Opinion
Dankwanbo: The Redeemer Cometh?
Published
8 years agoon
By
Eric
Ikechi Emenyonu
The meeting was so guarded it could have passed for the conclave of the cardinals in search of a Pope. It certainly was not a conclave of cardinals to elect a Pope. But it came very close. All, governors, serving and old, former ministers, elders of the party, professionals, respected public analysts as well as intellectuals and sundry public-spirited individuals who had been carefully selected across all divides, drove themselves to the meeting venue and left their security details in another venue. The session was intense and furious. In an attempt by different wings of the Nigerian elite to find who can lead the country to the future, this kind of nocturnal gatherings was expected. But nothing has probably ever come close to this high-level meeting as witnessed in Abuja that day.
For Nigeria, at least, the good news is that there is a serious search by the elite for a credible alternative to what many would consider the best turned the worst for Nigeria, one that has dashed hopes and smashed beliefs to smithereens. For the opposition, members of which actually convened this conclave, it is even much more. This is the time to retool for Nigera’s progress and remind Nigerians of the party of Alex Ekwueme, the G-18, the G-34, the party of Sunday Bolorunduro Awoniyi, the party of Isyaku Ibrahim, Shehu Yar’Adua, Umaru Yar’Adua Theophilus Danjuma, Solomon Lar, Audu Ogbeh (now in APC), the party that united all Nigerians. So, the meeting was to find a way of sending this message to Nigerians: the party that took Nigerians for granted is now ready to redeem itself and give the nation a purposeful leadership of knowledge and competence.
And the conclusion was that the kind of presidential candidate presented by the PDP for the next election would make or mar the party. Hence the seriousness of secrecy that day last week and the banishment of emotions, status and frivolities. Now, the opposition Peoples’ Democratic Party, PDP, has not come out with a presidential candidate Nigerians across all divides can relate to or identify with but the search may have been narrowed down to a few persons. Atiku Abubakar, the perennial and perpetually mobile candidate, who is well acknowledged as being well prepared as former vice president and an ideas man, is on the stumps.
Sule Lamido, former governor of Jigawa State is on the discussion table. Of course, there are others, currently in the ruling All Progressives Congress, APC, who are being speculated on account of their political origins, as likely PDP candidates. But at the meeting in Asokoro District of Abuja last week, the name that dominated all discussions was Ibrahim Hassan Dankwanbo, current governor of Gombe State and perhaps the most successful Accountant-General of the Federation Nigeria has ever had the benefit of his service. And as the world moves towards knowledge-driven and astute leadership, in the matter of Nigeria’s future leadership, Ibrahim Dankwanbo’s name and life journey so far gave that meeting some serious food for thought.
Is he the breath of fresh air Nigeria needs now? In addition to his intimidating credentials as a professional, a technocrat, a financial expert and a political leader with a wide reach across Nigeria, he is young, at 56, and has the kind of worldview the nation needs now. Ibrahim Hassan Dankwambo, was born on April 4, 1962 at Herwagana Ward in Gombe town, Gombe State. He attended Central primary school, Gombe and Government Secondary School Billiri in Gombe State. He proceeded to Ahmadu Bello University, Zaria and graduated with Bachelor of Science degree in Accounting second class (honours) upper Division, being the second best result obtained by any individual in the then Bauchi State. He further enrolled for Masters of Science Degree, in Economics from University of Lagos. Dankwambo was not satisfied with academic pursuit, he decided to study Post Graduate Diploma in Computer Science at the Delta State University Abraka, Delta State. He finally caps it up with a Doctor of Philosophy Degree (Phd) from Igbinedon University, Okada.
Professionally, Dankwambo has proved to be exemplar. He has passed through the qualifying examinations of seven (7) professional bodies and consequently was awarded membership of those professional institutions. He passed the examinations of the prestigious Institute of Chartered Accountants of Nigeria (ICAN) and qualified as a Chartered Accountant only a year after his graduation from the university, a feat most professional chartered accountants will agree is rare to achieve. Today he is a Fellow of the Institute of Chartered Accountants of Nigeria (FCA), a Fellow of the Chartered Institute of Bankers (FCIB), a Fellow of the Chartered Institute of Taxation (FCIT), a Fellow of Nigerian Institute of Management (FNIM) and a Fellow of the Nigerian Economic Society (FNES).
