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Proven Results

AFR Rich-to-Lean

March 1, 2026

The Challenge

Industrial engines are typically large, noisy, and maintenance‑intensive, with many operating at higher‑than‑necessary fuel rates and emissions levels. Poor air‑fuel ratio control limits an engine’s ability to run efficiently across varying loads and operating conditions, often preventing full‑load operation and increasing wear.
The Solution

The Solution

Spartan Controls implemented REMVue® AFR Rich‑to‑Lean conversion, delivering precise, dynamic air‑fuel ratio control across the engine’s full operating range. The solution integrates accurate air‑fuel control, IntelliSpark ignition with dynamic timing, and governor and process load management to optimize engine and compressor performance.
 
REMVue® AFR also provides built‑in safety shutdown capabilities, enabling stable and reliable operation under varying conditions. By continuously optimizing combustion, the system improves efficiency, reduces emissions, and enhances overall engine responsiveness and control.

The Value

The REMVue® AFR solution delivered measurable economic and operational benefits:
 
  • 5–12% fuel gas savings, reducing operating costs
  • Improved engine reliability, enabling stable operation across a wider load range
  • Reduced NOₓ emissions, supporting current and anticipated MSAPR compliance
  • Improved overall asset performance, increasing productivity and uptime
  • Quick return on investment, driven by lower fuel costs, reduced maintenance, and higher operating efficiency