled HPGe systems appeared commercially in the early 1980s.1These systems had high cost, high power requirements, degraded system performance, were bulky in size, and unreliable. Other developments have produced prototype versions of portable (or transportable) mechanically-cooled HPGe systems. More recent advances in mechanical cooling technologies have the potential to make HPGe detectors easily adaptable to a wide variety of applications including battery-operated, truly man-portable systems for use in inspection, unattended monitoring, and Homeland Security. The major problems of mechanical coolers are degraded performance due to vibration and power consumption. The systems described here have reduced both of these to useable limits. The vibration or microphonic noise created in real-world systems is significantly reduced by optimizing the digital filter technology in the signal processing electronics associated with such detectors. Data presented here show reliability and performance results of the mechanically-cooled systems. These results show the improvements gained through the use of the optimally-matched digital filters. [ABSTRACT FROM AUTHOR]

The structure and intensity changes of tropical cyclones (TCs) in environmental vertical wind shear (VWS) are investigated in this study using the fifth-generation Pennsylvania State University–National Center for Atmospheric Research (PSU–NCAR) Mesoscale Model (MM5). Triply nested domains of 36-, 12-, and 4-km resolution are used with fully explicit moisture physics in the 4-km domain. Idealized environments with easterly shears of 2, 4, 6, 8, and 10 m s-1 between 800 and 200 hPa are applied on an f plane. Under small values of VWS (2 and 4 m s-1), the TC intensities are similar to that of the control (CTRL; i.e., no VWS) after initial adjustments. The TCs under 6 and 8 m s-1 of VWS are not as intense, although they do not weaken during the simulation. On the other hand, the TC in 10 m s-1 of VWS weakened significantly. Given the same VWS, the TC intensity is also found to be sensitive to TC size. Experiments with TCs with a smaller radius of 15 m s-1 wind reveal that while the TC in 2 m s-1 of VWS remains as intense as the CTRL, the TC in the 4 m s-1 VWS case weakened significantly to a minimal hurricane by the end of the simulation. A VWS of 6 m s-1 is strong enough to cause dissipation of the TC in 72 h. These results indicate that the size of a TC has to be taken into account in determining the intensity change of a TC in VWS. In the 10 m s-1 VWS case, the average temperature over the lower half of the troposphere within 50 km from the TC surface center is higher than that of the CTRL throughout the simulation. Such a warming, though of a small magnitude, is also observed for a brief period in the upper half of the troposphere before the rapid weakening of the TC and is related to the asymmetry of temperature required for a tilt of the vortex axis. The evolution of the vortex tilt is found to be similar to the dry simulations in previous studies, with the midlevel center (σ = 0.525) located mainly in the southeast quadrant of the surface center. A tendency for the midlevel center to rotate about the surface center is also observed. These results support the idea that the resistance to vertical tilt by the mutual rotation between the low-level and midlevel centers is also valid in the moist simulations. It is hypothesized that the secondary circulation and the associated diabatic heating reduce the vertical tilt and the weakening. Condensation heating offsets the anomalous cooling effect due to the anomalous rising motion ahead of the vortex tilt. For small VWS, the vertical motion asymmetry is not strong enough to destroy the complete secondary circulation and the eyewall. As a result, a large temperature asymmetry and the associated vortex tilt cannot develop. Furthermore, there is no entrainment of cool/dry air in the upper troposphere. Therefore, TCs under small shears can be as intense as the CTRL. Large-scale asymmetries in the form of anticyclones found in previous studies are also observed. These asymmetries are apparently related to the change of shears near the TCs. While the shears at outer radii stay roughly constant with time, the shears near the TC centers can have large temporal fluctuations both in magnitude and orientation. This result suggests that the location at which the VWS is estimated in observational studies could be important in determining the relationship between VWS and TC intensity change. [ABSTRACT FROM AUTHOR]

Discusses issues with regard to the cooling of a roofing system. Role of coatings in the process of cool roofing; Effect of the use of cool roofing on the use of air conditioning; Methods for determining solar reflectance on roofing materials; Information on the Energy Star program of the U.S. Environmental Protection Agency designed to provide guidance to consumers on several products, including roofing systems.

