Your browser isn’t supported any longer. Update it to find the best YouTube knowledge and our most up-to-date functions. Learn more Contrarily, non-DX or indirect expansion refers to equipment like chillers which use chilled drinking water as the medium of heat transfer in place of refriger

The permanganate technique is an additional common system for measuring COD. It entails adding a acknowledged excessive of potassium permanganate to a identified volume of sample in the existence of sulfuric acid. Inspite of its common use, there are some challenges connected with COD measurement

Person necessity specification (URS) shall be prepared via the user department in co-ordination with engineering based on past general performance and realistic practical experience. This can be of complete requirement, such as, inside a turn-vital challenge exactly where tons of equipment shall

A PSC motor is an older style and is still Employed in reasonably priced HVAC systems. PSC means permanent split capacitor. Modern heating and air con is great. Having the ability to tell your system what temperature you want your property is a lot better. You will discover 3 major areas A par

Schuchardt and Berg [196] adapted the Washburn equation by assuming a linear lessen with time in the pore radius within the wetted spot of the porous medium (a composite of cellulose and superabsorbent fibres). They regarded as R Some of the scientific studies [one hundred fifteen, 116] analysed