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Willard W. Pulkrabek

Bio: Willard W. Pulkrabek is an academic researcher. The author has contributed to research in topics: Exhaust gas recirculation & Combustion. The author has an hindex of 1, co-authored 1 publications receiving 858 citations.

Papers
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Book
01 Jan 1997
TL;DR: In this article, the authors used an applied thermoscience textbook for an undergraduate course on internal combustion engines, where students were assumed to have knowledge of fundamental thermodynamics, heat transfer, and fluid mechanics as a prerequisite to get maximum benefit from the text.
Abstract: This book was written to be used as an applied thermoscience textbook in a onesemester, college-level, undergraduate engineering course on internal combustion engines. It provides the material needed for a basic understanding of the operation of internal combustion engines. Students are assumed to have knowledge of fundamental thermodynamics, heat transfer, and fluid mechanics as a prerequisite to get maximum benefit from the text. This book can also be used for self-study and/or as a reference book in the field of engine

878 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, a comprehensive review has been carried out in order to show the effects of the main process conditions (heating rate, temperature, pressure, carrier gas flow rate and type, volatiles residence time and pyrolysis time) on physicochemical properties and distributions of the resulting products (gas, liquid and solid fractions).
Abstract: This review deals with the state-of-the-art of waste tyre pyrolysis for the first time in literature. Pyrolysis has been addressed as an attractive thermochemical process to tackle the waste tyre disposal problem while allowing energy recovery. Pyrolysis enables the separation of carbon black from tyres and the volatile matter released (condensable and non-condensable compounds) has the potential of renewable energy recovery given the significant proportion of natural rubber present in the tyre. Given this waste-to-energy pathway, a comprehensive review has been carried out in order to show the effects of the main process conditions (heating rate, temperature, pressure, carrier gas flow rate and type, volatiles residence time and pyrolysis time) on the physicochemical properties and distributions of the resulting products (gas, liquid and solid fractions). It has also been reviewed the influence of the size and composition of the feedstock. All reported results have been framed regarding the type of reactor as well as the experimental conditions used to avoid contradictions among the large number of publications on the subject. It is shown that the occurrence of secondary reactions is very sensitive to the interaction of the aforementioned variables. Also, the main properties of the pyrolytic products are pointed out. The liquid and gaseous fractions obtained are a valuable fuel source; while the solid fraction (char) has the recovery potential of low- grade carbon black or as carbon adsorbent after applying an activation step. Special attention has been given to the liquid fraction, highlighting its properties as alternative fuel in compression ignition engines.

596 citations

Journal ArticleDOI
Erjiang Hu1, Zuohua Huang1, Jiajia He1, Chun Jin1, Jianjun Zheng1 
TL;DR: In this article, an experimental and numerical study on laminar burning characteristics of premixed premixed methane-hydrogen-air flames was conducted at room temperature and atmospheric pressure.

443 citations

Journal ArticleDOI
01 Apr 2009-Fuel
TL;DR: In this paper, the performance and combustion characteristics of a direct injection (DI) diesel engine fueled with biodiesels such as waste (frying) palm oil methyl ester (WPOME) and canola oils methyl esters (COME) were analyzed.

430 citations

Journal ArticleDOI
D.H. Qi1, L.M. Geng1, Hao Chen1, Y.Zh. Bian1, J. Liu1, X.ch. Ren1 
TL;DR: In this article, the performance, emissions and combustion characteristics of the compression ignition engine of a diesel and biodiesel engine were analyzed, and the results showed that biodiesel exhibited similar combustion stages to that of diesel, however, biodiesel showed an earlier start of combustion.

397 citations

Journal ArticleDOI
TL;DR: In this paper, the authors identify the potential use of natural gas/diesel dual fuel on diesel engine and analyze the performance characteristics of the dual fuel mode in comparison with normal diesel mode.

387 citations