APC will win more states in 2019 —Muazu
Alhaji Dankwambo has had various international exposures by attending training programmes, which further molded and shaped him as a refined and seasoned Accountant, Economist and an Administrator. He started his career at the firm, Coopers and Lybrand International, (Chartered Accountants), now PriceWaterHouseCoopers where he was from 1985 to 1988. He later joined the Central Bank of Nigeria in 1988 and was there until 1999, The then governor of Gombe State, Alhaji Abubakar Habu Hashidu spotted the unique qualities in Dankwanbo and appointed him the Accountant-General of Gombe State. He held this position until April 20, 2005 when the then Accountant General of the Federation Mr J.K Naiyeju was retiring. Again the unique qualities of Dankwambo became obvious to all, having served at various committees at the Federation Account and President Olusegun Obasanjo, who noticed his brilliance as well as efficiency appointed him the Accountant-General of the Federation, the position he held until he was overwhelmingly elected the governor of Gombe State. Dankwambo has chaired and served in committees as well as served as board member of some government parastatals at various times.
He was the president/chairman of the forum of Accountants-General and Auditors-General in West Africa (FAAGWA), and had earlier served as the Protem Secretary of the same organisation, He was the co-chairman, standardisation of federal, state and local government accounts in Nigeria, a body formed by the Federation Account Allocation Committee (FAAC) to harmonise the Accounting and Reporting of Financial Statements by the three tiers of government. On assumption of office as the Accountant-General of the Federation, he became the Chairman of the Technical Sub-Committee of the FAAC, a committee saddled with the responsibility of determining how the national revenues are shared equitably amongst the three tiers of governments, that is, the federal, state and local governments. He discharged himself creditably and earned the respect of all. Dankwambo was also the chairman of the Audit Committee of ECOWAS, a board member of the Central Bank of Nigeria, board members of the debt management office. On the international scene, he was a board member, Royal Swaziland Sugar Company, Southern Africa and member of the board of Extractive Industries Transparency International. He also sat on the board of many successful companies across a wide spectrum of the nation’s or world economy.
Dankwambo’s reign as the Accountant-General of the Federation brought about very laudable unique and revolutionary reforms to the Office of the Accountant-General of the Federation which includes the following;
The Integrated Payroll Personnel Information System (IPPIS) is yet another giant stride achieved by Dankwambo as salaries of Staff all over the Ministries, Departments and Agencies (MDA’s) started being paid centrally, using an automated system.. This eliminated the complaints of delayed payment of salaries by MDA’s and ghost workers’ syndrome got minimised. Nigerians applaud Treasury Single Account (TSA) today, but they need to know the real hero behind it. Dankwambo, as Accountant-General of Nigeria was the one who ensured that he completed the institution of Treasury Single Account which is simply an account or set of linked accounts through which government transacts its financial operations in such a way that its financial position can be determined easily for the facilitation and timely reconciliation of cash balances.
In his quest to evolve a very robust financial management system of the Federal Government he worked tirelessly to install a financial management system called the Government Integrated Financial Management System (GIFMIS). This is an ICT integrated system, which computerises the Public Financial Management processes from budget preparation, execution, accounting and reporting.
On assumption of office as the Accountant-General of the Federation, centralisation of Capital Accounts was a challenge to Dankwanbo. This centralisation had caused delays in implementing projects at the federal level. Dankwambo ensured that this centralisation was removed, thereby enabling ministries, departments and agencies to process and make payments for contracts awarded after obtaining due certification for the projects. Other reforms he embarked upon included the New Chart of Accounts, the Accounting Transactions Recording and Reporting System (ATRRS), which removed the stress of having to prepare and carry hard copies of Accounts by Ministries Departments and Agencies (MDA’s) to the Office of the Accountant-General of the Federation for Consolidation. The International Public Sector Accounting Standards Board (IPSASB) gap analysis was one effort by the Alhaji Dankwambo to upgrade the preparation and reporting of Nigeria’s Financial Statements up to International Standards.
