The axialflow ventilator's movement scope is the stall line limit. If surpass this limit, first causes the leaf blade place air current on the necessity to present the local separation. When in the air blower has the ration turbulent flow,limestone for sale arkansas on the possibility, namely air draft periodic flowing backwards. works as system's resistance hairs breadth in the performance diagram of curves stall line place above, as a result of unstable appearance, then ventilator impossible in corresponding pressure, current capacity scope operating point movement. If the machine in the non-stability region movement, will cause the leaf blade to have the excitation, will cause the endurance failure.
Granite veneer counter tops
Kitchen and bathroom countertops
Make my counters look like granite
没有评论:
发表评论