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【導(dǎo)讀】AdvancedEnergy. HabitatforHumanity. Originofthestudy. RelativeHumidity. Allergens. Ventilation. Exhaust. 36homesincentralNC. 4HabitatAffiliates. ~1200SFperhouse,2-3beds,2baths. Tightconstruction. Improvedinsulation. “Right-sized”HVAC. Pressurebalancing. Closedcrawlspace. Outdoorairintake. MaintainsRHbelow70%--the“moldsuppressing”zone
【正文】 submetered * Submetered later in the study B a s e l oa d a na l y s i s w / ou t D H W a nd B a s e ou t l i e r s020040060080010001200O c t N o v D e c J a n Fe b M a r A p r M a y J u n J u l A u g S e pMonthly kWhB a s e l oa d I B a s e l oa d N IResults – energy use E n e r g y u s e b r e a k d o w n a c r o s s h o u s e t y p e0200400600800100012001400A v g M a in A v g D H W A v g C o m p A v g A H A v g S C A v g B a s eMonthly kWhI n t e r v e n t i o n N o n I n t e r v e n t i o n Space conditioning saving % total (~% of total energy savings) % June – August/ % July – September Intervention homes use more energy in every other category (nonspace conditioning) Hot water Whole House AC Compressor Intervention NonIntervention Air Handler Space Conditioning Base E ne r gy us e br e a k do w n a c r os s ho us e t y pe w / ou t ou t l i e r s0200400600800100012001400A v g M a i n A v g B a s e w / o D H W A v g S C A v g D H WMonthly kWhI nt e r v e nt i on N on I nt e r v e nt i on20202020 Space conditioning – intervention houses use % less energy A v e r a ge e ne r gy us e br e a k do w n a c r os s a l l ho m e s1 0 0 . 0 %4 1 . 2 %3 6 . 6 %2 3 . 5 %2 2 . 1 %1 1 . 6 %0 . 0 %1 0 . 0 %2 0 . 0 %3 0 . 0 %4 0 . 0 %5 0 . 0 %6 0 . 0 %7 0 . 0 %8 0 . 0 %9 0 . 0 %1 0 0 . 0 %M a i n B a s e ( w / oD H W )SC C o m p DHW AHMonthly kWh?National household size of people ? for NC for Wake Co. ? for Raleigh for Durham Co. ? for Durham ? for this study Number of people per house 76 61061246810Count2 3 4 5 6 7Level Count Prob 2 7 3 6 4 6 5 10 6 6 7 1 Total 36 Mean crawl conditions a. DRY SEASON [DECEMBER 15 – MARCH 15] Status Mean Crawl Temp St Dev Crawl Temp Mean Crawl RH St Dev Crawl RH I N b. SPRING SHOULDER [MARCH 15 – MAY 15] Status Mean Crawl Temp St Dev Crawl Temp Mean Crawl RH St Dev Crawl RH I N c. WET SEASON [MAY 15 – OCTOBER 15] Status Mean Crawl Temp St Dev Crawl Temp Mean Crawl RH St Dev Crawl RH I N d. FALL SHOULDER [OCTOBER 15 – DECEMBER 15] Status Mean Crawl Temp St Dev Crawl Temp Mean Crawl RH St Dev Crawl RH I N
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