Behind The Paper: Genetic algorithm-based assessment of kinetic façade prototypes for energy optimization and user comfort: a hotel case study in Iran

Every paper tells a story but most of that story remains invisible behind the final polished version. This research began with a simple question: how can we design building façades that are not only energy-efficient, but also truly responsive to human comfort in challenging climates?
Like

Share this post

Choose a social network to share with, or copy the URL to share elsewhere

This is a representation of how your post may appear on social media. The actual post will vary between social networks

Explore the Research

Springer International Publishing
Springer International Publishing Springer International Publishing

Genetic algorithm-based assessment of kinetic façade prototypes for energy optimization and user comfort: a hotel case study in Iran - Discover Sustainability

Abstract Hotel buildings in hot-humid climates face complex design challenges due to continuous occupancy, diverse functional spaces, and high demands for energy efficiency and occupant comfort. This study investigated how kinetic façade systems can address these challenges by dynamically adapting to environmental conditions. Three façade prototypes—a hexagonal rotating panel system, a Rec-Tri Pro sliding system, and the Al Bahar design inspired by Islamic geometric principles—were modeled and evaluated using environmental simulation tools in Grasshopper (Ladybug and Honeybee). A multi-objective genetic algorithm (Octopus) was employed to perform more than 1800 simulation-based optimization runs. Performance was assessed using four indicators: Energy Use Intensity (EUI), Daylight Autonomy (DA), Discomfort Glare Probability (DGP), and Predicted Mean Vote (PMV). The results indicate that each façade system demonstrated distinct performance strengths. The Al Bahar configuration exhibited the most balanced overall performance, achieving high daylight autonomy (74.8%), controlled glare levels (DGP < 0.35), and stable thermal comfort (PMV ranging between − 0.1 and + 0.4). In contrast, the Rec-Tri system achieved the lowest optimized energy consumption (~ 104.8 kWh/m2). These conclusions are based on a comparative multi-criteria assessment rather than prioritizing a single performance indicator. This study proposed a replicable five-stage framework to support the early-stage design and optimization of responsive kinetic façades in hospitality buildings through integrated simulation and standardized comparative evaluation methods. Graphical Abstract Highlights Kinetic façades integrated with GA for climate-based hotel design optimizationFirst study comparing Hexagon, Rec-Tri Pro, and Star façades in Sari’s climateRec-Tri Pro had lowest energy use intensity (~ 104.8 kWh/m2/year)Star prototype showed best daylight autonomy (~ 74.8%) and glare control (DGP ~ − 3.34)Hexagon prototype offered the most balanced performance among all metrics

 What followed was a long and often demanding journey. One of the most difficult parts was identifying the right kinetic façade prototypes and translating them into working parametric models. Each system whether rotating, sliding, or folding had its own logic, and implementing them accurately was far from straightforward. Many times, models did not behave as expected, simulations failed, or results contradicted assumptions. What appears as a clear comparison in the paper was, in reality, the result of repeated trial and error.

At the same time, conducting this research without access to advanced facilities particularly in Iran, added another layer of challenge. Limited resources meant that every step required more time, creativity, and persistence. Tasks that might be straightforward in well-equipped environments often became complex and time-consuming.Data collection and analysis were equally demanding. Running hundreds of simulations, checking outputs, and ensuring consistency across different performance metrics required continuous energy and focus. There were moments of exhaustion and doubt, especially when progress felt slow or uncertain. Staying motivated throughout this process was, in itself, a challenge.

Yet, over time, patterns began to emerge. Each façade system revealed its own strengths and trade-offs, and the complexity of the problem became clearer. This was perhaps the most rewarding moment when scattered results started to form a coherent narrative, and the research question began to find its answer. Looking back, this paper is not only about kinetic façades or optimization techniques. It is about persistence in the face of limitations, about learning through failure, and about continuing the process even when it becomes difficult. The challenges were not separate from the research—they were part of what shaped it.

