8.1 Questionnaire regarding the sizing of DHW cylinders
DHW cylinders in DHW heating systems
1. Address 2. Essential details
Name Required cylinder temper-
ature
°C
Street Flow temperature of the
heat source
°C
Postcode / Town Spread (Δt)
=
Optimised K
Telephone
(for any queries)
Date
=
Required heating output is calculated with EDIS
Project
=
Max. available heating output KW
3. Selection of calculation method
=
Residential units
Type of residential unit N
L
factor Number
1-2 room studio apartment with shower 0.71
3-room apartment with standard bath 0.77
Standard residential unit with standard bath 1.00
Standard residential unit with deluxe bath 1.12
Deluxe apartment with standard bath and shower 1.63
Standard residential unit with guest room 1.89
Other
=
Hotels and guest houses
Equipment Demand (kWh) Number
Single room with 1 bath and 1 washbasin 7.0
Single room with 1 shower and 1 washbasin 3.0
Single room with 1 washbasin 0.8
Double room with 1 bath and 1 washbasin 10.5
Double room with 1 shower and 1 washbasin 4.5
Double room with 1 washbasin 1.2
Covers 0.6
Hotel category (star rating)
Demand period Hours
Heat-up time Hours
=
Catering businesses (e.g. restaurant, canteen, dining hall)
Location of catering
facilities
=
Restaurant
=
Canteen
=
Other
DHW demand l/cover
Number of covers Number of draw-off
points
Demand period Hours
=
Hospitals and clinics
Number of beds DHW demand (45 °C) l/bed
Number of additional draw-off events DHW demand (45 °C) l/draw-off event
Total number of draw-off points Demand period Hours
=
Shared accommodation (e.g. residential home, army barracks)
Number of occupants Shower frequency Number of users/hour and shower
Number of showers DHW demand (45 °C) l/shower taken
Number of additional draw-off events DHW demand l/draw-off event
Number of additional draw-off events
Appendix
50
VIESMANN
DHW heating
8
5414646