Rami M Saeed
Missouri University of Science and Technology, Director of Engineering at PCES, PhD in nuclear Engineering
Missouri University of Science and Technology, Engineering Managet at PCES, PhD in nuclear Engineering
Missouri University of Science and Technology, Engineering Manager at PCES, PhD in nuclear Engineering
Director of Engineering at Phase Change Energy Solutions - United States ; PhD in Nuclear Engineering - Missouri S&T
Address: North Carolina, United States
Address: North Carolina, United States
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Papers by Rami M Saeed
In one aspect, temperature control systems, such as sheets, are described herein which, in some embodiments, provide one or more advantages compared to other temperature control solutions. For example, in some cases, a temperature control system described herein can help maintain temperature at a wide variety of set points. A temperature control system described herein can also have a “dual mode” functionality, making the solution suitable for heating and cooling modes or for use under hot and cold operating conditions. Moreover, a temperature control system described herein, in some instances, allows end users to protect temperature-sensitive systems in a modular manner, thereby reducing deployment complexity.
A new Heat Exchanger design utilizing a novel concept of phase transition for nuclear heat transfer aspects such as thermal energy storage, release, and management for nuclear reactor fuel rod pools to assist in cooling, nuclear ice condensers, coupled nuclear reactor for peak load shifting, among many other industrial applications.
The production of electricity is generally more expensive during peak demand hours than at low demand hours. Therefore, various thermal energy storage systems have been developed which permits the storage of thermal energy for later use, such as during peak demand hours. Such deferred use of stored energy can reduce strain on the power grid and/or reduce the average cost of energy per kilowatt-hour during peak load periods. However, some previous thermal energy storage systems suffer from one or more disadvantages, such as short thermal energy storage periods, low efficiency, low versatility, and difficulty of installation. Improved thermal energy storage systems are therefore desired. Systems described herein can be used for variety of end-uses or applications, including but not limited to thermal energy storage, release, and management for nuclear reactor fuel rod pools to assist in cooling, nuclear ice condensers, coupled nuclear reactor for peak load shifting, among many other industrial applications.
were initiated to develop functionalized PCMs with enhanced thermal and physical properties to create the next generation of PCMs. Further efforts have been expanded to review several high-temperature PCM candidates with phase transition temperatures in the range of 70 ºC to 90 ºC for enhancing the passive safety and heat removal capabilities of
the reactor containment during Loss of Coolant Accidents (LOCA). An optimum PCM candidate was selected and the temperature-dependent properties of the selected PCM were studied in detail. The study has also reviewed very high-temperature PCMs in the range of 300 ºC to 900 ºC which provide a unique opportunity to meet the variation in the power
plant demand profiles. This review discussed various design and technical aspects on the concept of a coupled nuclear reactor thermal energy storage unit for several reactor types and identified numerous very high-temperature PCMs for potential improvements to Generation IV reactor designs and load shifting purposes. Finally, as a first step on experimentally studying a real PCM thermal energy storage system, a PCM heat exchanger
in the form of parallel-plate heat exchanger was built and experimentally characterized for load shifting purposes.
Principle investigators (PI): Dr. Rami M. Saeed, Mr. Shayne Rolfe
This project demonstrated an advanced thermal energy storage system—Latent Energy Storage System (LESS)—that utilizes an engineered bio-based polymeric gel to store latent energy in a heat exchanger. This approach to thermal storage can deliver substantial savings for the Department of Defense (DoD) not only in energy costs but also in infrastructure, equipment, and operational maintenance costs. The technical objective was to demonstrate at the Army National Training Center (NTC) at Ft. Irwin, CA the potential for an engineered phase change material (PCM) to store thermal energy at pre-determined temperatures, providing a minimum of 20% plant peak demand energy reduction, 25% plant energy cost savings (based on time of use rates) and, when replacement is due, a 40% reduction in chiller sizing.
Technology Description
The project expended the use of PCM into large-scale thermal energy storage systems, such as heat exchangers, for the control of electrical peak demand loads. LESS is a modular, self-contained system of thermal energy storage capable of storing and redistributing thermal energy at any predetermined temperature between -50°C to +150°C. This new technology uses the well-established principle of the latent heat of fusion when changing phase from liquid (gel) to solid. The system is based on the re-purposing of established polymer and carbon steel heat exchanger technology used extensively in the ice storage and solar thermal hot water industries. The system comprises an atmospherically vented tank, in which heat exchangers are fully immersed in a cross-linked polymeric matrix gel, specifically engineered for either high or low temperature storage. At the core of the LESS concept is an organic material derived from agricultural bi-products. The material is food grade, non-toxic, non-flammable, and developed from a renewable supply source.
