Total dynamic head definition

Total dynamic head or "TDH" means the arithmetical difference between the total discharge head and total suction head (a vacuum reading is considered as a negative pressure). This value is used to develop the published performance curve.
Total dynamic head means the hydraulic calculation of the resistance to flow in a circulation system based on the Hazen-Williams formula in Regulation .25C(1)(a) of this chapter.
Total dynamic head or "TDH" means the arithmetical difference between the total discharge head and total suction head

Examples of Total dynamic head in a sentence

  • Total dynamic head calculations for all applicable pumping situations.

  • The Awardee must take affirmative steps to procure supplies, equipment, construction, or services to fulfill this Agreement from minority and women's businesses, and to provide these sources the maximum feasible opportunity to compete for subcontracts to be procured pursuant to this Agreement.

  • Total dynamic head to be determined on site 1.4 Casings(a) Casings to be used as part of the permanent borehole structure shall be stainless steel suitable for borehole and having nominal diameter of 152mm.(b) If any casing other than that to be left permanently in the borehole is required temporarily for execution of work, it shall be supplied by the Borehole Contractor free of charge.

  • Background On November 30, 1993, the Boston Beer Company filed an application to register “The Best Beer In America” on the principal register for “beverages, namely beer and ale,” in Class 32.

  • Total dynamic head shall be as measured at the discharge of the pump and shall include velocity head and vertical static head from the minimum water level to the centerline of the pump discharge.D. Maximum pump speed shall not exceed 1500 RPM.

  • Total dynamic head of cooling tower pumps reduced from 96.4 feet to 73 feet through use of natural draft counter-flow cooling tower with its lesser static lift requirements.

  • Total dynamic head shall be a maximum at no-flow and decrease from no-flow to design flow.

  • The normalization also took into account the different water application efficiencies (the amount of water reaching the crop over the total amount of discharged water) of various irrigation methods, per the following reference: https://www.dropbox.com/s/jqbc1j92c4ckuln/Application%20Efficiencies%20-%20UCDavis%20-%20Sandoval%20Solis%20et%20al%202013%20-%20Report.pdf = Total dynamic head (feet) of the installed (low-pressure) irrigation pumping system.

  • Total dynamic head is the sum of the following: System head = 1.3 x distal head (ft)= 1.3 x 3.5 ft= 4.5 ft Elevation head = 9.0 ftFriction Loss = Table X-1 for 60 gpm and 125 linear feet= 5.6 x 1.25 = 7 ft for 2” diameter.

  • TDH = Total dynamic head of pumping plant in feet as identified in Table 4-3.OPE = Overall pumping plant efficiency as a decimal (0 - 1).


More Definitions of Total dynamic head

Total dynamic head means the hydraulic calculation of the resistance to flow in a
Total dynamic head means the arithmetical difference between the total

Related to Total dynamic head

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  • Total Evaluated CRIS MW means the Additional CRIS MW requested plus either (i) if the Installed Capacity Supplier previously received an exemption under Sections 23.4.5.7.2(b), 23.4.5.7.6(b), 23.4.5.7.7 or 23.4.5.7.8, all prior Additional CRIS MW since the facility was last exempted under Sections 23.4.5.7.2(b), 23.4.5.7.6(b), or 23.4.5.7.8, or (ii) for all other Installed Capacity Suppliers, all MW of Capacity for which an Examined Facility obtained CRIS pursuant to the provisions in ISO OATT Sections 25, 30, or 32 (OATT Attachments S, X, or Z). For purposes of Section 23.4.5 of this Attachment H, “UCAP Offer Reference Level” shall mean a dollar value equal to the projected clearing price for each ICAP Spot Market Auction determined by the ISO on the basis of the applicable ICAP Demand Curve and the total quantity of Unforced Capacity from all Installed Capacity Suppliers in a Mitigated Capacity Zone for the period covered by the applicable ICAP Spot Market Auction. For purposes of Section 23.4.5 of this Attachment H, “Unit Net CONE” shall mean localized levelized embedded costs of a specified Installed Capacity Supplier, including interconnection costs, and for an Installed Capacity Supplier located outside a Mitigated Capacity Zone including embedded costs of transmission service, in either case net of likely projected annual Energy and Ancillary Services revenues, and revenues associated with other energy products (such as energy services and renewable energy credits, as determined by the ISO, translated into a seasonally adjusted monthly UCAP value using an appropriate class outage rate. The Unit Net CONE of an Installed Capacity Supplier that has functions beyond the generation or transmission of power shall include only the embedded costs allocated to the production and transmission of power, and shall not net the revenues from functions other than the generation or transmission of power.

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