Ziribe kanthu zomwe mukukonzekera: kugula mapepala a matabwa kapena kumanga matabwa a nkhuni, ndikofunika kuti mudziwe zomwe matabwa a matabwa ali abwino komanso oipa.Chifukwa cha chitukuko chamakampani, pali miyeso yopitilira 1 yamitengo yamsika pamsika.Wood pellet standardization ndi njira yokhazikika yolumikizirana yazogulitsa pamsika.Popeza kuti miyezo ya ku Austria (ÖNORM M1735) idasindikizidwa mu 1990, mamembala angapo a EU apanga miyezo yawoyawo ya pellets ya dziko, monga DINplus (Germany), NF (France), Pellet Gold (Italy), ndi zina zotero. padziko lapansi, European Commission yakhazikitsa miyezo ya EU (CEN TC335- EN 14961) yamafuta olimba, omwe amatengera miyezo ya ku Austrian (ÖNORM M1735).

Kutengera miyezo yonse yomwe ilipo yamatabwa amatabwa, timakupatsirani malangizo apamwamba kuti akuthandizeni kuzindikira matabwa apamwamba kwambiri.

Tafotokoza mwachidule zinthu zonse zofunika kuti muwone mwachangu momwe pellet yamatabwa ilili yabwino.Ingotsatirani izi:

Mitundu yodziwika bwino ya pellet yamatabwa ndi 6mm ndi 8mm.Nthawi zambiri, kukula kwake kumakhala kocheperako, kumapangitsa kuti ma pelletizing azigwira bwino ntchito.Koma ngati m'mimba mwake ndi pansi pa 5mm, mphamvu yogwiritsira ntchito mphamvu imawonjezeka ndipo mphamvu imachepa.Komanso, chifukwa cha mawonekedwe a pellets, voliyumu ya mankhwalawa imapanikizidwa, idasunga malo osungira.Komanso, ndi yosavuta kunyamula, choncho mtengo wa mayendedwe ndi wotsika.Pakati pa miyezo yonse yomwe ilipo, pali kuzindikira kodziwika bwino za zolakwika zapakati, zomwe siziposa 1mm.

Malinga ndi miyezo yonse ya pellets yamatabwa, chinyezi chofunikira chimakhala chofanana, osapitirira 10%.Mwachidziwitso, panthawiyi, madzi omwe ali ndi madzi ndi omwe amamangirira ndi mafuta.Ngati chinyezi chili chochepa kwambiri, ma pellets sangathe kukulitsidwa mokwanira, kotero kuti ma pellets akhoza kukhala osinthika, ndipo kachulukidwe kake kamakhala kochepa kusiyana ndi mapepala abwino.Koma ngati chinyezi chili chochuluka, mphamvu yogwiritsira ntchito mphamvu idzawonjezeka, ndipo voliyumu idzawonjezekanso, kawirikawiri, ma pellets adzakhala ndi malo ovuta, ndipo pazovuta kwambiri, zopangira zikhoza kuphulika kuchokera ku imfa ya mphero.Miyezo yonse ya pellets ikuwonetsa kuti chinyezi chabwino kwambiri cha pellets yamatabwa ndi 8%, ndipo chinyezi chabwino kwambiri chamafuta ambewu ndi 12%.Chinyezi cha pellet chikhoza kuyezedwa ndi mita ya chinyezi.

Kuchulukana kwa ma pellets amatabwa ndi chimodzi mwazinthu zofunika kwambiri, nthawi zambiri zimatha kugawidwa muzambiri komanso kachulukidwe ka pellets.Kuchulukana kwakukulu ndi katundu wa zipangizo za ufa, monga ma pellets, chilinganizo ndi kuchuluka kwa zipangizo za ufa zomwe zimagawidwa ndi voliyumu yomwe amafunikira.Kachulukidwe kachulukidwe kawo sikamakhudza kuyaka kokha komanso mtengo wamayendedwe ndi mtengo wosungira.

Kuphatikiza apo, kachulukidwe ka ma pellets amakhalanso ndi chikoka pakuchulukira kwake komanso kuyaka kwake, kuchuluka kwake komwe kumakhala nako, nthawi yoyaka italikirapo.

Kukhazikika kwamakina ndi gawo lofunikira.Panthawi yoyendetsa ndi kusungirako, ma pellets omwe ali ndi mphamvu zochepa zamakina amawonongeka mosavuta, adzawonjezera ufa.Mwa mitundu yonse ya ma pellets a biomass, ma pellets amatabwa amakhala olimba kwambiri, pafupifupi 97.8%.Poyerekeza ndi miyezo yonse ya biomass pellets, kulimba kwamakina sikuchepera 95%.

Kwa onse ogwiritsira ntchito mapeto, vuto lomwe likukhudzidwa kwambiri ndi mpweya, womwe uli ndi Nox, Sox, HCl, PCCD (polychlorinated dibenzo-p-dioxins) ndi phulusa louluka.Nayitrogeni ndi Sulfure zomwe zili mu pellets zinatsimikizira kuchuluka kwa Nox ndi Sox.Kuphatikiza apo, vuto la dzimbiri limatsimikiziridwa ndi kuchuluka kwa chlorine.Kuti pakhale kuyaka bwino, miyezo yonse ya pellets imalimbikitsa zinthu zochepa zamagulu.