Please sign in or register for FREE

If you are a registered user on Research Communities by Springer Nature, please sign in

Follow the Topic

Sustainable Architecture/Green Buildings
Technology and Engineering > Civil Engineering > Building Construction and Design > Sustainable Architecture/Green Buildings
Architecture
Humanities and Social Sciences > Arts > Architecture
Energy Conservation
Physical Sciences > Earth and Environmental Sciences > Environmental Sciences > Energy Policy, Economics and Management > Energy and Behaviour > Energy Conservation
Model Building and Simulation
Humanities and Social Sciences > Society > Sociology > Sociological Methods > Sociological Quantitative Methods > Model Building and Simulation
Housing and Built Environments
Humanities and Social Sciences > Society > Population and Demography > Human Geography > Urban Geography and Urbanism > Housing and Built Environments

Related Collections

With Collections, you can get published faster and increase your visibility.

Food, Societies and Sustainability: Contemporary Concerns around Local Food Production and Consumption

Food goes far beyond nutrition. It reflects sociocultural identities and territorial heritage, consumption dynamics, economic development, public policies, sustainability concerns, food production, distribution and consumption. Understanding food production and food products, practices and strategies offers key insights into both historical traditions and contemporary lifestyles. Around the world, food and drink serve as powerful symbols of identity and attract interest through diverse value chains, economic interests and cultural expressions. On the other hand, traditional and local food systems contribute to cultural heritage, biodiversity conservation and sustainability matters from environmental, sociocultural and economic concerns.

The Collection "Food, societies and sustainability: Contemporary concerns around local food production and consumption" explores how food is locally produced, promoted and protected through public and private initiatives, food-based experiences, media platforms, and sustainable dietary and productive practices. It encourages contributions that examine how food concerns are shaped in contemporary societies, how globalization is affecting local food cultures, emphasizing the role of food as both tangible and intangible cultural heritage. Food preferences, food stereotypes, and attitudes towards food sustainability, analysed through the lenses of generational gaps and gender differences are also welcomed. This Collection seeks original research and case studies using both qualitative and quantitative methods.

Keywords: Food Systems, Food culture, Food Production, Locality, Heritage, Tourism, Gastronomy, Agricultural Biodiversity, Livestock Biodiversity, Food Sustainability, Regenerative Tourism.

This Collection supports and amplifies research related to SDG 2, SDG 3, SDG 4, SDG 5, SDG 10, SDG 12, and SDG 17.

Publishing Model: Open Access

Deadline: Sep 30, 2026

Clean Water and World Sustainability

Water is the lifeblood of our planet, fundamental to all life forms and a cornerstone of human progress. Yet, despite its critical importance, ensuring universal access to clean and safe water remains a pressing global challenge. In the face of complex issues such as climate change, urbanization, and population growth, the need for sustainable water management has never been more urgent. Water security, quality, and accessibility are integral to fulfilling the United Nations' Sustainable Development Goal (SDG) 6, which emphasizes ensuring the availability and sustainable management of water and sanitation for all. However, the path to water sustainability is laden with challenges, ranging from the pollution and contamination of freshwater resources to the degradation of ecosystems that support vital water cycles.

In this context, the proposed research collection, “Clean Water and World Sustainability”, aims to compile pioneering research that addresses the multifaceted issues surrounding clean water, ecosystem health, and global sustainability. This collection seeks to showcase groundbreaking solutions and interdisciplinary approaches that promote sustainable water practices while considering the broader environmental, economic, and social impacts of water use.

We welcome contributions from scholars worldwide that present original research on topics such as: (i) the impact of industrial and agricultural practices on water quality and availability; (ii) advances in water treatment technologies and wastewater management; (iii) the role of freshwater ecosystems in mitigating climate change; (iv) sustainable water governance models and policy frameworks; and (v) the interaction between water scarcity, human health, and socioeconomic development.

This collection provides a unique platform for researchers to disseminate their cutting-edge findings on transformative solutions to the world’s water crisis and contribute to global sustainability efforts. The research presented will not only inform policy decisions but also empower local communities, industry leaders, and environmental advocates to take action in safeguarding and rejuvenating this invaluable resource.

This Collection supports and amplifies research related to: SDG 6 & SDG 11

Keywords: Water Accessibility and Management; Water Security; Water Treatment Technologies; Sustainable Development; Ecosystem Health; Interdisciplinary Approaches; Sewage/Wastewater Reuse

Publishing Model: Open Access

Deadline: Sep 30, 2026