Judul: Analisis Kenyamanan Termal dengan Metoda Computational Fluid Dynamics pada Ruang Kuliah Fateta, Institut Pertanian Bogor
Abstrak: Kenyamanan termal merupakan suatu kondisi yang sangat penting untuk menunjang fungsi dari segala akvitas di dalam ruang. Faktor-faktor yang berpengaruh terhadap kenyamanan termal antara lain: suhu, kelembaban, dan aliran udara. Pada penelitian ini dilakukan pengukuran kondisi kenyamanan pada RK.V 03.1, FATETA, IPB dengan menggunakan metoda computational fluid dynamics (CFD) dan menganalisis nilai overall thermal transfer value (OTTV). Hasil perhitungan OTTV pada RK.V 03.1 sebesar 31,81 W/m2 yang berarti sudah sesuai dengan SNI 03-6389-2000. Hasil simulasi kenyamanan termal pukul 14:00 pada ruang RK.V 3.01 menunjukkan suhu udara 33,39°C, kelembaban 58,71%, dan kecepatan aliran udara sebesar 0,14 m/detik pada titik 4. Ruangan ini menurut SNI 6390:2011 dikatakan tidak nyaman. Setelah dilakukan modifikasi pada ventilasi atap bangunan maka suhu udara di titik 4 mengalami penurunan sebesar 0,78°C sedangkan kelembaban mengalami peningkatan sebanyak 0,48%, dan kecepatan aliran udara 0,16 m/ detik.
Keyword: kenyamanan termal, overall thermal transfer value, ruang kuliah, simulasi, ventilasi atap

Judul: Analisis Kenyamanan Termal Gedung Kuliah B1, Fakultas FEMIPB, Beratap Hijau Tanaman Sambiloto dengan Teknik Simulasi Berbasis CFD
Abstrak: Green roof are building’s roof that covered by vegetation. Green roof applications are able to keep room temperature comfort. This study aimed to fine out thermal condition of Class Room B1, Faculty of Economic and Management, IPB. Class Room B1 drawing is built by Solidworks 2012 program. In this research are compare the thermal comfort of B1 classroom which used a concrete roof, plant roof and opening optimization. The green roof use sambiloto plant this research result found out that the. Highest effective temperature (TE) existing condition at 13.00 o’clock 28°C TE with relative humidity (RH) is about 77%-79%. Green roof application can keep TE at 13.00 o’clock up to 25.1°C with relative humidity is about 75°C-77°C. Opening optimalization of entrance doors at the green roof building able to decrease the TE at 13.00 o’clock up to 23.1°C with RH 46%- 48%. Room conditions with this modification, at 10.00-14.00 o’clock, are with in the thermal comfort zone with TE is about 21°C-23.1°C and relative humidity is about 40%-50%. Reduction of RH is caused by change of air circulation from the entrance opening.
Keyword: simulation, solidworks, thermal comfort, Computational Fluid Dynamics, green roof

Judul: Lejeuneaceae Subfamily Ptychanthoideae (Hepaticae) in  West Java
Abstrak: Subfamily Ptychanthoideae of the family Lejeuneaceae (Hepaticae) in West Java is still poorly known. Publications on this subfamily are out of dated and written in the 19th or early of 20th century. The last taxonomic treatment of Ptychanthoideae of West Java was in 1933, many species names have changed since then. Studies on Ptychanthoideae of West Java are urgently needed. Studies on the Ptychanthoideae were based on the specimens collected from West Java. A total number of 361 of specimens deposited in the Herbarium Bogoriense (BO), Herbarium Biotrop (BIOT), Gottingen Herbarium (GOET) and Bangi Herbarium (UKMB) were examined, those are old and several recent specimens collected in West Java. Recent collections were made from Telaga Warna, Ciater, Gunung Halimun Salak National Park, Cibodas Botanical Garden, Bodogol Education Center and Conservation (Gunung Gede Pangrango National Park), University of Indonesia Campus Depok, including several collections from Banten Province. Twenty four species of Lejeuneaceae subfamily Ptychanthoideae are known from West Java, belonging to 8 genera namely Acrolejeunea (Spruce) Schiffn. (2 species), Archilejeunea (Spruce) Schiffn. (1 species), Lopholejeunea (Spruce) Schiffn. (10 species), Mastigolejeunea (Spruce) Schiffn. (3 species), Ptychanthus Nees (1 species), Schiffneriolejeunea Verd. (1 species), Spruceanthus Verd. (2 species) and Thysananthus Lindenb. (4 species). Two new records of Ptychanthoideae: Mastigolejeunea indica Steph. and Thysananthus minor Verdoorn are reported for Java. A determination key to the species is presented including their descriptions and illustrations.
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