Combustion, Fire, and Plasma Systems | Apply Online

Opportunity Summary:

The National Science Foundation (NSF) Combustion, Fire, and Plasma Systems program is a discretionary grant opportunity within the Engineering directorate (CFDA 47.041) that funds fundamental research and associated education activities centered on combustion, fire phenomena, and certain areas of plasma science. The core aim is to build broad, basic knowledge rather than to develop near-term, deployable technologies. The program emphasizes work that advances engineering science and produces broadly useful methods or insights that other researchers and developers can later apply to practical systems, such as cleaner combustion devices, safer built environments, or improved plasma-based manufacturing and materials processing. NSF highlights societal outcomes that can ultimately flow from this foundational work, including cleaner global and local environments, improved public safety, stronger energy and homeland security, new or improved materials, and more efficient manufacturing.

A defining feature of this program is its focus on cross-cutting tools and understanding that generalize beyond a single application. Competitive projects often develop or significantly improve computational models, experimental approaches, or diagnostic techniques that can be reused across many combustion, fire, and plasma problems. The plasma portion of the program is also scoped: plasma research here is generally oriented toward plasma processing, while atmospheric science plasmas and fusion energy plasmas are typically funded through other NSF programs. That distinction matters for fit, since proposals focused primarily on fusion or atmospheric plasma physics may be redirected elsewhere.

The technical areas of interest are broad and include gas, liquid, and solid combustion across multiple configurations such as premixed, non-premixed, partially premixed, and flow-reactor systems. The program supports studies of laminar and turbulent combustion spanning a wide range of temperatures, pressures, and length scales, including fundamental work on flame structure, stability, and dynamics. It also welcomes research on the coupled structure and dynamics of flames and plasmas, which can include plasma-assisted combustion concepts when the work is framed as fundamental science rather than device development. Additional topics include the underlying science needed to enable domestically sourced alternative fuels, as well as fire-related fundamentals such as flame spread, inhibition, suppression, and the mechanisms that govern how fires start, grow, and can be controlled. On the plasma side, NSF calls out atmospheric-pressure plasmas and emerging plasma processing approaches relevant to biotechnology, material synthesis, and other industrially relevant processing methods, again with an emphasis on foundational understanding.

Environmental and climate-relevant research is included when it is directly tied to combustion, fire, or plasma systems. This includes mitigation of combustion-generated pollution (for example, the formation pathways and control-relevant chemistry of soot or NOx) and basic climate change technology research that is clearly grounded in these systems. The program also encourages projects at intersections with nanotechnology (such as nanoparticle formation in flames, nanomaterial synthesis using combustion or plasma processes, or nanoscale diagnostics), projects that integrate combustion and plasma science in a way that genuinely contributes to both fields, and projects that help build cyberinfrastructure for scientific information technology in these domains (for example, data standards, shared databases, validated models, or workflows that improve reproducibility and reuse).

NSF places explicit proposal-writing expectations on applicants. Proposals should clearly explain what is novel relative to prior work, why that novelty matters for engineering science, and what the potential downstream impact could be on society and/or industry if the research succeeds. At a minimum, those points are expected to appear in the Project Summary, meaning reviewers should be able to quickly see the intellectual advance, its scientific importance, and its broader relevance without hunting through the full narrative.

In terms of funding structure, the program historically anticipated around 28 awards with an estimated total funding level of about $5.1 million for the referenced cycle. Unsolicited research awards are generally 1 to 3 years in duration, with an average annual award size around $90,000. The opportunity also notes an award floor of $270,000, which aligns with typical multi-year totals for standard awards. Small equipment proposals under $100,000 can be considered, but they must be submitted during the designated proposal windows. Proposals submitted outside the announced submission windows are returned without review, so timing is treated as a strict compliance issue rather than a preference.

The standard annual submission windows listed for this opportunity are February 1 to March 1 and August 15 to September 15 (due by 5 p.m. local time for the proposer). CAREER proposals follow the NSF-wide Faculty Early Career Development (CAREER) Program rules, run for five years, and in Engineering typically have a July deadline each year. Conference, workshop, and supplement proposals may be submitted at any time, but they require prior discussion with the program director before submission. The same pre-discussion requirement applies to RAPID and EAGER proposals (which replaced the older SGER mechanism), and applicants are directed to the NSF Proposal and Award Policies and Procedures Guide (PAPPG) for the governing details.

Eligibility is listed as unrestricted, meaning the opportunity is open to any type of entity as permitted by NSF policy and any clarifications in the full announcement. The funding instrument is a grant, cost sharing is not required, and the agency contact guidance points applicants to NSF Grants.gov support for access issues. The posted opportunity referenced here is archived and noted as having been replaced by a later program description (12-1407), which is important for applicants because current submissions generally must follow the most recent NSF program description and the current PAPPG, even when older descriptions provide useful context about program scope and priorities.

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