Table of Contents: Plant Application Guide — EnergyPlus 25.1
Table of Contents
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Introduction
Organization
Scope
EnergyPlus Nomenclature
Generating an EnergyPlus Line Diagram
Example for EnergyPlus Line Diagram Generation
Inputting the system into the IDF file
Example System 1: Chiller and Condenser Loops
Chilled water (CW) loop
Flowcharts for the CW Loop Input Process
CW Loop Supply Side Loop Construction
CW Loop Demand Side Loop Construction
Flowcharts for CW Loop Controls
Chilled Water Loop Schedules
Chilled Water Loop Plant Equipment Operation Schemes
Chilled Water Loop Setpoints
Chilled Water Loop Sizing
Condenser Loop
Flowcharts for the Condenser Loop Input Process
Condenser Loop Supply Side Construction
Condenser Loop Demand Side Construction
Flowcharts for Condenser Loop Controls
Condenser Loop Schedules
Condenser Loop Plant Equipment Operation Schemes
Condenser Loop Setpoints
Condenser Loop Sizing
Example System 2: Thermal Energy Storage
Primary Cooling Loop (
CoolSysPrimary
) - Chiller
Flowcharts for the Primary Cooling Loop Input Process
CoolSysPrimary Supply Side Loop Construction
CoolSysPrimary Demand Side Loop Construction
Flowcharts for Primary Cooling Loop Controls
CoolSysPrimary Schedules
CoolSysPrimary Plant Equipment Operation Schemes
CoolSysPrimary Setpoints
CoolSysPrimary Sizing
Condenser Loop (
Condenser Loop
) - Cooling Tower
Flowcharts for the Condenser Loop Input Process
Condenser Loop Supply Side Construction
Condenser Loop Demand Side Construction
Flowcharts for Condenser Loop Controls
Condenser Loop Schedules
Condenser Loop Plant Equipment Operation Schemes
Condenser Loop Setpoints
Condenser Loop Sizing
Heating Loop (
HeatSys1
) - Boiler
Flowcharts for the Heating Loop Input Process
Heating Loop Supply Side Construction
Heating Loop Demand Side Construction
Flowcharts for Heating Loop Controls
Heating Loop Schedules
Heating Loop Plant Equipment Operation Schemes
Heating Loop Setpoints
Heating Loop Sizing
Example System 3: Primary/Secondary Pumping
Primary Chilled Water Loop – Chiller(s) and purchased cooling
Flowcharts for the Primary Chilled Water Loop Input Process
Primary Cooling System Supply Side Loop Construction
Primary Cooling Loop Demand Side Loop Construction
Flowcharts for Primary Chilled Water Loop Controls
Primary Chilled Water Loop Schedules
Primary Chilled Water Loop Plant Equipment Operation Schemes
Primary Chilled Water Loop Setpoints
Secondary Chilled Water Loop – Plate Heat Exchanger
Flowcharts for the Secondary Chilled Water Loop Input Process
Secondary Chilled Water Loop Supply Side Loop Construction
Secondary Chilled Water Loop Demand Side Loop Construction
Flowcharts for secondary chilled water loop Controls
Secondary Chilled Water Loop Schedules
Secondary Chilled Water Loop Plant Equipment Operation Schemes
Secondary Chilled Water Loop Setpoints
Secondary Chilled Water Loop Sizing
Primary/Secondary Pumping
Condenser Loop - Cooling Tower
Flowcharts for the Condenser Loop Input Process
Condenser Loop Supply Side Construction
Condenser Loop Demand Side Construction
Flowcharts for Condenser Loop Controls
Condenser Loop Schedules
Condenser Loop Plant Equipment Operation Schemes
Condenser Loop Setpoints
References
Documentation content copyright © 1996-2025 The Board of Trustees of the University of Illinois and the Regents of the University of California through the Ernest Orlando Lawrence Berkeley National Laboratory. All rights reserved. EnergyPlus is a trademark of the US Department of Energy.
This documentation is made available under the EnergyPlus Open Source License v1.0.