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Achieving Near Zero Energy Building (NZEB) Standards with Structural Health Monitoring (SHM) Concept in Africa

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By Aminu Owonikoko

The threat of global warming, together with international agreements like the Kyoto Protocol on sustainable/renewable development, has led to significant interest in the potential of using sustainable energy as a source of power in various buildings such as Solar Energy/Power and Biomass Heating/Bioenergy. This has resulted in rethinking in building construction supply chain industry. Amongst relevant declarations, the United Kingdom (UK) government made a commitment to ensure that 10% of energy production would be from renewable/sustainable sources by 2010 and would progressively increase to 15% by 2020 and beyond. This is a tremendous task and it is definitely affecting the building construction supply chain industry both locally and globally. A concerted effort is therefore required from academia, industry, the general public and the government to achieve these targets. However, Africa and UK cannot act alone to tackle the climatic issues that affect the building construction supply chain, and therefore, international collaborations are required especially with the foreign suppliers of building construction materials. Thus, designing and constructing Near Zero Energy Buildings (NZEB) embedded with ‘SMART’ Structural Health Monitoring (SHM) technology are not only important but necessary. A building which produces or emits energy through sustainable routes as much as it uses from the Grid is known as Near Zero Energy Buildings while Structural Health Monitoring technology is a way of monitoring and evaluating structural health using smart sensors.

Near Zero Energy Buildings (NZEB) project analyses current design practices especially for high integrity and safety critical structures made from composite materials such as building roofing and column. The capabilities of Structural Health Monitoring (SHM) technologies to provide dependable and continuous structural diagnosis and prognosis will be investigated and aligned with structural design cases. The research will involve propose stage and test hypothesis for new structural design principles that preserve the damage tolerance and fail safe nature of current design but incorporating ‘smart’ SHM features as a design variable. New concepts will arise at the point where SHM and structural design converge. The novelty of this work gives excellent prospects for high profile publications and dissemination in conferences.

The work will comprise theoretical investigation of structural design processes especially with respect to building structures and composite materials. Experimental test cases incorporating SHM technologies will also be realised and demonstrated based on new approaches to design that realise advantages in terms of weight, complexity and performance. Furthermore, application ofTheory of Inventive Problem Solving (TRIZ) will be integrated into the project because of its benefits such as segmentation or segregation and extraction.

Safety critical structural design philosophies generally rely on over engineering to accommodate uncertainties in material or structural parameters. Design for maintainability also introduces design constraints such as access for manual inspection. Structural Health Monitoring (SHM) and Near Zero Energy Buildings (NZEB) can impact on both of these constraints by providing an intrinsic sensing function as a design element. Instead of building in extra features to allow fail safe operation or increasing the stiffness and thickness of structural parts to allow for uncertainty in material integrity, the built-in sensors can remove the need for these by providing accurate structural diagnosis at any time.  This would remove the uncertainties that lead to design margins (factors) and allow new design paradigms leading to reduced weight, less material, more efficient designs and enhanced performance.
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Figure 1: Example of a Structural health monitoring (SHM) modules (Ren He., et al., 2017)

 Net Zero Energy Buildings (NZEB) Concepts

The following NZEB concepts have been identified from the work of Pless, S., and Torcellini, P., 2010:

1.      Connection of Grid

2.      Switching of Fuel

3.      Renewable/Sustainable Energy Credits

4.      Options for Energy Supply and Demand

 

1.      Connection of Grid

In concept, NZEB generates excess energy than it employs annually and discharges excess Sustainable Energy generation to the utility (such as district hot water system and electricity grid) to control the energy employed. A utility connection is permitted for energy balances for NZEB. Based on assumption, on-site generation excess can be sent to the grid to be wholly employed.

2.      Switching of Fuel

The definition of NZEB enables renewable/sustainable electricity generation to offset different fossil/traditional energy employs. E.g. natural gas energy employ can be offset with excess wind energy or solar energy (i.e. photovoltaic-PV) transferred to the grid; the offset level is calculated by the energy employ accounting method.

