Hamech type KWH, Operation Manual

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HAMECH DTR KWH
5
When using these fuels the thermal efficiency drops, approximately
proportionally to the drop of n.c.v. (in relation to the basic fuel) and
problems with boiler maintenance.
Negligence in frequent cleaning of the boiler may lead to problems with
removal of impurities from heated boiler’s surfaces, decrease of flow in exhaust
channels and drop of boiler’s efficiency.
2.6. Technical data.
TABLE 1.
No. Item Unit Thermal power
1 Rated thermal power kW 55 110 180
2
Adapted for co-operation with the
unit
♦
AZSD-50 AZSD-100 AZSD-180
3
Rated thermal power together
with AZSD
kW 60* 90** 190***
4 Basic fuel for AZSD
Comminuted wood of up to 30 mm granulation and
30-50% humidity
5 Thermal power adjustment range % 30 - 100
6 Heated boiler surface m
2
5,5 11,5 21
7 Admissible static pressure MPa 0,3
8 Max. temp. of outlet water ºC 95
9 Required draft behind the boiler Pa >23 >26 >29
10
Average exhaust gas temp. at
the flue
ºC 200
11
Basic fuel consumption at
nominal power of AZSD
kg/h 24,1* 40,57** 55***
12
Thermal efficiency at nominal
power when coupled with AZSD
% ≥77,7 ≥78,7 ≥78,7
13 Weight with insulation kg 600 1150 1750
14 Funnel height
•
m 8 12 12
15 Funnel diameter
•
mm 190 315 370
16 Water volume l 180 350 800
*- at n.c.v. 12 028 kJ/kg
** - at n.c.v. 9 535 kJ/kg
*** - at n.c.v. 15955 kJ/kg
♦ - connection dimensions – see appropriate drawings
•
- with natural draft
Table 1 continued