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Energy and financial evaluation of thermal comfort : the case study of the hotel residence l'Orologio

Lingua, Carola

Energy and financial evaluation of thermal comfort : the case study of the hotel residence l'Orologio.

Rel. Stefano Paolo Corgnati, Marta Carla Bottero, Cristina Becchio, Valentina Fabi. Politecnico di Torino, Corso di laurea magistrale in Architettura Costruzione Città, 2017

Abstract:

Il progetto di ricerca nasce dalla consapevolezza della stretta relazione tra ambiente interno e benessere psicofisico dell'occupante che, quotidianamente, trascorre negli spazi confinati il 90% del proprio tempo. Per garantire condizioni di benessere soddisfacenti nello spazio in cui l'uomo vive e lavora è necessario monitorare, verificare e ottimizzare la qualità ambientale interna.

Il presente lavoro mostra criticamente i risultati di una ricerca letteraria volta ad analizzare e valutare come la qualità dell'ambiente interno agli edifici influenzi il benessere umano. La ricerca è finalizzata a raccogliere informazioni utili per entrambe le valutazioni energetico-ambientale ed economico-finanziarie del comfort interno.

La prima parte dell'elaborato si focalizza sull'individuare i metodi per la valutazione energetica del comfort, andando ad indagare la qualità degli ambienti interni attraverso quattro principali categorie: il comfort termico, la qualità dell'aria interna, il comfort acustico e il comfort visivo. Vengono individuati e analizzati in dettaglio i parametri ambientali e gli indici di valutazione del benessere basandosi sulla normativa UNI EN 15251 come principale riferimento.

La seconda sezione della tesi ha riguardato un'ampia literature review focalizzata sulla ricerca delle diverse metodologie di valutazione finanziaria delle condizioni di comfort interno. Sono state analizzate differenti destinazioni d'uso (hotel, residenza, scuola, ufficio) al fine di dare un maggior margine di confronto nelle considerazioni finali, volte a individuare il metodo più adatto da utilizzare nel settore alberghiero.

L'obiettivo della terza parte riguarda l'applicazione dei metodi, precedentemente individuati e analizzati, al caso studio l'Hotel Residence L'Orologio. Sono state identificate tre zone distinte dell'hotel, le stanze degli ospiti, l'ufficio e la reception. Successivamente sono stati applicati due metodi differenti; in primis, il Contingent Valuation Method ha permesso di valutare il benessere del cliente individuando la sua disponibilità a pagare per condizioni di comfort eccellenti nelle camere d'albergo; in secondo luogo, attraverso la stima dei co-benefici derivanti da un miglior comfort interno, è stato valutato il benessere del dipendente sulla base della sua produttività e del suo salario.

I risultati emersi da questa analisi sono stati applicati ai vari scenari caratterizzati da diversi setting per ciascuna area dell'hotel, così che la differenza tra ciascuno di questi risultati e lo stato di fatto rappresenta il beneficio economico degli scenari proposti. Infine, la combinazione delle tre aree considerate con i quattro possibili setting di temperatura, ha permesso di individuare 64 differenti scenari che sono stati esaminati attraverso un'analisi costi-benefici con l'obbiettivo di individuare la situazione ottimale.

Relators: Stefano Paolo Corgnati, Marta Carla Bottero, Cristina Becchio, Valentina Fabi
Publication type: Printed
Subjects: A Architettura > AM Cost Accounting
S Scienze e Scienze Applicate > SH Fisica tecnica
SS Scienze Sociali ed economiche > SSE Scienze economiche
Corso di laurea: Corso di laurea magistrale in Architettura Costruzione Città
Classe di laurea: UNSPECIFIED
Aziende collaboratrici: UNSPECIFIED
URI: http://webthesis.biblio.polito.it/id/eprint/6328
Chapters:

ABSTRACT

ROAD MAP

1. INTRODUCTION

1.1. Background

1.2. Objective

1.3. Methodology

PART I ENERGY EVALUATION OF INDOOR ENVIRONMENTAL COMFORT

2. INTRODUCTION TO DIFFERENT TYPES OF COMFORT

2.1. Thermal comfort

2.1.1. Background on mainStandards 2.1.1.1 Standard EN 15251

2.1.2. Fanger Method

2.1.2.1. Personal variables

2.1.2.2. Physical variables

2.1.2.3. Thermal comfort indices

2.1.3. Adaptive Method

2.1.4. Local discomfort

2.2. Indoor air quality

2.2.1. Indoor air quality indices

2.2.1.1. Olf and decipol to evaluate IAQ.

2.3. Visual comfort

2.3.1. Visual comfort indices

2.3.1.1. Indices for assessing the quantity of light

- Illuminance

- Daylight Factor

2.3.1.2. Indices for assessing the distribution of light

- Illuminance uniformity

2.3.1.3. Indices for assessing glare

- Luminance

- Discomfort Glare Index

- Unified Glare Rating

2.3.1.4. Indices for assessing the quality of light

- Color Rendering Index

2.4. Acoustic comfort

2.4.1. Acoustic comfort indices

PART II ECONOMIC EVALUATION OF INDOOR ENVIRONMENTAL COMFORT

3. LITERATURE REVIEW

3.1. Hotel buildings' analysis

3.2. Residential buildings' analysis

3.3. School buildings' analysis

3.4. Office buildings' analysis

3.5. Discussion and conclusion

PART III CASE STUDY OF THE HOTEL RESIDENCE L'OROLOGIO

4. DESCRIPTION OF THE CASE STUDY

4.1. The Hotel and its context

4.1.1. Plants of the building

4.2. Characteristics of the building-plant system

4.2.1. Building envelope

4.2.2. Building system

4.3. Flow of guests

5.1. Basic scenario: state of art

5.1.1. Hotel rooms

5.1.1.1. Guests' WTP in hotel rooms

5.1.2. Office

5.1.2.1. Temperature and work performance

5.1.2.2. Ventilation rates and work performance

5.1.3. Reception

5.1.3.1. Temperature and work performance

5.1.3.2. Ventilation rates and work performance

5.1.3.3. Guests' WTP in reception

5.1.4. Energy consumption and costs

5.2. Different scenarios analyzed

6. CONCLUSION

6.1. To sum up

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