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BN-97-03-4 — Inhibited Ethylene and Propylene Glycols for Corrosion and Freeze Protection in Water-Based HVAC Systems

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Conference Proceeding by ASHRAE, 1997

Category:

Description

Industrially inhibited ethylene and propylene glycols are used extensively to provide protection against equipment damage due to corrosion and freezing. This paper will describe the proper use of these glycols, including system preparation, fluid installation, and fluid maintenance. The impact of the use of these glycols on the operation of the system is discussed along with methods for overcoming any declines in heat transfer. From this discussion, it will become clear why automotive antifreeze formulations should not be used in heating, ventilating, and air-conditioning (HVAC) systems. Also included are data on the physical properties of aqueous solutions of ethylene and propylene glycol, the concept of burst vs. freeze protection, typical results of corrosion tests, and methods to use to monitor the fluid for each application.

Units: Dual

Citation: Symposium, ASHRAE Transactions, Vol.103, Part 2, Boston 1997

Product Details

Published:
1997
Number of Pages:
10
File Size:
1 file , 190 KB
Product Code(s):
D-27336