tailieunhanh - Ebook Heat-Transfer calculations: Part 2

(BQ) Part 2 book "Heat-Transfer calculations" has contents: Heat-Transfer-Coefficient determination; tubes, pipes, and ducts; heat exchangers; fluidized beds; parameter and boundary estimation; temperature control; thermal analysis and design; economic optimization. | P1: IML/OVY P2: IML/OVY GRBT056-20 Kutz-2103G QC: IML/OVY T1: IML July 21, 2005 13:25 Source: Heat-Transfer Calculations Chapter 20 Parameter Estimation of Low Temperature, Low Energy Carrier (LoTEC c ) Francis C. Wessling Department of Mechanical and Aerospace Engineering University of Alabama in Huntsville Huntsville, Alabama James J. Swain Department of Industrial and Systems Engineering and Engineering Management University of Alabama in Huntsville Huntsville, Alabama A Low Temperature, Low Energy Carrier (LoTEC c ; see Fig. ) is a passive thermal carrier designed to permit payload transport to and from the International Space Station at approximately constant temperature without external power [1]. Further details on LoTEC are given in a companion calculation in Chap. 19. An analysis of the transient response of LoTEC with one-dimensional assumptions (see Fig. ) is presented in the companion calculation. This solution is for the case of a ramp temperature as shown in Fig. . As shown in the figure, the temperature of the environment TE varies over time, starting at the initial temperature of the LoTEC and rising to a final temperature of Tc over a period t0 . The solution of the transient temperature response TI (t) for the inner liner of the LoTEC is given in Eq. () of Chap. 19 (above) and is Downloaded from Digital Engineering Library @ McGraw-Hill () Copyright © 2004 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. P1: IML/OVY P2: IML/OVY GRBT056-20 Kutz-2103G QC: IML/OVY T1: IML July 21, 2005 13:25 Parameter Estimation of Low Temperature, Low Energy Carrier (LoTECc©) Transient and Cyclic Calculations Figure Low Temperature, Low Energy Carrier (LoTEC). reproduced here as Eq. (): TI (t) = Tc + ∞ Tm(␣, ␤, ␥, zi , L, t) () i=1 where Tm(␣, ␤, ␥, L, z, t) .

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