Energy-Efficient Management of Mechanical Ventilation and Relative Humidity in Hot-Humid Climates
- Building America Partnership for Improved Residential Construction, Cocoa, FL (United States)
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.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1334993
- Report Number(s):
- NREL/SR--5500-65002; DOE/GO--102016-4766
- Country of Publication:
- United States
- Language:
- English
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