Hussam Jouhara

Hussam Jouhara
Brunel University London · Heat Pipe and Thermal Management Research Group

PhD, CEng, FIMechE, FIEI, FCIBSE

About

196
Publications
147,424
Reads
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5,923
Citations
Introduction
Having worked in academia and the industry, Hussam has unique expertise in working on applied heat exchangers and energy-related research activities with direct support from research councils and various UK and international industrial partners. He has extensive expertise in designing and manufacturing various types of heat exchangers, including heat pipes and heat pipe-based heat exchangers for low, medium and high temperature applications. His work in the field of heat pipe based heat exchangers resulted in novel designs for recouperators, steam generators & condensers and flat heat pipes. These have been implemented across various industries including, but not limited to: food, electronics thermal management and low to high industrial waste heat recovery and Energy from Waste.
Additional affiliations
June 2019 - present
Elsevier B.V.
Position
  • Editor
Description
  • The Editor-in-Chief of the International Journal of Thermofluids, which is journal publishing original papers and short communications in heat and mass transfer, thermodynamics, fluid mechanics and combustion. https://www.journals.elsevier.com/international-journal-of-thermofluids
September 2014 - present
Brunel University London
Position
  • Professor (Full)
Description
  • Chair in Thermal Engineering and Director of Research
January 2012 - September 2014
Econotherm (UK) ltd (Associate comopany of Spirax Sarco PLC)
Position
  • Managing Director
Education
July 1999 - January 2004
The University of Manchester
Field of study
  • Mechanical Engineering

