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: 12-05-23 18:08
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Stefano
12-05-23 18:34
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rainmy12
12-05-23 22:52
ÀÌ°Å 5¹øÀ̳ª Ã¥ ã¾Æ”f´Âµ¥ µµÀúÈ÷ ¼Õµµ ¸ø´ë¼ ¿Ã·Ç´Â °Ì´Ï´Ù ³ª»Ú°Ô º¸Áö¸¶¼¼¿ä¤Ð Á¤¸» Èûµì´Ï´Ù
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Stefano
12-05-24 12:44
¿ì¼± ¹®Á¦ Çϳª¾¿¸¸ °ñ¶ó Ç®¾îº¸°í ÇØ°áÇØ º¸µµ·Ï ÇսôÙ.
¿ì¼± ¹®Á¦ Çϳª¾¿¸¸ °ñ¶ó Ç®¾îº¸°í ÇØ°áÇØ º¸µµ·Ï ÇսôÙ.
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rainmy12
12-05-24 14:36
rainmy12@naver.com
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Stefano
12-05-24 22:39
A5.5....
(0) ÈÀçÃʱâ, Áï ¹ßÈÃʱâ t=0ÀÏ ¶§ÀÇ ¹ß¿·®
qo = 0 kW
(1) ÈÀ缺Àå±â, Áï t=0 ~ t1 ±¸°£¿¡¼ÀÇ ¹ß¿·®
q= 0-->q1ÀÌ µÉ ¶§±îÁöÀÇ ½Ã°£= t1 sec
¹ßÈÃʱ⿡¼ÀÇ ÈÀç ¼ºÀåÀ² =¹ß¿·® Áõ°¡¼Óµµ, ¥á1 = 0.08 kW/s^2
ÀÌ ±¸°£¿¡¼ÀÇ ¹ß¿·®, q(t) = qo + (0.08)*t^2 = 0.08*t^2 ------------(1)
(2) ÈÀçÁö¼Ó±â, Áï t=t1 ~ t2±îÁö ±¸°£¿¡¼ÀÇ ¹ß¿·®
¹ßÈÁö¼Ó½Ã°£= 800 sec
ÈÀçÁö¼Ó±â¿¡¼ÀÇ ¹ß¿·® Áõ°¡¼Óµµ =0
q(t) = 2500 kW ---------------(2)
(3) ÈÀç¼èÅð±â(t2~t3±îÁö)¿¡¼ÀÇ ¹ß¿·®
¹ß¿·® °¨¼è¼Óµµ, ¥á1 = -50 t kW/s
q(t) = 2500 - 50 t -------------(3)
¼èÅð½Ã°£ q=0ÀÌ µÉ¶§±îÁöÀÇ ½Ã°£ 50 s
(4) °¢±¸°£¿¡¼ÀÇ ´©Àû ¹ß¿·®
±¸°£1 Áö¼Ó½Ã°£ = (2500/0.08)^1/2 = 176.78 s
±¸°£2 Áö¼Ó½Ã°£ = 800s
±¸°£3 Áö¼Ó½Ã°£ = 50s
Q1= (0~t1±¸°£ ÀûºÐ)¡òq(t)dt = (0~t1±¸°£ ÀûºÐ)¡ò0.08 t^2 dt =0.08/3*(t1)^3 = 147322 kWs
Q2= (t1~t2±¸°£ ÀûºÐ)¡òq(t)dt = (t1~t2±¸°£ ÀûºÐ)¡ò2500 dt = 800*2500 = 2000000 kWs
Q3= (t2~t3±¸°£ ÀûºÐ)¡òq(t)dt = (t2~t3±¸°£ ÀûºÐ)¡ò(2500-50t) dt =2500*(50)-(50/2)*(50^2)=62500 kWs
Q=Q1+Q2+Q3 = 2,209,822 kWs = 613.8 kWh
Á¦´ë·Î °è»êÀÌ µÇ¾ú´ÂÁö °ËÅä¹Ù¶ø´Ï´Ù.
