Commissioning of the Fresno, California, Retrofit Unoccupied Test House

Simplified Space Conditioning in Low-Load Homes: Results from the Fresno, California, Retrofit Unoccupied Test House

“…Building Energy Optimization (BEopt) modeling shows energy savings of 50.1%. Full specifications for this house are documented by Stecher and Imm (2013).…”

“…The zone damper numbers in Table 1 correspond with the labels shown in Figure 2 and Figure 3. The detailed house and system design and commissioning were documented by Stecher and Imm (2013). (Rutkowski 2009) to provide airflows to meet ACCA Manual J loads (Rutkowski 2006, Stecher andImm 2013).…”

“…The detailed house and system design and commissioning were documented by Stecher and Imm (2013). (Rutkowski 2009) to provide airflows to meet ACCA Manual J loads (Rutkowski 2006, Stecher andImm 2013). Figure 2 shows the distribution system layout.…”

“…Assuming a temperature difference between the supply air and room air of 25°F, the total delivered energy that 40 CFM can deliver is 1,084 Btu/h. This value is approximately 7% of the total peak load of the house (Stecher and Imm 2013), most likely inadequate for sufficient occupant comfort if used as the sole source of space conditioning. However, if the conditioned ventilation supply air were delivered to only the three bedrooms of the house, the difference between the delivered load and the required load would be halved.…”

“…(The numbers on Figure 5 correspond to the zone damper numbers in Table 1.) Full specifications were documented by Stecher and Imm (2013). Table 1)…”