Comparison

Boiler Efficiency vs Darcy Weisbach Equations Calc

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Boiler Efficiency

Perform preliminary audits on boiler efficiency and identify various losses in steam generation. Customize boiler applications, compare fuel grades, and analyze heat balance and flue gas for potential savings and improvements.

Highlights
  • Boiler efficiency audits
  • Loss identification
  • Customizable boiler applications
  • Fuel grade comparison
  • Heat balance sheet
  • Flue gas analysis
  • CHP (Brayton) cycle analysis
Features
Read full description

BoilerFE can run a quick preliminary audit on boiler efficiency and various losses associated in generation of pressurized steam. Users can create their specific boiler application including CHP (Brayton) cycle by editing default generic boiler and save it in a file for time to time performance review. Thus it would also enable users to compare different grade of fuels used in the same boiler under similar conditions. Therefore, this app can be very helpful to energy engineers and auditors in assessing the potential savings as well as to identify areas for improvement. App covers different types of boilers including CHP with option to select fuels such as coal, oil and gases with specific compositions. Following is the list of fuels under each category one can select from the picker. Each fuel has a default calorific value (HHV) based on certain composition. Users can edit this default value for accuracy. For fuels that are not in the list, users can create a custom fuel with composition and calorific value. Coal: Coal-Illinois, Coal-Pennsylvania, Coal-Ohio, Coal-W.VA, Coal- Kentucky, Coal, Custom. Fuel Oil: Furnace Oil#1, Furnace Oil#2, Furnace Oil#3, Furnace Oil#4, Furnace Oil#5, Furnace Oil#6, LSHS, Methanol, Ethanol, LPG, Kerosene, HSD, Custom. Gas: Methane, Ethane, Propane, Butane, Natural gas, Custom. By default, App uses a generic Coal fired in an industrial boiler that can be edited for more specific applications. The screen shots displays this example with results on heat balance sheet, flue gas analysis and stoichiometry. A brief description of the combustion model used in this app is also provided in App notes for reference. Type of boilers and inputs: App covers packaged, industrial and utility boilers with specific design data for efficiency and heat balance calculations. Users can conveniently choose the different unit standards for data input. Input such as airflow, fuel type and feed rate can be edited for more specific application using the respective editable tool bar buttons. There is a separate section on CHP (Brayton) cycle that is activated from Boiler info screen. All CHP data can be saved as well with unique titles and reloaded as and when required. Foot notes are provided to help edit different input parameters. Result: Besides computation of boiler efficiency using direct method, app provides the following results as shown in the screen shots. 1.Heat balance sheet 2.Flue gas analysis 3.Stoichiometric analysis of the combustion process. In this version, the app notes has the link for a complete documentation of implementation and validation of math-model used in individual apps. Also in addition this document includes guidelines to plan periodic maintenance activities required for a satisfactory performance of different energy intensive equipment such as boiler, pump, heat exchangers etc. commonly used in process industries.

About

Darcy Weisbach Equations Calc

This physics and math calculator quickly computes fluid head loss, friction factor, and other pipe flow parameters. It supports various units and offers precise calculations up to 16 decimal places. Results can be easily copied to other applications.

Highlights
  • Instant calculation
  • Copyable results
  • Formula reference
  • 16 decimal place precision
  • Multiple unit support
  • Ad-free and private
Features
Read full description

Darcy-Weisbach Equations Calculator is a physics/math calculator designed to find fluid head loss, friction factor, pipe length, pipe diameter, or fluid flow velocity quickly and easily. Features: - Instant calculation. - Results are copyable to other apps. - Formulas are included as a reference. - Support up to 16 decimal places. - Support various units for each input. - Works seamlessly on both iPhone and iPad. - Lightweight, compact app optimized for everyday use. - Ad-free and built with privacy in mind. Darcy-Weisbach Equations for Hydraulics Fluid Mechanics In fluid dynamics, the Darcy–Weisbach equation is an empirical equation that relates the head loss or pressure loss due to friction along a given length of pipe to the average velocity of the fluid flow for an incompressible fluid. The equation is named after Henry Darcy and Julius Weisbach. Darcy-Weisbach equations are used to calculate the major pressure or head loss due to friction in pipes, ducts, or tubes. Formula: h = fLvΒ²/2Dg Where: h - is the head loss f - is the friction factor L - is the pipe length D - is the pipe diameter v - is the flow velocity g - is the acceleration of gravity Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Boiler Efficiency4 screens
Darcy Weisbach Equations Calc4 screens

Verdict

The call

The clearest difference is update cadence: Boiler Efficiency at every 10 months against Darcy Weisbach Equations Calc's every 26 months. Darcy Weisbach Equations Calc's advantage is price ($2.99 vs $5.99). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Boiler Efficiency costs $5.99 and Darcy Weisbach Equations Calc $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Boiler Efficiency ships an update every 10 months, Darcy Weisbach Equations Calc every 26 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard2 real differences Β· 6 level
Boiler Efficiency versus Darcy Weisbach Equations Calc: the parameters behind the verdict, then further details
ParameterBoiler EfficiencyDarcy Weisbach Equations Calc
Price$5.99$2.99 β€” better
Positive reviews0.0% of reviews0.0% of reviews
Update frequencyEvery 10 months β€” betterEvery 26 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS14.313 β€” better
Further details β€” not scored
Size2 MB1 MB
Age rating4+4+
DeveloperKaup Shenoy AssociatesNitrio

Customer experience

Boiler Efficiency

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Darcy Weisbach Equations Calc

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Boiler Efficiency

No in-app purchases

None

Darcy Weisbach Equations Calc

No in-app purchases

Questions

Is Boiler Efficiency free?
Boiler Efficiency costs $5.99, with no in-app purchases.
Is Darcy Weisbach Equations Calc free?
Darcy Weisbach Equations Calc costs $2.99, with no in-app purchases.
Do Boiler Efficiency or Darcy Weisbach Equations Calc have ads?
Neither Boiler Efficiency nor Darcy Weisbach Equations Calc shows ads.
Which is updated more often, Boiler Efficiency or Darcy Weisbach Equations Calc?
Boiler Efficiency ships an update every 10 months, and Darcy Weisbach Equations Calc every 26 months. Most recently, Boiler Efficiency was updated on November 1, 2026 and Darcy Weisbach Equations Calc on November 6, 2026.

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