A5.5.... (0) ÈÀçÃʱâ, Áï ¹ßÈÃʱâ t=0ÀÏ ¶§ÀÇ ¹ß¿·® qo = 0 kW (1) ÈÀ缺Àå±â, Áï t=0 ~ t1 ±¸°£¿¡¼ÀÇ ¹ß¿·® q= 0-->q1ÀÌ µÉ ¶§±îÁöÀÇ ½Ã°£= t1 sec ¹ßÈÃʱ⿡¼ÀÇ ÈÀç ¼ºÀåÀ² =¹ß¿·® Áõ°¡¼Óµµ, ¥á1 = 0.08 kW/s^2 ÀÌ ±¸°£¿¡¼ÀÇ ¹ß¿·®, q(t) = qo + (0.08)*t^2 = 0.08*t^2 ------------(1) (2) ÈÀçÁö¼Ó±â, Áï t=t1 ~ t2±îÁö ±¸°£¿¡¼ÀÇ ¹ß¿·® ¹ßÈÁö¼Ó½Ã°£= 800 sec ÈÀçÁö¼Ó±â¿¡¼ÀÇ ¹ß¿·® Áõ°¡¼Óµµ =0 q(t) = 2500 kW ---------------(2) (3) ÈÀç¼èÅð±â(t2~t3±îÁö)¿¡¼ÀÇ ¹ß¿·® ¹ß¿·® °¨¼è¼Óµµ, ¥á1 = -50 t kW/s q(t) = 2500 - 50 t -------------(3) ¼èÅð½Ã°£ q=0ÀÌ µÉ¶§±îÁöÀÇ ½Ã°£ 50 s (4) °¢±¸°£¿¡¼ÀÇ ´©Àû ¹ß¿·® ±¸°£1 Áö¼Ó½Ã°£ = (2500/0.08)^1/2 = 176.78 s ±¸°£2 Áö¼Ó½Ã°£ = 800s ±¸°£3 Áö¼Ó½Ã°£ = 50s Q1= (0~t1±¸°£ ÀûºÐ)¡òq(t)dt = (0~t1±¸°£ ÀûºÐ)¡ò0.08 t^2 dt =0.08/3*(t1)^3 = 147322 kWs Q2= (t1~t2±¸°£ ÀûºÐ)¡òq(t)dt = (t1~t2±¸°£ ÀûºÐ)¡ò2500 dt = 800*2500 = 2000000 kWs Q3= (t2~t3±¸°£ ÀûºÐ)¡òq(t)dt = (t2~t3±¸°£ ÀûºÐ)¡ò(2500-50t) dt =2500*(50)-(50/2)*(50^2)=62500 kWs Q=Q1+Q2+Q3 = 2,209,822 kWs = 613.8 kWh Á¦´ë·Î °è»êÀÌ µÇ¾ú´ÂÁö °ËÅä¹Ù¶ø´Ï´Ù.
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rainmy12
12-05-25 14:17
¹ä Çѳ¢ »çµå¸®°í ½Í¼ü´Ï´Ù.. Á¤¸» °¨»çÇÕ´Ï´Ù Àúµµ ³²¿¡°Ô ¹èÇ®ÁÙ ¾Æ´Â ±×·± »ç¶÷ÀÌ µÇ°Ù´Ù°í ¸· »ý°¢ÀÌ µå³×¿ä óÀ½ ºËÁö¸¸ Á¸°æ½º·´½À´Ï´Ù
¹ä Çѳ¢ »çµå¸®°í ½Í¼ü´Ï´Ù.. Á¤¸» °¨»çÇÕ´Ï´Ù Àúµµ ³²¿¡°Ô ¹èÇ®ÁÙ ¾Æ´Â ±×·± »ç¶÷ÀÌ µÇ°Ù´Ù°í ¸· »ý°¢ÀÌ µå³×¿ä óÀ½ ºËÁö¸¸ Á¸°æ½º·´½À´Ï´Ù
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rainmy12
12-05-26 22:58
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Stefano
12-05-29 10:33
´Ù¸¥ ¹®Á¦¸¦ ¸ÕÀú °í¸¥ ´ÙÀ½ Á÷Á¢ Ç®¾îº¸°í ÀÌÇصÇÁö ¾Ê´Â ºÎºÐ ÁßÁ¡Áú¹®ÇØ ÁÖ¼¼¿ä.
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