Nakuba amazinga e-PFI kanye ne-ISO ebonakala efana kakhulu ngezindlela eziningi, kubalulekile ukuqaphela umehluko ocashile ovame ukucashile ezincazelweni nezindlela zokuhlola ezikhonjiwe, njengoba i-PFI ne-ISO ingaqhathanisi ngaso sonke isikhathi.

Muva nje, ngicelwe ukuthi ngiqhathanise izindlela nezicaciso ezibalulwe kumazinga e-PFI nezinga elibonakala lifana le-ISO 17225-2.

Khumbula ukuthi amazinga e-PFI athuthukiswa embonini ye-pellet yezinkuni yaseNyakatho Melika, kuyilapho ezimweni eziningi, amazinga e-ISO asanda kushicilelwa afana kakhulu nezindinganiso ze-EN zangaphambili, ezazibhalelwe izimakethe zaseYurophu. I-ENplus ne-CANplus manje ibhekisela ekucacisweni kwekhwalithi yamakilasi A1, A2 kanye no-B, njengoba kuvezwe ku-ISO 17225-2, kodwa abakhiqizi ikakhulukazi benza “ibanga le-A1.”

Futhi, ngenkathi amazinga e-PFI ehlinzeka ngemibandela yeprimiyamu, amamaki ajwayelekile nawusizo, iningi labakhiqizi benza ibanga le-premium. Lo msebenzi uqhathanisa izimfuneko zebanga leprimiyamu le-PFI nebanga le-ISO 17225-2 A1.

Ukucaciswa kwe-PFI kuvumela ububanzi bokuminyana ngobuningi obungamaphawundi angama-40 kuye kwangama-48 ngecubic foot ngayinye, kuyilapho i-ISO 17225-2 ibhekisela kububanzi obungu-600 kuya ku-750 kilograms (kg) nge-cubic meter ngayinye. (37.5 kuya ku-46.8 amakhilogremu i-cubic foot ngayinye). Izindlela zokuhlola zihlukile ngoba zisebenzisa iziqukathi ezinosayizi ohlukene, izindlela ezihlukene zokuhlanganisa nobude obuhlukene bokuthulula. Ngokungeziwe kulo mehluko, zombili izindlela ngokwemvelo zinezinga elikhulu lokuhlukahluka ngenxa yokuhlolwa kuncike endleleni ngayinye. Naphezu kwawo wonke lo mehluko kanye nokuhlukahluka okungokwemvelo, lezi zindlela ezimbili zibonakala zikhiqiza imiphumela efanayo.

Ibanga lobubanzi be-PFI lingamayintshi angu-0.230 kuya ku-0.285 (5.84 kuya ku-7.24 millimeters (mm). Lokhu kungokuqonda ukuthi abakhiqizi base-US basebenzisa kakhulu ukufa kwekota yeyintshi kanye nosayizi wokufa abakhudlwana kancane. I-ISO 17225-2 idinga ukuthi abakhiqizi basho 6 noma 8 mm, ngayinye inokubekezelela plus noma ukususa 1 mm, okuvumela ububanzi obungaba khona obungu-5 kuya ku-9 mm (0.197 amayintshi angu-0.354 uma kubhekwa ukuthi ububanzi obuyi-6 mm bufana kakhulu nosayizi wokufa wekota eyodwa (6.35 mm), kulindeleke ukuthi abakhiqizi bamemezele u-6 mm umkhiqizo wobubanzi obungu-8 mm ungathinta ukusebenza kwesitofu Zombili izindlela zokuhlola zisebenzisa ama-caliper ukukala ububanzi lapho kubikwa khona inani lesilinganiso.

Ukuze iqine, indlela ye-PFI ilandela indlela ye-tumbler, lapho ubukhulu begumbi bungama-intshi angu-12 ngo-12 amayintshi ngo-5.5 amayintshi (305 mm ngo-305 mm ngo-140 mm). Indlela ye-ISO isebenzisa ishubhu elifanayo elincanyana nje (300 mm by 300 mm by 120 mm). Angikatholi umehluko kubukhulu bebhokisi ukuze kubangele umehluko omkhulu emiphumeleni yokuhlolwa, kodwa ngokombono, ibhokisi elikhudlwana lingaphakamisa ukuhlolwa okunolaka okuthe xaxa kwendlela ye-PFI.

