Richard K. Meade

Bio: Richard K. Meade is an academic researcher. The author has contributed to research in topics: Rotary kiln & Obsolescence. The author has an hindex of 2, co-authored 2 publications receiving 10 citations.

How the U.S. Accounting Profession Got Where It Is Today: Part II

Abstract: Few would deny that the U.S. accounting profession is in a very troubled state. The aim of this two‐part article is to explain how and why the profession evolved and changed during the 20th century, with particular emphasis on the last three decades. It is my hope that this article will illuminate the origins and consequences of these changes that collectively brought the profession to its current condition.

Progress of the development of reactors for pyrolysis of municipal waste

Abstract: Pyrolysis is a promising process to convert municipal waste into fuels in solid, liquid or gaseous forms or value-added chemicals. The composition of pyrolysis products is affected by many factors, among which the configuration of the pyrolysis reactor is one of the essential parameters, as it influences the heat transfer, mass transfer, residence time of the reaction intermediates, interaction of the volatiles, etc. Up to now, there are varied types of pyrolysis reactors including the rotary-kiln, fixed-bed, batch and semi-batch, fluidized-bed, tubular, plasma and microwave that have been used in the pyrolysis of municipal waste. Each type of reactor has its own configuration and affects the pyrolysis process of municipal waste in distinct ways. There is a necessity for revisiting the progress of the investigation of the characteristics of the pyrolysis of municipal waste in different types of reactors, especially in terms of the kinetics of pyrolysis and the distribution of products. In addition, the techno-economic aspects of the pyrolysis of municipal waste in varied types of reactors are discussed, aiming to assess the potential for large-scale or commercial applications.

Experimental Apparatus for Studying Heat Transfer in Externally Heated Rotary Kilns

Abstract: Rotary kilns are widely used in several branches of the chemical industry. In order to control the temperature of the solid and the gas flowing through the kiln, it is important to understand the heat exchange phenomena that occur. The design and construction of a novel experimental device to study heat exchange in rotary kilns is described. The device, which comprises a rotary kiln equipped with an external electrical heating system, enables the study of the influence of various parameters such as the solid flow rate, the kiln inclination angle, the rotational speed, or the presence of lifters on heat exchange and in particular on the heat exchange coefficient between the solid and the wall. Preliminary experimental results concerning the influence of the solid flow rate and the rotational speed on the solid-to-wall heat exchange coefficient are presented.

Depreciation, Deterioration and Obsolescence when there is Embodied or Disembodied Technical Change

Abstract: The paper considers how to measure capital in a model where technical progress is either embodied in new units of capital or it is “disembodied” and simply causes the price of capital services to fall. The disembodied case is considered in sections 2-4. Sections 2 and 3 set out standard vintage capital aggregation models when there is no embodied technical progress. Section 4 discusses disembodied obsolescence in more detail. Section 5 introduces new (more efficient) models of the capital good so that technical progress is embodied in the new models. Section 6 shows how the parameters in the Jorgenson model of capital services could be estimated by statistical agencies if their investment surveys covered sales and retirements of used assets as well as purchases of new assets. Section 7 concludes.