PhD Position in Nuclear Power: Modelling Flexible Operation of Small Modular Reactors Alongside Wind and Solar

PhD Position in Nuclear Power: Modelling Flexible Operation of Small Modular Reactors Alongside Wind and Solar

This doctorate asks whether nuclear generation can respond more usefully alongside variable wind and solar without treating the reactor and its power-conversion system as independent. The advertised work compares advanced power cycles with or without thermal storage, using transient numerical models and load-following scenarios. It is a concrete opportunity for a physics or mechanical-engineering graduate who already has substantial thermodynamic modelling experience. Vacancy 3936 lists 15 November 2026 as the submission date and a conditional four-year employment route. Submit a focused CV and motivation letter through the official online application. University vacancy record

A mandatory OCW knowledge-embargo exemption must be obtained before an employment contract is agreed. TU Delft also performs its own knowledge-security assessment during final selection. These are substantive conditions. They do not establish a blanket exclusion of Chinese applicants, nor does an applicant's not yet having an individual exemption mean they cannot begin the advertised application process. Personal clearance, degree equivalence and immigration remain separate decisions. The actual start date and deadline closing time remain unresolved.

Research Problem and Doctoral Work

Variable renewable generation creates a need for flexible low-carbon energy systems. This project examines nuclear power conversion as one possible contributor, rather than assuming that every small modular reactor already offers the required response. The announcement describes SMRs as below 300 MWe and proposes studying improved load-following through the power cycle and possible thermal storage. Its performance statements are the rationale for investigation, not independently established outcomes for every design.

The doctoral researcher would compare cycles with and without storage, couple transient power-cycle modelling with reactor modelling to examine feedback, and study different load-following scenarios to identify technologically feasible improvement. Retaining these distinctions matters: a favourable steady-state efficiency is different from an acceptable transient response, and a fast response of one subsystem does not establish the behaviour of the coupled system. No particular reactor design, operating parameters, storage material, software package, grid dataset or experimental programme is assigned publicly.

At the level of research planning, useful questions include how competing performance criteria are defined, which assumptions constrain a comparison, and how numerical results would be checked. Verification, uncertainty and the limits of transferring findings across scenarios are analytical preparation suggestions. They are not promised work packages or operating instructions. The expected scientific value is a defensible comparison and understanding of constraints; the announcement does not promise construction, licensing or commercial deployment.

The working environment is Process & Energy in Mechanical Engineering, with collaboration involving Reactor Institute Delft. The candidate is expected to take the initiative in collaboration with other TU Delft researchers, other universities, industry and stakeholders. The precise division of supervision, modelling resources and access permissions still needs agreement. This is broader than solitary software work, but it does not establish a guaranteed industrial placement or access to a reactor facility.

School, Field and Training

Delft University of Technology is the advertised employer and the university awarding the doctorate. The relevant department is Process & Energy, within the Faculty of Mechanical Engineering. Its Energy Technology section researches thermal energy-conversion systems and their modelling, with a stated group of approximately 35 scientific staff and 40 MSc students. Those are broad environment figures, not available PhD places or a measure of this supervisor's capacity. The collaboration with Reactor Institute Delft does not imply a joint degree. Relevant thermal-energy research environment

TU Delft is 48th in the QS World University Rankings 2027. This is an overall university ranking; a directly verified ranking of the nuclear-thermal group or this project was not established. The more relevant evidence is the connection between the vacancy's transient-system question, the department's thermal expertise and the contact's research. QS ranking and edition

The faculty describes a programme combining doctoral research and Doctoral Education, aimed at completing the thesis within four years. A successful dissertation defence leads to a doctorate from TU Delft. The programme page describes 45 credits; the detailed ME rule specifies at least 45 GS credits, with at least 15 in each of discipline-related, research and transferable skills. Course selection and learning-on-the-job activities are agreed with the supervisor. The ME Graduate School checks completion, and Doctoral Education approval is required before proceeding with defence preparations. The detailed rules use GS credits; a conversion to ECTS has not been established. Doctoral programme and award ME training requirements

Contact and Recent Original Research

The named contact is Dr ir Jurriaan W.R. Peeters, j.w.r.peeters@tudelft.nl. His current official profile identifies him as an associate professor since 2023, with a shift toward advanced nuclear-energy technology in 2025. He completed his PhD in 2016 and became an assistant professor at TU Delft in 2018. The profile distinguishes him from older biographies and other researchers named Peeters. The full formal promotor and daily-supervision team is not named in the vacancy. Current staff profile

Evidence on three recent formal studies is limited to complete primary abstracts and ordered bylines, plus bibliographic and correspondence details where available, and selected body passages. It does not cover complete Methods–Results–Conclusions sets or supplementary materials. These papers demonstrate methodological background, rather than results already obtained for this nuclear-flexibility project.

