Discussion on “protective reactors for feeder circuits of large city power systems” (Lyman, Perry and Rossman) and “use of reactance with synchronous converters,” (Yardley) New York, October 9, 1914. (see proceedings for November, 1914)

1915 ◽  
Vol 34 (6) ◽  
pp. 1309-1322
Keyword(s):  
New York ◽  
Power Systems ◽  
Large City

Engineering as a Prerequisite for Growth: New York and its Infrastructure

2019 ◽  
Author(s):  
Marie Ennis ◽  
Donald Friedman
Keyword(s):  
New York ◽  
Structural Engineering ◽  
Large City ◽  
Close Correlation ◽  
Structural Type ◽  
World City ◽  
Suspension Bridges ◽  
World Record ◽  
Physical Constraints ◽  
The World

<p>As a world city, New York is famous for many reasons; as a large city located primarily on islands at a complex of rivers, bays, and tidal straits, it has long depended on structural engineering for viability. Prominent structures include underwater vehicular and rail tunnels, bridges of every structural type, and aqueducts. Ten different buildings have held the world record for height, two arch bridges have held the world record for span, and four different suspension bridges have held the world record for their main span. With a multitude of successful businesses and the physical constraints of the geography, the motivation for technical innovation were present, and engineers were ready for the challenges.</p><p>These structures have generally not been built because they would break records, but rather because they served a purpose. For example, the Brooklyn Bridge, with a center span fiIy percent longer than the second- longest at the time of its construction, was built because ferries were the only transportation between New York and Brooklyn, then the first and third largest cities in the country. There is a close correlation, decade by decade and beginning in the 1880s, between what was feasible in terms of structural engineering and what has been built to enable the city to grow and prosper. This paper will examine that correlation and engineers’ role in the city’s evolution.</p>

scholarly journals A New Indicator of Transient Stability for Controlled Islanding of Power Systems: Critical Islanding Time

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2975 ◽  
Author(s):  
Zhenzhi Lin ◽  
Yuxuan Zhao ◽  
Shengyuan Liu ◽  
Fushuan Wen ◽  
Yi Ding ◽  
...  
Keyword(s):  
New York ◽  
Power Systems ◽  
New England ◽  
Transient Stability ◽  
Time Frame ◽  
Test System ◽  
Crucial Importance ◽  
Interconnected System ◽  
Controlled Islanding ◽  
Simulation Results

Transient stability after islanding is of crucial importance because a controlled islanding strategy is not feasible if transient stability cannot be maintained in the islands created. A new indicator of transient stability for controlled islanding strategies, defined as the critical islanding time (CIT), is presented for slow coherency-based controlled islanding strategies to determine whether all the islands created are transiently stable. Then, the stable islanding interval (SII) is also defined to determine the appropriate time frame for stable islanding. Simulations were conducted on the New England test system–New York interconnected system to demonstrate the characteristics of the critical islanding time and stable islanding interval. Simulation results showed that the answer for when to island could be easily reflected by the proposed CIT and SII indicators. These two indicators are beneficial to power dispatchers to keep the power systems transiently stable and prevent widespread blackouts.

Method for optimizing control actions following emergencies in large-city electric power systems

2011 ◽  
Vol 45 (1) ◽  
pp. 50-52 ◽  
Author(s):  
A. I. Volkov ◽  
N. V. Korovkin ◽  
O. N. Sokolova ◽  
E. V. Sorokin ◽  
O. V. Frolov
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Large City ◽  
Electric Power Systems ◽  
Control Actions ◽  
Optimizing Control

scholarly journals New Avenues for Electrochemistry

2001 ◽  
Vol 123 (02) ◽  
pp. 46-51
Author(s):  
Michael Valenti
Keyword(s):  
New York ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Power Systems ◽  
Coal Mine ◽  
Cell System ◽  
Fuel Cell System ◽  
Industrial Plants ◽  
Coal Mine Methane ◽  
Automotive Engines

Manufacturers of fuel cells are working to improve the economics of electrochemical devices to make them more competitive with conventional fossil fuel power systems for industrial plants and vehicles. FuelCell Energy of Danbury, Connecticut, is designing a system to convert polluting coal mine methane into electricity. General Electric MicroGen of Latham, New York, plans to introduce a residential fuel cell system by the end of the year to provide remote homes with backup current and heat. Another residential system is being developed by International Fuel Cells of South Windsor, Connecticut. The Department of Energy’s National Energy Technology Laboratory in Morgantown, West Virginia, is sponsoring a program to determine the feasibility of feeding coal mine methane to fuel cells. The program involves building a 250-kilowatt fuel cell system at the Nelms mining complex operated by Harrison Mining Corp. in Cadiz, Ohio. A fuel cell system planned for the Nelms complex will assist these automotive engines in consuming methane emissions while generating electricity.

scholarly journals Examining the Key Drivers of Residential Solar Adoption in Upstate New York

2020 ◽  
Vol 12 (6) ◽  
pp. 2552
Author(s):  
Chelsea Schelly ◽  
James C. Letzelter
Keyword(s):  
New York ◽  
Technology Adoption ◽  
Power Systems ◽  
Online Survey ◽  
Electric Energy ◽  
Upstate New York ◽  
Decision Factors ◽  
Factors Influencing ◽  
Solar Electricity ◽  
Solar Technology

This research examines the decision factors influencing adoption of residential solar electric power systems in upstate New York. New York has a goal to provide 100% of electric energy in the State through renewable resources, which includes solar electricity, by 2030. Thus, identifying the most important decision factors may be useful in understanding potential means of promoting solar technology adoption. Through an online survey of homeowners in upstate New York who have installed residential solar systems, the research examined the importance of decision factors influencing the decision to adopt and how factors have changed over time. The research finds that environmental motivations are slightly more important than economics and that perception of solar installers is also important to adopters. This work contributes new insights to the field of research examining solar and renewable energy technology adoption at the residential scale, addresses the role of policy in promoting solar adoption, and provides insights for developers and others looking to enhance the rates of solar technology adoption at the residential scale.

Measuring the Impact of Various Dispatching Procedures on Response Time, Backlog, Availability and Patient Care in an Urban Setting

1985 ◽  
Vol 1 (S1) ◽  
pp. 61
Author(s):  
David DeLucia ◽  
Emil Pascarelli
Keyword(s):  
New York ◽  
New York City ◽  
Response Time ◽  
Patient Care ◽  
Large City ◽  
Urban Setting ◽  
Massachusetts Institute ◽  
Massachusetts Institute Of Technology ◽  
Institute Of Technology ◽  
The Impact

A study conducted by the Massachusetts Institute of Technology concluded that in a large city, a minimum of eight ambulances per 500,000 population was desirable to assure a reasonable response time.How does a large city with less than this suggested minimum make best use of its available ambulance units ?A three week study was conducted in New York City to examine the impact of various dispatching procedures on response time, “backlog”, availability of “back-up” units and patient care.

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