Читать книгу Statistics and Probability with Applications for Engineers and Scientists Using MINITAB, R and JMP - Bhisham C. Gupta, Irwin Guttman - Страница 20

It was now clear (i) that as well as were important and (ii) that was too low. It was conjectured that the matters might be improved by removing the horizontal screen altogether. Another experiment was therefore performed with no horizontal screen. The speed of rotation of the collar screen was introduced as a new variable.

Unfortunately, after only two runs of this experiment, this particular phase had to be terminated because of the excessive tearing of the cloth screens. From the scanty results obtained it appeared, however, that with no horizontal screen high solid removal could be achieved with a higher portion of the flow retreated. It was therefore decided to repeat these runs with screens made of stainless steel instead of cloth.