M-62-04 SHC-1.4-61RQH-R-0070 Manual
Revision - Date: 02 – 09/23/2015
6
INTRODUCTION (CONTINUED):
Multi-Pass Flow Application:
For a multi-pass application, the SHC heater will elevate and maintain the temperature of a
fixed volume of solution as it is circulated. Use the following formula to estimate the heat-up
time for a volume of fluid in a multi-pass system. For estimating purposes, the specific heat
and weight of water are often used. However, more accurate results will be achieved using the
properties of the specific solution.
Volume X Density X Temperature rise X Specific heat
(liters(L)) (kg/L) (°C) (J/kg x °C)
1.4 kW
X 60,000
This formula does not take into account any heat losses to the surrounding environment. Other
factors that must be considered include heat losses through plumbing and exposed process
tank surfaces, and the load placed on the heater by the introduction of cold products and
chemicals into process tanks.
Heat-up Time
minutes
=
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