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Nist

By Domanski, P. A.

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Book Id: WPLBN0000660825
Format Type: PDF eBook
File Size: 576.19 KB.
Reproduction Date: 2005

Title: Nist  
Author: Domanski, P. A.
Volume:
Language: English
Subject: Technology., Reference materials, Technology and literature
Collections: Techonology eBook Collection
Historic
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Domanski, P. (n.d.). Nist. Retrieved from http://www.ebooklibrary.org/


Description
Technical Reference Publication

Excerpt
Introduction: The CYCLE_D package simulates the vapor compression refrigeration cycles that use pure refrigerants or mixtures of refrigerants. The model can simulate a basic refrigeration cycle as well as a cycle with a liquid-line/suction-line heat exchanger. CYCLE_D operates in a user-friendly Windows environment that facilitates evaluating the performance of selected working fluids at different operating conditions. Calculations are based on refrigerant properties as represented in the NIST Reference Fluid Thermodynamic and Transport Properties?REFPROP, Version 7.0 [1]...

Table of Contents
CONTENTS INTRODUCTION....................................................................................1 SYSTEM REQUIREMENTS...................................................................1 INSTALLATION......................................................................................1 MODELING APPROACH.......................................................................2 Refrigerants and Refrigerant Properties..........................................2 Condenser and Evaporator.............................................................2 Compressor ....................................................................................3 Suction Line and Discharge Line.....................................................4 Liquid-Line/Suction-Line Heat Exchanger.......................................4 Powers to Indoor Fan, Outdoor Fan, and Controls..........................4 Refrigerant Line Sizing Calculations ...............................................5 Simulation Results .........................................................................5 Uncertainty of Simulation Results ...........................................6 USE OF CYCLE_D................................................................................7 Specifying Input Data......................................................................8 Toggle Indicators.....................................................................8 Specifying Refrigerant and Cycle Data for the Compressor Data Option...............................................8 Selecting Compressor and Cycle Data for the Compressor Map Option.............................................11 Running a Simulation....................................................................13 Presenting Simulation Results......................................................14 General Results ....................................................................14 Refrigerant Parameters on a System Schematic...................16 Temperature-Entropy and Pressure-Enthalpy Diagrams........17 Refrigerant Line Sizing Information........................................18 Managing Files..............................................................................19 Saving the Current Input Data Set and Results.....................19 Loading a File with an Input Data Set....................................20 Exiting CYCLE_D..........................................................................20 Clearing Working Areas.........................................................20 Quitting CYCLE_D Session...................................................20 Diagnostic Messages ...................................................................21 REFERENCE.......................................................................................21

 

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