INFINITY TURBINE | SALES | DESIGN | DEVELOPMENT | ANALYSIS CONSULTING
TEL: +1-608-238-6001 (Chicago Time Zone )
Email: greg@infinityturbine.com
ElectraTherm 125 kWe ORC and Hurst Boiler For Sale | Biomass and Waste Heat to Energy This pre-packaged 40-foot container combines a 125 kWe Organic Rankine Cycle generator with an industrial Hurst boiler to deliver grid-ready electricity from heat that would otherwise be wasted. With minimal runtime and turnkey integration, this mobile energy platform enables rapid deployment for biomass systems, industrial facilities, and distributed power projects where reliable on-site generation is required. More Info
IT1000 Supercritical CO2 Gas Turbine Generator Silent Prime Power 1 MW (natural gas, solar thermal, thermal battery heat) ... More Info
Supercritical CO2 Turbine TDK Technology Development Kit Use our base tech and make your own IP for Data Center Prime Power Generators using Natural Gas or using Waste Heat... More Info
Salgenx Saltwater Flow Grid Scale Battery Technology Development Kit (TDK) Register your own IP with our package. Finish your own cathode then own your IP, then manufacture. Buy sales leads, license or buy Salgenx name for your own production. More Info
ORC and Products Index Infinity Turbine ORC Index... More Info
________________________________________________________________________________
|
Flow vs Head Comparison of Tesla Disc Pump and Discflo Type Pump Below is a quantitative, engineering-style comparison of expected (modeled) flow vs head performance for:1. a Tesla-style disc pump similar to your prior design assumptions (12 inch disc class, 1.0 mm gap, mining-water configuration), and2. a Discflo-type Discpac pump (disc stack with engineered spacing and optional high head / ribbed disc features).Important boundary condition: Discflo publishes very broad capability ranges and configurable Discpac geometry, including disc diameters (8 to 20 inch), disc counts (2 to 20), and ribbed High Head discs options. ([Discflo][1]) Their catalog also describes very high flow and head ranges for larger/multistage units (flows up to 8,000 gpm and heads up to 1,200 ft), which are not representative of a 10 HP skid but do confirm the design family’s scaling envelope. ([Discflo][2])Because neither you nor Discflo provided a specific manufacturer pump curve for the exact model/impeller/disc pack, the curves below are modeled expected field curves that are internally consistent with:• 10 HP hydraulic power limits,• disc pump behavior (slip increases with flow; head falls with flow),• and the Discflo design intent (optimized disc spacing, optional high-head discs, and better stability in tough fluids). ([Discflo][3])Fluids modeledFluid A: Wash-plant water• Viscosity: 1.2 cP• Specific gravity: 1.03 (lightly dirty water)Fluid B: Dirty water slurry• Viscosity: 5 cP (water + fines, not a thick paste)• Specific gravity: 1.15 (heavier solids loading)These are realistic wash plant numbers (not extreme 40%+ solids paste).Pump configurations comparedTesla-style disc pump (your prior architecture)• Disc pack: 12 inch class, 1.0 mm gap, mining-water clearances• Intended duty: high flow, low-to-moderate head wash water• Note: with 1.0 mm spacing, clean-water viscous coupling is weaker than tight-gap designs, but solids tolerance improves (your earlier tradeoff).Discflo-type Discpac pump (typical configuration concept)• Discpac engineered for the fluid: disc spacing and disc count tuned, with optional ribbed High Head discs where needed. ([Discflo][1])• Discflo indicates these pumps can be configured to handle harsh fluids (high solids, viscosity, entrained gas) and remain stable. ([Discflo][3])Modeled performance curves (10 HP class)Interpretation guide:• Head is shown in ft and meters• Pressure is shown as differential pressure, derived from head and the fluid’s SG1) Tesla-style disc pump — wash water (SG 1.03, 1.2 cP)Assumed curve anchor points: shutoff head about 80 ft, max flow about 650 gpm (low head). This aligns with a high-flow wash-water duty band.Flow (gpm) | Flow (m3/h) | Head (ft) | Head (m) | ΔP (psi) | ΔP (bar)• 0 | 0.0 | 80.0 | 24.4 | 35.7 | 2.46• 162 | 36.9 | 75.0 | 22.9 | 33.4 | 2.31• 325 | 73.8 | 60.0 | 18.3 | 26.8 | 1.84• 488 | 110.7 | 35.0 | 10.7 | 15.6 | 1.08• 585 | 132.9 | 15.2 | 4.6 | 6.8 | 0.47• 650 | 