In one aspect, temperature control systems, such as sheets, are described herein which, in some embodiments, provide one or more advantages compared to other temperature control solutions. For example, in some cases, a temperature control system described herein can help maintain temperature at a wide variety of set points. A temperature control system described herein can also have a “dual mode” functionality, making the solution suitable for heating and cooling modes or for use under hot and cold operating conditions. Moreover, a temperature control system described herein, in some instances, allows end users to protect temperature-sensitive systems in a modular manner, thereby reducing deployment complexity.
A new Heat Exchanger design utilizing a novel concept of phase transition for nuclear heat transfer aspects such as thermal energy storage, release, and management for nuclear reactor fuel rod pools to assist in cooling, nuclear ice condensers, coupled nuclear reactor for peak load shifting, among many other industrial applications.
The production of electricity is generally more expensive during peak demand hours than at low demand hours. Therefore, various thermal energy storage systems have been developed which permits the storage of thermal energy for later use, such as during peak demand hours. Such deferred use of stored energy can reduce strain on the power grid and/or reduce the average cost of energy per kilowatt-hour during peak load periods. However, some previous thermal energy storage systems suffer from one or more disadvantages, such as short thermal energy storage periods, low efficiency, low versatility, and difficulty of installation. Improved thermal energy storage systems are therefore desired. Systems described herein can be used for variety of end-uses or applications, including but not limited to thermal energy storage, release, and management for nuclear reactor fuel rod pools to assist in cooling, nuclear ice condensers, coupled nuclear reactor for peak load shifting, among many other industrial applications.
were initiated to develop functionalized PCMs with enhanced thermal and physical properties to create the next generation of PCMs. Further efforts have been expanded to review several high-temperature PCM candidates with phase transition temperatures in the range of 70 ºC to 90 ºC for enhancing the passive safety and heat removal capabilities of
the reactor containment during Loss of Coolant Accidents (LOCA). An optimum PCM candidate was selected and the temperature-dependent properties of the selected PCM were studied in detail. The study has also reviewed very high-temperature PCMs in the range of 300 ºC to 900 ºC which provide a unique opportunity to meet the variation in the power
plant demand profiles. This review discussed various design and technical aspects on the concept of a coupled nuclear reactor thermal energy storage unit for several reactor types and identified numerous very high-temperature PCMs for potential improvements to Generation IV reactor designs and load shifting purposes. Finally, as a first step on experimentally studying a real PCM thermal energy storage system, a PCM heat exchanger
in the form of parallel-plate heat exchanger was built and experimentally characterized for load shifting purposes.
Principle investigators (PI): Dr. Rami M. Saeed, Mr. Shayne Rolfe
This project demonstrated an advanced thermal energy storage system—Latent Energy Storage System (LESS)—that utilizes an engineered bio-based polymeric gel to store latent energy in a heat exchanger. This approach to thermal storage can deliver substantial savings for the Department of Defense (DoD) not only in energy costs but also in infrastructure, equipment, and operational maintenance costs. The technical objective was to demonstrate at the Army National Training Center (NTC) at Ft. Irwin, CA the potential for an engineered phase change material (PCM) to store thermal energy at pre-determined temperatures, providing a minimum of 20% plant peak demand energy reduction, 25% plant energy cost savings (based on time of use rates) and, when replacement is due, a 40% reduction in chiller sizing.
Technology Description
The project expended the use of PCM into large-scale thermal energy storage systems, such as heat exchangers, for the control of electrical peak demand loads. LESS is a modular, self-contained system of thermal energy storage capable of storing and redistributing thermal energy at any predetermined temperature between -50°C to +150°C. This new technology uses the well-established principle of the latent heat of fusion when changing phase from liquid (gel) to solid. The system is based on the re-purposing of established polymer and carbon steel heat exchanger technology used extensively in the ice storage and solar thermal hot water industries. The system comprises an atmospherically vented tank, in which heat exchangers are fully immersed in a cross-linked polymeric matrix gel, specifically engineered for either high or low temperature storage. At the core of the LESS concept is an organic material derived from agricultural bi-products. The material is food grade, non-toxic, non-flammable, and developed from a renewable supply source.