3.      Renewable/Sustainable Energy Credits

Various Sustainable/Renewable Energy projects are not fully sponsored via the marketing of renewable energy credits (RECs). Though this is a pertinent financial tool, once the RECs are sold and then bought by another person, the project cannot claim the advantages of the renewable energy generated on site for the usefulness of NZEB classification. RECs are not resold in other different utility purchase models.

4.      Options for Energy Supply and Demand

Many supply angles of renewable energy production technologies are available for NZEB. Examples of renewable energy production technologies are solar energy (i.e. photovoltaic-PV), geothermal energy, wind, biofuels/bioenergy and hydroelectricity. Renewable energy demand angle and efficiency measures combine methods that save energy but are not commercialised. These cannot be included in the supply angle balance for achieving an NZEB. Examples of demand angle renewable energy and energy efficiency methods consist of day lighting, solar heating, domestic solar water heaters and solar ventilation air preheaters. Renewable energy guiding principles in NZEB are formulated to minimise the movements of energy from production route to final usage and generate maintenance in the residential and commercial buildings environments:

·         Reduce the total environmental influence by recommending building designs that are energy-efficient, utilization of renewable energy, and minimising conversion, transportation and transmission losses.

·         Renewable energy technology must be available over the life duration of the residential and commercial buildings.

·         Must have high repeatable/consistency data potential for future NZEB.

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Figure 2: Example of Net Zero Energy Building (NZEB) Concept (Bjorn Berggren and Monika Hall, 2013)

 References:

[1] Berggren, B., and Hall, M., (2013) “LCE analysis of buildings – Taking the step towards Net Zero Energy Buildings”.

 [2] Ren, H., Chen X., and Chen, Y. (2017) “Structural Health Monitoring and Influence on Current Maintenance”. Reliability Based Aircraft Maintenance Optimization and Applications Aerospace Engineering 2017, Pages 173-184.

Aminu Owonikoko MPhil (UK), MSc (UK), B.Tech (Nigeria) Reverse Innovation, Business Process and Manufacturing Excellence Consultant @ Muniowo Agro Nigeria Limited (RC818651) in Partnership with Ajax Equipment Ltd (www.ajax.co.uk) Mobile Phone No: +61 449223107   E-mail: owonikokoak@yahoo.com

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Okuama Massacre: Military Declares Eight Persons Wanted

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The Defence Headquarters has declared eight persons wanted over their roles in the recent killing of 17 military personnel in Delta State.

The military released the list on Thursday at a briefing in Abuja.

Those declared wanted are Prof. Ekpekpo Arthur, Andaowei Dennis Bakriri, Akevwru Daniel Omotegbo (Aka Amagben), Akata Malawa David, Sinclear Oliki, Clement Ikolo Oghenerukeywe, Reuben Baru, and Igoli Ebi.

During the briefing, the Director, Defence Media Operations, Major General Edward Buba, called on Nigerians especially residents of Delta and adjoining states to assist the military with credible information that would lead to the arrest of eight persons allegedly responsible for the killing of seventeen soldiers in Okuama community in Delta State.

General Buba says the military remains determined to fish out the perpetrators of the heinous act in Delta State, reaffirming its commitment to rescue all kidnapped and abducted victims in Nigeria.

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How CJMR Has Championed Restoration of Justice to Unjustly Incarcerated, Condemned – Founder, Olujobi

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By Eric Elezuo

“At CJMR, we stand firm on our scriptural foundation: ‘Speak up for those who cannot speak for themselves, ensure justice for those being crushed. Yes, speak up for the poor and helpless, and see that they get justice…,” Pastor Olujobi 

Most citizens of the world are endowed with milk of human kindness, and are ever ready to lend a helping hand to folks in need, either for cash or kind. One of these citizens is a Nigerian of special breed, filled with compassion and zeal to assist wrongfully detained persons to regain their freedom. He is Mr. Hezekiah Olujobi, who is leading the fight against wrongful detention and elongated detention without trial with his Non-Governmental Organization, the Centre for Justice, Mercy and Reconciliation (CJMR).

The CJMR as stated, is NGO dedicated to promoting human rights and advocacy within the Nigeria Correctional Service and strengthening the rule of law in Nigeria Criminal Justice System, according to the Founder, Mr. Olujobi.

