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Dolaana Khovalyg

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Related publications (71)

Resiliency lessons of traditional living in nomadic yurts

Technological advancements in the 20th century have significantly changed modern lifestyles and housing. Modern homes are well-insulated, and people in them typically expect minimally varying indoor thermal environments, bought at significant operational a ...

Routledge2022

Impact and comparison of standard-based, stochastic, and tracked user behaviour in open space offices: A Swiss case study

Dolaana Khovalyg, Verena Marie Barthelmes

The role of occupants and their interactions with the building envelope and systems represent a key factor of uncertainty when predicting building energy use with simulation tools. The aim of this simulation-based study is to contribute to gaining further ...

Int Building Performance Simulation Assoc-Ibpsa2022

Local heating and cooling effectiveness - an evaluation method based on calculated local and overall thermal state

Dolaana Khovalyg, Mohamad Rida

The application of Personal Comfort Systems (PCS) in the buildings demonstrated their potential to improve thermal comfort and reduce energy use by the space conditioning HVAC systems. With its personal controllability (on-demand) PCS is a practical soluti ...

TU Delft2022

A mixed-methods case study on resident thermal comfort and attitude towards peak shifting of space heating

Dolaana Khovalyg, Verena Marie Barthelmes

Recent simulation-based studies have indicated that Economic Model Predictive Control (EMPC) of space heating systems can exploit the thermal mass in residential buildings for demand response (DR) purposes in district heating systems. However, there is a l ...

ELSEVIER SCIENCE SA2022

Transient thermal response of opaque building envelope elements: EPFL campus case study

Mohammad Rahiminejad, Dolaana Khovalyg

The building envelope acts as a shield against varying weather conditions and modulates thermal energy flow between outdoors and indoors. The choice of layers used in the assembly impacts the heat loss and gain through the wall structure and potentially ca ...

2021

Assessment of thermal and electrical performance of BIPV façades using simplified simulations

Mohammad Rahiminejad, Dolaana Khovalyg, Arnab Chatterjee

Building integrated photovoltaic (BIPV) facades are a solution to consider when it comes to electricity generation on the building site. One of the main challenges attributes to this technology is finding the best trade-off between the electrical efficienc ...

2021

In-situ measurements of the U-value of a ventilated wall assembly

Mohammad Rahiminejad, Dolaana Khovalyg

The walls in a building envelope have the largest contact area with the exterior environment, and, therefore, a considerable portion of the thermal energy can be lost through the walls compared to the other parts of the building envelope. For energy-saving ...

2021

Review on ventilation rates in the ventilated air-spaces behind common wall assemblies with external cladding

Mohammad Rahiminejad, Dolaana Khovalyg

For many decades, ventilated cavities in wall assemblies of buildings have been essential for creating moisture resilient constructions by allowing airflow within the air gap to promote drying. In addition to that, the airflow in the cavity can enhance the ...

2021

Towards multifunctional building elements: thermal activation of a composite interior GFRP slab

Thomas Keller, Madeline Pugin, Dolaana Khovalyg

Modular multifunctional building elements can overcome major disadvantages of the traditional sequential design and become prospective design solutions for sustainable construction. Thus, this work explores lightweight glass fiber-reinforced polymer (GFRP) ...

IOP Science2021

Adaptive hot water production based on Supervised Learning

Alexandre Massoud Alahi, Dolaana Khovalyg, Amirreza Heidari

A major challenge in the common approach of hot water generation in residential houses lies in the highly stochastic nature of domestic hot water (DHW) demand. Learning hot water use behavior enables water heating systems to continuously adapt to the stoch ...

2021

An adaptive control framework based on Reinforcement learning to balance energy, comfort and hygiene in heat pump water heating systems

François Maréchal, Dolaana Khovalyg, Amirreza Heidari

A major challenge in the operation of water heating systems lies in the highly stochastic nature of occupant behavior in hot water use, which varies over di,erent buildings and can change over the time. However, the current operational strategies of water ...

IOP PUBLISHING LTD2021

Environmental preferences of occupants: A multi-domain approach in the Swiss open office case study

Marilyne Andersen, Jan Wienold, Dusan Licina, Dolaana Khovalyg, Arnab Chatterjee, Caroline Karmann, Verena Marie Barthelmes

Defining indoor environmental conditions that meet the needs and preferences of occupants in open space offices can be challenging since the same space might be occupied by people with different individual needs and preferences regarding what constitutes a ...

IOP Science2021

Dynamic Thermal Performance of the BIPV Facades

Mohammad Rahiminejad, Dolaana Khovalyg

Building-integrated photovoltaics (BIPV), generally integrated on the roofs, are more and more often installed on the facade as a result of a growing need in renewable energy generating surfaces. This allows maximizing the use of the building surfaces to g ...

AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS2021

Performance of lightweight and heavyweight building walls with naturally ventilated passive and active facades

Mohammad Rahiminejad, Dolaana Khovalyg

Well-designed ventilated air-spaces behind external claddings in the building envelope can potentially reduce thermal energy flow in the entire wall structure. In this study, the impact of the dynamic thermo-hydraulic behavior of the flow in the naturally ...

2021

Global Environmental Stimuli and Human-Building Interaction in Open Space Offices: A Swiss Case Study

Marilyne Andersen, Jan Wienold, Dusan Licina, Dolaana Khovalyg, Arnab Chatterjee, Maria Viviana Gonzalez Serrano, Caroline Karmann, Verena Marie Barthelmes

Office employees are exposed to a variety of environmental and contextual stimuli that might drive them to perform control actions, such as operating windows or window blinds. These actions have a significant impact on building energy use and increase unce ...

AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS2021

Impact of the Ventilated Cavity on the Thermal Performance of Traditional Wall Structures

Mohammad Rahiminejad, Dolaana Khovalyg

The amount of heat flux passing through the building envelope directly affects the energy use for the thermal conditioning of the building. The ventilated cavity behind the traditional external claddings (e.g., vinyl siding, brick veneer) adjacent to the w ...

AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS2021

Exploring easy-implementable adaptation strategies to climate change scenarios of existing office buildings: a case study in the Swiss context

Sergi Aguacil Moreno, Cecile Anne Berquand, Dolaana Khovalyg, Verena Marie Barthelmes

European energy policies are aimed at increasing the climate resilience of infrastructure, including new and existing buildings. The implications of future ambient conditions on the energy and environmental performance in buildings and respective adaptatio ...

2021

Optimal design and operation of a building energy hub: A comparison of exergy-based and energy-based optimization in Swiss and Italian case studies

Flourentzos Flourentzou, Joshua Pereira, Dolaana Khovalyg, Amirreza Heidari

With growing concerns on global warming, exergy-based design methods for energy hubs (EHs) in the urban context have been recently investigated to promote more rational and efficient use of energy sources. This study aims to compare exergy-based multi-obje ...

Elsevier2021

Thermal resistance of ventilated air-spaces behind external claddings; definitions and challenges (ASHRAE 1759-RP)

Mohammad Rahiminejad, Dolaana Khovalyg

The presence of an air-space within a building envelope is known to have a varying contribution to the overall thermal performance of the wall assembly due to the combined effect of convection and radiation in the air cavity. In particular, the thermal res ...

2021

Thermal resistance of the ventilated air-spaces behind external claddings; theoretical definition and a parametric study

Mohammad Rahiminejad, Dolaana Khovalyg

The presence of a ventilated air cavity between the external cladding and the wall core of a wall assembly can have a varying contribution to the thermal performance of the building envelope. In particular, the thermal resistance of a ventilated air-space ...

2021

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