𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The comparison of longitudinal wall conduction effect on the crossflow heat exchangers including three fluid streams with different arrangements

✍ Scribed by Ping Yuan; Hong-Sen Kou

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
588 KB
Volume
21
Category
Article
ISSN
1359-4311

No coin nor oath required. For personal study only.

✦ Synopsis

This study investigates the eect of longitudinal wall conduction on a cross¯ow heat exchanger including three ¯uid streams with three dierent arrangements. By using numerical method, this study calculates the exit mean temperature of each ¯uid stream and then computes the deterioration factor of each ¯uid stream in each arrangement. The results indicate that the eect of longitudinal wall conduction for ¯uid stream 3 in ®rst arrangement is more severe than that in second arrangement when the heat capacity rate ratio of ¯uid stream 1 is same to that of ¯uid stream 3. The deterioration factor of ¯uid stream 2 is aected slightly by the change of inlet temperature of ¯uid stream 3 in ®rst and second arrangements. Besides, the longitudinal wall conduction strongly deteriorates the thermal performance of heat exchangers including three ¯uid streams at lower heat capacity rate ratios.

📜 SIMILAR VOLUMES

Performance of a counter flow heat excha
Performance of a counter flow heat exchanger with longitudinal heat conduction through the wall separating the fluid streams from the environment
✍ G. Venkatarathnam; S.Pradeep Narayanan 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 443 KB

The eectiveness of all high eectiveness heat exchangers used in cryogenic systems is largely controlled by the longitudinal heat conduction through the walls. Most authors have assumed that the longitudinal heat conduction occurs only through the wall separating the ¯uid streams, and not through the