“Our area of focus are Advocacy, Alternative Dispute Resolution, Investigation, Cases review, Rehabilitation of individual upon freedom and Restorative Justice in Criminal Matter,” he added.

The CJMR as an organization, was established in 1999, and was officially registered in 2009. It has since then accumulated an enviable and proven track record of facilitating the release of individuals from death row, some of whom had been unjustly incarcerated for 18 to 28 years.

“Additionally, over 600 inmates have been freed from illegal detention after 4 to 12 years without trial. The organization has also established a Halfway Home that has benefited over 300 individuals.

“Our activities cut across the Correctional service in South West: Oyo, Odun , Ogun and Lagos States. We still have over 100 cases for intervention including 10 people on death row whom we strongly believed they are victims of wrongful conviction,” Olujobi stressed.

Hezekiah Olujobi, also known as a Pastor, for his vocation as a preacher of the gospel, who is the founder of CJMR, is currently working on two books to project the work of the organization so far.

The first, “Their Stories Behind Bars,” is a collection of narratives from individuals wrongfully sentenced to death and how the organization helped secure their rrlease, while the second book, “Their Hurts and Unforgettable Memories,” delves into the stories of victims and offenders, exploring their deep hurts and the healing process through restorative justice.

The following stories below as told by Pastor Olujobi, carefully epitomizes how far the NGO has gone to put smiles on the faces of individuals, who have otherwise lost hope of ever living their lives among free people again

Olaniyi Emiola’s Wrongful Conviction: My Belief in His Innocence

Olaniyi Emiola was sentenced to death based on witness testimony that was a case of mistaken identity. The armed robber apprehended at the crime scene insisted he was not the person being referred to and claimed he did not know Emiola at all. However, one of the victims, who recognized Emiola by the name “Abija,” insisted that he was the culprit. Emiola was known in the streets as “Abija,” not “Niyi,” yet the robber mentioned a “Femi Niyi,” not “Abija.” The man in question is Olaniyi Emiola, not Femi Niyi. During the trial, it was claimed that the robber identified the house of their leader to them, who is known as Abija,

In this controversial case, the conclusion of judgment of my noble lord, Hon Justice Jimoh of the Tribunal Court, was as follows:

“It is our considered judgment that the discovery of the second accused in the house pointed out by the first accused to the prosecution, and the discovery of the stolen items in the house shown to the police by the first accused, are admissible and well taken. Referencing R. v. Garbett (1847) 2 C & K 474 and R. v. Treacy (1945) 30 CAR 93, with these authorities in view, the second accused has been properly identified and linked with the commission of the crime charged.

Since the prosecution has adduced sufficient evidence to place the second accused at the scene at the material time, his alibi defense is logically and physically demolished.

This was established by the Supreme Court in the cases of Patrick Njovens vs. The State (1973) 5 SC 17 at 65 and Christian Nwosisi v. The State (1976) 6 SC 109 at 112.

It is my considered judgment that since the defense of the second accused has failed and, by the acceptable evidence of the prosecution witnesses, the accused has fallen into the warm embrace of the law, and I so hold.

SENTENCE: OLANIYI EMIOLA – The sentence of the Tribunal upon you is that you be hanged by the neck until you are dead or suffer death by firing squad, as the Administrator of this State may direct. May the Lord have mercy on your soul.”

This was the judgment that sent a man to darkness and anguish, leaving him to await execution in a solitary cell for 11 years without the right to appeal, luckily for him, the abolition of execution was announced in Nigeria.

Reprieve came when we visited Kirikiri Maximum Security Prison in 2007. We investigated the matter by analyzing the entire judgment and all the contents of the case file. We took up his case, amplified his voice of innocence, and refuted all the arguments in light of the existing facts recorded in the judgement.

Olaniyi Emiola was finally set free in January 2011, after 17 years had been wrongfully taken from his life.

One can only imagine what would have happened if execution had not been abolished in Nigeria.

CJMR’s Advocacy visit to the Oyo State Attorney General

The organisation has also taken its advocacy to the Attorney General’s office in Oyo State, and achieved certain parameters as represented in the narrative below:

“On Wednesday, March 20, 2024, the Committee for Centre for Justice Mercy and Reconciliation (CJMR) conducted an advocacy visit to the office of the Oyo State Attorney General. The purpose of the visit was to highlight the plight of numerous inmates who have been denied justice and are enduring the prolonged anguish of indefinite trials for capital offenses.

