Table 7.

Test results of each index.

Indexes	$Q/({\text{m}}^3/h)$
	24	40.8	61.2	81.6	102	122.4	142.8
Prototype pump $H/\text{m}$	112.458	112.506	112.711	114.694	108.021	89.627	70.637
Optimization pump $H/\text{m}$	113.187	113.045	112.687	111.869	106.483	90.216	73.996
$\mathrm{\Delta }H/(\%)$	0.648	0.479	− 0.021	− 2.463	− 1.424	0.657	4.755
Prototype pump $\eta /\%$	26.13	33.28	38.21	47.33	62.44	59.62	56.37
Optimization pump $\eta /\%$	31.71	36.65	42.06	53.68	67.37	62.28	54.24
$\mathrm{\Delta }\eta /(\%)$	21.355	10.126	10.076	13.416	7.896	4.462	− 3.779