ÌâÄ¿ÄÚÈÝ
ÓÐÒ»ÖÖµçÄܸ¨Öúʽ̫ÑôÄÜÈÈË®Æ÷£¬½«Ëü°²×°ÔÚÑô¹â³ä×ãµÄˮƽ̨ÃæÉÏ£¬²¢×¢ÂúË®£®ÇçÌìʱËü½ÓÊÕÌ«ÑôÄܵÄÕæ¿Õ¶ÆĤ¹ÜµÄ×ÜÓÐЧÃæ»ýԼΪ1.5m2£¬ÒõÓêÌìʱÓõç¼ÓÈÈ£®ÃúÅÆÉϵIJ¿·Ö²ÎÊýÈç±íËùʾ£®
ÐÍ¡¡¡¡¡¡ ºÅ | JLD-88 |
Ë® ÈÝ Á¿/L | 100 |
µçÈȹܹ¦ÂÊ | 2000W |
×ÔÉíÖÊÁ¿/kg | 40 |
£¨2£©º¼ÖݵØÇø£¨ÇçÌ죩ƽ¾ùÿƽ·½Ã×µÄÃæ»ýÉÏ£¬Ã¿Ð¡Ê±½ÓÊÕµÄÌ«ÑôÄÜԼΪ2.8¡Á106J£® ÈôÿÌìÈÕÕÕʱ¼ä°´10h¼ÆË㣬ÔòËüÒ»ÌìÖнÓÊÕµÄÌ«ÑôÄÜ£¨E£©Ô¼Îª¶àÉÙ£¿ÈôÕâЩ̫ÑôÄÜÓÐ50%±»ÈÈË®Æ÷ÖеÄË®ÎüÊÕ£¬Ôò¿ÉʹˮÎÂÉý¸ß¶àÉÙ£¿
£¨3£©ÒõÓêÌìʱÐèÓõç¼ÓÈÈ£¬Èç¹ûËùÏûºÄµÄµçÄÜÈ«²¿×ª»¯ÎªË®µÄÄÚÄÜ£¬ÈÈË®Æ÷ÔڶµçѹϹ¤×÷ʱ£¬½«ÉÏÊöͬÑùÖÊÁ¿¡¢³õεÄË®Éý¸ßͬÑùµÄζÈÐè¶à³¤Ê±¼ä£¿
£¨4£©´ÓÄÜÔ´ºÍ¿É³ÖÐø·¢Õ¹µÄ½Ç¶È£¬Ëµ³öÌᳫ¿ª·¢ÀûÓÃÌ«ÑôÄܵÄÖ÷ÒªÀíÓÉÊÇ______£¨ÒªÇóд³öÁ½µã£©£®[¦ÑË®=1.0¡Á103kg/m3£¬cË®=4.2¡Á103J/£¨kg?¡æ£©]£®
½â£º£¨1£©¡ß¦Ñ=
£¬
¡àË®µÄÖÊÁ¿m=¦ÑV=1¡Á103kg/m3¡Á0.1m3¨T100kg£»
£¨2£©Ò»Ìì»ñµÃµÄÌ«ÑôÄÜE=2.8¡Á106J/£¨h?m2£©¡Á10h¡Á1.5m2=4.2¡Á107J£¬
Ë®ÎüÊÕµÄÈÈÁ¿Q=¦ÇE=4.2¡Á107J¡Á50%=2.1¡Á107J£¬
¡ßQ=cm¡÷t£¬
¡àË®Éý¸ßµÄζȡ÷t=
=
=50¡æ£»
£¨3£©µçÁ÷Ëù×öµÄ¹¦W=Q=2.1¡Á107J£¬
¡ßP=
£¬
¡à¼ÓÈÈʱ¼ät=
=
=1.05¡Á104s£»
£¨4£©Ì«ÑôÄÜÊÇ¿ÉÔÙÉúÄÜÔ´¡¢Ì«ÑôÄÜÊÇÇå½àÄÜÔ´£¬²»»áÔì³É»·¾³ÎÛȾ£¬Ê¹ÓÃÌ«ÑôÄܿɽÚÔ¼´«Í³ÄÜÔ´£®
´ð£º£¨1£©Ë®µÄÖÊÁ¿Îª100kg£®
£¨2£©Ò»ÌìÖнÓÊÕµÄÌ«ÑôÄÜԼΪ4.2¡Á107J£»ÈôÕâЩ̫ÑôÄÜÓÐ50%±»ÈÈË®Æ÷ÖеÄË®ÎüÊÕ£¬Ôò¿ÉʹˮÎÂÉý¸ß50¡æ£®
£¨3£©½«ÉÏÊöͬÑùÖÊÁ¿¡¢³õεÄË®Éý¸ßͬÑùµÄζÈÐè1.05¡Á104s£®
£¨4£©½ÚÄÜ¡¢»·±££¬ÎÞÎÛȾ£®
·ÖÎö£º£¨1£©ÒÑÖªÈÝ»ýÓëË®µÄÃܶȣ¬ÓÉÃܶȹ«Ê½µÄ±äÐι«Ê½¿ÉÒÔÇó³öË®µÄÖÊÁ¿£®
£¨2£©ÒÑÖªÃæ»ýÓ뵥λÃæ»ýÉÏ»ñµÃµÄÌ«ÑôÄÜ¡¢¹âÕÕʱ¼ä£¬¿ÉÒÔÇó³öÒ»Ìì½ÓÊܵÄÌ«ÑôÄÜ£¬ÓÉÈÈÁ¿¹«Ê½µÄ±äÐι«Ê½¿ÉÒÔÇó³öË®Éý¸ßµÄζȣ®
£¨3£©ÒÑÖªµçÁ÷×öµÄ¹¦ÓëµçÈȹܵŦÂÊ£¬Óɵ繦ÂʵıäÐι«Ê½¿ÉÒÔÇó³ö¼ÓÈÈʱ¼ä£®
£¨4£©Ì«ÑôÄÜ»·±£¡¢½ÚÄÜ¡¢ÎÞÎÛȾ£®
µãÆÀ£º±¾Ì⿼²éÁËÇóË®µÄÖÊÁ¿¡¢½ÓÊܵÄÌ«ÑôÄÜ¡¢Ë®µÄζȱ仯¡¢µç¼ÓÈȵÄʱ¼ä¡¢ÀûÓÃÌ«ÑôÄܵÄÓŵãµÈ£¬±¾ÌâÄѶȲ»´ó£¬´ÓÌâÖлñÈ¡ËùÐèÐÅÏ¢¡¢Ó¦Óûù´¡ÖªÊ¶¼´¿ÉÕýÈ·½âÌ⣮