Publications

Publications (196)
Article
Full-text available
Heat pipes are becoming increasingly popular as passive heat transfer technologies due to their high efficiency. This paper provides a comprehensive review of the state-of-the-art applications, materials and performance of current heat pipe devices. The paper is divided into four main parts; low temperature heat pipes, high temperature heat pipes,...
Article
Full-text available
A heat pipe based pyrolysis chamber has been developed and tested as an efficient, cost effective and space saving municipal waste treatment unit. The performance of the chamber was evaluated based on the temperature distributions inside the chamber, its electricity consumption and the chemical characteristics of the final pyrolysis products (bio-c...
Article
An experimental investigation of the performance of thermosyphons charged with water as well as the dielectric heat transfer liquids FC-84, FC-77 and FC-3283 has been carried out. The copper thermosyphon was 200 mm long with an inner diameter of 6 mm, which can be considered quite small compared with the vast majority of thermosyphons reported in t...
Article
A thermal management system (TMS) is necessary for lithium-ion batteries (LiBs) used in electric vehicles/hybrid electric vehicles (EVs/HEVs), which generate excessive heat during fast discharging and charging. In order to provide low power consumption and efficient heat transfer, finding the most efficient, cheapest, and lightest solution like pha...
Article
This article discusses an ultrasonic technique for monitoring liquid flow. The mean velocity of the flow behind an obstruction in the throttle type was measured using an ultrasonic flow meter. Furthermore, the equations used to analyze the velocity distribution in a distorted turbulent flow are presented. The measurement findings were compared with...
Article
Heat transfer and phase change processes of water droplets in humid air flow were investigated by performing experiments and numerical simulations of heat recovery from biofuel exhaust gas at 40–250 °C, which is characteristic for condensing heat exchangers. Compared to the experiments, the numerical investigation was performed within a wider range...
Article
In the present work, a multi-objective optimization study of an irreversible Ericsson cycle is carried out to evaluate a cryogenic refrigerator system based on thermal and ecological performance. The coefficient of performance, cooling load and input power are considered as objective functions along with an ecological objective function and the eff...
Article
The heating and phase changes of water droplets in 140 °C air flow humidified up to water vapor volumetric fraction of 0.3 were investigated experimentally in the context of heat recovery from flue gases with condensing economizers. The experiments were performed in experimental set-up, where atmospheric air of certain temperature and humidity pass...
Article
The purpose of this article is to review the current physical, chemical and hybrid technologies practices employed in the removal of pharmaceuticals from liquid effluents originating from various resources including municipal waste, hospitals discharge with a focus on pharmaceutical manufacturing industry. Pharmaceutical pollutants are mostly persi...
Article
Energy simulations of buildings complement or replace the static calculations used so far and provide detailed answers to questions such as: what is the energy demand for individual purposes in a building and how does it change over the course of a day, a month, a year and also enable a comparison of several design variants and the selection of the...
Article
The article presents research on the purification process of pyrolysis gas from hydrogen sulfide. To our best knowledge, similar studies have not been performed yet on a real pyrolysis gas obtained from waste tyres, which contains huge amounts of hydrogen sulfide - average 3.6% (up to 5.1% at 420 °C). Different sorbents were tested, among them sodi...
Article
In the current work, we demonstrate a simple, versatile, and scalable approach to synthesized silica encapsulated phase-change material (n-hexacosane) loaded between exfoliated-graphite nanosheets (ESPCM) by a chemical process (sol-gel and hydrothermal technique), exhibiting ultra-high thermal stability. The morphological, structural, and chemical...
Article
Recently, flat heat pipes have been proposed for surface cooling applications to passively extract and recover thermal energy from hot surfaces. For instance, flat heat pipes have recently been proposed as thermal absorber for photovoltaic/thermal (PV/T) applications or for the thermal management of batteries. Following promising surface cooling re...
Article
Utilizing Solar Chimney Power Plants (SCPPs) for manufacturing clean and environment-friendly energy has drawn a lot of attention in recent years and has (over the passing decades) become one of the most promising solutions in the solar energy field. Low efficiency, construction difficulties and other required improvements have encouraged researche...
Article
This work evaluates the performance regarding exergo-economic and emissions requirements of Waste Heat Recovery configurations (Organic Rankine cycle, Trilateral flash cycle, and Kalina cycle) under different operating conditions and working fluids. It was found that the best economic performance is presented by the Organic Rankine cycle that opera...
Article
Lithium-ion batteries are widely used in high power applications and, with more industries focusing on the electrification of their processes, the need for an effective battery thermal management system is growing. The use of a thermal management system serves multiple purposes such as safeguarding the battery from catastrophic thermal runaway and...
Article
As policies have been implemented globally to limit the production of greenhouse gases (GHGs) and the effects of climate change, the generation of electricity by renewable technologies has started to increase. The development of sustainable energy storage solutions has also become more important. The continued use of conventional chemical batteries...
Article
Full-text available
In this work, computational modelling and performance assessment of several different types of variable thermoelectric legs have been performed under steady-state conditions and the results reviewed. The study conducted has covered geometries, not previously analysed in the literature, such as Cone-leg and Diamond-leg, based on the corresponding th...
Article
Full-text available
In order for the operation of the condensing heat exchanger to be efficient, the flue gas temperature at the inlet to the heat exchanger should be reduced so that condensation can start from the very beginning of the exchanger. A possible way to reduce the flue gas temperature is the injection of water into the flue gas flow. Injected water additio...
Article
Full-text available
Heat recovery opportunities and total plant energy efficiency improvements need to be evaluated before manufacturing the real components when addressing the energy and economic effectiveness in industrial applications. Numerical modelling of the complete energy systems can be a key design tool in order to investigate the potential solutions to impr...
Article
Full-text available
Energy consumption in the housing sector, is significantly high and continues to escalate. Urbanisation due to population growth and migration from rural areas to cities are two main reasons for this rising demand. With the uncertainty in the energy market and the increasing awareness of the impact of fossil fuels on the environment, research work...
Article
Full-text available
In this work, the feasibility of implementing a waste heat recovery system based on the capture of radiation emitted from the surface of a rotary kiln is evaluated by coupling CFD analysis and process modelling including mass, energy, and exergy balances. It is found a potential heat recovery of up to 4980 kW of heat with an annulus absorber panel...
Article
Full-text available
The ceramics industry is the second largest energy consuming sector in Europe. The main energy used in the ceramics industry is heat generated through burners using natural gas. The main area can be identified in three stages, the drying stage and the firing stage, and the cooling stage. The firing stage represents about 75% of the total energy cos...
Article
Full-text available