He also embarked on the upgrading of the federal treasury academy to university standard for the training of Public Sector Accountants and affiliating it to a highly recognised public sector professional body in the United Kingdom, (the Chartered Institute of Public Finance and Accountancy (CIPFA) United Kingdom). On assumption of office, one of the responsibilities he was saddled with was the payment of severance benefits to members of staff of some erstwhile government parastatals and companies that were either privatised or were in the process of being privatised. Some of these included Nigeria Airways, Nigerian Telecommunications Company (NITEL), Nigeria Ports Authority (NPA) and many others. The office, under his leadership, also undertook successfully the payment of severance benefits to all right-sized employees of federal ministries, departments and agencies, as well as payment of pensions nationwide. He discharged all these creditably.
As governor of Gombe State, Dankwanbo has distinguished himself in the areas of education, which was his first, second and third priority, the provision of infrastructure, healthcare, water supply, environmental degradation control and economic empowerment. He is the first governor to create a cogent development plan for Gombe State and has gone ahead to implement the plan, thereby putting the state on the right track for sustainable development. An uncommon visionary, he is also the governor who conceived of a Marshal Plan for the development of the North-east and organised the Northeast Economic Summit (2013) to bring the plan into a regional development blueprint acceptable to all stakeholders, which is to bring about economic growth and permanently check the security challenges in the North-East sub-region.
A committed and principled politician, he is the one and only PDP second-term governor in the north of Nigeria who successfully stood against the so-called “Buhari Storm” and, as a result of his good governance, prudent financial management, justice, fairness and equity to his people, remained on his political platform to win re-election. As a banker, he set so much store of winning the people’s trust, as was in the days of the bankers of old, that he could be described as one of the real bankers, a sure banker or a man Nigerians can bank on.
Ikechi Emenyonu writes from Abuja
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Opinion
PDP Crisis: Illegal Factional Convention is a Direct Assault on Party Constitution and Democracy
Published
6 days agoon
March 29, 2026By
Eric
By Prince Adedipe Dauda Ewenla
The attention of party faithfuls and the general public has been drawn to the desperate and unconstitutional attempt by a faction within the Peoples Democratic Party to foist an illegal National Convention on the party in clear violation of its constitution and established democratic norms.
Let it be stated unequivocally: the Constitution of the PDP is clear, unambiguous, and binding on all members only a duly elected National Working Committee (NWC) has the constitutional authority to convene, approve, and conduct a National Convention.
This position is firmly grounded in the provisions of the PDP Constitution:
1. Section 31(3) clearly vests the power to summon and convene the National Convention in the appropriate constitutional organ of the party, which operates through the National Working Committee.
2. Section 29(2)(a) establishes the National Working Committee as the principal executive organ responsible for the day-to-day administration and decision-making of the party.
3. Section 47(1) affirms the supremacy of the party constitution, making it binding on all members and organs of the party without exception.
Flowing from these provisions, any gathering, meeting, or assembly convened outside this constitutional framework is illegal, null, void, and of no consequence, being ultra vires, null ab initio, and incapable of conferring any legal rights or obligations whatsoever.
The ongoing attempt by a faction reportedly aligned with the Minister of the Federal Capital Territory, Nyesom Wike, to organize a so-called convention through an imposed and illegitimate caretaker structure is nothing but a brazen assault on the rule of law, party supremacy, and internal democracy, and amounts to a clear case of constitutional subversion.
For the avoidance of doubt:
Individuals who have been suspended or expelled from the party lack the locus standi to act on its behalf.
Any caretaker arrangement not constitutionally backed by the elected organs of the party remains a nullity ab initio.
No faction, no matter how powerful, can override the supremacy of the party constitution.
