mean temperature difference

mean temperature difference

[′mēn ′tem·prə·chər ‚dif·rəns]
(chemical engineering)
In heat exchange calculations, a pseudo average temperature difference between the warmer and colder fluids at inlet and outlet conditions.
References in periodicals archive ?
Furthermore, mean temperature difference (from ambient air temperature) in the reed bundles of floors two and four (-2.5[degrees]C) was significantly different (t = 3.68, P = 0.03) from that of the oak branch bundles of floors three and five (-1.3[degrees]C).
[DELTA][T.sub.m] is the mean temperature difference of convectional heat exchanging; [alpha].sub.e] is the absorptivity of the evaporator-collector; R is the intensity of solar irradiation.
LMTD = log mean temperature difference, K or [degrees]F
To address this difficulty, a so-called "constant logarithmic mean temperature difference (LMTD) analysis" method is proposed.
Since many factors affect thermal emission and detection, previous studies have analyzed the asymmetry assessed by our study.2,4 The known mean temperature difference between the two sides of various body segments is 0.11-0.5degC, and our results showed a similar difference, despite detection of pathologic inflammatory lesions.7 Deng et al.
The mean temperature difference is the temperature difference between the mean surface temperature and the ambient air temperature ([T.sup.a]).
The final resultant map presented the fact that major mean temperature difference over the three decades, i.e.
where Tu-r is the yearly mean temperature difference (C) between urban station and Lahore Airport, pop is the urban population and a and b are the constants.
Using the log mean temperature difference (LMTD) equation and other plant selection information provided by the manufacturer, heat transfer factors were derived for the dry coolers (A.U).
where [A.sub.i] = [pi][D.sub.i]L and [DELTA][T.sub.lm] is the logarithmic mean temperature difference. The outside heat transfer coefficient can be computed by Bell's procedure [6].
During the middle third of the incubation period, when sex is thought to be determined, the mean temperature difference between nest and sand was 0.56[degrees]C (n = 4; 0.21-1.44[degrees]C).
Between 1989 and 2010, the average temperatures of GXT and MY were 13.1[degrees]C and 11.5[degrees]C, respectively, with a mean temperature difference of 1.6[degrees]C between the two stations.