Quartz veins in porphyry copper deposits record the physiochemical evolution of fluids in subvolcanic magmatic-hydrothermal systems. We have combined cathodoluminescence (CL) petrography with fluid-inclusion microthermometry to unravel the growth history of individual quartz veins and to link this history to copper ore formation at Bingham, Utah. Early barren quartz veins with K-feldspar + biotite (potassic) alteration selvages occur throughout the 2 km vertical exposure of quartz monzonite porphyry stock. At depths of 500 m to at least 1350 m below the orebody, fluid inclusions in these barren veins trapped a single-phase CO2-bearing fluid containing ∼2-12 wt% NaClequiv. Within and to depths of 500 m below the orebody, early quartz veins contain abundant hypersaline liquid (38-50 wt% NaClequiv) and vapor-rich inclusions trapped together at temperatures of 560-350 °C and pressures of 550-140 bar, consistent with fluctuations between lithostatic and hydrostatic pressure at paleodepths of 1.4 to 2.1 km. CL petrography shows that bornite and chalcopyrite were deposited together with a later generation of quartz and K-feldspar in microscopic fractures and dissolution vugs in early barren quartz veins and wall rock. This late quartz contains hypersaline liquid (36-46 wt% NaClequiv) and vapor-rich inclusions trapped at 380-330 °C and at 160-120 bar hydrostatic pressure. We conclude that a single-phase magmatic-hydrothermal fluid underwent phase separation to hypersaline liquid (or brine) and vapor ∼500 m below the base of the orebody at a paleodepth of ∼2.5 km. Brine and vapor continued to ascend and formed multiple generations of barren quartz veins with potassic selvages. Thermal decline to temperatures below 400 °C was the main driving force for copper-iron sulfide deposition, given the lack of evidence of mixing of brines with low-salinity waters, the lack of correspondence of the ore zone with the initiation of phase separation, and no change in wallrock alteration style. [ABSTRACT FROM AUTHOR]

• Deep direct-use projects were evaluated for heating, cooling and thermal storage. • Performance was compared with non-geothermal systems and other countries. • Subsurface, surface and financial conditions significantly impact feasibility. • Attractive levelized costs of energy found for heating, cooling and thermal storage. This paper investigates the techno-economic feasibility of geothermal deep direct-use for heating, cooling, and thermal energy storage in the United States. The six 2017–2019 deep direct-use projects funded by the U.S. Department of Energy are reviewed and evaluated using the simulation tool GEOPHIRES, and results are compared with prior studies, existing geothermal district heating systems in Europe and the United States, as well as non-geothermal centralized and non-centralized heating, cooling, and thermal energy storage systems. Analysis indicates that deep direct-use feasibility varies widely, depending on subsurface characteristics, system design, and financial conditions. Project base case levelized cost of heat values ranged between $13 and $350/MWh; key drivers lowering the levelized cost of heat include higher reservoir temperatures, shallower reservoir depths, higher well flow rates, higher utilization rates, lower drilling costs, and lower discount rates. Incentives such as grants and an investment tax credit resulted in small improvements in project economics. Base case levelized cost of heat values for four projects fell within the range of levelized cost values for existing systems in Europe and the United States, and were comparable to values found in previous studies, including the 2019 GeoVision study. The lowest-cost projects for district heating had comparable levelized cost of heat values to existing fossil-fuel-driven district heating systems, and lower values than decentralized heating with natural gas boilers or heat pumps. Chilled water production with absorption chillers driven by a high-quality geothermal resource obtained attractive levelized cost of cooling values, in line with values from typical centralized cooling production facilities and lower than domestic decentralized cooling with air-conditioning units. Also, thermal energy storage is a potential deep direct-use application, where levelized cost of storage values can be obtained that are comparable to those of other thermal storage techniques such as borehole thermal energy storage and hot water storage tanks. Other aspects of deep direct-use, which are not captured in a standard levelized cost of energy metric, include the ability to decarbonize the heating and cooling supply, and provide reliability and resiliency to the energy infrastructure. These attributes are gaining increased attention and improve overall project feasibility. Finally, this paper identifies technical, market, policy, and social barriers for deep direct-use development in the United States, and provides potential approaches for reducing these barriers. [ABSTRACT FROM AUTHOR]

In this paper, a solid desiccant cooling system with a backup vapour compression system is simulated using TRNSYS and the performance of the system is evaluated in four cities in the United States with different climates. Economic analysis is performed in order to assess the feasibility of these systems and to determine the relevant economic parameters such as life cycle costs, life cycle savings and payback periods. Results show that the system has higher COP values for the locations with more latent loads. The air conditioner was able to meet the cooling demand in all four regions, but it needed more auxiliary energy in the Eastern and Mountain regions than in the Central region, because of the higher solar fraction in the Central region. The simulation also showed that the desiccant cooling system by itself was capable of meeting the cooling demand and hence the requirement of a backup system may be eliminated. Thermal and economic parameters were analysed for varying solar subsystem sizes which proved helpful in optimizing the design of the solar system. Recommendations to minimize the auxiliary energy costs using different methods for supplying the thermal energy for desiccant regeneration are described. Copyright © 1999 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Presents a conductive cooling-crystallization model for four composite pegmatite-aplite dikes in San Diego County, California. Geologic setting; Characterization of the George Ashley Dike; Conductive cooling model; Garnet crystal size distribution; Crystallization parameters; Discussion.

