Abstract
In hot and humid climates, it is challenging to energy-efficiently maintain indoor RH at acceptable levels while simultaneously providing required ventilation, particularly in high performance low cooling load homes. The fundamental problem with solely relying on fixed capacity central cooling systems to manage moisture during low sensible load periods is that they are oversized for cooler periods of the year despite being 'properly sized' for a very hot design cooling day. The primary goals of this project were to determine the impact of supplementing a central space conditioning system with 1) a supplemental dehumidifier and 2) a ductless mini-split on seasonal energy use and summer peak power use as well as the impact on thermal distribution and humidity control inside a completely furnished lab home that was continuously ventilated in accordance with ASHRAE 62.2-2013.
Original language | American English |
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Number of pages | 87 |
State | Published - 2016 |
Bibliographical note
Work performed by Building America Partnership for Improved Residential Construction, Cocoa, FloridaNREL Publication Number
- NREL/SR-5500-65002
Other Report Number
- DOE/GO-102016-4766
Keywords
- BA-PIRC
- Building America
- dehumidification
- ductless mini-split
- mechanical ventilation
- relative humidity control
- residential
- residential buildings