Erasmus+ CBHE project 561890-2015E-JP MARUEEB Erasmus+ CBHE project 561890-2015E-JP Intensive Course in «Energy Efficient Buildings» attended by Armenian and Russian Jr. staff Final presentation of the project Trainees Kseniia Maltceva & Ekaterina Sharovarova Saint Petersburg, 18 September 2017 Questo modello può essere utilizzato come file iniziale per la presentazione di materiale didattico per la formazione in gruppo. Sezioni Fare clic con il pulsante destro del mouse su una diapositiva per aggiungere sezioni. Le sezioni possono essere utili per organizzare le diapositive o agevolare la collaborazione tra più autori. Note Utilizzare la sezione Note per indicazioni sull'esecuzione della presentazione oppure per fornire informazioni aggiuntive per il pubblico. Mostrare queste note nella visualizzazione Presentazione durante la presentazione. Valutare con attenzione le dimensioni dei caratteri, importanti per l'accessibilità, la visibilità, la registrazione video e la produzione online. Colori coordinati Prestare particolare attenzione ai grafici, ai diagrammi e alle caselle di testo. Tenere presente che i partecipanti eseguiranno la stampa in bianco e nero o in gradazioni di grigio. Eseguire una stampa di prova per assicurarsi che i colori risultino comunque efficaci e chiari in una stampa in solo bianco e nero e in gradazioni di grigio. Grafica, tabelle e grafici Scegliere la semplicità: se possibile utilizzare stili e colori coerenti, che non rappresentino elementi di distrazione. Assegnare un'etichetta a tutti i grafici e a tutte le tabelle.

UNIGE – MARUEEB intensive course Model for determining the optimal parameters of the building insulation during the reconstruction of panel residential buildings UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course German experience: renovation of large-panel residential buildings UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course Halle, Germany. Renovation project by Stefan Forster Architekten. UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course Leinefelde, Germany UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course In Russia dozens of standard series of panel residential building projects exist. They are differ from each other by periods of construction, plans, number of storeys, construction solutions, thermotechnical properties of panels, etc. For the case study, as a sample to show the working principle of the model, we present the panel residential building of 1-464 series. UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course Large-panel 4-5-storey residential buildings of 1-464 series of typical projects are the most common fully assembled buildings of the first generation built in 1960-1970. The basis for the solution of the houses of the series in question is a cross-walled construction system. UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course The working principle of the model is described for this type of panel residential building. There’re 3 sections: one medium in the middle and two face sections: UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course Thermal analysis The residential building was built with expanded-clay concrete panel walls and reinforced concrete ceilings. At the present, the external walls are not insulated. The values of nominal heat transfer resistance for external walls, roof, double-glass windows and ceiling between basement and 1st floor are lower than required hear transfer resistance and are presented. UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course Thermal analysis The problem of determination of optimal type and thickness of thermal insulation for external wall/roof consists of calculations of: Required heat transfer resistance of external wall/roof of residential building with specified internal conditions and climatic data; Reduced values of heat transfer resistance of external wall/roof; Thermal energy consumption for heating and ventilation during the heating season; UNIGE – MARUEEB intensive course

Results of the thermal analysis Parameters Units Before renovation Option 1:Installation of thermal insulation for exterior walls and replacement of old windows for two-chambered double-glazed windows Option 2:Installation of thermal insulation for exterior walls, replacement of old windows for two-chambered double-glazed windows and and installation of new thermal insulation on the roof and cellings above basement Heat energy consumption for heating and ventilation during the heating period Qhv, kW*h/year 576 949 417 669 148 662 Value of energy savings are due to renovation ∆Q, kW*h/year 159 280 428 287 ∆Q, Gcal 136,95 368,24 UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course Economic calculation Calculation of the required amount of investments I = Cins + Cc Cash flows determination Cash flow = ∆Qi *Pe* ie Discount rate determination NPV determination NPV = 𝑪𝑭 𝟏 (𝟏+𝒓) (𝟏−𝟎,𝟓) + 𝑪𝑭 𝟐 (𝟏+𝒓) (𝟐−𝟎,𝟓) + …+ 𝑪𝑭 𝒏 (𝟏+𝒓) (𝒏−𝟎,𝟓) – I Construction of a payback graph UNIGE – MARUEEB intensive course

Payback period determination UNIGE – MARUEEB intensive course

Three ways to finance energy-efficient renovation Financing of renovation only at the expense of householders, which are accumulated in special funds Use of householders’ funds and bank credit Use of householders’ funds and bank credit with government support UNIGE – MARUEEB intensive course

Payback period determination UNIGE – MARUEEB intensive course

UNIGE – MARUEEB intensive course Conclusions This model can be used to evaluate the economically and energy efficient set of measures for improvement of the residence quality during the reconstruction of large-panel residential buildings of different series and year of construction. UNIGE – MARUEEB intensive course

Thank you very much for your attention! Questions and answers Вопросы и ответы Հարցեր եւ պատասխաններ Domande e risposte For additional info: ksenemaltseva@mail.ru sharovarovakatya@mail.ru UNIGE – MARUEEB intensive course