Introduction: Cryolipolysis is a noninvasive technique that involves the application of cooling for localized fat reduction. In recent years, cryolipolysis has been increasingly favored for its limited side effects compared to more invasive methods. Methods: Records from a public United States Food and Drug Administration (FDA) database for premarket approval of cryolipolysis devices approved between January 1, 2000 and July 15, 2018 were reviewed. Results: Eleven devices received 510(k) premarket approval, with an increasing number of devices available since 2012. In addition, product indications have recently been expanded for use in patients with body mass index (BMI) values of up to 43kg/m2. Conclusion: The number of approved cryolipolysis devices has increased, with more companies exploring the technology's growth potential in the market. Furthermore, use in patients with higher body mass index values is now permitted and expanding; however, indications are not well studied, and these marketed devices might misinform consumers and distort clinical expectations. Additional research to delineate specific practice guidelines for cryolipolysis is necessary. [ABSTRACT FROM AUTHOR]

Buildings in the United States account for nearly half of total U.S. energy use. The energy used for space conditioning can be reduced by utilizing thermal energy storage, such as phase change materials (PCMs), into building envelopes; however, the energy savings of PCM-integrated building envelopes reported in the literature vary widely. In the absence of established guidelines, thermophysical requirements of an optimal PCM, its method of application into the building envelope, and the corresponding energy savings under various climates remain unknown. In this study, we perform an extensive numerical investigation on the integration of PCM into building walls to establish the key conditions required for effective utilization of PCM in reducing heat gains in the cooling season and heat losses in the heating season. We also determine the optimal transition temperature, optimal PCM location in the wall, and the energy-saving potential of the PCM-integrated building walls in five U.S. cities located in different International Energy Conservation Code climate zones. Results show that employing PCMs in building walls does not always lead to an improvement; in fact, incorrect applications of PCMs can substantially increase energy use in the buildings. In the climates we studied, PCMs were found effective in reducing heat gains during the cooling season while mostly ineffective in managing heat losses during heating season. Depending on the climate, optimized PCMs in U.S. building walls can provide reduction in the annual heat gain in the range of 3.5%–47.2% and the annual heat loss in the range of −2.8%–8.3%. Future consideration of buildings with substantial solar gains in winter may lead to more reduction in heat losses by PCMs. [ABSTRACT FROM AUTHOR]

• Article analyzes reported thermostat settings by 494 males and 786 females living in the US. • Average male and female reported thermostat settings differ by no more than 0.3 °C [0.5 °F]. • Controlling for demographic and environmental characteristics reduces the difference. This paper examines the extent to which males and females report different thermostat settings using data from single-occupant homes in the United States. Reported thermostat settings for heating and cooling at night, at home, and when away from home are rigorously tested for behavioral differences between the sexes. In general, single-occupant males and females report the same thermostat settings on average. The lack of differences between sexes is robust to controlling for demographic characteristics and environmental variables that differ systematically between the samples using both regression and decomposition approaches. These findings have important implications for thermostat settings and thermal comfort in shared spaces. [ABSTRACT FROM AUTHOR]

The 50 largest metropolitan areas in the United States were examined to estimate the combined energy demand per person for residential heating and cooling. The analysis used heating and cooling degree days data to produce a combined index of total energy demand for climate control. The main results are as follows: (1) the two extremes on this combined index, San Diego (the lowest) and Minneapolis (the highest) show a fourfold difference in total energy demand; (2) the metropolitan areas with the greatest total energy demand are those with the greatest heating demand; (3) the areas with the greatest cooling demand have moderate total energy demand. The tabular information presented could be used as one relevant input for individual decision-making concerning where to live in the United States. [Copyright &y& Elsevier]

A team comprised of the Tai-Yang Research Company, Creare, Inc., and the Advanced Space Propulsion Laboratory at NASA has designed, fabricated and tested a high-temperature superconducting magnet and flow cooling system for a space propulsion application. The magnet bore is 16 cm dia., 5.5 cm long, and generates 0.5 T, with a design operating current of 126 A. The magnet is wound with brass laminated 1 G BSCCO conductor, epoxy impregnated, then thermally connected to a flow cooling loop with a compressor, recuperator and GM cryocooler. Flow conditions are selected to simulate operation with a space proven turbo-Brayton cryocooler. This test demonstrates that design and integration of an HTS magnet with flow cooling is feasible, and offers the advantages of compactness, low weight, high efficiency and high reliability. Design details of the magnet and cooling system and results of successful system qualification tests are reported. [ABSTRACT FROM AUTHOR]