Future trends of building heating and cooling loads and energy consumption in different climates

Wan, Kevin K.W.; Li, Danny H.W.; Liu, Dalong; Lam, Joseph C.

doi:10.1016/j.buildenv.2010.07.016

Cited by 273 publications

(112 citation statements)

References 30 publications

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“…Simultaneously, the study shows that the load shifting ability of the economic MPC will exploit the weather forecasts in order to reduce the total cost of operating the heat pump and therefore, the concept of economic MPC was to proof the use of perfect forecasts. [8] agree with the earlier research [6] that the results on building heating and cooling loads help in energy consumption and it is efficient in different climates. Hence, the energy consumption is efficient in different climates [9]; [10]; [11]; [12].…”

Section: Building Energy Efficiencysupporting

confidence: 91%

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Developing building comfort index from building climate factors in a tropical urban environment

Roslan

Shafri

2018

IOP Conf. Ser.: Earth Environ. Sci.

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Section: Building Energy Efficiencysupporting

confidence: 91%

“…Hence, the energy consumption is efficient in different climates [9]; [10]; [11]; [12]. Energy consumption is important in building and environment and will help the community to overcome to the increase of economy status [8].…”

Section: Building Energy Efficiencymentioning

confidence: 99%

Developing building comfort index from building climate factors in a tropical urban environment

Roslan

Shafri

2018

IOP Conf. Ser.: Earth Environ. Sci.

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“…However, it becomes important to select a particular standard weather year data set when absolute energy consumption data are required. Similar studies on office buildings were conducted in five major climate zones in China by using multi-year weather databases as well as TMY data [16][17][18]. The results showed a decreasing trend for heating loads and an increasing trend for cooling loads due to predicted climate change.…”

Section: Introductionmentioning

confidence: 63%

A fresh look at weather impact on peak electricity demand and energy use of buildings using 30-year actual weather data

2013

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Buildings consume more than one third of the world's total primary energy. Weather plays a unique and significant role as it directly affects the thermal loads and thus energy performance of buildings. The traditional simulated energy performance using Typical Meteorological Year (TMY) weather data represents the building performance for a typical year, but not necessarily the average or typical long-term performance as buildings with different energy systems and designs respond differently to weather changes. Furthermore, the single-year TMY simulations do not provide a range of results that capture yearly variations due to changing weather, which is important for building energy management, and for performing risk assessments of energy efficiency investments. This paper employs large-scale building simulation (a total of 3162 runs) to study the weather impact on peak electricity demand and energy use with the 30-year (1980 to 2009) Actual Meteorological Year (AMY) weather data for three types of office buildings at two design efficiency levels, across all 17 ASHRAE climate zones. The simulated results using the AMY data are compared to those from the TMY3 data to determine and analyze the differences. Besides further demonstration, as done by other studies, that actual weather has a significant impact on both the peak electricity demand and energy use of buildings, the main findings from the current study include: 1) annual weather variation has a greater impact on the peak electricity demand than it does on energy use in buildings; 2) the simulated energy use using the TMY3 weather data is not necessarily representative of the average energy use over a long period, and the TMY3 results can be significantly higher or lower than those from the AMY data; 3) the weather impact is greater for buildings in colder climates than warmer climates; 4) the weather impact on the medium-sized office building was the greatest, followed by the large office and then the small office; and 5) simulated energy savings and peak demand reduction by energy conservation measures using the TMY3 weather data can be significantly underestimated or overestimated. It is crucial to run multi-decade simulations with AMY weather data to fully assess the impact of weather on the long-term performance of buildings, and to evaluate the energy savings potential of energy conservation measures for new and existing buildings from a life cycle perspective.

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“…20). Moreover, it is unlikely that the thermal loads in buildings will decrease so that the joint use of cogeneration and district heating networks becomes non-viable [115]. On the other hand, usual reductions of heat losses in buildings are not as high as expected in the first instance (the users to see an improvement in the efficiency of an energy service that leads to a reduction of the actual cost of the service tend to consume more, causing the known rebound effect) [116].…”

Section: Discussionmentioning

confidence: 99%

District Heating and Cogeneration in the EU-28: Current Situation, Potential and Proposed Energy Strategy for Its Generalisation

Colmenar‐Santos¹,

Borge-Díez²,

Rosales-Asensio³

2017

District Heating and Cooling Networks in the European Union

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Yearly, EU-28 conventional thermal generating plants reject a greater amount of energy than what ultimately is utilised by residential and commercial loads for heating and hot water. If this waste heat were to be used through district heating networks, given a previous energy valorisation, there would be a noticeable decrease in imported fossil fuels for heating. As a consequence, benefits in the form of an energy efficiency increase, an energy security improvement, and a minimisation of emitted greenhouse gases would occur. Given that it is not expected for heat demand to decrease significantly in the medium term, district heating networks show the greatest potential for the development of cogeneration. However, to make this happen, some barriers that are far from being technological but are mostly institutional and financial need to be removed. The purpose of this review is to provide information on the potential of using waste heat from conventional thermal power plants (subsequently converted into cogeneration plants) in district heating networks located in the EU-28. For this, a preliminary assessment is conducted in order to show an estimate of the cost of adopting an energy strategy in which district heating networks are a major player of the energy mix. From this assessment, it is possible to see that even though the energy strategy proposed in this paper, which is based on a dramatic increase in the joint use of district heating networks and cogeneration, is capital-intensive and would require an annual investment of roughly 300 billion euros, its adoption would result in a reduction of yearly fuel expenses in the order of 100 billion euros and a shortening of about 15% of the total final energy consumption, which makes it of paramount interest as an enabler of the legal basis of the "Secure, Clean and Efficient Energy" future enacted by the EU-28 Horizon 2020.

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Future trends of building heating and cooling loads and energy consumption in different climates

Cited by 273 publications

References 30 publications

Developing building comfort index from building climate factors in a tropical urban environment

Developing building comfort index from building climate factors in a tropical urban environment

A fresh look at weather impact on peak electricity demand and energy use of buildings using 30-year actual weather data

District Heating and Cogeneration in the EU-28: Current Situation, Potential and Proposed Energy Strategy for Its Generalisation

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