how do i calculate my recirculating load

How to calculate data center cooling requirements

To calculate your data center cooling needs, you need several pieces of data: the total heat output of equipment, floor area in square feet (ft 2), facility design and electrical system power rating. One thing to remember is that some older equipment might have been designed to older ASHRAE cooling standards.

How to SIZE a Sluice Box

How to SIZE a Sluice Box. This week I went and asked "how to SIZE a sluice box" to the crew on a large gold prospector forum and other sluice or gravity gold recovery 'experts' and gathered the list …

How to Choose the Right Recirculating Pump for Your Home

While recirculating pumps do slightly increase energy consumption, the energy savings from reduced water waste usually outweighs this added energy consumption. ... To calculate the energy cost per hour, you can multiply the pump's wattage by the cost of electricity per kilowatt-hour (kWh) in your area. (Call your utility …

Cooling Tower Selecting, Sizing, and Design

The Design Heat Load is determined by the Flow Rate, and the Range of cooling, and is calculated using the following formula: Heat Load (BTU/Hr) = GPM X 500 X Range (T1 – T2) °F. If the range of cooling, Heat Load, and one of the other two factors are known (either the GPM or the ° Range of cooling), the other can be calculated using this ...

What size pump should I use on my recirculation system?

Selecting the correct size recirculation pump is a fairly involved process and there is not a "one size fits all" solution. Your entire hot water plumbing system needs to be taken into consideration to make sure the pump is able to create not only enough flow to activate the tankless unit but to efficiently circulate the water quick enough to …

Hot Water Circulation Pump Calculator – Free Excel Sheet

Free Download Hot Water Circulation Pump Calculator (xls) – Free Excel Sheet for Calculating Hot Water Recirculation Rates And Pipes Sizing. Download Free MEP Calculation Excel Sheets, AutoCAD Drawings, and Training Courses for HVAC, Firefighting, Plumbing and Electrical Systems Design.

Common & Basic Formulas for Mineral Processing …

Then circulating load ratio = (Do-Dm)/(Dm-Ds) (8) And circulating load tonnage = F (Do-Dm)/(Dm-Ds) (9) Example: A mill in closed circuit with a classifier receives 300 dry tons of crude ore per day, and the percentages of solid are respectively 25, 50, and 84% in the classifier overflow, feed to classifier, and sand, equivalent to L: S ratios ...

Body Fat Calculator

Body Fat Calculator. The Body Fat Calculator can be used to estimate your total body fat based on specific measurements. Use the "Metric Units" tab if you are more comfortable with the International System of Units (SI). To get the best results, measure to the nearest 1/4 inch (0.5 cm).

Grinding Bulletin #4 – Metcom Technologies

There is a two step answer to this question. The first step is to recognize the relationship between the ball mill circuit circulating load ratio (CLR) and the overall circuit capacity …

How to Quickly Calculate a Centrifugal Pump's Total Dynamic …

Centrifugal pump manufacturers commonly present performance curves with units of pump head shown in feet of liquid. An ideal pump with a given impeller diameter and operating speed will raise a liquid to a certain elevation in the discharge pipe, regardless of the density (or specific gravity) of the fluid.

Boiler Combustion

Flue gas recirculation technology can be classified into two types; external or induced. External flue gas recirculation utilizes an external fan to recirculate the flue gases back into the flame. External piping routes the exhaust gases from the stack to the burner. A valve controls the recirculation rate, based on boiler input.

Ball Screw Selection and Calculations

Dynamic Load Rating C a and Life • The basic load rating C a is the load in the shaft direction with 90% of a group of the same ball screws operating individually will reach a life of 106 (1 million) revolutions. 6 3 ⎟⎟ ×10 ⎠ ⎞ ⎜⎜ ⎝ ⎛ = w a a f F C L L: Rotation life [rev] Ca: Basic dynamic load rating [N, kgf, lbf] fw: Load ...

Circulating Load Calculation Formula

Circulating Load Calculation Formula. Here is a formula that allows you to calculate the circulating load ratio around a ball mill and hydrocylone as part of a grinding circuit. For example your ball mill is in closed circuit with a set of cyclones. The grinding …

Cooling Load Calculation Guide (Methods & Examples)

My bedroom has two windows. The area of my windows is 2.25 m 2 for the one facing south and 3.6 m 2 for the big one that is facing west.. From the ASHRAE glass load factor table, a regular single glass at 35°C design temperature with shading is 104 W/m 2 for the south window and 158 W/m 2 for the west window.. Using the window …

Paycheck Calculator

Free paycheck calculator to calculate your hourly and salary income after taxes, deductions and exemptions. ... Your federal tax bracket varies yearly, and you need to check the latest data before you do your tax return. You can refer to Tax Foundation for the latest federal income tax brackets. The income tax rate varies from state to state.

