D

decatherm: Ten therms or l million Btu. One decatherm equals approximately 1,000 cubic feet (Mcf).

See also therm.
decibel (dB): A unit of noise measurement; the logarithmic function of sound energy. Compare dBA, a decibel measured using an A-weighting filter to mimic the response of the human ear.
dedicated service transformer or dedicated transformer: A transformer with a secondary winding that serves only one customer.
degree day: A unit measuring the extent to which the daily outdoor average temperature falls below an assumed base, normally 65 F, for heating. One degree day is counted for each degree falling below (for heating) the assumed base for each calendar day.
deliverability: The volume of gas a well, production field, pipeline, or distribution system can deliver in a given period of time.
delivery service: The services the Company may provide to deliver capacity or energy generated by customer to a buyer to a delivery point(s), including related ancillary services.
demand: The rate at which gas is delivered to or by a system, part of a system, or a piece of equipment, expressed in cubic feet or therms or multiples thereof, for a designated period of time called the demand interval.
demand charge: The charge to a customer based on the maximum demand, generally denoted in kilowatts, its use of electricity places on the system. The demand charge is designed to compensate the utility for the fixed costs of equipment required to meet the demand.
demand contract: A contract under...

< Previous Excerpt Next Excerpt >

The Handbook of Microturbine Generators

TABLE OF CONTENTS

D

Contact Preferences

This is embarrasing...

Customize Your GlobalSpec Experience

Select Your Free Newsletters

Industry Newsletters

Select Your Free Product Alerts

This is embarrasing...