¡àË®µÄÖÊÁ¿m=¦ÑV=1¡Á103kg/m3¡Á0.1m3¨T100kg£»
£¨2£©Ò»Ìì»ñµÃµÄÌ«ÑôÄÜE=2.8¡Á106J/£¨h?m2£©¡Á10h¡Á1.5m2=4.2¡Á107J£¬
Ë®ÎüÊÕµÄÈÈÁ¿Q=¦ÇE=4.2¡Á107J¡Á50%=2.1¡Á107J£¬
¡ßQ=cm¡÷t£¬
¡àË®Éý¸ßµÄζȡ÷t=


£¨3£©µçÁ÷Ëù×öµÄ¹¦W=Q=2.1¡Á107J£¬
¡ßP=

¡à¼ÓÈÈʱ¼ät=


£¨4£©Ì«ÑôÄÜÊÇ¿ÉÔÙÉúÄÜÔ´¡¢Ì«ÑôÄÜÊÇÇå½àÄÜÔ´£¬²»»áÔì³É»·¾³ÎÛȾ£¬Ê¹ÓÃÌ«ÑôÄܿɽÚÔ¼´«Í³ÄÜÔ´£®
´ð£º£¨1£©Ë®µÄÖÊÁ¿Îª100kg£®
£¨2£©Ò»ÌìÖнÓÊÕµÄÌ«ÑôÄÜԼΪ4.2¡Á107J£»ÈôÕâЩ̫ÑôÄÜÓÐ50%±»ÈÈË®Æ÷ÖеÄË®ÎüÊÕ£¬Ôò¿ÉʹˮÎÂÉý¸ß50¡æ£®
£¨3£©½«ÉÏÊöͬÑùÖÊÁ¿¡¢³õεÄË®Éý¸ßͬÑùµÄζÈÐè1.05¡Á104s£®
£¨4£©½ÚÄÜ¡¢»·±££¬ÎÞÎÛȾ£®
·ÖÎö£º£¨1£©ÒÑÖªÈÝ»ýÓëË®µÄÃܶȣ¬ÓÉÃܶȹ«Ê½µÄ±äÐι«Ê½¿ÉÒÔÇó³öË®µÄÖÊÁ¿£®
£¨2£©ÒÑÖªÃæ»ýÓ뵥λÃæ»ýÉÏ»ñµÃµÄÌ«ÑôÄÜ¡¢¹âÕÕʱ¼ä£¬¿ÉÒÔÇó³öÒ»Ìì½ÓÊܵÄÌ«ÑôÄÜ£¬ÓÉÈÈÁ¿¹«Ê½µÄ±äÐι«Ê½¿ÉÒÔÇó³öË®Éý¸ßµÄζȣ®
£¨3£©ÒÑÖªµçÁ÷×öµÄ¹¦ÓëµçÈȹܵŦÂÊ£¬Óɵ繦ÂʵıäÐι«Ê½¿ÉÒÔÇó³ö¼ÓÈÈʱ¼ä£®
£¨4£©Ì«ÑôÄÜ»·±£¡¢½ÚÄÜ¡¢ÎÞÎÛȾ£®
µãÆÀ£º±¾Ì⿼²éÁËÇóË®µÄÖÊÁ¿¡¢½ÓÊܵÄÌ«ÑôÄÜ¡¢Ë®µÄζȱ仯¡¢µç¼ÓÈȵÄʱ¼ä¡¢ÀûÓÃÌ«ÑôÄܵÄÓŵãµÈ£¬±¾ÌâÄѶȲ»´ó£¬´ÓÌâÖлñÈ¡ËùÐèÐÅÏ¢¡¢Ó¦Óûù´¡ÖªÊ¶¼´¿ÉÕýÈ·½âÌ⣮