Any purported action taken in furtherance of this illegality is void and liable to be set aside ex debito justitiae by any court of competent jurisdiction.
It is instructive that the Federal High Court and other competent courts have already taken judicial notice of these constitutional breaches by entertaining suits challenging the legality of the proposed convention. This alone is a clear warning that the entire process is fundamentally defective and cannot stand the test of law.
We therefore align firmly and unequivocally with the leadership direction and stabilizing efforts under Kabiru Turaki, whose commitment to constitutional order, due process, and party unity remains the only credible path forward for the PDP at this critical time.
The party cannot and must not be hijacked by individuals driven by personal ambition, vendetta politics, or external influence.
The survival of the PDP as a viable opposition platform depends on strict adherence to its constitution and respect for its legitimate structures.
We warn, in the strongest possible terms, that:
Any convention conducted outside the authority of a duly elected NWC will be resisted and rejected by loyal members of the party.
Any outcome from such an illegal exercise will be treated as void ab initio and will not be recognized within the party or before the Independent National Electoral Commission.
Those promoting this illegality are inviting avoidable chaos, multiplicity of suits, and grave political consequences for the PDP ahead of 2027.
This is not just about a convention this is about the soul, legality, and future of our great party.
I call on all genuine stakeholders to rise above factional manipulation and defend the constitution of the PDP with courage and clarity.
The rule of law must prevail. Fiat justitia ruat caelum. The constitution must stand. The PDP must not fall.
Prince Amb. (Dr.) Adedipe Dauda Ewenla
PDP Southwest Ex-Officio
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Opinion
Intentional Progressive Leadership and Disciplined Security: Catalysts for Unlocking Possibilities
Published
1 week agoon
March 28, 2026By
Eric
By Tolulope Adegoke PhD
In an increasingly interconnected and volatile world, the twin forces of intentional progressive leadership and disciplined security stand as indispensable drivers of meaningful advancement. Intentional progressive leadership is characterized by deliberate, forward-thinking decision-making that prioritizes inclusive growth, innovation, accountability, and long-term societal transformation over short-term gains or entrenched interests. Disciplined security, in turn, refers to a professional, rule-of-law-based, human-centered approach to safeguarding citizens, institutions, and resources—one that integrates military, intelligence, law enforcement, and community engagement while upholding human rights and fostering trust. Together, these elements do not merely maintain stability; they actively unlock possibilities across three interconnected spheres: peoples (individuals and communities), corporates (businesses and organizations), and nation building (state institutions and societal cohesion).
This write-up examines their active roles, portrays the current realities as they stand in Nigeria, Africa, and the wider world, provides relevant global and regional examples, and offers practical, unbiased solutions. Drawing on established patterns of development, the analysis underscores that where these forces converge effectively, they generate exponential outcomes; where they falter, stagnation and fragility ensue. The goal is to present a balanced, evidence-informed perspective suitable for policymakers, business leaders, scholars, and development practitioners internationally.
Defining and Contextualizing the Core Elements
Intentional progressive leadership goes beyond charisma or authority. It demands strategic vision anchored in data, ethical governance, stakeholder inclusion, and adaptive resilience. Leaders in this mold invest in human capital, promote transparency, and align policies with sustainable development goals. Disciplined security complements this by creating the enabling environment of safety and predictability. It emphasizes professional training, intelligence-led operations, community policing, and the rule of law rather than militarization or repression. When these operate in synergy, they transform potential into tangible progress: educated citizens innovate, businesses thrive without fear, and nations build resilient institutions.
Active Roles in Delivering Possibilities for Peoples
For individuals and communities, intentional progressive leadership and disciplined security create pathways to dignity, opportunity, and empowerment. Progressive leaders prioritize education, healthcare, and skills development, viewing people as the primary asset. Disciplined security ensures freedom from fear, enabling daily pursuits of livelihood and aspiration.
In practice, this synergy fosters social mobility and cohesion. Progressive leadership invests in youth programs and vocational training, while disciplined security protects learning environments and public spaces. The result is reduced vulnerability to exploitation and increased civic participation.