1. Thermal-cycle trade-offs. Thermodynamic analysis and heat exchanger calculations of transcritical high-temperature heat pumps, Energy Conversion and Management 303 (2024), 118172, DOI 10.1016/j.enconman.2024.118172, online 13 February 2024. Ordered authors: An Zhao; Rene Pecnik; Jurriaan W.R. Peeters. Peeters is last; Zhao is corresponding. The work compares industrial heat-pump cycles while considering thermodynamic performance and heat-exchanger size. Its relevance is that an apparently favourable performance measure can change when component requirements are considered. It concerns industrial heat pumps, not nuclear load-following, and does not validate the proposed coupled reactor model. Final primary article

2. Modelling and verification of heat transfer. Data-driven optimization of rough surfaces for convective heat transfer enhancement, International Journal of Heat and Mass Transfer 251 (2025), 127313, DOI 10.1016/j.ijheatmasstransfer.2025.127313. Ordered authors: Rafael Diez Sanhueza; Jurriaan W.R. Peeters. Peeters is second; Sanhueza is corresponding. The study combines a machine-learning approach with direct numerical simulations to compare heat-transfer surfaces, and shows that favourable choices depend on flow conditions. It illustrates the need to check model predictions and their domain of applicability. It does not make machine learning a requirement for this PhD or demonstrate performance of a nuclear component. Complete institutional abstract and roles

3. Computational feasibility. A pencil-distributed finite-difference solver for extreme-scale calculations of turbulent wall flows at high Reynolds number, Computer Physics Communications 316 (2025), 109811, DOI 10.1016/j.cpc.2025.109811. Ordered authors: Rafael Diez Sanhueza; Jurriaan Peeters; Pedro Costa. Peeters is second; corresponding authorship was not verified. The primary final-publication abstract reports scalability tests and a faster solver at large computational scales. Its relevant lesson is that communication and numerical cost can constrain a simulation campaign. It does not establish that this doctorate needs the same computing scale, or that the candidate has an allocation on the benchmark machines. The preprint is not counted as another original. Complete primary repository abstract

Employment, Fees and Living Costs

The vacancy describes four years in principle, through an initial 18-month contract, an official go/no-go assessment within 15 months, and a further 30 months if progress and performance meet requirements. It quotes €3,204–€4,051 gross per month from the first to fourth year on a 38-hour full-time basis, plus 8% holiday allowance and 8.3% year-end bonus. The general metadata also lists 36–40 hours and 1.0 FTE; the offer should settle the exact appointment. These are advertised gross rates, not a net-income calculation or a promise that future collective-agreement rates cannot change.

The central PhD policy distinguishes a regular departmental employment position from a doctorate requiring the candidate's own funding. It lists an €11,000 contribution per entire PhD programme, plus an annual bench contribution determined by facilities used. It says the bench fee is charged to the institute when institute-funded, and says agreements on amounts and payees are recorded at the start of the PhD programme, preferably before the first working day; faculties may waive fees. This does not justify charging the candidate an MSc international tuition rate or claiming a personal fee waiver has already been issued. For this salaried position, no specific uncovered personal fee was established. The written allocation of any training and bench contributions remains an item to settle before accepting. Central fee and funding categories

The university's HR budget example is explicitly dated September 2023 and concerns a starting postdoc living outside central Delft with a non-working partner and two children. Its monthly totals are €1,347 housing, €256 insurance and €1,020 other living costs, or €2,623 combined, before optional childcare. It is useful for identifying expense categories, not as a current single-person PhD budget or a 2026/27 rental quotation. Subtracting this household's spending from the advertised gross salary would not produce meaningful guaranteed savings. HR explicitly recommends obtaining a personal net-salary calculation. Dated HR budget and household assumptions

Housing guidance describes a highly competitive market and suggests considering Delft and surrounding commuting locations. Relocation information and partner-career support do not guarantee a room or a partner's employment. Allow for deposits, arrival expenses and the interval before the first salary; actual rent, utilities, insurance and commuting require current quotations. Housing support and supply constraints

Eligibility and Application

The vacancy requires an MSc in physics, mechanical engineering or a similar field, ample thermodynamic-system modelling experience, particularly transient modelling, affinity with thermodynamics and transport equations, interest in transient analysis and the nuclear industry's societal role, and communication and multidisciplinary teamwork. Heat pumps or power cycles are examples of relevant experience. Nuclear interest is also described as a plus in the first item; the later interest requirement remains. A prior nuclear degree, fixed software package or machine-learning portfolio is not specified.

