---
title: Why We Custom Design Every Turbocharger - FEDCO
description: "Turbochargers are simple machines but represent a daunting hydraulic design challenge: Design the turbine end to create a pressure differential to match the brine flow and pressure duty point; Design the turbine with a best efficiency point (BEP) that matches duty brine flow; Design the pump end with the BEP matching the duty point feed … Why We Custom Design Every Turbocharger Read More »"
---

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# [Why We Custom Design Every Turbocharger - FEDCO](https://www.fedco-usa.com/white-papers/why-we-custom-design-every-turbocharger)

 Written by [rlkuckuck](https://www.fedco-usa.com/white-papers/author/rlkuckuck) | Jan 7, 2020 5:00:00 AM

Turbochargers are simple machines but represent a daunting hydraulic design challenge:

- Design the turbine end to create a pressure differential to match the brine flow and pressure duty point;
- Design the turbine with a best efficiency point (BEP) that matches duty brine flow;
- Design the pump end with the BEP matching the duty point feed flow;
- Make sure that the pump impeller absorbs exactly the correct amount of power provided by the turbine at exactly same rate of shaft rotation.

Figure 1 shows a turbo with great component BEP efficiency (92% pump and 89% turbine) but with poor alignment between BEP flows and duty flows. In addition, the turbine differential pressure is different from the required brine backpressure. The pressure mismatch represents up to a 10% loss of available energy recovery.

[ <img src="https://f.hubspotusercontent30.net/hubfs/9335731/Imported_Blog_Media/Why-custom-figure-1-300x261-1.png" class="attachment-medium size-medium" alt="" srcset="https://f.hubspotusercontent30.net/hubfs/9335731/Imported_Blog_Media/Why-custom-figure-1-300x261-1.png 300w, https://f.hubspotusercontent30.net/hubfs/9335731/Imported_Blog_Media/Why-custom-figure-1-1.png 665w" sizes="(max-width: 300px) 100vw, 300px" width="300" height="261"> ](https://www.fedco-usa.com/hubfs/Imported_Blog_Media/Why-custom-figure-1-1.png) Figure 1

Figure 2 shows the same duty conditions but with performance curves that match the design requirements resulting in greater feed pressure boost.

[ <img src="https://f.hubspotusercontent30.net/hubfs/9335731/Imported_Blog_Media/Why-custom-figure-2-300x224-1.png" class="attachment-medium size-medium" alt="" srcset="https://f.hubspotusercontent30.net/hubfs/9335731/Imported_Blog_Media/Why-custom-figure-2-300x224-1.png 300w, https://f.hubspotusercontent30.net/hubfs/9335731/Imported_Blog_Media/Why-custom-figure-2-1.png 711w" sizes="(max-width: 300px) 100vw, 300px" width="300" height="224"> ](https://www.fedco-usa.com/hubfs/Imported_Blog_Media/Why-custom-figure-2-1.png) Figure 2

###### The Power of FEDCO Customization

 Given enough testing and redesigns, a given turbocharger can obtain good balance of high component efficiencies that hydraulically match the RO system requirements.

 <img src="https://f.hubspotusercontent30.net/hubfs/9335731/Imported_Blog_Media/2019-11-21-15_42_51-scaled-e1577976411524-oj2wszq7orlvcvlam3dkaeatwalzshlrhfg95ad6v6-1.jpg" title="2019-11-21 15.42.51" alt="2019-11-21 15.42.51">

###### The challenge is getting it right the first time every time.

FEDO has met the challenge through the development of a suite of proprietary design and manufacturing computer programs. A customer’s RO duty point conditions are transformed into detailed hydraulic designs and then into machine program downloaded to the shop floor within a matter of hours.  
And that is why FEDCO can have a fully customized turbocharger tested to duty conditions on the loading dock faster than other suppliers can ship a pump picked from a catalog.

 <img src="https://f.hubspotusercontent30.net/hubfs/9335731/Imported_Blog_Media/2019-11-21-15_40_33-scaled-e1578424331762-ojbxo76xw5gq9vnetetbv5hiq6f7lqrm3bx5ptrkle-1.jpg" title="2019-11-21 15.40.33" alt="2019-11-21 15.40.33">

[View full post](https://www.fedco-usa.com/white-papers/why-we-custom-design-every-turbocharger)

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