A New Generation of Thermal Energy Benchmarks for University Buildings

Autor: S Saleh Mohammadi, Benedetto Nastasi, Salah Vaisi, Kavan Javanrodi
Rok vydání: 2020
Předmět:
Control and Optimization
Meteorology
020209 energy
Energy Engineering and Power Technology
02 engineering and technology
010501 environmental sciences
lcsh:Technology
01 natural sciences
performance certificates
energy benchmarking
university campus
energy performance certificate
CIBSE TM46
thermal energy efficiency
Benchmark (surveying)
0202 electrical engineering
electronic engineering
information engineering
Electrical and Electronic Engineering
Engineering (miscellaneous)
0105 earth and related environmental sciences
Energy performance certificate
Energy demand
lcsh:T
Renewable Energy
Sustainability and the Environment
business.industry
Energy benchmarking
Energy consumption
load
Thermal energy efficiency
University campus
Environmental science
business
Heating degree day
Thermal energy
Energy (miscellaneous)
Zdroj: Energies, Vol 13, Iss 6606, p 6606 (2020)
Energies; Volume 13; Issue 24; Pages: 6606
Energies, 13(24)
ISSN: 1996-1073
DOI: 10.3390/en13246606
Popis: In 2008, the Chartered Institution of Building Services Engineers (CIBSE TM46 UC) presented an annual-fixed thermal energy benchmark of 240 kWh/m2/yr for university campus (UC) buildings as an attempt to reduce energy consumption in public buildings. However, the CIBSE TM46 UC benchmark fails to consider the difference between energy demand in warm and cold months, as the thermal performance of buildings largely depends on the ambient temperature. This paper presents a new generation of monthly thermal energy benchmarks (MTEBs) using two computational methods including mixed-use model and converter model, which consider the variations of thermal demand throughout a year. MTEBs were generated using five basic variables, including mixed activities in the typical college buildings, university campus revised benchmark (UCrb), typical operation of heating systems, activities impact, and heating degree days. The results showed that MTEBs vary from 24 kWh/m2/yr in January to one and nearly zero kWh/m2/yr in June and July, respectively. Based on the detailed assessments, a typical college building was defined in terms of the percentage of its component activities. Compared with the 100% estimation error of the TM46 UC benchmark, the maximum 21% error of the developed methodologies is a significant achievement. The R-squared value of 99% confirms the reliability of the new generation of benchmarks.
Databáze: OpenAIRE
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