I-PFI ichaza izinhlawulo njengento edlula esikrinini se-wire mesh esiyintshi eyodwa-yisishiyagalombili (imbobo yesikwele engu-3.175-mm). Ku-ISO 17225-2, izinhlawulo zichazwa njengento edlula isikrini esiyimbobo esiyindilinga esingu-3.15-mm. Noma ubukhulu besikrini obungu-3.175 no-3.15 bubonakala bufana, ngenxa yokuthi isikrini se-PFI sinezimbobo eziyisikwele futhi isikrini se-ISO sinezimbobo eziyindilinga, umehluko ngosayizi wokuvula cishe amaphesenti angama-30. Kanjalo, ukuhlolwa kwe-PFI kuhlukanisa ingxenye enkulu yezinto njengezinhlawulo ezenza kube nzima ukuphumelela ukuhlolwa kwezinhlawulo ze-PFI, naphezu kokuba nemfuneko yenhlawulo efanayo ye-ISO (zombili zibhekisela kumkhawulo wenhlawulo wamaphesenti angu-0.5 wempahla efakwe izikhwama). Ngaphezu kwalokho, lokhu kubangela umphumela wokuhlola ukuqina ukuthi ube ngaphansi ngo-0.7 uma uhlolwa ngendlela ye-PFI.

Ngokuqukethwe komlotha, kokubili i-PFI ne-ISO zisebenzisa izinga lokushisa elicishe lifane ngomlotha, 580 kuya ku-600 degrees Celsius ku-PFI, kanye no-550 C ku-ISO. Angikawuboni umehluko omkhulu phakathi kwalawa mazinga okushisa, futhi ngicabangela lezi zindlela ezimbili ukuze ngilethe imiphumela efanayo. Umkhawulo we-PFI womlotha ungamaphesenti angu-1, kanti umkhawulo we-ISO 17225-2 womlotha ungamaphesenti angu-0.7.

Mayelana nobude, i-PFI ayivumeli ngaphezu kwephesenti elingu-1 ukuba libe lide kunamayintshi angu-1.5 (38.1 mm), kuyilapho i-ISO ingavumeli ngaphezu kwephesenti elingu-1 ukuba libe lide kuno-40 mm (1.57 amayintshi) futhi awekho amapellets amade kuno-45 mm. Uma kuqhathaniswa u-38.1 mm 40 mm, ukuhlolwa kwe-PFI kunamandla kakhulu, nokho, ukucaciswa kwe-ISO kokuthi akukho pellet engaba yinde kuno-45 mm kungenza ukucaciswa kwe-ISO kuqine kakhulu. Ngendlela yokuhlola, ukuhlolwa kwe-PFI kucophelela kakhulu, ngokuthi ukuhlolwa kwenziwa kusayizi omncane wesampula wamaphawundi angu-2.5 (1,134 amagremu) kuyilapho ukuhlolwa kwe-ISO kwenziwa ngamagremu angu-30 kuya kwangu-40.

I-PFI ne-ISO zisebenzisa izindlela zekhalorimitha ukuze zinqume inani lokushisisa, futhi kokubili ukuhlola okukhonjiwe kuveza imiphumela eqhathanisekayo ngokuqondile ethuluzini. Ku-ISO 17225-2, nokho, umkhawulo oshiwo wokuqukethwe kwamandla uvezwa njengengqikithi yenani le-calorific, elibuye libizwe njengevelu yokushisisa ephansi. Ku-PFI, inani lokushisisa livezwa njengevelu ye-calorific iyonke, noma inani eliphakeme lokushisisa (HHV). Le mingcele ayinakuqhathaniswa ngokuqondile. I-ISO ihlinzeka ngomkhawulo wokuthi ama-pellets e-A1 adinga ukuba mkhulu noma alingane no-4.6 kilowatt-ihora nge-kg (okulingana no-7119 Btu ngephawundi). Izinga le-PFI lidinga ukuthi umkhiqizi adalule ubuncane be-HHV njengoba bebuyitholile.

Indlela ye-ISO yereferensi ye-chlorine i-ion chromatography njengendlela eyinhloko, kodwa inolimi lokuvumela amasu ambalwa okuhlaziya aqondile. I-PFI ibala izindlela ezimbalwa ezamukelekayo. Zonke ziyahlukahluka emikhawulweni yazo yokuthola kanye nezinsimbi ezidingekayo. Umkhawulo we-PFI we-chlorine ungama-300 milligrams (mg), ikhilogremu ngayinye (kg) futhi imfuneko ye-ISO ngu-200 mg ngekhilogremu.

I-PFI okwamanje ayinazo izinsimbi ezisohlwini olusezingeni layo, futhi ayikho indlela yokuhlola eshiwo. I-ISO inemikhawulo yezinsimbi eziyisishiyagalombili, futhi ibhekisela endleleni yokuhlola ye-ISO yokuhlaziya izinsimbi. I-ISO 17225-2 iphinda ibale izidingo zamapharamitha ambalwa angeziwe angafakiwe kumazinga e-PFI, okuhlanganisa izinga lokushisa lokuguquguquka, i-nitrogen nesibabule.

Nakuba amazinga e-PFI kanye ne-ISO ebonakala efana kakhulu ngezindlela eziningi, kubalulekile ukuqaphela umehluko ocashile ovame ukucashile ezincazelweni nezindlela zokuhlola ezikhonjiwe, njengoba i-PFI ne-ISO ingaqhathanisi ngaso sonke isikhathi.