Chapter hvac engineering Fundamentals: Part 1 Introduction

10.13
Heat Exchangers—Air Heating
A heat exchanger
coil
for air heating is of the finned-tube type, as
described in Sec. 9.7. Steam-to-air coils are frequently made in a dou-
ble-tube configuration (Fig. 10.14). The steam is supplied to the inner
tube, which has a number of small metering orifices through which
the steam passes to the outer tube. The result is a more or less uni-
Equipment: Part 2
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