| 按(an)電(dian)(dian)量(liang)(liang)表計(ji)算(suan);未單獨安(an)裝電(dian)(dian)量(liang)(liang)表時，可(ke)(ke)按(an)下(xia)列(lie)公(gong)(gong)式(shi)(shi)估算(suan)：耗(hao)電(dian)(dian)量(liang)(liang)=1.73*平均電(dian)(dian)壓(ya)(ya)(ya)(ya)*平均功率因數*開(kai)機(ji)小時/1000(kW·h)為了簡化計(ji)算(suan)，壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)耗(hao)電(dian)(dian)量(liang)(liang)可(ke)(ke)用(yong)下(xia)列(lie)公(gong)(gong)式(shi)(shi)計(ji)算(suan)： 壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)耗(hao)電(dian)(dian)量(liang)(liang)=壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)分(fen)配積數*功率分(fen)配系數(kW·h).制(zhi)冷設備壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)分(fen)配積數=壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)平均耗(hao)用(yong)電(dian)(dian)量(liang)(liang)*開(kai)機(ji)小(A·h) 功率分(fen)配系數=壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)總耗(hao)電(dian)(dian)量(liang)(liang)/各壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)分(fen)配積數合計(ji)數(kW/A)。
冷(leng)庫(ku)制冷(leng)設備生產(chan)冷(leng)量必須(xu)耗(hao)電(dian)(dian)，電(dian)(dian)力是冷(leng)庫(ku)成本的(de)主(zhu)要(yao)部分。節(jie)約用電(dian)(dian)。既降低(di)了(le)(le)生產(chan)成本，有(you)提高(gao)了(le)(le)經濟(ji)效益，對改善經濟(ji)管理(li),提高(gao)冷(leng)藏企業(ye)的(de)管理(li)水平有(you)很重要(yao)的(de)意義(yi)。
單位產(chan)品耗電(dian)(dian)(dian)(dian)量是將冷(leng)庫內(nei)制(zhi)冷(leng)用電(dian)(dian)(dian)(dian)和(he)(he)冷(leng)庫風(feng)機(ji)有電(dian)(dian)(dian)(dian)分配(pei)于各種冷(leng)凍(dong)品和(he)(he)冷(leng)藏(zang)品中(zhong)，其中(zhong).制(zhi)冷(leng)設備用電(dian)(dian)(dian)(dian)包括壓縮機(ji)和(he)(he)其他用電(dian)(dian)(dian)(dian)(如氨(an)泵. 水泵用電(dian)(dian)(dian)(dian)等(deng))，凍(dong)結間風(feng)機(ji)耗電(dian)(dian)(dian)(dian)由冷(leng)凍(dong)品負(fu)擔，冷(leng)卻物冷(leng)藏(zang)間風(feng)機(ji)耗電(dian)(dian)(dian)(dian)由冷(leng)卻冷(leng)產(chan)品負(fu)擔。雅俗家耗電(dian)(dian)(dian)(dian)按單位冷(leng)量耗電(dian)(dian)(dian)(dian)計(ji)算，其他用電(dian)(dian)(dian)(dian)也可按冷(leng)間耗電(dian)(dian)(dian)(dian)量比列進(jin)行分配(pei)。
制冷設(she)備運(yun)行時(shi)間的計算
為使(shi)室(shi)溫維持(chi)或降(jiang)級到(dao)一定的(de)溫度(du)，制(zhi)(zhi)冷設(she)備必須運行(xing)的(de)時(shi)(shi)(shi)間(jian)(jian)稱(cheng)為運行(xing)時(shi)(shi)(shi)間(jian)(jian)。用于(yu)計算的(de)時(shi)(shi)(shi)間(jian)(jian)為24h，設(she)備容(rong)量(liang)以(yi)每(mei)小時(shi)(shi)(shi)的(de)Btu(Btu是能(neng)量(liang)的(de)單位(wei)(wei)名稱(cheng)：1英熱單位(wei)(wei)=1Btu=0.252千(qian)卡(ka)=1054.85焦耳)標定，因此，24h乘以(yi)Btu/h就得(de)到(dao)制(zhi)(zhi)冷設(she)備的(de)一般(ban)容(rong)量(liang)。(但大部分設(she)備基(ji)本上根本不需要(yao)運行(xing)24h，融霜(shuang)相(xiang)對也需消耗一些時(shi)(shi)(shi)間(jian)(jian)和能(neng)源(yuan)，但是相(xiang)對較少，所以(yi)要(yao)將24h內總的(de)負(fu)荷除以(yi)需要(yao)運行(xing)時(shi)(shi)(shi)間(jian)(jian))使(shi)用下列公式能(neng)較快地(di)確(que)定制(zhi)(zhi)冷設(she)備容(rong)量(liang)：需要(yao)的(de)設(she)備容(rong)量(liang)：Btu/h=在24h總的(de)冷負(fu)荷/需要(yao)的(de)運行(xing)時(shi)(shi)(shi)間(jian)(jian)
壓縮機耗電(dian)量的(de)計算(suan)
壓(ya)(ya)縮機(ji)單獨(du)安(an)裝(zhuang)電(dian)量(liang)(liang)(liang)(liang)表時，按電(dian)量(liang)(liang)(liang)(liang)表計(ji)算;未單獨(du)安(an)裝(zhuang)電(dian)量(liang)(liang)(liang)(liang)表時，可(ke)按下(xia)列(lie)公式估(gu)算：耗(hao)(hao)(hao)電(dian)量(liang)(liang)(liang)(liang)=1.73*平(ping)均(jun)(jun)電(dian)壓(ya)(ya)*平(ping)均(jun)(jun)功率(lv)因數(shu)(shu)(shu)*開機(ji)小(xiao)(xiao)時/1000(kW·h)為了(le)簡化(hua)計(ji)算，壓(ya)(ya)縮機(ji)耗(hao)(hao)(hao)電(dian)量(liang)(liang)(liang)(liang)可(ke)用(yong)(yong)下(xia)列(lie)公式計(ji)算： 壓(ya)(ya)縮機(ji)耗(hao)(hao)(hao)電(dian)量(liang)(liang)(liang)(liang)=壓(ya)(ya)縮機(ji)分配(pei)(pei)(pei)積(ji)數(shu)(shu)(shu)*功率(lv)分配(pei)(pei)(pei)系數(shu)(shu)(shu)(kW·h).制(zhi)冷設備壓(ya)(ya)縮機(ji)分配(pei)(pei)(pei)積(ji)數(shu)(shu)(shu)=壓(ya)(ya)縮機(ji)平(ping)均(jun)(jun)耗(hao)(hao)(hao)用(yong)(yong)電(dian)量(liang)(liang)(liang)(liang)*開機(ji)小(xiao)(xiao)(A·h) 功率(lv)分配(pei)(pei)(pei)系數(shu)(shu)(shu)=壓(ya)(ya)縮機(ji)總耗(hao)(hao)(hao)電(dian)量(liang)(liang)(liang)(liang)/各壓(ya)(ya)縮機(ji)分配(pei)(pei)(pei)積(ji)數(shu)(shu)(shu)合計(ji)數(shu)(shu)(shu)(kW/A)。 |
