Ko ngā peera he wāhanga e whakatika ana, e whakaiti ana hoki i te tauwehenga waku kawenga i te wā e tukuna ana te hiko. Ka taea hoki te kī, ina whakaputahia e ētahi atu wāhanga te nekehanga whanaunga ki runga i te rakau, ka whakamahia hei whakaiti i te tauwehenga waku i te wā e tukuna ana te hiko, me te pupuri i te tūranga pumau o te pokapū rakau. He wāhanga nui ngā peera i roto i ngā taputapu miihini o ēnei rā. Ko tana mahi matua he tautoko i te tinana hurihuri miihini hei whakaiti i te tauwehenga waku kawenga miihini o te taputapu i te wā e tukuna ana te hiko. E ai ki ngā āhuatanga waku rerekē o ngā wāhanga neke, ka taea te wehewehe i ngā peera kia rua ngā momo: ngā peera hurihuri me ngā peera reti. 1, He koki whakapā i waenganui i te whakapā koki.peera pōrote mowhiti me te pōro. Ko ngā koki whakapā paerewa he 15°, 30°, me te 40°. Ko te nui ake o te koki whakapā, ko te nui ake o te kaha kawenga tuaka. Ko te iti ake o te koki whakapā, ko te pai ake mō te huri tere-teitei. Ka taea e ngā peera rarangi kotahi te tu atu ki ngā kawenga tuaka radial me te unidirectional. I roto i te hanganga, e rua ngā peera pōro whakapā koki rarangi kotahi me te huinga tuara e tohaina ana ngā mowhiti o roto me o waho, ka taea te tu atu ki ngā kawenga tuaka radial me te bidirectional. Ngā whakamahinga matua o ngā peera pōro whakapā koki: rarangi kotahi: te miro taputapu mīhini, te motuka auau-teitei, te tāwhana hau, te wehewehe centrifugal, te wira o mua o te motuka iti, te rakau pinion rerekē. Pou rua: te papu hinu, te pupuhi pakiaka, te compressor hau, ngā momo tuku, te papu werohanga wahie, te mīhini tā. 2, E rua ngā rarangi pōro maitai o te peera pōro whakatikatika-ake, ā, ko te reihi o waho he momo mata pōro o roto. Nō reira, ka taea e ia te whakarite aunoa i te he o te rakau i puta mai i te piko, te kore-pokapū rānei o te rakau, o te anga rānei. Ka taea te tāuta ngāwari i te peera kōhao whakarara ki runga i te pou mā te whakamahi i ngā whakapiri, ko te nuinga he pikau i ngā kawenga radial. Ko te whakamahinga matua o ngā peera pōro whakatikatika-ake: ngā mīhini mahi rakau, ngā pou tuku mīhini kakahu, ngā peera whakatikatika-ake nohoanga poutū. 3, peera roera whakatikatika-ake. He roera porowhita kei roto i tēnei momo peera i waenganui i te mowhiti o waho o te ara reihi porowhita me te mowhiti o roto o te ara reihi takirua. E ai ki ngā hanganga o roto rerekē, ka taea te wehewehe kia whā ngā momo: R, RH, RHA, me SR. Nā te ōrite i waenganui i te pokapū pewa o te ara reihi o waho me te pokapū o te peera, he mahi whakatikatika-ake tōna. Nō reira, ka taea e ia te whakarite aunoa i te he o te tuaka i puta mai i te piko, te kore rānei o te porowhita o te pou, o te anga rānei, ā, ka taea te tu atu ki te he o te radial.
Wā tuku: Whiringa-ā-rangi 16-2023