Ahmed Y. Abdulla

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Analysts and decision makers frequently want estimates of the cost of technologies that have yet to be developed or deployed. Small modular reactors (SMRs), which could become part of a portfolio of carbon-free energy sources, are one such technology. Existing estimates of likely SMR costs rely on problematic top-down approaches or bottom-up assessments(More)
The energy efficiency of hydrogen recovery from mixtures of CO 2 , H 2 O, and H 2 by a polymer electrolyte hydrogen pump (PEHP) has been evaluated. The PEHP pumps protons across the polymer electrolyte, producing [99.99% pure H 2 and a concentrated CO 2 stream. Single stage PEHP experiments recovered 65% of the hydrogen with an energy efficiency of 50%. The(More)
Small modular reactors (SMRs) may provide an energy option that will not emit greenhouse gases. From a commercial point-of-view, SMRs will be suitable to serve smaller energy markets with less developed infrastructure, to replace existing old nuclear and coal power plants, and to provide process heat in various industrial applications. In this paper, we(More)
It is hard to see how our energy system can be decarbonized if the world abandons nuclear power, but equally hard to introduce the technology in nonnuclear energy states. This is especially true in countries with limited technical, institutional, and regulatory capabilities, where safety and proliferation concerns are acute. Given the need to achieve(More)
ii This paper represents my own work in accordance with University regulations. I authorize Princeton University to lend this thesis to other institutions or individuals for the purpose of scholarly research. I further authorize Princeton University to reproduce this thesis by photocopying or by other means, in total or in part, at the request of other(More)
The capability to build nuclear weapons is a key national security factor that has a profound influence on the balance of international relations. In addition to long-standing players, regional powers and peripheral countries have sought for ways of acquiring and/or developing them. The authors postulate that to express the capabilities, relative positions,(More)
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