Cua compressor efficiency
Mar 18, 2020
Volumetric efficiency yog qhov piv ntawm qhov tseeb huab cua ntim ntawm lub compressor rau theoretical cua ntim, qhia raws li ib feem.
1.Compression efficiency yog qhov sib piv ntawm lub zog tiag tiag uas yuav tsum tau ua kom cov pa roj rau lub zog theoretical. Lub zog theoretical tuaj yeem xam raws li kev ua haujlwm isothermal lossis adiabatic ua haujlwm. Qhov sib thooj compression efficiency tuaj yeem txiav txim siab thiab qhia raws li feem pua. Rau cov compressors uas tau tsav los ntawm chav lossis lub tshuab hluav taws xob sab hauv, kev siv tshuab ua haujlwm yog hais txog qhov piv ntawm qhov qhia ua haujlwm horsepower ntawm lub compressor rau lub braking horsepower ntawm lub ncej. Nyob rau hauv cov ntaub ntawv ntawm lub cev muaj zog-tsav compressors, mechanical efficiency yog hais txog qhov piv ntawm lub zog qhia nyob rau hauv lub compression lub tog raj kheej rau lub zog ncej ntawm lub compressor. Qhia raws li feem pua.
2. Tag nrho cov efficiency
Tag nrho cov efficiency yog cov sum ntawm compression efficiency thiab txhua yam efficiency ntawm cov cua compressor. Compressor ncej fais fab (lub zog nres) suav nrog: kev ua haujlwm roj compression- qhia txog kev ua haujlwm, kev sib txhuam ua haujlwm Ni
Mechanical efficiency ηm=--------
Nad
Rough xam: Nad=1.634PjVm (k / k-1) [ε (k-1 / k) -1] Kw
N motor=N axis / η kis tau tus mob, η kis (siv: 0.92 - 0.98, iav: 0.97 - 0.99)
