Purpose
Autonomous heat supply of production buildings, offices and accommodation spaces by contact water-heaters.
Development data
Technology and equipment for water heating in contact water-heating modules with heat power 1,0 and 0,5 Gcal/h have been developed. In mentioned modules are combined contact and surfaces methods of water heating. It provides water heating till 90-95 ºC, that is higher than in conventional production methods of hot-water supply. At the expense of latent heat evaporation utilization of water vapour from combustion materials the modules efficiency factor is exceeded 96%. The temperature of combustion materials at the output of modules is 50 –55 ºC.
| Feature | 1,0Gkal/h | 0,5Gkal/h |
| The space for modules placing, m2 | 7х4,0 | 1,3х1,5 |
| The height, m | 4,2 | 2,3 |
| Mass of system’s crucial components, kg | 1800 | 950 |
The module is equipped by multiflame burner and combustion chamber with heat-exchanges apparatus that is based above the chamber. 1,0 Gcal/h module is capable to heat one office block or residental construction with a space 10t hous.m² and 0,5 Gkal/h module – 5t hous.m². The cost of 1,0 Gkal produced by modules is half than under centralized heating.
Tte basic features of modules
| Feature | 1,0Gkal/h | 0,5Gkal/h |
| Heat power, Gcal (Mw) | 1(1,16) | 0,5 (0.58) |
| Highest temperature of hot water | 95 | 90 |
| Temperature of combustion materials at the output of module, °C | 50-55 | 50-55 |
| Installations efficiency, % | 96-98 | 96 |
| Fuel | Nat. gas | Nat. gas |
| The number of burners | 1 | 1 |
| Gas flow, nm³/h | 120 | 60 |
| Ventilating airs operation factors | ||
| – Pressure, kPa | 2,5 | 2,5 |
| – Consumption, nm³/h | 1360 | 650 |
| Natural gas pressure in front of burner, kPa | 20 | 20 |
| Highest quantity of combustion products, nm³/h | 1500 | 750 |
| Humidity of combustion products, % | 100 | 100 |
| Nitrogen oxides quantity in the combustion products, mg/m³ | 120 | 120 |