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ÓÐÒ»ÖÖµçÄܸ¨Öúʽ̫ÑôÄÜÈÈË®Æ÷£¬½«Ëü°²×°ÔÚÑô¹â³ä×ãµÄˮƽ̨ÃæÉÏ£¬²¢×¢ÂúË®£®ÇçÌìʱËü½ÓÊÕÌ«ÑôÄܵÄÕæ¿Õ¶ÆĤ¹ÜµÄ×ÜÓÐЧÃæ»ýԼΪ1.5m2£¬ÒõÓêÌìʱÓõç¼ÓÈÈ£®ÃúÅÆÉϵIJ¿·Ö²ÎÊýÈç±íËùʾ£®
£¨1£©ÈÈË®Æ÷Ë®ÏäÖÐ×¢Âúˮʱ£¬Ë®µÄÖÊÁ¿Îª¶àÉÙ£¿
£¨2£©º¼ÖݵØÇø£¨ÇçÌ죩ƽ¾ùÿƽ·½Ã×µÄÃæ»ýÉÏ£¬Ã¿Ð¡Ê±½ÓÊÕµÄÌ«ÑôÄÜԼΪ2.8×106J£® ÈôÿÌìÈÕÕÕʱ¼ä°´10h¼ÆË㣬ÔòËüÒ»ÌìÖнÓÊÕµÄÌ«ÑôÄÜ£¨E£©Ô¼Îª¶àÉÙ£¿ÈôÕâЩ̫ÑôÄÜÓÐ50%±»ÈÈË®Æ÷ÖеÄË®ÎüÊÕ£¬Ôò¿ÉʹˮÎÂÉý¸ß¶àÉÙ£¿
£¨3£©ÒõÓêÌìʱÐèÓõç¼ÓÈÈ£¬Èç¹ûËùÏûºÄµÄµçÄÜÈ«²¿×ª»¯ÎªË®µÄÄÚÄÜ£¬ÈÈË®Æ÷ÔڶµçѹϹ¤×÷ʱ£¬½«ÉÏÊöͬÑùÖÊÁ¿¡¢³õεÄË®Éý¸ßͬÑùµÄζÈÐè¶à³¤Ê±¼ä£¿
£¨4£©´ÓÄÜÔ´ºÍ¿É³ÖÐø·¢Õ¹µÄ½Ç¶È£¬Ëµ³öÌᳫ¿ª·¢ÀûÓÃÌ«ÑôÄܵÄÖ÷ÒªÀíÓÉÊÇ £¨ÒªÇóд³öÁ½µã£©£®[¦ÑË®=1.0×103kg/m3£¬cË®=4.2×103J/]£®
ÐÍ ºÅ | JLD-88 |
Ë® ÈÝ Á¿/L | 100 |
µçÈȹܹ¦ÂÊ | 2000W |
×ÔÉíÖÊÁ¿/kg | 40 |
£¨2£©º¼ÖݵØÇø£¨ÇçÌ죩ƽ¾ùÿƽ·½Ã×µÄÃæ»ýÉÏ£¬Ã¿Ð¡Ê±½ÓÊÕµÄÌ«ÑôÄÜԼΪ2.8×106J£® ÈôÿÌìÈÕÕÕʱ¼ä°´10h¼ÆË㣬ÔòËüÒ»ÌìÖнÓÊÕµÄÌ«ÑôÄÜ£¨E£©Ô¼Îª¶àÉÙ£¿ÈôÕâЩ̫ÑôÄÜÓÐ50%±»ÈÈË®Æ÷ÖеÄË®ÎüÊÕ£¬Ôò¿ÉʹˮÎÂÉý¸ß¶àÉÙ£¿
£¨3£©ÒõÓêÌìʱÐèÓõç¼ÓÈÈ£¬Èç¹ûËùÏûºÄµÄµçÄÜÈ«²¿×ª»¯ÎªË®µÄÄÚÄÜ£¬ÈÈË®Æ÷ÔڶµçѹϹ¤×÷ʱ£¬½«ÉÏÊöͬÑùÖÊÁ¿¡¢³õεÄË®Éý¸ßͬÑùµÄζÈÐè¶à³¤Ê±¼ä£¿
£¨4£©´ÓÄÜÔ´ºÍ¿É³ÖÐø·¢Õ¹µÄ½Ç¶È£¬Ëµ³öÌᳫ¿ª·¢ÀûÓÃÌ«ÑôÄܵÄÖ÷ÒªÀíÓÉÊÇ £¨ÒªÇóд³öÁ½µã£©£®[¦ÑË®=1.0×103kg/m3£¬cË®=4.2×103J/]£®