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close this bookClimate Responsive Building - Appropriate Building Construction in Tropical and Subtropical Regions (SKAT; 1993; 324 pages)
View the document1. Foreword
Open this folder and view contents2. Fundamentals
Open this folder and view contents3. Design rules
close this folder4. Case studies
View the document4.0 Preliminary remarks
View the document4.1 Experiment in Ghardaia, Algeria
View the document4.2 Simulation in Ghardaia, Algeria
View the document4.3 Buildings in Shanti Nagar, Orissa, India
View the document4.4 Experiments in Cairo, Egypt
View the document4.5 Buildings in the Dominican Republic
View the document4.6 Buildings in Kathmandu, Nepal
View the document4.7 Buildings in New Delhi, India
View the document4.8 Movable louvres for a school in Kathmandu, Nepal
View the document4.9 Mountain hut in Langtang National Park, Nepal
Open this folder and view contents5. Appendices

4.9 Mountain hut in Langtang National Park, Nepal

The main points:

In spite of its sophisticated design the building does not fully fulfill expectations, because:

• the system of heating air by a passive solar collector is not efficient enough;
• the users are generally careless about heat conservation and do not close doors.

This house was built in 1979, at an altitude of 4000-m. The southern elevation is fully glazed, consisting of 1/3rd windows and of 2/3rd solar collectors as a solar wall for space heating. Because of the severe climate at this altitude (below zero) the collectors were designed as air heaters.

Other climatic design features were also applied:

• Curved south front for wind protection
• Buffer zones on east and west side
• built-in to the slope on the north side

Experience has shown that the concept was not fully successful:

• The human factor was not sufficiently considered; for instance the outer doors were never closed.

• Mice had blocked the air-ducts with rice which they collect and store in the inaccessible parts of the ducts.

• The efficiency of air-heating compared to water-heating systems is low.

Fig 4/38

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