Active Roles in Delivering Possibilities for Corporates
Corporations require stable operating environments to invest, innovate, and expand. Intentional progressive leadership enacts policies that ease business registration, combat corruption, and promote public-private partnerships. Disciplined security safeguards supply chains, intellectual property, and personnel against threats like extortion or sabotage.
This combination drives economic dynamism. Businesses flourish when leaders provide predictable regulations and when security forces respond swiftly to disruptions, allowing corporates to focus on value creation rather than risk mitigation.
Active Roles in Delivering Possibilities for Nation Building
At the national level, these elements are foundational to sovereignty, legitimacy, and prosperity. Progressive leadership builds inclusive institutions, diversifies economies, and integrates regional and global partnerships. Disciplined security preserves territorial integrity, deters external interference, and supports internal harmony.
Nation building succeeds when leadership fosters national identity and security architecture reinforces it through equitable protection and justice.
The Current Picture: Realities in Nigeria, Africa, and the Wider World
Nigeria exemplifies both promise and persistent hurdles. As Africa’s most populous nation and largest economy, it possesses immense human and natural potential. Yet, as of early 2026, security challenges remain acute: insurgency and banditry in the Northeast and Northwest, farmer-herder conflicts in the Middle Belt, kidnapping for ransom nationwide, and separatist tensions in the Southeast. These have displaced millions, stifled agriculture and commerce, and eroded public trust. Leadership under President Bola Tinubu has pursued reforms, including kinetic and non-kinetic counter-insurgency measures, the appointment of a new Chief of Defence Staff in late 2025 for better operational coherence, and emphasis on human capital development (HCD 2.0). Progress includes reported surrenders of insurgent affiliates and targeted infrastructure investments, yet gaps persist in governance coordination, community engagement, and addressing root causes such as poverty and youth unemployment.
Across Africa, the landscape is heterogeneous. Positive models include Rwanda, where post-genocide leadership under President Paul Kagame has combined visionary governance with disciplined security to achieve sustained growth, digital innovation, and regional stability. Botswana stands as another exemplar: decades of prudent, transparent leadership have turned diamond revenues into broad-based development while maintaining professional security institutions that uphold democratic norms. Ghana demonstrates democratic continuity with progressive economic policies and relatively effective security cooperation. Conversely, parts of the Sahel face coups, jihadist expansion, and governance fragility, highlighting how leadership vacuums and undisciplined security exacerbate cycles of instability.
Globally, the interplay is evident in success stories such as Singapore’s transformation under Lee Kuan Yew, where meritocratic leadership and disciplined, corruption-free security institutions propelled a resource-poor city-state into a high-income economy. South Korea’s post-war reconstruction similarly blended visionary leadership with security alliances and human capital focus. In contrast, nations experiencing leadership complacency or fragmented security—such as certain conflict zones in the Middle East or Latin America—illustrate stalled development and eroded possibilities.
These realities reveal a clear pattern: intentional progressive leadership and disciplined security are not luxuries but necessities. Their absence perpetuates underdevelopment; their presence catalyzes breakthroughs.
Relevant Examples Illustrating Essence and Impact
- Rwanda: Post-1994 genocide, intentional leadership focused on reconciliation, education, and technology hubs, supported by disciplined security reforms that prioritized professional training and community policing. This has elevated Rwanda to one of Africa’s fastest-growing economies, attracting foreign investment and reducing poverty dramatically.
- Botswana: Progressive leadership emphasized accountable resource management and anti-corruption measures, paired with a professional military and police force. The outcome is one of Africa’s most stable democracies and highest Human Development Indices.
- Singapore: Lee Kuan Yew’s intentional policies built a merit-based civil service and rigorous, rule-based security apparatus. This created a safe, efficient environment that transformed the nation into a global financial and logistics hub.
- Nigeria-specific: Initiatives like community-based security arrangements in some states, when aligned with progressive local leadership, have reduced localized banditry. Corporate examples include Lagos tech ecosystems thriving amid targeted security enhancements in business districts.
