Konveksi Paksa Perpindahan Kalor Secara Konveksi

164 Mudah dan Aktif Belajar Fisika untuk Kelas X 0?08G0=638:4;C0:0=;47B0=0730=B0=00=4=G4101:0= ?4=6C0?0=B4?40=6:0?;4738=38=6:020;80=C0?08:40B0AA4200 :=D4:A8B830:1490;0=A478=660C0?08:410;890BC7:430;0B0=07 30=B0=00=30;014=BC:H0B2080300:78=G0:4;41010=C300 30;0C07:02030?0BB49060A4?0=90=60380A8:0;0B070814 ;0=6AC=6

c. Radiasi Benda Hitam

0415 J 30=68 0-5:. J 4=G0B0:0= 107E0 14A0=G0 4=468 G0=6 38?0=20:0= ;47 AC0BC ?4C:00=?4A0BC0=E0:BC?4A0BC0=;C0AA410=38=634=60=?0=6:0B 4?0BAC7C?4C:00=8BC30?0B38BC;8A34=60=?4A000= 4B40=60= 4=468G0=638?0=20:0=0B0C38A40??4A0BC0=E0:BC?4A0BC0= ;C0A A 0B0CE0BB :=AB0=B0CCB450=;BH0==K J E0BB AC7CCB;0: 48A8D8B0A?4C:00=B830:14A0BC0= =BC:14=3078B0A4?C=07060 14=3014=30;08=7060 :458A84=48A8D8B0A=G0;4187:428;308?030A0BCA430=6:0=C=BC:14=30 14E0=0?CB87A4?C=0 0601460=BC=6?030:40300=?4 C:00=14=30G08BC:4:0A00==G0A4B0E0=030814=30=468G0=6 38?0=20:0=;47A41C0714=3030;0A0BC0=9C;438B4=BC:0=34=60= ?4A000= J J 4B40=60= 4=468G0=638?0=20:0=;47?4C:00=14=30 ;C0A?4C:000=14=30 ;00E0:BC48A84=468A4:= 8:03810=38=6:0=B47030?;8=6:C=60=G0=614AC7C ?4A000= =G00:0=4=9038 J 41C0714=3048;8:8?4C:00=78B0A4?C=014AC7C IC0A?4C:00= 2 40=20:0=4=468:4;8=6:C=60=G0=614AC7CI4=BC:0=4=468?4 A0BC0=E0:BCG0=638?0=20:0=14=30B4A41CB 8 14=3078B0 2 K J Contoh 7.8 J 4=40?0=:=A4?0380A830;0:4783C?0=A470870810=G0:38 9C?082=B7=G0?410:00=?0300;0B?40=660=6+?4=648=60= :?830=B410:0C30=A8AB4?4=38=68=0B0C?40=0A0=C07 Seorang petinju profesional setelah selesai bertanding berada di ruangan yang bersuhu 15°C. Berapa laju energi yang dikeluarkan tubuhnya jika suhu tubuhnya saat itu 34°C, emisivitasnya 0,7, dan luas tubuhnya yang berhubungan langsung dengan udara adalah 1,5 m 2 ? Tantangan untuk Anda 165 Kalor K J E0BB K J . J K J , 03814A04=468?4A0BC0=E0:BCG0=638?0=20:0=;4714=30B4A41CB030;07 , 030AC7C A41C0714=3040=20:0=4=468A414A0 A40?04=468 G0=638?0=20:0=14=30B4A41CB?030AC7C 8 8:4B07C8 A A 0384=468G0=638?0=20:0=14=30?030AC7C 030;07 A Contoh 7.9 Tes Kompetensi Subbab B 3+,--.6,6-5 47?0=0A14AC7CI38BC0=6:0=:430;03C0 1C07B4:G0=6A0BCB4::408:E0=078B0 30=A0BC=G0;068B4:4=68;0B 8:0AC7CC0=6I140?0:424?0B0=78;0=6=G0 :0; 308 A4B80? B4: :4 ;8=6:C=60= 98:0 ;C0A ?4C:00=B4:030;07K J 4=603C: B41C0B 308 0;C8=8C 34=60= ;C0A ?4=0?0=6 30=?0=90=6 2 8:0AC7C08 30;01490=0 IAC7C38C9C=6?4=603C:I 30=:=3C:B8D8B0AB40; ,IB4=BC:0= 0 :424?0B0=0;80=:0;?0300;80=:0;?030 ?4=603C: 1 :0;G0=64=60;84;0;C8?4=603C:A4;00 90 ?8?0=0A14AC7CI38BC0=6:0=:430;0 20=6:8:408:E0=02:4;0B 8:0AC7C C0=6IB4=BC:0=:424?0B0=78;0=6=G0:0;308 20=6:8:4;8=6:C=60=;C0A20=6:8 2 A0A;02:4=G0B0:0=107E09C;07:0; G0=638;4?0A?030AC0BCA8AB40:0=A00 34=60=9C;07:0;G0=638B480 4C080=?030H0B?030B30?0B3800B84 ;0;C8?4C1070=?0=90=6;C0A30=D;C4 030 CC=G0 ?4C080= H0B 208 70=G0 30?0B 3800B8 4;0;C8 ?4C1070= D;C4 A090 Rangkuman 0;030;074=468G0=638?8=307:0=308 AC0BC14=30:414=30G0=6;08= 0; 94=8A 30?0B 383458=8A8:0= A410608 10=G0:=G0:0;G0=638?4;C:0=AC0BCH0B C=BC:4=08::0=AC7C :6H0BB4A41CB A414A0 I 0?0A8B0A :0; 030;07 10=G0:=G0 G0=6 38?4;C:0=C=BC:4=08::0=AC7C14=30 A414A0 I Kata Kunci • konduksi • konveksi • radiasi • rumah kaca • radiasi benda hitam