Residential fenestration performance analysis using RESFEN3.1

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This paper describes the development efforts of RESFEN3.1, a PC-based computer program for calculating the heating and cooling energy performance and cost of residential fenestration systems. The development of RESFEN has been coordinated with ongoing efforts by the National Fenestration Rating Council (NFRC) to develop an energy rating system for windows and slqdights to maintain maximum consistency between RESFEN and NFRC's planned energy rating system. Unlike previous versions of RESFEN, that used regression equations to replicate a large database of computer simulations, Version 3.1 produces results based on actual hour-by-hour simulations. This approach has been facilitated by the exponential increase ... continued below

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17 p.

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Huang, Y.J.; Mitchell, R.; Arasteh, D. & Selkowitz, S. February 1, 1999.

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Description

This paper describes the development efforts of RESFEN3.1, a PC-based computer program for calculating the heating and cooling energy performance and cost of residential fenestration systems. The development of RESFEN has been coordinated with ongoing efforts by the National Fenestration Rating Council (NFRC) to develop an energy rating system for windows and slqdights to maintain maximum consistency between RESFEN and NFRC's planned energy rating system. Unlike previous versions of RESFEN, that used regression equations to replicate a large database of computer simulations, Version 3.1 produces results based on actual hour-by-hour simulations. This approach has been facilitated by the exponential increase in the speed of personal computers in recent years. RESFEN3.1 has the capability of analyzing the energy performance of windows in new residential buildings in 52 North American locations. The user describes the physical, thermal and optical properties of the windows in each orientation, solar heat gain reductions due to obstructions, overhangs, or shades; and the location of the house. The RESFEN program then models a prototypical house for that location and calculates the energy use of the house using the DOE-2 program. The user can vary the HVAC system, foundation type, and utility costs. Results are presented for the annual heating and cooling energy use, energy cost, and peak energy demand of the house, and the incremental energy use or peak demand attributable to the windows in each orientation. This paper describes the capabilities of RESFEN3.1, its usefulness in analyzing the energy performance of residential windows and its development effort and gives insight into the structure of the computer program. It also discusses the rationale and benefits of the approach taken in RESFEN in combining a simple-to-use graphical front-end with a detailed hour-by-hour ''simulation engine'' to produce an energy analysis tool for the general public that is user-friendly yet highly accurate.

Physical Description

17 p.

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OSTI as DE00008692

Medium: P; Size: 17 pages

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  • Other Information: PBD: 1 Feb 1999

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  • Report No.: LBNL--42871
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/8692 | External Link
  • Office of Scientific & Technical Information Report Number: 8692
  • Archival Resource Key: ark:/67531/metadc794130

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  • February 1, 1999

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Nov. 2, 2017, 3:11 p.m.

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Huang, Y.J.; Mitchell, R.; Arasteh, D. & Selkowitz, S. Residential fenestration performance analysis using RESFEN3.1, report, February 1, 1999; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc794130/: accessed July 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.