最新供熱計算公式

1、熱網(wǎng)供熱計算公式供熱量=供水溫度回水溫度X熱網(wǎng)循環(huán)水流量1大卡千卡kcal=4 17kJ1 大卡 kcal=1 163w某臺機組熱網(wǎng)循環(huán)水量 4000t/h,供水溫度85°C、回水溫度55°C, 計算該機組每小時供熱量。供熱量=85-55X 4000/1000=120百萬大卡120X4.17=500.4 百萬千焦=500.4 吉焦GJ120X 1.163=13956X 104 瓦W =139.56 兆瓦M(jìn)W 千瓦時兆瓦時百萬大卡噸蒸汽焰吉焦MKcalGJKW. hMW.hTiGcal1吉焦百萬千焦12780. 2780. 240.41千瓦時0. 003610. 0010.

2、000860. 001431兆瓦時3.6100010. 861.431百萬大卡4. 18711631. 16311.6671噸飽和蒸汽焙2.57000. 70.61初中英語語法歸納復(fù)習(xí)：被動語態(tài)重難點：掌握八種常見時態(tài)的被動語態(tài)，并能根據(jù)不同情景，靈活運用被動語【知識總結(jié)歸納】概念：表示動作與主語之間是被動關(guān)系的句子是被動語態(tài)二.主動語態(tài)與被動語態(tài)之間如何轉(zhuǎn)換We Visited that factory last summer -> 主動語態(tài)狀語That factorywas visitedby us last summer t 被動語態(tài)主語謂語賓語狀語三.各種不同時態(tài)的主動語態(tài)與被動

3、語態(tài)的比照時態(tài)主動語態(tài)被動語態(tài)般現(xiàn)在時(1 ) Do they speak French ?Is French spoken by them ?The room isn't used by themam / is / are + P ? P?(2 ) They don't use the room ?J?般過去時was / were + p.p.(1) The hunter killed a tige ?(2 )He wrote many stories last year ?A tiger was killed by the hunter.Many stories was w

4、ritten by him last yea ?現(xiàn)在進(jìn)行時am / is / are +being +p.p.(1) These workers are building a new bridge ?(2 )He is men ding his car ?A new bridge is being built by these workers ?His car is being mended by him?過去進(jìn)行時(1 )He was selling books ?Books were being built by him ?was / were + being + p.p.(2 ) They were discussing the plan at that time ?The plan was being discussed by them at that time .現(xiàn)