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Master's Thesis
Author of thesis: Bc. Dominik Novák
Acad. year: 2025/2026
Supervisor: doc. Ing. Bc. Jan Fišer, Ph.D.
Reviewer: Ing. Jan Pokorný, Ph.D.
This thesis defines the concept of thermal comfort in office buildings and establishes its framework according to current standards and international certification systems (BREEAM, LEED, and WELL). It describes the fundamental microclimate assessment models—namely operative temperature, Fanger's static PMV/PPD model, and adaptive comfort models—for both summer and winter periods, providing a systematic methodological comparison of their approaches and stringency. The practical part of the thesis is conceived as a case study of an office building featuring natural ventilation via windows and cooling provided by split units. The methodology combines experimental measurements using the TESTO 480 multifunction instrument, a questionnaire survey of a balanced sample of 47 respondents (24 men and 23 women), and dynamic simulations within a calibrated building model. The discussion demonstrates a high correlation between the measured data and simulation results, yet reveals a misalignment with the actual subjective perception of the users. This discrepancy is attributed to the fixed normative values for metabolic rate and clothing insulation utilized in simulation tools. Furthermore, the research identifies statistical differences in comfort perception between genders and confirms that the EN ISO 7730 standard underestimates the sensitivity of the female population to cold during the winter season. Furthermore, predictions for the 2050 horizon (under the RCP 8.5 emission scenario) demonstrate the impact of climate change, resulting in an almost twofold increase in the theoretical cooling demand required to maintain thermal comfort and affecting its operational energy consumption. The thesis concludes with a formulation of recommendations tailored for both the design and operational phases of buildings.
Thermal comfort, BREEAM, LEED, WELL, PMV/PPD, office building, dynamic simulation, questionnaire survey, climate change
Date of defence
09.06.2026
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Student seznámil zkušební komisi s průběhem řešení, výsledky a závěry své závěrečné práce. V návaznosti na posudky student zodpověděl dotazy oponenta. V rozpravě k DP byly položeny studentovi dále tyto otázky: Doc. Charvát položil dotaz zaměřený na výsledky dotazníkové studie pro muže a ženy, konkrétně na to, zda student zjišťoval, zda měly hodnocené osoby srovnatelné hodnoty tepelného odporu oděvu. Student dotaz zodpověděl. Profesor Jedelský položil dotaz na hranici požadované relativní vlhkosti uvedené v prezentaci Doc. Lízal položil dotaz zaměřený na nejistoty měření využitého přístroje. Student dotazy včetně navazujících doplňujících otázek zodpověděl.
Language of thesis
Czech
Faculty
Fakulta strojního inženýrství
Department
Energy Institute
Study programme
Power and Thermo-fluid Engineering (N-ETI-P)
Specialization
Environmental Engineering (TEP)
Composition of Committee
doc. Ing. Jaroslav Katolický, Ph.D. (předseda) doc. Ing. Bc. Jan Fišer, Ph.D. (člen) Ing. Stanislav Patočka, Ph.D. (člen) prof. Ing. Jan Jedelský, Ph.D. (místopředseda) doc. Ing. František Lízal, Ph.D. (člen) doc. Ing. Pavel Charvát, Ph.D. (člen)
Supervisor’s reportdoc. Ing. Bc. Jan Fišer, Ph.D.
Grade proposed by supervisor: A
Reviewer’s reportIng. Jan Pokorný, Ph.D.
Grade proposed by reviewer: A
Responsibility: Mgr. et Mgr. Hana Odstrčilová