The energy data reported in the table is generated from this method using hourly temperature and humidity readings furnished by the National Weather Service (NWS). It can be applied in practical situations to quickly and accurately analyze operational costs of hvac systems that are directly influenced by the weather. The following is a very brief summary of the energy data provided in the table. More detail with examples on how the data can be applied will follow in upcoming issues.
Outside air ventilation heating and cooling. This data represents the total (sensible plus latent) cooling energy in ton-hrs/cfm of outside air and the sensible heating energy in therms/cfm required to maintain a constant 55?F.
Humidification water consumption. This is the water consumption in gal/cfm of outside air required to maintain 30% rh at 70? space temperature. The data can be used to calculate water consumption and humidification energy costs.