---
title: "Heat Exchanger Duty Calc - Reviews, Revenue and Downloads in Denmark | Apple App Store"
description: "Sizing a heat exchanger or verifying duty on an existing unit? Enter hot and cold side temperatures, flow rate, fluid specific heat, and specific gravity. Get instant LMTD, heat duty in BTU/hr, UA pro"
---

# Heat Exchanger Duty Calc — Denmark
> LMTD BTU Thermal Design Tool

![Heat Exchanger Duty Calc App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/f6/8d/97/f68d9743-a7e6-9434-3ba9-ab5eb1b492f0/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Shanghai Sheyuan Network Technology Co](https://apptail.io/developer/shanghai-sheyuan-network-technology-co-mkXe)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.sy.heatexchangerduty
**Store:** Apple App Store
**Country:** Denmark
**Version:** 1.0.3 (released 2026-06-28)
**Original Release:** 2026-04-08
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/dk/app/app/id6761745524)
**AppTail Page:** [https://apptail.io/app/heat-exchanger-duty-calc-ObjB/denmark](https://apptail.io/app/heat-exchanger-duty-calc-ObjB/denmark)

## Heat Exchanger Duty Calc Description
Sizing a heat exchanger or verifying duty on an existing unit? Enter hot and cold side temperatures, flow rate, fluid specific heat, and specific gravity. Get instant LMTD, heat duty in BTU/hr, UA product, and thermal effectiveness for both counter-flow and parallel-flow configurations.

WHAT IT CALCULATES:
- Log Mean Temperature Difference (LMTD)
- Heat duty in BTU per hour
- UA product (overall heat transfer coefficient times area)
- Thermal effectiveness (actual vs maximum possible heat transfer)

FLOW CONFIGURATIONS:
- Counter-flow (hot and cold fluids flow in opposite directions)
- Parallel-flow (hot and cold fluids flow in the same direction)

INPUTS:
- Hot side inlet and outlet temperatures
- Cold side inlet and outlet temperatures
- Flow rate (GPM)
- Fluid specific heat (Cp)
- Fluid specific gravity

KEY FEATURES:
- Counter-flow and parallel-flow support
- Instant results as you adjust inputs
- Clean, field-friendly interface
- Works completely offline
- No account or login required

Built for process engineers, mechanical designers, and plant operators who need quick heat exchanger performance calculations during design, commissioning, or troubleshooting.

## Heat Exchanger Duty Calc Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/56/39/fc/5639fc9f-f3bc-7692-7544-efdcf215b0a2/screenshot_iphone_1.jpg/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8d/7e/35/8d7e35b6-98a6-da15-a87d-1c7f52a22ba5/screenshot_iphone_2.jpg/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ac/d8/20/acd82052-d50a-cc6b-bdce-998046e8ab1e/screenshot_iphone_3.jpg/1284x2778.png)




## Heat Exchanger Duty Calc Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Denmark | Utilities | #21 |
| Top Paid | Denmark | Overall | #142 |




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