pipe wall temperature at points of attachment of bundles from body i in K; Twn pipe wall temperature at point of attachment for bundle n in K; (oi) n and o i thermal conductivities of bundle n and all bundles from body i in W/K; oij thermal conductivity between bodies i and j in W/K; Oci, oZ, Ocw thermal conductivities from case to body i and total and radiative conductivities from case to pipe in W/K; ~c convective heat-transfer coefficient between pipe and coolant in W/m2"K; ~r radiative heat-transfer coefficient between case and pipe in W/m2-K; pipe material thermal conductivity in W/m.K; c specific heat of helium at constant pressure in J/kg'K; q and qr correspondingly densities of the total heat flux and radiative flux to the pipe in W/m2; Pr heat flux along bundle r in W; M coolant mass flow rate in kg/sec; F tube cross section area in m2; S i and S o inside and outside surface areas of pipe in m2; L pipe length in m; x = x/L relative coordinate along pipe axis; x r relative coordinate for bundle r attachment; R total number of bundles; N i number of bundles cooling body i; Ji number of bodies linked by heat bridges to body i; ~i relative error in calculating the temperature of body i by comparison with numerical result in %; ~w mean relative error in heat exchanger temperature calculated numerically by comparison with temperature from (4) taken at ten equally separated points in %; ~(X--~r) Dirac function. LITERATURE CITED i. M. Akamatsu, M. Taneda, Y. Ohtsu, et al., Adv. Cryog. Eng., 31, 559-566 (1986). 2. V. A. Romanenko, S. V. Tikhonov, S.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.