These cases justify the essence: deliberate leadership and disciplined security deliver measurable possibilities when integrated holistically.
Proffering Relevant Solutions: Pathways Forward Without Prejudice
Solutions must be context-specific yet universally applicable, emphasizing collaboration across stakeholders.
For Peoples (Individuals and Communities):
- Nigeria and Africa: Scale up human capital programs like Nigeria’s HCD 2.0 through universal basic education, vocational training, and digital literacy, especially in rural and conflict-affected areas. Integrate community policing models that empower local vigilantes under professional oversight to build trust.
- Wider World: Adopt inclusive social safety nets and mental health support in post-conflict settings. International partners can provide technical assistance for youth entrepreneurship funds.
- Outcome: Reduced vulnerability and empowered citizens who contribute actively to development.
For Corporates:
- Nigeria and Africa: Enact progressive policies such as streamlined business regulations, tax incentives for security technology investments, and public-private security partnerships (e.g., joint task forces for critical infrastructure). Encourage corporate social responsibility in community safety initiatives.
- Wider World: Promote global standards like ISO security management systems and cross-border investment guarantees tied to stability metrics.
- Outcome: Enhanced investor confidence, job creation, and innovation ecosystems.
For Nation Building:
- Nigeria: Strengthen institutional reforms, including anti-corruption enforcement, judicial independence, and devolved security responsibilities (e.g., state police with federal safeguards). Foster inclusive national dialogues and leverage technology for intelligence sharing.
- Africa: Enhance African Union mechanisms for peer review, joint peacekeeping, and economic integration to address transnational threats.
- Wider World: Support multilateral frameworks that reward progressive governance with development aid and security cooperation, emphasizing capacity-building over external imposition.
- Cross-cutting Measures: Invest in data-driven monitoring (e.g., peace indices), leadership training academies, and civil society engagement to ensure accountability.
Implementation requires political will, sustained funding, and adaptive evaluation. International standards—such as those from the World Bank’s governance indicators or the Institute for Economics and Peace—can guide benchmarking without external overreach.
Conclusion: A Call to Deliberate Action
Intentional progressive leadership and disciplined security are not abstract ideals but active agents that shape destinies. In Nigeria and across Africa, where challenges are pronounced yet potential is vast, their effective deployment can convert vulnerabilities into strengths. Globally, they offer proven blueprints for resilient, prosperous societies. The current picture, while marked by setbacks, also reveals pathways of hope through ongoing reforms and exemplary models. By embracing these forces with intentionality, stakeholders at all levels can deliver genuine possibilities—empowered peoples, thriving corporates, and cohesive nations. The imperative is clear: invest in people-centered leadership and professional security today to secure a more equitable and stable tomorrow. Through collaborative, evidence-based strategies, Nigeria, Africa, and the wider world can realize their full potential in an interdependent global order.
Dr. Tolulope A. Adegoke, AMBP-UN is a globally recognized scholar-practitioner and thought leader at the nexus of security, governance, and strategic leadership. His mission is dedicated to advancing ethical governance, strategic human capital development, and resilient nation-building, and global peace. He can be reached via: tolulopeadegoke01@gmail.com, globalstageimpacts@gmail.com
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Opinion
Characterisation of Biomass Feedstocks Relaxation Properties Using Visco Elastic Models
Published
1 week agoon
March 28, 2026By
Eric
By Dr. Aminu Owonikoko, PhD
Overview
This thesis investigates a deceptively simple but industrially important question: what happens to biomass materials when they are compressed and then allowed to relax? Biomass — such as woodchips, wheat straw, leafy residues, cotton seeds, and wood pellets — is a major renewable resource used for energy production and sustainable manufacturing. However, its physical behaviour during handling, storage, and processing is poorly understood. Unlike uniform materials such as sand or grain, biomass is irregular, springy, and unpredictable. This unpredictability leads to blockages, equipment failures, and inefficient energy use in biomass processing plants.
