COMMERCIAL :5,2 INDUSTRIAL SUPPLEMENT. mbawasiiirdisupt-lwri7mAzonwpigivit..,Litiaxatimemmu
... coal, 10.9 per cent. it is obvious then thut multi-stage or regenerative teed-heating becomes more and wore worth while the higher the working pressure. PRESENT PRACTICE. The present state of the art regenerative feed-heating was aoly dealt with by Mr ...