Nowadays humans are facing difficult issues, such as increasing power costs, environmental pollution and global warming. In order to reduce their consequences, scientists are concentrating on improving power generators focused on energy harvesting. Thermoelectric generators (TEGs) have demonstrated their capacity to transform thermal energy directl...
Conference Paper
Full-text available
In the framework of the PVadapt H2020 project, a sustainable and fully adaptable building-integrated photovoltaic-thermal (BIPVT) system of substantially lower cost than conventional in-market solutions will be developed. A flexible automated process will be employed to produce PV modules as well as elements with integrated heat pipe-based heat rec...
Article
Full-text available
In this paper, the performance of a multi-pass heat pipe-based heat exchanger (HPHE) is investigated experimentally and theoretically. The heat pipe system consists of copper heat pipes in a specific equatorially staggered configuration to facilitate heat transportation from a hot gas (air) to a water flow, which cools the condenser section of thes...
Article
Modern wood fuel plants use freshly felled and chipped wood, so the flue gas contains a significant amount of vapour. Even after the condensing economizer, the flue gas carries out a considerable amount of heat ejected into the surroundings. It is impossible to use this heat for heating directly because it is too low grade. Additional energy and in...
Article
Analyses will be conducted to indicate the energy performance of a photovoltaic-thermal (PV/T) system. In this regard, a simulation tool using the transient system simulation (TRNSYS) software will be developed to investigate if the system can be used to provide electrical and thermal energy to a household located in London, UK. Based on this, it w...
Article
Full-text available
Heat pipe heat exchangers (HPHEs) are being more frequently used in energy intensive industries as a method of low-grade waste heat recovery. Prior to the installation of a HPHE, the effect of the heat exchanger within the system requires modelling to simulate the overall impact. From this, potential savings and emission reductions can be determine...
Article
The interest in the energy efficiency of buildings and the integration of new technologies to reduce the heating and cooling loads through the building envelope is not new. The European Union (EU) is committed to decarbonising its building stock as almost 50% of the Union’s final energy consumption is for heating and cooling, of which 80% is used i...
Article
Lithuania, as other European countries with cold climates, has well developed district heating systems. Lithuania’s national energy strategy aims to reduce the dependence on imported fossil fuels, reduce the amount of greenhouse gas emitted into the atmosphere and increase the security of energy supply, and therefore, one of its principal objective...
Article
There are two RBMK-1500 type reactors in Lithuania, which are under decommissioning now. Long-lived low and intermediate level radioactive metallic waste generated during operation and decommissioning of the nuclear power plant is foreseen for deep geological disposal (DGR). A preliminary assessment of the radionuclide release from metallic waste a...
Article
Water scarcity is growing and in particularly in regions where population is high. It is estimated by world wild life organization that two thirds of human population may face water shortage by 2025. However, the amount of water available on earth covers approximately two thirds of the total surface area, but most of the water is seawater. Seawater...
Article
Full-text available
An unforeseen pandemic is facing the world caused by a corona virus known as SARS-CoV-2. Numerous measures are being put in place to try and reduce the spread of this deadly disease, with the most effective response to the outbreak being mass quarantines, a public health technique borrowed from the Middle Ages. The widely accepted main transmission...
Article
Full-text available
Cement is the world’s most widely used construction material. In 2019, global production amounted to 4086 MT, of which Colombia contributed 12.59 MT. The main component of cement is Clinker and it appears as an intermediate product in the manufacturing process that is produced in a kiln system at sintering temperatures. Such a process exhibits high...
Article
An issue of significant importance worldwide is the contamination of water with antibiotics giving rise to antibiotic resistance in the environment. Antibiotics such as tetracycline are widely used in agriculture, as such they can pollute water courses, providing a means by which environmental bacteria can evolve antibiotic resistance genes. Biocha...
Article
The constant development of the automotive industry causes a steady growth in the production of tyres, which have to be utilized properly after their lifespan. Pyrolysis is considered a promising solution, providing many advantages for the environment in comparison with traditional waste management methods. The pyrolysis of waste tyres was undertak...
Article
Full-text available
Recently, multi-channel flat heat pipes have been developed to improve the heat recovery from flat surfaces, such as solar panels and batteries. In this paper, the thermal performance of a multi-channel flat heat pipe is experimentally investigated and analytically predicted. The multi-channel heat pipe studied transmits heat from silicone flat hea...
Article
Full-text available
The achievement of European climate energy objectives which are contained in the European Union's (EU) “20-20-20” targets and in the European Commission's (EC) Energy Roadmap 2050 is possible, among other things, through the use of energy storage technologies. The use of thermal energy storage (TES) in the energy system allows to conserving energy,...
Article
‘Energy efficiency first’ is one of the key principles of the Energy Union, mainly due to it being the most cost effective way to reduce emissions, improving energy security, enhancing competitiveness and making energy consumption more affordable for all consumers. In light of the revised EU Energy Efficiency Directive, this paper discusses new devel...
Article
This paper investigates the adsorption of organic compounds in aqueous solution to biochar adsorbent, using methylene blue as an indicator for adsorption. Biochar was produced by the pyrolysis of mixed municipal discarded material in an innovative heat pipe reactor, the pyrolysis temperature was held at 300°C for 12 h. Biochar produced under these...
Article
Full-text available
In this paper, a standalone photovoltaics-thermal solar panel is modelled using the TRNSYS simulation engine. Based on this, it was explored how such a system can be comprised of thermal and electrical storage components to provide electricity and hot water for a dwelling in a warm location in Europe. Furthermore, it was investigated how, by coolin...
Article
Full-text available
In the framework of the ETEKINA project, waste energy streams have been analysed at an aluminium automotive parts production facility in Spain, at a steel foundry in Slovenia and at a ceramic tile production unit in Italy. The aim is to recover more than 40% of the waste heat contained in the exhaust streams and reuse it within the industrial plant...
Article
Full-text available
Aluminium is becoming more frequently used across industries due to its beneficial properties, generally within an alloyed form. This paper outlines the entire production process of aluminium from ore to the finished metallic alloy product. In addition, the article looks at the current state of the art technologies used in each discrete process ste...
Conference Paper
Waste heat is a problem common to high temperature processing industries as a significantly underused resource, often due to challenges in economic heat valorization. Secondary aluminum recycling and ceramic processing were identified as key examples with economically recoverable waste heat. Several challenges are inherent; these processes are batc...
Conference Paper
Full-text available
Waste heat is a problem common to high temperature processing industries as a significantly underused resource, often due to challenges in economic heat valorization. Secondary aluminum recycling and ceramic processing were identified as key examples with economically recoverable waste heat. Several challenges are inherent; these processes are batc...