### How to Convert BTU to GPM | eHow

This unit of measurement is valid when considering either the amount of thermal energy absorbed in a heating process or the amount of energy rejected in a cooling process. The BTU/Hour measurement of a device is related to the gallons per minute of liquid flow in the device, and the two units of measurement can be derived from one another with ...

Get Price### BTU Calculator And Formulas - Water Chillers

Accurately measure the water temperature entering and exiting your process. Use this formula to calculate BTU cooling required: Formula. BTU = Flow Rate In GPM (of water) x (Temperature Leaving Process - Temperature Entering Process) x 500.4 *Formula changes with fluids others than straight water. BTU Calculator for Weighed Water Test

Get Price### Calculating Cooling Loads - Engineering ToolBox

Cooling Tower Tons. A cooling tower ton is defined as: 1 cooling tower ton = 1 TONS evap = 1 TONS cond x 1.25 = 15000 Btu/h = 3782 k Calories/h = 15826 kJ/h = 4.396 kW. The equivalent ton on the cooling tower side actually rejects about 15000 Btu/h due to the heat-equivalent of the energy needed to drive the chiller's compressor. This equivalent ton is defined as the heat rejection in cooling ...

Get Price### Estimating Methods for Determining End-Use Water ...

The Federal Building Metering Guidance specifies buildings with water using processes and whole building water consumption that exceeds 1,000 gallons per day must have a water meter installed. Below are methods for estimating daily water use for typical end-uses that drive building-level, end-use water .

Get Price### Calculate Slurry Flow / Volume

An example of how you can calculate the slurry flow/volume of a given SG, %Solids and Tonnage. EXAMPLE: 3,400 tons of dry solids is processed in 24 hours in water with a specific gravity of 1.0 and the concentration of solids by weight is 33% with the solids having a specific gravity of 3.7 then using the formula below: Calculate the Capacity of an Agitator & Conditioner

Get Price### Chiller flow rate measurement and calculation, chilled and ...

Nov 15, 2017· In this video we learn how to measure the flow rate through a chiller. This is can be used for chilled water and condenser water. Applicable to water cooled chillers and air cooled chiller.

Get Price### calculate gpm water to tons of ore - Minevik

calculate gpm water to tons of ore How to Convert GPM to Cooling Rate in Tons, Sciencing. A standard formula for finding a chiller's cooling capacity from its flow rate in gallons per minute determines the cooling rate in British Thermal Units (BTUs) per hour. One refrigeration ton is a cooling rate of 12,000 BTUs per hour.

Get Price### How to Size a Chiller | BV Thermal Systems

Calculate tons of cooling capacity Tons = BTU/hr. ÷ 12,000; Oversize the chiller by 20% Ideal Size in Tons = Tons x 1.2; You have the ideal size for your needs; For example, what size chiller is required to cool 10 GPM from 72°F to 58°F? ΔT°F = 72°F – 58°F = 14°F; BTU/hr. = 10 gpm .

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Sep 29, 2003· The ore contains 4 wt.% chalcopyrite, 6 wt.% iron sulfide minerals (predominantly as pyrite) and 82 wt.% nonsulfide gangue minerals, quartz and dolomite. The ore (1000 g) was ground in a stainless steel Galigher mill with mild steel rods for 20 min at pH 12.5 to produce a feed of particle size d 80 of around 84 μm. Conditioning and flotation ...

Get Price### Flow Rate Calculator - calculate the flow rate of a pipe

If we further know that the density of water is 1000 kg/m 3 we can calculate the mass flow rate to be 17.6715 m 3 /h · 1000 kg/m 3 = 17671.5 kg/h (= 17.6715 tonnes per hour, m 3 cancels out). Example 2: A rectangular pipe has a height of 2cm and width of 4cm and a gas running through it at a speed of 15 m/s.

Get Price### Determining Chiller Size (Because Size DOES Matter!)

Mar 27, 2018· To illustrate how this formula works, let's say we need to cool 4 GPM (gallons per minute) from 85 °F to 75 °F. This makes our incoming water temperature 85 °F, the required chilled water temperature 75 °F and the flow rate 4 GPM. Step One: Calculate Temperature Differential (ΔT°F) Step Two: Calculate BTU/hr.

Get Price### Chiller Cooling Capacity - How to calculate - The ...

Jul 22, 2017· The water flow rate of chilled water into the evaporator is 0.0995m3/s, the inlet temperature is 12*c and the outlet temperature is 6*c. This means the average temperature is 9*c so we lookup the water properties at this temperature to find the density of 999.78kg/m3 and a specific heat capacity of 4.19kJ/kg/K.

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Calculate circle area from diameter; Calculate circle diameter from area; User Guide. This tool will calculate the force generated by a piston cylinder for a specified pneumatic/hydraulic pressure and piston-cylinder bore diameter. Formula. The formula used by this calculator to determine the piston cylinder force from pressure and diameter is ...

Get Price### Tonnage Calculator | Hedrick Industries

100' x 10' x 3"/12" x 140 lbs/2000 lbs = 17.5 Tons. We have tandem, tri-axle, and quad-axle dump trucks available for delivery that can haul from 15 – 20 tons of material per load or less if requested.