The primary goal of the visit was to bring to the Attorney General’s attention specific cases of individuals who appear to have been wrongfully accused of capital offenses and have been languishing in detention since 2015 without legal advice. Additionally, there are those who have been repeatedly taken to the High Court since 2017 without the prosecution presenting a single witness.

In a recent development on March 18 and 19, 2024, the Oyo State Chief Judge, Honorable Justice Iyabo Yerima, visited the custodial centers in Ibadan and Oyo. She firmly resolved not to address any capital offense cases, maintaining her stance throughout the jail delivery exercise. Consequently, 32 inmates were released from Agodi and 38 from Oyo, totaling 70 releases from facilities that house 1,250 and 827 inmates, respectively. The data clearly indicates that a significant proportion of detainees charged with capital offenses remain unaddressed.

Pastor Olujobi further noted that “During the CJMR’s visit, seven recommendations were proposed to enhance the efficiency of justice delivery by the Attorney General’s office, and a list of 32 individuals awaiting legal advice was submitted.”

The Attorney General, known for his humility and activism, pledged to collaborate with the CJMR.

He further acknowledged that “It is a profound injustice for individuals, even those apprehended with substantial evidence, to be detained indefinitely, risking the degradation of evidence and waning interest or resolve of witnesses. The slow turn of the justice system’s wheels can erode its very foundation.

“Similarly, it is an injustice for an innocent person to endure punishment due to procedural delays or inefficiencies.

The presumption of innocence until proven guilty is a fundamental principle of democratic societies, yet it is undermined when the process to establish innocence is plagued by excessive delays. The time for change is now.

Olujobi is also of the view that “The judiciary must move beyond a confessionary-based approach to prison decongestion and focus on those unjustly detained for capital offenses.”

From Darkness to Light: The Unraveling of Injustice and the Triumph of Freedom for Olusola Adepetu after 26 years behind bar

In this scenario, the police conducted a comprehensive investigation, and the defense attorney performed admirably. However, despite these efforts, the judge appeared to succumb to public pressure, reminiscent of Pontius Pilate’s historical decision, resulting in Olusola Adepetu being wrongfully sentenced to death.

Tragically, this miscarriage of justice led to the loss of 26 years of Adepetu’s life.

The appellant, a native of Ondo state was 34 years old at the time of his arrest, a father of 4 children with a broken home.

He was the owner of Olusola Naturalist Hospital. He was a Guru in herbal traditional-medicine, very popular with radio and television advertisements.

He cures all manner of ailment, he was a highlife socialite, he was a member of special marshal of Federal Road Safety Commission, due to the nature of his work as herbal traditional medicine healer he was highly connected with people in high places who always patronized him and in the world ravaged with deceases people always throng his office to seek healing for their ailments.

He is not a medical doctor but always referred to as Doctor Olusola.

All of a sudden, the light of his fame and popularity went off, he was enveloped with thick darkness. For a good 26 years he never walks under the moon nor is beaten by rain.

What happened?

His girlfriend was murdered in a mysterious way, three days later, her dead body was recovered by the police at the Express way, Sanyo, Ibadan and deposited at mortuary in Adeoyo state Hospital. Who must have done this?

Nobody knows till today. The relations who were in the shop of the father of his girlfriend who saw him when he came to pick the deceased and the bar man who saw him the previous day with the deceased pointed touch light on him.

Upon his arrest, rumors went round the whole city like wildfire and consumed the heart of men, same Radio and Television stations where his advertisements were being jingled, announced his arrest, all kinds of rumors went round the city, his case became a celebrated case.

He was consumed by the public adverse opinion.

With all kinds of rumors, the death of the lady was attributed to ritual killing, some said he cut the breast of the lady, some said he cut her private part for the ritual purpose.

At every court adjournment the whole court room and the premises will always be filled up with people. The case attracted the public interest. Like Pontius Pilate, the judge has no choice than to deliver the innocent man as a sacrificial lamb not for the world but for his likely hidden sin.

