DOE-2 Reference Manual Version 2.1 - DOE2.com

ABSTRACTThis document describes the DOE-2 computer program, which is capable ofrapid and detailed analysis of energy consumption in buildings. A new, userorientedlanguage, the Building Description Language, has been written to allowsimplified manipulation of the many variables used to describe a building andits operation. ooE-2 includes:1. a Building Description Language (BDL) program to analyze the inputinstructions, perform data assignments and data retrieval, andcontrol the operation of the LOADS, SYSTEMS, PLANT, ECONOMICS, andREPORT programs;2. a LOADS analysis program, which calculates peak, or design, loadsand hourly space loads imposed by ambient weather conditions andinternal occupancy, lighting, and equipment, as well as by variationsin the size, location, orientation, construction, andmaterials for walls, roofs, floors, fenestrations, attachments(e.g., awnings or balconies), and the shape of a building;3. a SYSTEMS program capable of simulating the operation of secondaryHeating, Ventilating, and Air-Conditioning (HVAC) components,including fans, coils, economizers, and humidifiers, which may bearranged in various user-selected configurations and may be operatedaccording to various temperature schedules;4. a PLANT program, which models the operation of primary HVACcomponents (e.g., boilers, chillers); electrical generationequipment (e.g., diesel engines or turbines), energy storage andsolar heating and/or cooling systems;5. an ECONOMICS analysis program, which calculates life-cycle costs,6. a REPORT program that generates the output reports, and7. a set of WEATHER ANALYSIS programs capable of manipulating,summarizing, and plotting weather data.A library of weather data has been prepared, which includes temperature,barometric pressure, wind, and cloud data for sixty locations in theUnited States. These data are used to calculate the thermal response of abuilding for each hour of a year. A preliminary library of schedule data hasalso been prepared to illustrate typical hourly conditions that can be used tospecify desired temperature variations, occupancy patterns, lighting, andequipment operation. The construction library contains data on the propertiesof walls, roofs, and floors. The materials library contains data on the commonbuilding materials. The Constructions, Materials, and Weather libraries areavailable in machine-addressable form; the other library data are availableonly in printed form. Finally, input and output samples are included tol11ustrate the use of DOE-2.i (Revised 5/81)