Lancaster, Pennsylvania – January 6, 2014 – Advanced Cooling Technologies, Inc. (ACT), Lancaster, PA., has released an easy-to-use web-based selection tool for its energy recovery line of Wrap-Around Heat Pipe Heat Exchangers (WAHX). WAHXs change the sensible heat ratio of an active cooling coil (DX or Chilled Water) resulting in passive pre-cooling with enhanced dehumidification while delivering free, passive reheat. The WAHX selection tool calculates the number of heat pipe rows and the fin count required to meet the input design conditions. The selection tool also provides the tons of cooling saved relative to a system without a WAHX and the free, passive reheat savings.
Benefits of the WAHX System
ACT’s WAHX product is typically installed in air handlers that draw the majority of the supply air from outside the building, for example dedicated outdoor air systems (DOAS). A DOAS system, or any system with a high percentage of outside air, is burdened with higher latent and sensible loads compared to an air handler that recycles the majority of the air. The WAHX provides enhanced dehumidification by changing the sensible heat ratio of the active cooling coil. The first section of the WAHX precools the incoming air stream. Accordingly, more of the active cooling coil capacity can be utilized for latent cooling (moisture removal). The second section of the WAHX, the reheat coil, returns the energy extracted from the air stream by the precool coil, providing passive, free reheat for applications that currently use electric or natural gas reheat. The WAHX does add a relatively small amount of additional static pressure drop to the air handler, which is also provided by the selection tool.
WAHX Selection Tool Capabilities
This WAHX Selection tool is intended to provide the designer with the capability to perform a preliminary design selection and to evaluate performance at various design conditions. It is also intended to be a tool to communicate engineering requirements and design targets to ACT for additional calculations and/or for preparing a quotation.
There are two useful output options for the selection tool. One is a “Print to PDF”, which will capture all of the on screen data in a savable PDF format. The other is a “Submit to ACT” which will capture all of the screen data, including the project information that the user enters, and sends it to an ACT engineer for further assistance or quotation. Please visit www.1-ACT.com/HVAC/WAHX and give this new selection tool a try.