147.6 | 0.0 | 0.0 | 0.0 | 0.00Practical operating wash plant region (typical): 350 to 600 gpm at about 10 to 25 ft (roughly 4 to 11 psi at SG 1.03).2) Tesla-style disc pump — dirty slurry (SG 1.15, 5 cP)Modeled with slightly reduced max flow and head to represent solids slip and additional internal losses in abrasive duty.Flow (gpm) | Flow (m3/h) | Head (ft) | Head (m) | ΔP (psi) | ΔP (bar)• 0 | 0.0 | 75.0 | 22.9 | 37.3 | 2.57• 150 | 34.1 | 70.3 | 21.4 | 34.9 | 2.41• 300 | 68.1 | 56.3 | 17.1 | 28.0 | 1.93• 450 | 102.2 | 33.0 | 10.1 | 16.4 | 1.13• 540 | 122.6 | 14.6 | 4.4 | 7.3 | 0.50• 600 | 136.3 | 0.0 | 0.0 | 0.0 | 0.00Key point: for the same head (ft), slurry pressure is higher because SG is higher.3) Discflo-type Discpac pump — wash water (SG 1.03, 1.2 cP)Modeled with higher head at comparable flow due to engineered disc spacing, lower slip for the same duty, and the availability of high head disc options. Discflo explicitly describes tunable disc spacing/count and ribbed high head discs. ([Discflo][1])Flow (gpm) | Flow (m3/h) | Head (ft) | Head (m) | ΔP (psi) | ΔP (bar)• 0 | 0.0 | 110.0 | 33.5 | 49.1 | 3.39• 175 | 39.7 | 103.4 | 31.5 | 46.1 | 3.18• 350 | 79.5 | 83.6 | 25.5 | 37.3 | 2.57• 525 | 119.2 | 50.1 | 15.3 | 22.3 | 1.54• 630 | 143.1 | 22.4 | 6.8 | 10.0 | 0.69• 700 | 159.0 | 0.0 | 0.0 | 0.0 | 0.00Practical interpretation: at the same 350 to 600 gpm wash-plant supply band, the modeled Discflo-type curve sustains more head margin (useful for longer runs, higher elevation, more fittings, or higher spray-bar requirements).4) Discflo-type Discpac pump — dirty slurry (SG 1.15, 5 cP)Modeled with slightly higher shutoff head than wash water because disc pumps generally maintain coupling as viscosity rises, and Discflo explicitly notes improved efficiency and lower power draw in higher-viscosity regimes (for much higher viscosities than we’re modeling here). ([Discflo][1])Flow (gpm) | Flow (m3/h) | Head (ft) | Head (m) | ΔP (psi) | ΔP (bar)• 0 | 0.0 | 125.0 | 38.1 | 62.2 | 4.29• 170 | 38.6 | 117.5 | 35.8 | 58.4 | 4.03• 340 | 77.2 | 94.9 | 28.9 | 47.2 | 3.25• 510 | 115.8 | 56.6 | 17.3 | 28.2 | 1.94• 612 | 139.0 | 25.2 | 7.7 | 12.6 | 0.87• 680 | 154.5 | 0.0 | 0.0 | 0.0 | 0.00What these curves say in practical wash-plant termsAt wash plant supply duty (high gpm, low head)• Both pump types can be engineered to deliver bulk wash water.• The Tesla-style (1.0 mm gap) tends to be most attractive when: • you prioritize simplicity and modular parallelization, • you accept lower head margin, • you want larger clearances for grit tolerance.When the system has real head (spray bars, elevation, long hose runs, restrictive manifolds)• The Discflo-type architecture is expected to retain more head at the same flow, because the Discpac is explicitly configurable (disc spacing, disc count, and high-head disc geometry). ([Discflo][1])• This is exactly where disc pump selection wins or loses in mining: if you need 600 to 1,300 gpm and you also need 30 to 60 ft of head, a softer curve forces you to add more pumps.Slurry sensitivity• Your Tesla-style pump with 1.0 mm gap will generally be more sensitive to wear-induced clearance growth, because performance depends strongly on slip and boundary layer coupling.• Discflo’s published positioning emphasizes long life in abrasive and solids-laden service via non-impingement laminar flow and engineered Discpac spacing. ([Discflo][3])How to use this for sizing pump skids on MSI plantsIf you give me one target operating point per plant (for example, SV6 at 2,000 gpm and 25 ft TDH, or spray bars need 20 psi at the manifold), I can translate these curves into:• number of 10 HP modules in parallel for Tesla-style versus Discflo-type,• expected operating rpm bands,• and the relative energy draw and redundancy strategy.If you want, I can also produce the same curves for a bigger module (for example, 25 HP or 50 HP) since mining plants often size by fewer larger pumps to reduce manifold complexity.[1]: https://discflo.com/wp-content/uploads/2024/09/Discflo-Brochure.pdf Corporate Brochure[2]: https://discflo.com/pumps-products Sanitary Multistage Centrifugal Pump | High Quality Products[3]: https://discflo.com/pumps-products/technology Technology |
| CONTACT TEL: +1-608-238-6001 (Chicago Time Zone USA) Email: greg@infinityturbine.com | AMP | PDF |