The research provides a scientific foundation for predicting how biomass behaves under pressure by combining controlled experiments with Visco elastic modelling. The work introduces a new method for extracting key model parameters, enabling more accurate and transparent predictions of biomass relaxation behaviour.
Why Biomass Behaviour Matters
Biomass supply chains involve several mechanical steps: compaction, transport, storage, and feeding into processing equipment. During these steps, biomass is often compressed. Once the pressure is removed, the material “relaxes” — it expands, shifts, and redistributes internal stresses. This relaxation affects:
• how much biomass can be stored
• how reliably it flows through hoppers and conveyors
• how much energy is required to process it
• the likelihood of blockages or equipment downtime
Understanding this behaviour is essential for designing efficient, reliable, and cost effective biomass systems.
Research Aim
The central aim of the thesis is to characterise the stress relaxation behaviour of five biomass feedstocks and to develop robust Visco elastic models that can predict this behaviour under different loading conditions.
Experimental Approach
Five biomass materials were selected due to their relevance in renewable energy and agricultural supply chains:
• Fuzzy cotton seeds
• Leafy biomass
• Wheat straw
• Woodchips
• Wood pellets
Each material was compressed using a Shimadzu MTS testing machine. After reaching a target stress level, the load was held constant while the material’s stress decay was recorded over time (typically 60, 120, and 180 seconds). These measurements captured both fast relaxation (immediate stress drop) and slow relaxation (longer term settling).
The experimental data revealed that each biomass type behaves differently, reflecting differences in structure, moisture content, particle shape, and internal bonding.
Modelling Approach
To interpret the experimental results, the thesis applies Visco elastic models — mathematical tools traditionally used to describe materials that behave partly like solids and partly like fluids. Two models were central:
1. Zener Model
– Captures both elastic and viscous behaviour
– Useful for materials with a clear fast relaxation component
2. Two Maxwell Elements Model
– Represents two relaxation processes simultaneously
– Ideal for materials with both fast and slow relaxation phases
A key contribution of the thesis is the development of a numerical and graphical method for estimating model parameters (such as relaxation time constants) without relying heavily on curve fitting software like MATLAB or OriginPro. This method improves transparency, reduces error, and makes the modelling approach more accessible to engineers.
Key Findings
1. Biomass Has Distinct Relaxation “Signatures”
Each biomass type exhibits a unique pattern of stress decay. For example:
• Wood pellets relax quickly and predictably.
• Leafy biomass relaxes slowly and irregularly.
• Wheat straw shows intermediate behaviour.
These signatures can be used to classify materials and predict their handling performance.
2. Fast and Slow Relaxation Are Mechanically Meaningful
The two Maxwell elements model successfully separates fast and slow relaxation processes. This distinction helps engineers understand how biomass responds immediately after compression versus how it settles over time.
3. New Parameter Extraction Method Improves Accuracy
The thesis introduces a novel approach for estimating relaxation time constants and stress components. This reduces dependence on automated curve fitting tools and provides more reliable model predictions.
4. Models Predict Real Behaviour Well
When applied to experimental data, both the Zener and two Maxwell models accurately reproduce the relaxation curves. This confirms that Visco elastic modelling is a powerful tool for biomass characterisation.
Practical Implications
The findings have direct relevance for industries that handle biomass:
• Improved equipment design: Better predictions of relaxation behaviour reduce blockages and mechanical failures.
• Optimised storage: Understanding how biomass settles helps determine safe and efficient storage densities.
• Reduced energy use: More predictable flow reduces the energy required for conveying and processing.
• Enhanced process reliability: Plants can operate more consistently with fewer interruptions.
Conclusion
This thesis provides a comprehensive experimental and theoretical framework for understanding biomass relaxation behaviour. By combining detailed measurements with improved Visco elastic modelling, it offers new insights into how biomass responds under pressure — insights that are essential for scaling up renewable energy and sustainable manufacturing.
The work advances both scientific understanding and practical engineering, contributing to the development of cleaner, more efficient biomass systems.
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