Energy recovery ventilator

Applicability of a CO2-based Demand Controlled Energy Recovery Ventilator to a Test Bedroom with Varying Simulated Occupancy

Submitted by on Wed, 06/28/2023 - 17:37

Indoor air quality is a major area of concern in northern housing and could be influenced by ventilation. The required ventilation rate set by North American ventilation standards (ASHRAE 62.2, CSA-F326) is calculated on the basis of fixed floor area and number of bedrooms or people. The heat/energy recovery ventilators (HRV/ERV) on the market offer constant airflows and are selected to meet the required ventilation.

Preventing condensation and frosting in an energy recovery ventilator using a preheat coil

Submitted by on Thu, 11/23/2017 - 10:05

One of the problems presented by energy recovery ventilators (ERV) is the condensation/frosting problem that occurs during winter time. In order to prevent this problem, preheating outdoor air is the most common method used nowadays. The aim of this research is to evaluate preheat coil capacities according to different indoor/outdoor inlet air conditions (temperatures and humidities) and sensible/latent effectiveness of ERV (εS, εL).