Engineering Calculator – HVAC, District Cooling, Mechanical & Civil
Practical engineering calculators for HVAC, air-conditioning, district cooling, chilled-water systems, civil works, concrete, steel, pipelines, pumps, flanges, bolting, welding, painting, insulation and site estimation.
Important: Results are for preliminary engineering and estimating only. Final design, sizing, torque, welding, pressure testing, coating, structural and equipment decisions must follow approved drawings, manufacturer data, project specifications, applicable codes and competent engineering review.
Cooling Load, AC Capacity & CHW Calculators
AC Capacity Estimator – Residential / Commercial
Enter space details.
Simplified preliminary estimator only; use a formal heat-load calculation for final design.
Get commercial cooling / chiller advice from Element Folio →Commercial / District Cooling Connected Load
Enter area and load assumptions.
Discuss district cooling / ETS requirements →TR ↔ kW ↔ BTU/hr
Enter TR.
Chilled Water Flow Rate
Enter TR and ΔT.
Cooling Capacity from CHW Flow
Enter flow and ΔT.
Required Number of Chillers
Enter capacities.
Approximate Supply Airflow
Enter capacity.
Heat Exchanger Duty
Enter flow and ΔT.
Get PHEX / ETS advice →Concrete, Plinth, Excavation & Rebar Calculators
Equipment Plinth / Concrete Base
Enter dimensions.
Rebar quantity is an estimating allowance only. Structural reinforcement must follow approved design drawings.
Get plinth / equipment base advice from Element Folio →Concrete Slab Volume
Enter slab dimensions.
Circular Pedestal / Foundation
Enter dimensions.
Excavation Volume
Enter dimensions.
Rebar Weight
Enter diameter and length.
Approx. kg/m = d² / 162
Formwork Area – Rectangular Plinth
Enter dimensions.
Steel Weight & Fabrication Calculators
Carbon Steel Pipe Weight
Enter pipe dimensions.
Get pipeline fabrication advice →Steel Plate Weight
Enter dimensions.
Round Bar Weight
Enter dimensions.
Flat Bar Weight
Enter dimensions.
Element Folio welding & fabrication →Pipe, Flow, Pressure & Thermodynamics
Pipe Velocity
Enter flow and diameter.
Pipe Water Volume
Enter diameter and length.
Pipe External Surface Area
Enter OD and length.
Pressure Converter
Enter bar.
Static Water Head ↔ Pressure
Enter water head.
Thermal Energy – Water
Enter mass and ΔT.
Steel Pipe Thermal Expansion
Enter values.
Reynolds Number
Enter values.
Bolt Torque & Stress Estimators
Bolt Torque Estimator
Enter bolt diameter and preload.
Do not use this value as an approved field torque. Final torque must follow the applicable flange, gasket, bolt material, lubrication condition, approved bolting procedure and project specification.
Get flange & bolting advice from Element Folio →Bolt Tensile Stress
Enter load and area.
DFT, WFT & Paint Quantity Calculators
DFT / WFT Calculator
Enter DFT and solids.
Theoretical Paint Coverage
Enter coating values.
Add allowances for practical losses, geometry, overspray and manufacturer recommendations.
Get coating advice from Element Folio →Heat Input, NDT & Weld Quality Calculators
Welding Heat Input
Enter welding parameters.
Element Folio welding & fabrication services →NDT Quantity
Enter joint quantity.
Weld Rejection Rate
Enter inspection results.
PUF & Cladding Calculators
PUF Insulation Quantity
Enter dimensions.
Element Folio field-joint insulation services →Cladding Area
Enter insulated OD and length.
Man-Hours, Pipe Lengths & Progress
Man-Hours Calculator
Enter crew, hours and days.
Commercial Pipe Lengths
Enter lengths.
Project Progress
Enter quantities.
Material Wastage Addition
Enter quantity and wastage.
Related Element Folio Services
Get Expert Advice from the Element Folio Engineering Team
Need assistance with cooling-load estimation, district cooling, CHW pipe sizing, equipment plinths, steel quantities, flange bolting, welding, coating, insulation, pressure testing, shutdown planning or specialist mechanical works? Send your requirement to Element Folio for practical engineering and site support.
Ask Element Folio Engineering Team