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The number of transfer units (NTU) method is used to calculate the rate of heat transfer in heat exchangers (especially parallel flow, counter current, and cross-flow exchangers) when there is insufficient information to calculate the log mean temperature difference (LMTD). Alternatively, this method is useful for determining the expected heat ...
The preference is to pass the hot fluid through the inner tube to reduce heat losses, while the annulus is reserved for the high viscosity stream to limit the pressure drop. Beyond double stream heat exchangers, designs involving triple (or more) streams are common; alternating between hot and cool streams, thus heating/cooling the product from ...
In 1983, the USS Mahan was underway to test and evaluate the Terrier New Threat Upgrade (NTU) Combat System.. New Threat Upgrade (NTU) was a United States Navy program to improve and modernize the capability of existing cruisers and destroyers equipped with Terrier and Tartar anti-aircraft systems, keeping them in service longer.
Nomal operating flux and pressure drop are between 3-7 gpm/ft2 and 3-7 psi. When pressure drop increases above 10 psi, a backwash operation ins needed, which consist of reversing the flow (water goes upwards) in order to remove the particles trapped in the filtering media, and this will exit from the top of the filter with the backwash water.
The University of Queensland pitch drop experiment, demonstrating the viscosity of bitumen. A pitch drop experiment is a long-term experiment which measures the flow of a piece of pitch over many years. "Pitch" is the name for any of a number of highly viscous liquids which appear solid, most commonly bitumen, also known as asphalt. At room ...
The NTU RGB-D (Nanyang Technological University's Red Blue Green and Depth information) dataset is a large dataset containing recordings of labeled human activities. [1] This dataset consists of 56,880 action samples containing 4 different modalities (RGB videos, depth map sequences, 3D skeletal data, infrared videos) of data for each sample.
Drop and insert is practiced, for example, in time-division multiplexing (TDM) when a time slot or frequency band is replaced from another source. The diverted signal may be demodulated or reinserted into another transmission system in the same or another time slot or frequency band.
Third and final test launch of the solid-fuel launch projectile developed by the ADD. First case of a civilian-led SAR satellite launch within South Korea. 4 December 23:33 [144] Ceres-1: Y9 Jiuquan LS-95A Galactic Energy: Tianyan-16 MinoSpace : Low Earth Earth observation: In orbit: Operational Xingchi-1A Ellipse SpaceTime Low Earth