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ore first enters the circuit to the production of concentrate and tailings. To prepare ore for the flotation process, run-of-mine ore, which may contain from about 2 to 5 percent water, by weight, when mined, is delivered to the crusher(s) to be reduced in size. At this stage, much of the moisture with the ore may be

Get Price### Commonly Used HVAC Formulae and Conversions

Chiller capacity (tons) = gpm (chilled water) x ∆t (water)/24 For Air: 1 lb/h = 4.5 Q 1 ton = Q∆h/2670 cfm x static pressure (in. w.g.) Density of air 6356 x Efficiency Density of standard air Small fans 0.40 – 0.50 efficiency Large fan 0.55

Get Price### Cooling Tower Makeup Water Calculation with Example

May 19, 2017· Inlet water flow rate = 10 000 gpm. Inlet water temperature = 100 o F. Outlet water temperature = 85 o F. Drift loss = 0.02%. Cycles of concentration = 5 Recall again, cooling tower makeup water = evaporation loss + drift loss + blowdown. Let's calculate each component. Evaporation loss = 0.00085 x 10 000 x (100-85) = 127.5 gpm

Get Price### How to correctly size a chiller - Industrial Water Chiller

BTU/ hour = 500 x GPM x Temperature Difference (delta T) Repeat this for all the equipment you have, and add up the total BTUs. Now that you have the BTUs, compute the total tons of cooling you need from a chiller. For example, 1 Ton of cooling is 12,000 BTU/hour s # Tons = (BTU/hr) / (12,000) This is the size unit you should need.

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Mining Cost Service is the industry standard reference for Mining Cost Estimation. This system places cost estimating data at your fingertips with conveniently indexed information to make your cost estimates faster, easier, and more credible.

Get Price### Common & Basic Formulas for Mineral Processing Calculations

Metallurgical ContentMINERAL PROCESSING FORMULASPulp DensitiesCalculation of Circulating Load in a ClassifierCalculation of Classifier EfficiencyScreen EfficiencyMeasure Tonnage by Water Ratio (Pulp Dilution)Pulp Density TablesConcentration and Recovery FormulasTwo-Product FormulasThree-Product FormulasReagent Consumption CalculationsLiquid-Solid Relationships Specific Gravity & .

Get Price### Estimating Methods for Determining End-Use Water ...

The Federal Building Metering Guidance specifies buildings with water using processes and whole building water consumption that exceeds 1,000 gallons per day must have a water meter installed. Below are methods for estimating daily water use for typical end-uses that drive building-level, end-use water .

Get Price### Process Cooling System Chiller and Tower ... - Water Chillers

Process Cooling System Chiller and Tower Sizing Formulas. TOWER SYSTEM DESIGN FORMULAS; Cooling Tower = 3 Gallons per Minute per ton; 1 Tower Ton = 15,000 BTU/hr; Tower Ton = GPM x ΔT/30; ... Spot Welders = 1/4 ton per tip (for chilled water) Plating Baths = Heat removal (BTU / hr) = DC amps x DC volts x 2.56 ...

Get Price### How to Size a Chiller | BV Thermal Systems

Calculate tons of cooling capacity Tons = BTU/hr. ÷ 12,000; Oversize the chiller by 20% Ideal Size in Tons = Tons x 1.2; You have the ideal size for your needs; For example, what size chiller is required to cool 10 GPM from 72°F to 58°F? ΔT°F = 72°F – 58°F = 14°F; BTU/hr. = 10 gpm .

Get Price### Study 63 Terms | AP Environmental... Flashcards | Quizlet

Calculate the weight (in tons) of rock waste produced globally each year when iron ore is converted to pig iron. 1.6 billion tons of iron ore - 1.2 billion tons of pg iron = .4 billion tons of waste Calculate the weight (in tons) of pig iron that could be produced if all of the estimated global iron ore reserves were used for pig iron production.

Get Price### TENORM: Bauxite and Alumina Production Wastes | US EPA

Wastes can be generated at several points in the production process, including during the mining of the bauxite ore, and during the refinery production process. The refinery processes used to produce aluminum generates about 2 – 2.5 tons of solid waste for every 1 ton of aluminum produced.

Get Price### How to calculate the tonnage of a chiller for an injection ...

The Purpose of an industrial chiller is to move heat from one location to another place. It is very common to use water or a water/glycol or any other coolant solution to transfer the heat to and from the chiller which may require the process chil...

Get Price### Calculating Process Chiller Loads | SmartBlog

Nov 07, 2018· Since we know that there are 8.33 lbs in each gallon of water and 60 minutes in an hour, we can convert the "m" value to GPM or gallon per minute (of water). That factor is 499.8. With that, our equation now looks like this: Q = GPM x C x ΔT x 499.8

Get Price### AMIT 135: Lesson 2 Circuit Mass Balancing – Mining Mill ...

M w = water weight; This equation is often used to determine the amount of water in a process stream1 knowing the solids concentration by weight and the tons/hr of solids in a process stream. Solids Concentration Example. The underflow stream from the classifying cyclone bank contains 100 tons/hour of ore which represents 45% of the total ...

Get Price### Estimated Water Requirements for Gold Heap-Leach Operations

Estimated process water and makeup water requirements for modeled gold heap-leach ... to 1 kg for each metric ton of ore placed on the stack. Depending on the individual site characteristics, relatively small amounts of other materials may be added to the solution, but water is the critical ...

Get Price### Formula Sheet for all Wastewater Operator Exams Revised 8 ...

1 Formula Sheet for all Wastewater Operator Exams Revised 8/15 F001 Surface area of a pond, acres = Length, ft x Width, ft 43560 F002 Volume of a pond, MG =

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