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Comparison Table of Annual Operating Costs for Various Hot Water Systems (Heating 40 tons of tap water) | ||||||||
Total calorie demand (Kcal) | Q=C*M*ΔT=1000Kcal/kg.℃*40T*(55-15)K=1600000KCAL | |||||||
heating mode | Air energy | solar energy | Gas fired boiler | Solar energy+air energy | ||||
Using energy | electric | Solar energy+electricity | Natural gas | electric | ||||
thermal efficiency | 400% | 95% | 85% | 1000% | ||||
Unit price of fuel | 1 ¥/kilowatt-hour | 1 ¥/kilowatt-hour | 3.65 ¥ /m3 | 1 ¥/kilowatt-hour | ||||
Daily operating cost/CNY | 512 | 620 | 800 | 168 | ||||
Annual operating cost/CNY | 184560 | 223680 | 289080 | 61440 | ||||
Security performance | Safe and reliable | Electric heating tubes are prone to aging and have potential leakage hazards | There are safety hazards such as gas leakage, fire, explosion, etc | System stability, safety and reliability | ||||
noise | Small | Small | in | Small | ||||
Environmental Impact Status | Environmentally friendly and pollution-free | No pollution at all | There are combustion gas emissions | Environmentally friendly and pollution-free | ||||
Advantages of solar and air energy systems: | 1. Its energy consumption is much lower than the operating cost indicators of conventional solar energy, air energy, and gas-fired boiler hot water systems .2. Can extend the service life of air energy by more than double 3. Solved the problem of high energy consumption for electric heating in solar energy systems during rainy and cloudy days, and simultaneously leveraged the advantages of both, achieving energy-saving and most reasonable combined use of hot water systems. |
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