Needs and trends in building and HVAC system design tools

Ellis, Michael W.; Mathews, E.H.

doi:10.1016/s0360-1323(01)00040-3

Cited by 60 publications

(24 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…With this increase in system complexity and the lack of knowledge about these new and rapidly improving technologies, design tools are becoming highly necessary to help designers and installers to optimize both the design and the control of buildings. According to Ellis and Mathews (2002) [3], researchers believe that design tools based on an integrated approach where the system efficiency is optimized taking the interactions between the various factors and their constraints into account could lead to savings around 70%.…”

Section: Existing Methodsmentioning

confidence: 99%

“…According to the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), three types of equipment related programs exist to help HVAC designers: (i) electronic catalogues that simply list available components respecting given constraints, (ii) equipment optimizers that propose a range of possible equipment alternatives for given design criteria, and (iii) equipment simulation programs that can take the interactions and constraints of different devices connected to each other into account [3]. While only equipment simulation programs can truly help the design engineer to optimize the system, such a tool is confronted to an intricate problem.…”

Section: Existing Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Economic Optimal HVAC Design for Hybrid GEOTABS Buildings and CO2 Emissions Analysis

Picard

Helsen

2018

Energies

View full text Add to dashboard Cite

Abstract:In the early design phase of a building, the task of the Heating, Ventilation and Air Conditioning (HVAC) engineer is to propose an appropriate HVAC system for a given building. This system should provide thermal comfort to the building occupants at all time, meet the building owner's specific requirements, and have minimal investment, running, maintenance and replacement costs (i.e., the total cost) and energy use or environmental impact. Calculating these different aspects is highly time-consuming and the HVAC engineer will therefore only be able to compare a (very) limited number of alternatives leading to suboptimal designs. This study presents therefore a Python tool that automates the generation of all possible scenarios for given thermal power profiles and energy load and a given database of HVAC components. The tool sizes each scenario properly, computes its present total cost (PC) and the total CO 2 emissions associated with the building energy use. Finally, the different scenarios can be searched and classified to pick the most appropriate scenario. The tool uses static calculations based on standards, manufacturer data and basic assumptions similar to those made by engineers in the early design phase. The current version of the tool is further focused on hybrid GEOTABS building, which combines a GEOthermal heat pump with a Thermally Activated System (TABS). It should further be noted that the tool optimizes the HVAC system but not the building envelope, while, ideally, both should be simultaneously optimized.

show abstract

Section: Existing Methodsmentioning

confidence: 99%

Section: Existing Methodsmentioning

confidence: 99%

Economic Optimal HVAC Design for Hybrid GEOTABS Buildings and CO2 Emissions Analysis

Picard

Helsen

2018

Energies

View full text Add to dashboard Cite

show abstract

“…In developed countries, buildings account for between 30 and 40% of the total energy consumed. Another alarming fact is that their energy consumption seems to be on the rise [1].…”

Section: Introductionmentioning

confidence: 99%

Evaluating performance indices of a shopping centre and implementing HVAC control principles to minimize energy usage

Canbay

Hepbaşlı

Gökçen

2004

Energy and Buildings

View full text Add to dashboard Cite

Heating, ventilating and air-conditioning (HVAC) systems in buildings must be integrated with an efficient control scheme to maintain comfort under any load conditions. Efficient HVAC control is often the most cost-effective option to improve the energy efficiency of a building. However, HVAC processes are non-linear, and characteristics change on a seasonal basis so the effect of changing the control strategy is usually difficult to predict. The present study aims to reduce energy consumption by defining new HVAC control strategies and tuning control loops in a shopping centre. First, an energy audit was performed to investigate the potential for energy savings and to redefine the control scenarios, while a methodology for the shopping centre was developed. Performance indices were then calculated and compared with the yardsticks. Next, normalised performance indices were computed to reach out a better understanding of the building's efficiency. Finally, new strategies were implemented with the help of the existing building management system (BMS) and about 22% of energy saving was achieved.

show abstract

“…Heating, ventilation and air-conditioning systems (HVAC) 2 represent an important share of the electricity consumption (about 30%) in a building [3]. This implies that important energy and economic savings can be achieved by improving the efficiency in these systems, and therefore a substantial reduction in the environmental impacts can be also achieved [4].…”

Section: Introductionmentioning

confidence: 99%

Application of an energy management and control system to assess the potential of different control strategies in HVAC systems

Escrivá-Escrivá

Segura-Heras

Alcázar-Ortega

2010

Energy and Buildings

108

View full text Add to dashboard Cite

ElsevierEscrivá-Escrivá, G.; Segura Heras, I.; Alcázar-Ortega, M. (2010). Application of an energy management and control system to assess the potential of different control strategies in HVAC systems. Energy and Buildings. 42(11):2258-2267. doi:10.1016/j.enbuild.2010 AbstractThe significant and continuous increment in the global electricity consumption is asking for energy saving strategies. Efficient control for heating, ventilation and air-conditioning systems (HVAC) is the most cost-effective way to minimize the use of energy in buildings. In this framework, an energy management and control system (EMCS) has been developed to schedule electricity end-uses in the campus of the Universidad Politécnica de Valencia (UPV), Spain. This paper presents an evaluation performed by using the EMCS of different control strategies for HVAC split systems. It is analyzed the effect of different schedules for a common air-conditioning device and demand response strategies are tested in several situations. The economic saving is calculated taking into account the electricity contract clauses.Finally, a test is made for the control of a group of similar devices in order to reduce the maximum peak power in consumption and to obtain a flexible load shape with the HVAC loads.The studies are then extrapolated to a larger system, the whole University campus, for which energy and economic savings are quantified.

show abstract

Needs and trends in building and HVAC system design tools

Cited by 60 publications

References 21 publications

Economic Optimal HVAC Design for Hybrid GEOTABS Buildings and CO2 Emissions Analysis

Economic Optimal HVAC Design for Hybrid GEOTABS Buildings and CO2 Emissions Analysis

Evaluating performance indices of a shopping centre and implementing HVAC control principles to minimize energy usage

Application of an energy management and control system to assess the potential of different control strategies in HVAC systems

Contact Info

Product

Resources

About