Central admission accepts a Dutch Master's or a foreign equivalent and relevant theoretical/methodological knowledge. No China-specific percentage threshold was verified. TU Delft’s central admission page lists these English routes: IELTS Academic 7.0, each section 6.5; TOEFL from 21 January 2026: 5 overall, each 4.5; earlier tests: 100 overall, each 22, in one test, without MyBest; or Cambridge C1 Advanced/C2 Proficiency overall 185. Results must be within two years, with the page illustrating validity at appointment. IELTS Online and Indicator are not accepted; One Skill Retake is accepted where available. Results can be requested later in selection rather than with the initial application. Native speakers and English-taught Master's graduates are in principle exempt, although a candidate may still be asked to take an on-site Delft placement test. Current central admission and English rules

Apply online with CV and motivation letter, addressed to Peeters, by 15 November 2026. Email is for enquiries, not submission. The vacancy header gives 16 November 2026, while its application procedure says to apply no later than 15 November 2026. The structured time value is 2026-11-15T22:59:59.000Z; prepare by the earlier date and confirm the application system exact closing time. The call does not add a mandatory standalone research proposal or recommendation letters. A useful motivation letter could explain a previous transient model, its assumptions, checks and the applicant's individual contribution; this is suggested preparation, not an extra upload requirement.

The government identifies specified study and research fields for which an OCW exemption is mandatory. Its policy describes an exemption request for anyone who could access the relevant sensitive knowledge. The cited policy and vacancy information do not establish a blanket exclusion based on Chinese nationality. Individual approval still depends on official assessment and cannot be predicted here. The separate TU Delft knowledge-security review uses candidate information at final selection; it is not the same decision as an OCW exemption or residence permission. Current exemption requirement Government policy context University knowledge-security policy

For a mainland Chinese applicant, the IND's non-EU researcher route includes paid researchers and PhD candidates, with a recognised sponsor, appropriate higher education, an approved research project, employment/hosting agreement and sufficient income. The employer applies for the applicable residence permit and MVV; foreign documents may need legalisation and translation. The IND page dated 18 August 2026 gives a €254 application fee paid by the employer by direct debit and a 60-day decision period, which may be extended. This is an available administrative route, not confirmation of an individual's permission or the job's start date. Current IND researcher requirements

Field Outlook and Career Directions

The European Commission's March 2026 SMR strategy and coordination with industry, investors and regulators show active civil-energy research and development. Its early-2030s deployment objective remains a policy ambition. It neither proves this project's results nor establishes employment for graduates. TU Delft lists academic, technology-industry, research-institute and government careers and offers counselling and workshops; no project-specific placement rate was verified. Thermal-system modelling and critical numerical analysis have potential beyond the nuclear sector, while regulated-sector access and employment remain individual matters. Current European policy context Doctoral career support

Next Decisions

Before applying: confirm the closing clock, degree equivalence and practical selection timetable, including how the institution supports the mandatory OCW process. Prepare the two advertised documents with evidence of transient modelling and research fit. An unissued personal exemption is not a reason to assume the vacancy cannot be approached.

At interview: agree the formal supervisory team, high-level comparison and validation goals, available modelling resources, the role of RID collaboration and the training needed to bridge prior experience. Ask how the first 15-month assessment relates to feasible milestones.

Before accepting: obtain the OCW outcome and university assessment, actual start date, appointment hours, contract continuation conditions, fee/payee agreement and any waiver in writing. Ask HR for net pay and relevant insurance, pension, relocation and housing arrangements. The useful decision is whether the research and conditional employment package can be made concrete, without treating an application as a clearance, visa or offer.

Evidence and Sources

The recruitment record is dated 21 October 2026. The three paper assessments draw on complete primary abstracts, ordered bylines and selected body passages; they do not cover complete Methods–Results–Conclusions sections or supplementary materials. Current vacancy availability and individual exemption or knowledge-security outcomes remain unconfirmed.

Project, institution and training

• TU Delft official vacancy 3936
• Jurriaan Peeters current staff profile
• Energy Technology research environment
• ME doctoral programme and award
• ME Doctoral Education requirements
• QS 2027 university ranking

Primary originals

• 2024 thermal-cycle and heat-exchanger original
• 2025 heat-transfer modelling original
• 2025 computational scalability original

Application, funding and practical conditions

• Central PhD entry and English requirements
• Central PhD fees and funding categories
• Government knowledge-embargo exemption requirement
• Government sanctions-policy context
• TU Delft knowledge-security policy
• IND researcher immigration route
• Dated HR household budget
• International-employee housing guidance

Field and careers

• European Commission civil SMR policy context
• TU Delft doctoral career perspectives