PRTU

AcronymDefinition
PRTUProgressive Recognised Teachers' Union (India)
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Configuration D: Baseline model + envelope thermal resistance increased by 100%, reduction in outside air infiltration by 50%, PRTUs with economizers with out-side air dry-bulb and differential enthalpy controls
Configuration E: Baseline model + envelope thermal resistance increased by 100%, reduction in outside air infiltration by 50%, PRTUs with demand control ventilation (DCV) and economizers with outside air dry-bulb and differential enthalpy controls
Configuration F: Baseline model + envelope thermal resistance increased by 100%, reduction in outside air infiltration by 50%, PRTUs with energy recovery ventilation (ERV), DCV, economizers with outside air dry-bulb and differential enthalpy controls.
Configuration G: Baseline model + envelope thermal resistance increased by 100%, reduction in outside air infiltration by 50%, PRTUs with energy recovery ventilation (ERV), DCV, economizers with outside air dry-bulb and differential enthalpy controls, and an increase in HVAC equipment's efficiency by 1%.
However, there were three modifications to the baseline model with existing PRTUs that provided the greatest savings in energy consumption.
0 G Figure 8 Site EUIs for the baseline model with PRTUs with cumulative energy consumption retrofits and modifications.
Energy consumption benefits from the inclusion of photo-voltaic modules hypothetically installed on the roof of the Lincoln Theater were evaluated via hourly system simulations to obtain the site EUIs for the baseline model with PRTUs (Figure 10) and with GSHPs (Figure 11).
9 K Figure 10 Site EUIs for the baseline design model, and baseline models with PRTUs with cumulative minimum energy consumption retrofits and modifications--40% and 80% PV roof coverage.
For the models with PRTUs, PV modules with 40% and 80% roof coverage (Figure 10) reduced the site EUI from 135.
The most significant reductions in building energy consumption expressed in EUI have been achieved through the addition of demand control and energy recovery ventilation, the replacement of PRTUs with a ground source heat pump system, and the addition of photovoltaic arrays.