http://www.roliv.com Jobs Salary Internship Colleges Careers Syllabus Notes Wed, 24 Mar 2010 17:09:31 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 http://www.roliv.com/effect-of-delivery-pipe-diameter-of-a-centrifugal-pump-delivery-time-flow-height-used-for-water.html http://www.roliv.com/effect-of-delivery-pipe-diameter-of-a-centrifugal-pump-delivery-time-flow-height-used-for-water.html#comments Fri, 29 Jan 2010 04:53:14 +0000 admin http://www.roliv.com/effect-of-delivery-pipe-diameter-of-a-centrifugal-pump-delivery-time-flow-height-used-for-water.html We have two series connected 2.2 kw (3HP) centrifugal pumps used for domestic water supply from ground floor to over head tank at 25 m high. Delivery line has 100 mm dia. reduced to 40 mm dia. GI pipe If we change the 40 mm dia. GI pipe to 75 mm dia. GI or PVC pipe, will there be any saving on pumping time?

]]> http://www.roliv.com/effect-of-delivery-pipe-diameter-of-a-centrifugal-pump-delivery-time-flow-height-used-for-water.html/feed 2 http://www.roliv.com/what-is-the-effect-of-suction-head-of-a-centrifugal-pump-on-its-shut-off-head.html http://www.roliv.com/what-is-the-effect-of-suction-head-of-a-centrifugal-pump-on-its-shut-off-head.html#comments Wed, 27 Jan 2010 12:51:11 +0000 admin http://www.roliv.com/what-is-the-effect-of-suction-head-of-a-centrifugal-pump-on-its-shut-off-head.html I would like how is the pump’s suction head related to its operational head? or discharge head? or on its performance…

]]> http://www.roliv.com/what-is-the-effect-of-suction-head-of-a-centrifugal-pump-on-its-shut-off-head.html/feed 1 http://www.roliv.com/effect-of-flow-rate-in-heat-exchanger-on-the-overall-heat-transfer-coefficient.html http://www.roliv.com/effect-of-flow-rate-in-heat-exchanger-on-the-overall-heat-transfer-coefficient.html#comments Mon, 04 Jan 2010 12:50:47 +0000 admin http://www.roliv.com/effect-of-flow-rate-in-heat-exchanger-on-the-overall-heat-transfer-coefficient.html i’m doing this experiment on heat exchanger. I’m supposed to discuss the effect of changing the flow rate on the overall heat transfer coefficient as well as the effect on the temperature and efficiency. I need some help so anything would be great.

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