Gregory J. McRae

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Carbon capture and storage (CCS) is a critical technology for reducing greenhouse gas emissions from electricity production by coal-fired power plants. However, full capture (capture of nominally 90% of emissions) has significant impacts on the technology, plant performance, and project economics that represent challenges for the first movers who implement(More)
We have derived a parameterization consisting of a set of analytical expressions that approximate the predictions by the CIT Urban Airshed Model for the net export to the environment (i.e., effective emissions) of several chemical species, as functions of fourteen input parameters. For each species, effective emissions are a function of actual urban(More)
This paper presents the probabilistic collocation method as a computationally efficient method for performing uncertainty analysis on large complex models such as those used in global climate change research. The collocation method is explained, and then the results of its application to a box model of ocean thermohaline circulation are presented. A(More)
Importance of this paper: Novel tunable infrared laser techniques have been used to quantify N 2 O/CO 2 emission factors from large numbers of recent on-road US motor vehicles. These data show that N 2 O emissions from vehicles equipped with three-way catalysts are signi®cantly lower than some previous estimates, although signi®cant uncertainty remains in(More)
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Abstract Post combustion absorption technologies represent one of the most commercially ready technologies for CO 2 capture. Solvent selection is the critical consideration in post-combustion absorption capture technology. In order to(More)
A Markov Chain Monte Carlo model for integrating the observations of inorganic species with a thermody-namic equilibrium model was presented in Part I of this series. Using observations taken at three ground sites, i.e. a residential, industrial and rural site, during the MCMA-2003 campaign in Mexico City, the model is used to analyze the inorganic particle(More)
A kinetic model unifying presynaptic short-term facilitation and depression, " Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story(More)
In order to produce gridded fields of pollutant concentration data and surface wind data for use in an a~r quality model, a nu~ber of techniques for interpolating sparse data values are compared. The tech-mques are compared usmg three data sets. One is an idealized concentration distribution to which the exact solution is known, the second is a potential(More)