Design (i.e., determine the overall area and a suitable arrangement of shell and tube passes) for a
Question:
Design (i.e., determine the overall area and a suitable arrangement of shell and tube passes) for a tubular-feed water heater capable of heating 2,300 kg/h of water from 21 to 90°C. The following specification are given
(a) Saturated steam at 920 kPa absolute pressure is condensing on the outer tube surface,
(b) Heat transfer coefficient on steam side is 6800 W/(m2 K),
(c) Tubes are of copper, 2.5 cm, 2.3 cm ID, 24 m long, and
(d) Water velocity is 0.8 m/s.
GIVEN
- A tubular-feed water heater, condensing saturated steam on outside
- Water flow rate (mw) = 2300 kg/h = 0.639 kg/s
- Water temperatures
- Tw,in = 21°C
- Tw,out = 90°C
- Steam temperature = 920 kPa absolute
- Heat transfer coefficient on steam side (ho) = 6800 W/(m2 K)
- Tubes are copper
- Di = 2.3 cm = 0.023 m
- Do = 2.5 cm = 0.025 m
- Water velocity (V) = 0.8 m/s
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Principles of heat transfer
ISBN: 978-0495667704
7th Edition
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
Question Posted: