Design of heating and hot water services for a building

Τίτλος

Design of heating and hot water services for a building

Θέμα

Heating

Hot-water heating

Hot water

Δημιουργός

Demetriou, Demetres

Πηγή

Higher Technical Institute

Το πλήρες κείμενο είναι διαθέσιμο από το Υπουργείο Ενέργειας, Εμπορίου Βιομηχανίας και Τουρισμού

Εκδότης

Library of Cyprus University of Technology

Ημερομηνία

1989

Συνεισφέρων

Eleftheriou, Polyvios

Δικαιώματα

Απαγορεύεται η δημοσίευση ή αναπαραγωγή, ηλεκτρονική ή άλλη χωρίς τη γραπτή συγκατάθεση του δημιουργού και κάτοχου των πνευματικών δικαιωμάτων.

Μορφή

pdf

Γλώσσα

en

Τύπος

text

Αναγνωριστικό

MED0042

Σύνοψη

The purpose of a heating system is to produce and maintain comfortable conditions in the space concerned when the outside temperature has dropped below the comfort level.
Obviously the lower the outside temperature, the greater is the capacity of the heating plant required and the more prolonged the severe weather, the greater the energy consumption (fuel, electricity) will be.
Calculations for heat requirements are based upon the difference between design external air temperature and design internal air temperature. The design external air temperature was obtained from records of Meteorological Service for weather conditions of Nicosia, while recommended values for design internal air temperature were taken from CIBS-GUIDE.
Space heating can be achieved either by individual heating units separately for each room (Local Heating) or by central systems with common heat source (Central Heating System) .
Local heating can be achieved by appliances like stoves, open fireplaces, gas-fires, electric heaters electric convectors, etc.
During the past thirty years, however, the development and improvement of Central Heating Systems have enabled the installation of them for domestic use. In these installations fuel is converted to heat in a central plant and the heat is distributed round the building to heat-emitting devices by a heat transfer medium. Water was found to be the most efficient medium for heat transfer and yet the cheapest material (except from air); it is an obvious choice for the purpose, and it is in fact the material most widely used.
The distribution system will consist basically a boiler for the production of heat from fuel, a system of pipes holding the heating medium, leading to heat emitters in the various rooms of the building and subsequentrly retrning to the boiler. Finally a circulating pump will be employed in the system, to be used as a motive power to force the heating medium round the circuit.