Light shines on his path again, when we unravel the case file documents with the dissenting judgement and the man regains his freedom after 26 years.

The critical question is: Who will advocate for the poor and helpless? It is us;
The Chief Judge, Attorney General, Commissioner of Police, and all stakeholders must be involved. And this where CJMR comes in, and the organization are doing it.

“We therefore call for wholesome assistance from all and sundry to sustain the tempo, and help our people, who graciously need the assistance,” Olujobi concluded.

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Binance Executive Detained in Nigeria Escapes from Custody

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One of the two Binance executives detained in Nigeria for alleged tax evasion and other offences, Nadeem Anjarwalla, has escaped from lawful custody, according to PREMIUM TIMES report.

Our sources said Mr Anjarwalla, 38, escaped on Friday, 22 March, from the Abuja guest house where he and his colleague were detained after guards on duty led him to a nearby mosque for prayers in the spirit of the ongoing Ramadan fast.

The Briton, who also has Kenyan citizenship, is believed to have flown out of Abuja using a Middle East airliner.

It remains unclear how Mr Anjarwalla got on an international flight despite his British passport, with which he entered Nigeria, remaining in the custody of the Nigerian authorities.

Authorities are also said to be working to unravel his intended destination in a bid to get him back into custody.

An Immigration official said the Binance executive fled Nigeria on a Kenyan passport. He, however, said authorities were trying to determine how he obtained the passport, given that he had no other travel document (apart from the British passport) on him when he was taken into custody.

Another source said the two officials were held at a “comfortable guest house” and allowed many rights, including the use of telephones, a privilege Mr Anjarwalla is believed to have exploited to plot an escape.

When contacted Sunday night on the escape of the Binance executive from detention, the Head of Strategic Communication at the Office of the National Security Adviser, Zakari Mijinyawa, said he would enquire and revert. He has yet to do so as of the time of filing this report.

Mr Anjarwalla, Binance’s Africa regional manager, and Tigran Gambaryan, a US citizen overseeing financial crime compliance at the crypto exchange platform, were detained upon their arrival in Nigeria on 26 February 2024.

A criminal charge was filed against the two executives before a Magistrate Court in Abuja. On 28 February 2024, the court granted the Economic and Financial Crimes Commission (EFCC) an order to remand the duo for 14 days. The court also ordered Binance to provide the Nigerian government with the data/information of Nigerians trading on its platform.

Following Binance’s refusal to comply with the order, the court extended the remand of the officials for an additional 14 days to prevent them from tampering with evidence. The court then adjourned the case till 4 April 2024.

Also on 22 March, the Nigerian government approached the Federal High Court in Abuja and slammed another four-count charge on Binance Holdings Limited, Mr Anjarwalla and Mr Gambaryan, accusing them of offering services to subscribers on their platform while failing to register with the Federal Inland Revenue Service to pay all relevant taxes administered by the Service and in so doing, committed an offence, contrary to and punishable under Section 8 of the Value Added Tax Act of 1993 (as Amended).

The defendants were also accused of offering taxable services to subscribers on their trading platform while failing to issue invoices to those subscribers to determine and pay their value-added taxes and, in so doing, committed an offence contrary to and punishable under S.29 of the Value Added Tax Act of 1993 (as amended).

Count Three of the charges accused the three defendants of offering services to subscribers on their Binance trading platform for the buying and selling of cryptocurrencies and the remittance and transfer of those assets while failing to deduct the necessary Value Added Taxes arising from their operations and thereby committing an offence contrary to and punishable under Section 40 of the Federal Inland Revenue Service Establishment Act 2007 (as amended).

The last count of the charges wants the defendants punished for allegedly aiding and abetting subscribers on their Binance trading platform to unlawfully refuse to pay taxes or neglect to pay those taxes and, in so doing, committing an offence contrary to and punishable under the provisions of S.94 of the Companies Income Tax Act (as amended).

The Nigerian government had, in the past three months, been cracking down on suspected money launderers and terrorism financiers, some of whom it alleged are using the Binance platform for criminal activities

The Nigerian government said over $21.6 billion was traded by Nigerians whose identities were concealed by Binance.

Source: Premium Times

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