How Many CFM Do I Need For My Range Hood?

First, determine the volume of your kitchen. To calculate your kitchen's size in cubic feet, multiply the length by the width and height. For example, your kitchen is 18' long x 14' wide x 9' tall = 2,268 cubic feet.

Extraction Rate Calculator

How do you calculate the extraction rate? Aside from using our extraction rate calculator, you can use the following formula: Extraction rate (m3/hr) = room volume (m3) x recommended air changes per hour. For example, if your bathroom is 3 meters long, 2 meters wide, and 2.5 meters high, the volume would be 15 cubic meters.

Measure and Determine the Circulating Load in a …

Measure and Determine the Circulating Load in a Crushing Circuit. Laboratory Testing Consulting & Engineering Process Equipment.

Circulating load calculation in grinding circuits

The present work presents a low-complexity iterative algorithm for circulating load calculation in mineral processing closed circuits, thus enabling the construction of reliable mass,...

Selecting a Recirculating Chiller & Cooling Capacity Factors

With a cooling fluid of water, 60 Hz power, at 20°C ambient, what is the appropriate recirculating chiller? Using the thermal performance graphs (fig 1), draw a horizontal line at the required heat load (2000 W). As shown, the RC022 would match this requirement at 13°C (55°F). This is TIN (the temperature exiting the recirculating chiller).

Calculating the Heat Generated by a Recirculating Chiller

How to Calculate the Heat Generated by a Recirculating Chiller. The way you calculate the heat generated will depend on one important factor: the type of condenser the chiller uses. Air-cooled condensers will release heat into the air rather than transferring it to the facility water as do water-cooled condensers.

A Guide to Electrical Load Calculation | Family Handyman

Subtotal Existing Load: 15,000 VA: First 8,000 VA of existing load at : 8,000 VA: Remaining existing load at 40% (15,000 VA – 8,000 VA = 7,000 VA) (7,000 VA x 40% = 2,800 VA) 2,800 VA: Total Existing Load: 10,800 VA: Convert 10,800 VA to amperes (10,800 VA divided by 240 Volts = 45 Amps) A 100-ampere service is more than …

Beam Load Calculator

Our calculator is easy and simple to use. All you have to do is input the span of the beam, the magnitude of the point loads, and their distances from support A.At first, you will only see fields for two loads (Load 1 and Load 2), but once you enter a value for x 2 small x_2 x 2, the fields for Load 3 will show up, and so on.. If you want to enter …

Air Changes Per Hour Calculator (CFM Based Formula

Note: This post has [comment_no] approved comments. If you have difficulty calculating the ACH with the calculator below, we can help you out in the comment section. Here is a neat air change per hour calculator you can freely use. Just put in the area, ceiling height, and CFM of an HVAC device in question, and you can calculate ACH: ACH Calculator

Design Considerations for Hot Water Plumbing

Determine the total fixture unit load for all the fixtures serviced by your water heater application using the Fixture Units in Table 1. Fixture Type Qty. Fixture demand weight Hot Water Cold Water Total (Hot & Cold) WC (flush valve) 52 @ 10 - 520 520 Urinals 30 @ 5 - 150 150 Lavatories 40 @ 2 - - 80 Lavatories 40 @ 1.5 60 60

Circulating Pump Sizing Calculator

How many recirculating pumps do I need? The number of recirculating pumps needed depends on the size and layout of your plumbing system. In most homes, a single recirculating pump is sufficient to provide hot water quickly to all fixtures. How do I know if my pump is oversized? If your pump is oversized, you may notice higher energy …

Social Security Quick Calculator

Benefit Calculators. Frequently Asked Questions. Benefit estimates depend on your date of birth and on your earnings history. For security, the "Quick Calculator" does not access your earnings record; instead, it will estimate your earnings based on information you provide. So benefit estimates made by the Quick Calculator are rough.

How to Calculate Kilowatt-Hours (kWh Calculation)

A hot wash, cold rinse wash uses about 2.3 kWh per load, and a dryer uses somewhere between 2.5-4 kWh per load. ... A hairdryer consumes 1.5 kWh per hour. How do I calculate how many kWh an appliance uses? If you want to know how to calculate kWh usage, you can usually find the electricity rating of an appliance in the instructions, on …

Circulating load calculation in mineral processing closed …

The present work shows that the calculation of the circulating load can be understood as a mathematical function where it is wanted to minimize the error and, …