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Title: High efficiency dehumidification system
Authors: Duncan, Scot M.
Chu, Dahtzen.
Keywords: Buildings
Molds (Fungi)--Control
Sick building syndrome
Publisher: Construction Engineering Research Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CERL TR-18-19
Abstract: The current “industry standard” method to control relative humidity (RH) and biological growth involves sub-cooling air to condense moisture out of the air, then reheating the same air that was just sub-cooled to reduce the RH of the air before it enters the space. However, the heating, ventilating, and air-conditioning (HVAC) systems at many Federal Facilities are not equipped with (or do not use) the required reheat function, so high indoor RH and the growth of mold are often inevitable occurrences. The High Efficiency Dehumidification System (HEDS) is a patent-protected, proprietary energy recovery method designed to save more than 50% of the dehumidification-related cooling and heating plant energy in RH controlled environments. This work validated the performance of a new HVAC dehumidification technology and investigated performance claims, installation costs, and maintenance impacts through the installation of two test units at Tinker Air Force Base (AFB), OK and Fort Bragg, NC. Based on the results of the ESTCP tests from Fort Bragg, NC and Tinker AFB, OK, HEDS significantly exceeded the energy savings targets, providing HVAC system savings related to the cooling, dehumidification and reheat process of 50% to well over 70%. HEDS appears to be a viable, low maintenance, effective alternative to current RH control technologies, and can be a significant contributor to meeting energy savings Policies, Mandates, and Executive Orders.
Description: Technical Report
Gov't Doc #: ERDC/CERL TR-18-19
Rights: Approved for Public Release; Distribution is Unlimited
Size: 189 pages / 16.95 Mb
Types of Materials: PDF/A
Appears in Collections:Technical Report

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