mAh vs Wh
Nyob rau hauv lub ntiaj teb niaj hnub no txhais tes tuav lossis nqa khoom siv tau nrov heev thiab ntau. Cov khoom siv no yog siv los ntawm cov roj teeb thiab kos me ntsis tam sim no thiab tsim los siv lub zog tsawg. Thaum cov kev ntsuas ntawm cov roj teeb no raug txiav txim siab, qhov tseem ceeb yog qhov me me thiab yog li cov chav me me yuav tsum tau qhia lawv. Lub mAh thiab Wh yog ob chav xws li.
milli Ampere teev (mAh) yog dab tsi?
Ampere teev yog ib chav ntawm hluav taws xob. Milli Ampere teev yog ib txhiab ntawm ib teev Ampere. Ampere teev hais tias yog tias lub tshuab hluav taws xob siv 1 Ampere ntawm tam sim no dhau ib teev (tsis cuam tshuam) tus nqi dhau los yog 3600 Coulombs. Yog li ntawd, ib milli-Ampere teev yog 3.6 Coulombs.
Lub ntsiab lus ntawm tam sim no nws tus kheej yog lub ntsiab lus tseem ceeb hauv chav tsev no.
Current (I)=(them nqi) / sijhawm=ΔQ / Δt
Nws tuaj yeem hloov kho raws li ΔQ=I × Δt. Li no cov khoom ntawm lub sij hawm thiab tam sim no muab tus nqi dhau nyob rau hauv lub sij hawm ntev Δt.
Chav tsev milli Ampere teev feem ntau yog siv los ntsuas cov tshuab electrochemical. Hauv cov roj teeb hluav taws xob, xws li cov khoom siv hauv laptops thiab cov xov tooj ntawm tes, mAh tau hais..
Wh (Wh) yog dab tsi?
Watt teev yog ntsuas lub zog. Watt teev yog tus nqi ntawm lub zog siv los yog tsim los ntawm cov khoom siv hluav taws xob yog tias nws ua haujlwm tsis cuam tshuam nrog lub zog ntawm 1 watt rau ib lub sijhawm ntawm ib teev. Nws yog sib npaug rau 3600 joules. Feem ntau watt teev me me los qhia txog kev siv hluav taws xob / tiam ntawm lub tshuab hluav taws xob; Yog li ntawd, cov kev txiav txim siab dua tau siv nyob rau hauv cov tshuab no. Lub zog nyob rau hauv lub hwj chim mains yeej ib txwm suav siv cov units. Cov chaw nres tsheb fais fab feem ntau muab rau hauv megawatt teev (MWh) thaum hluav taws xob hauv tsev raug kaw hauv kilowatt teev (kWh). [1kWh=1000Wh=3.6 MJ (mega joules) and 1 MWh=1000000 Wh=3.6 GJ (Giga joules)
Lub ntsiab txhais ntawm lub hwj chim yog lub ntsiab lus tseem ceeb hauv kev txhais lub chav tsev no.
Power (P)=(Energy Siv)/time=ΔE/Δt
Cov lus qhia saum toj no tuaj yeem hloov kho raws li ΔE=P × Δt. Nws implicates tias cov khoom ntawm lub hwj chim thiab lub sij hawm muab lub zog noj los yog generated thaum lub sij hawm ncua sij hawm Δt.
Cov khoom siv zoo li cov roj teeb muab lub zog qis thiab yog li watt teev (Wh) yog siv los ua ib chav nyob hauv cov roj teeb.
Qhov txawv ntawm mAh thiab Wh yog dab tsi?
• mAh (milli Ampere teev) yog ib chav tsev ntawm lub peev xwm los yog khaws cia thaum Wh (Watt teev) yog ib chav tsev ntawm lub zog thiab cia.
• Ob leeg yog cov ntsuas me me thiab siv cov roj teeb ntau zaus.
